Pay attention to the suitability of choosing ppe

First, on the valve leakage, steam leakage prevention measures.

1. All levels of hydrostatic pressure test must be carried out after entering the factory.

2. Valves that need to be repaired must be ground.

3. During the overhaul process, it must be carefully checked whether the added packing and the packing gland are tightened.

4. The valve must be checked for dust, sand, iron oxides and other debris inside the valve before installation. If any of the above debris must be cleaned, install it.

5. All valves must be installed with the appropriate level of gasket before installation.

6. The fasteners must be tightened when the flange door is installed, and must be tightened in the symmetrical direction when tightening the flange bolts.

7. During the installation of the valve, all valves must be correctly installed according to the system and pressure. It is strictly prohibited to install and mix the valves. To do this, all valves must be numbered and recorded prior to installation.

Second, on pulverized coal spill prevention measures.

1. All flanges must be installed with sealing material.

2. The areas where powder leakage is likely to occur are coal inlet and outlet coal valves, coal feeders, factory flanges, and all flanged parts. For this purpose, we will carry out a comprehensive inspection of all parts of the plant where the equipment is able to leak powder. We will carry out secondary installations and tighten the fasteners if no sealing material is installed.

3. There is a possibility of powder leakage in the pulverized joints. We will take some measures.

3.1 In the weld before the weld area must be carefully polished metal luster and polished the groove required for welding.

3.2 The gap must be reserved before the counterpart and forcibly prohibited.

3.3 Welding consumables must be used correctly, and must be warmed up as required in cold weather.

Third, on the oil system leakage, running oil and other preventive measures.

1. It is very important to do a good job of leaking, running oil, etc. of the oil system.

2. The system with oil tank must be carefully checked and cleaned before installation.

3. Hydraulic pressure test must be performed on equipment with oil cooler.

4. Hydrostatic test and pickling work should also be done for the oil piping system.

5. During the installation of oil pipelines, all flange joints or unions with threaded fasteners must be equipped with oil-resistant rubber pads or oil-resistant asbestos pads.

6. The leakage point of the oil system is mainly concentrated on the flange and the threaded union. Therefore, the bolt must be tightened evenly when installing the flange. Prevent tight or tight situations.

7. In the process of oil filtration, construction personnel must always adhere to the work position, and it is strictly forbidden to take off posts and string posts.

8. It is necessary to stop the oil filter when changing the filter paper.

9. When installing temporary oil filter connecting pipe (high-strength plastic transparent hose), the connector must be firmly tied with lead wire to prevent the oil filter from running off after running the oil filter for a long time.

10. Relocate the responsible construction personnel to look after the oil filter.

11. Before the start of oil circulation in the auxiliary engine oil system, the Engineering Department will organize a detailed technical disclosure of the personnel responsible for the auxiliary engine oil circulation.

Fourth, prevent equipment, pipe fittings from foaming, dripping, dripping and leaking. The following preventive measures are available:

1.2.5Mpa flange gaskets are made of metal winding pad.

2.1.0Mpa-2.5Mpa flange gasket, asbestos pads, and brush black lead powder.

3.1.0Mpa following water pipeline flange gasket using rubber pads, and brushed black lead powder.

4. The packing of the pump adopts the composite packing of PTFE.

5. For the sealing parts of smoke and wind coal pipes, the used asbestos rope should be twisted once and joined to the joint surface in a smooth manner. It is forbidden to tighten the screws and join it forcefully.

Fifth, eliminate the valve leakage has the following measures:

(For the leak-proof valve, we should do the following measures)

1. Pipeline installation and construction, must establish a good sense of quality, consciously clean iron oxide skin and pipe wall, leaving no debris, to ensure that the pipe wall is clean.

2. First, ensure that the valves entering the site must be 100% hydrostatically tested.

3. Valve grinding should be carried out carefully. All valves (except inlet valves) must be sent to the grinding class for dismantling, inspection and maintenance, and responsibility should be fulfilled. Records and logos should be made consciously to facilitate traceability. Important valves should list the details of the second-level acceptance, so that "seal, printing inspection, recordkeeping" requirements.

4. For the first time, the boilers and drainage doors must be determined in advance. Only the valves are allowed to open during the hydrostatic test. Other valves must not be opened at will, so as to protect the valve core.

5. When the pipeline is flushed, it must be opened large and light to prevent the door core from being damaged.

If you missed, why?

(1) Contact between the opening and closing part and the sealing surface of the valve seat;

(2) Filler and valve stem and stuffing box matching place;

(3) The leakage from the previous position in the connection between the valve body and the valve cap is called endoleak, which is usually referred to as lax, and it will affect the ability of the valve to cut off the medium. The last two leaks are called leaks, that is, the medium leaks from the valve to the outside of the valve. Leakage can cause material loss, pollute the environment and cause accidents when severe.

Falling into practice, analyzing internal leakage, endoleaks are generally:

According to the different diameters of the valve, the pressure difference of the system is different from that of the system medium, and there is an allowable inner leakage standard. In a strict sense, a true '0' leaking valve does not exist. Under normal circumstances, small-diameter cut-off valves are easy to make invisible leaks (not zero leaks), while large-diameter valves are difficult to make invisible leaks. When encountering the phenomenon of internal leakage of the valve, first of all, we should try to understand the specific internal leakage, check the allowable leakage standards of the valve, comprehensive analysis of the system's working environment and other factors when the internal leakage occurs, in order to correctly determine the internal leakage of the valve .

(1) The internal leakage of the parallel gate valve, the working principle of the parallel gate valve is to press the valve side of the outlet side and the sealing surface of the valve seat against the pressure difference of the system. Under the condition that the system pressure is very low, the valve is behind Minor internal leakage may occur. In the event of such endoleaks, it is recommended to continue to observe that the valve's tightness is checked when the system inlet pressure reaches the design pressure or normal working pressure. If there is excessive leakage, the valve should be disassembled and the valve sealing surface should be ground. .

(2) The internal leakage of the wedge gate valve is sometimes due to the different control methods of the valve. Due to the manufacturer's selection during design, the corresponding valve stem and stem nut are strength design methods that do not consider torque control. The way of stroke control, if forcibly changing the stroke control mode of the closed position to torque control, may lead to the damage of the valve stem nut, etc. At the same time, it causes the electric head to malfunction when it is opened, and an open torque fault alarm occurs. When encountering the problem of inner leakage of this type of valve, it is usually possible to manually close it again after the electric switch is closed. It is sufficient to close it. If there is still an inner leakage phenomenon after manual closing, this indicates that there is a problem with the sealing surface of the valve. At this time, disassembling grinding treatment is required.

(3) The inner leakage of the check valve and the sealing of the check valve depend on the pressure difference of the system. When the inlet pressure of the check valve is very low, the outlet pressure will slightly increase. Factors are analyzed to determine the amount of internal leakage. According to the analysis structure, it is decided whether or not to perform overhaul work.

(4) The inner leakage of the large-diameter disc valve, the standard of the inner leakage of the large-diameter disc valve is generally very large. When the inlet pressure increases, the outlet pressure will also increase, and this problem should be judged first. The amount of internal leakage is determined based on the amount of internal leakage.

(5) The inner leakage of the regulating valve, due to the different types of regulating valves, is not the same as the standard for inner leakage. At the same time, the regulating valve generally uses the stroke control method (without the torque control method), so it is generally present within Leakage phenomenon. The inner leakage of the regulating valve should be treated differently. The regulating valve with special inner leakage should be considered when designing and manufacturing. There are many such contradictions in the XX nuclear power plant. Many valves have to be forced into torque control, which is unfavorable to the operation of the regulating valve.

More specific point:

(1) Valve trim material selection and poor heat treatment, hardness is not enough, easily damaged by high-speed fluid.

(2) Due to the limitation of the valve structure, the energy (velocity) of the fluid is not effectively consumed when passing through the valve, and the impact abrasion force on the sealing surface is large; when the velocity is too large, the pressure behind the valve is too small, lower than the saturation pressure, and cavitation occurs. During the cavitation process, all the energy of the bubble collapses at the rupture point and generates several kilonewtons of impact force. The shock wave pressure is as high as 2×103Mpa, which greatly exceeds the fatigue damage limit of the existing metal materials. Very hard discs and seats are also damaged in a very short time and leaks occur.

(3) The valve operates under a small opening for a long time, the flow velocity is too high, the impact force is large, and the valve trim is easily damaged.

plastic spools model

plastic spools model,High Quality plastic spools model,plastic spools model Details, Changzhou Wujin Xinda Plastic Reels Co., Ltd.

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Morphological characteristics

Evergreen parasitic shrubs. Old branches are glabrous, with grayish yellow lenticels, and branchlets slightly darker and grayer. Leaves alternate or nearly opposite, leathery, ovoid to oblong-ovate, 3-8cm long, 2-5cm wide, apex obtuse, entire, young when covered; petiole length 1 ~ 1.5cm. Cymbidium 1 to 3 Polygonella japonica, pedicel, pedicel, calyx and corolla stellate pubescent puberulent; calyx subglobose, connate with ovary; corolla narrow, slightly curved, mauve, apex 4 Split; stamens 4; ovary inferior, 1-loculed. Berries oval, with knobs. Flowering from August to September, fruiting period from September to October.

Urinary and Reproductive System

silicone foley catheter,foley catheter with temperature sensor,hsg catheter,cervical ripening balloon

Anesthesia Medical Co., Ltd. , https://www.sinoanesthesia.com

Pharmacological effects

Theory One

1. Hypotensive, diuretic, dilated blood vessels: anesthetized dogs and cats are treated with 0.4-0.5g/kg gavage of Mulberry decoction, or 0.1-0.25g/kg intravenously, all have antihypertensive and diuretic effects. 1. The isolated rabbit ear blood vessels have an expanding effect on cholesterol arteriosclerosis.

2. Anticonvulsant: Mulberry decoction has a sedative effect on caffeine-induced mouse excitement. Can delay the death of mice caused by pentazole convulsions.

3. Anti-virus: 10% decoction or infusion inhibits poliovirus.

4. Antithrombotic: Mori parasitic decoction 0.1g/ml and the aqueous phase extracted by ether 0.13g/ml, rabbit blood in vitro test, all have significant antithrombotic effect.

5. Toxicity: The LD50 of mice injected with Morinda decoction is 11.24g/kg.

Theory two

1. Antihypertensive effect: The ethanol extract of the fresh fruit of Echinocereus sinensis was formulated as a 10% solution of physiological saline. Intravenous injection of 1mL/kg to dogs and rabbits reduced blood pressure by an average of 32% and maintained for 3 minutes. Intraperitoneal injection of 5mL/kg, blood pressure to maintain more than 1h. Ginkgo has also significant antihypertensive effect, and its short-term antihypertensive components are choline, acetylcholine, and propionylcholine. The long-lasting antihypertensive component is a mistletoe. Traditional Chinese medicines that can change enkephalin content are rarely reported, and mistletoe is one of them. Its concentrated decoction can restore normal blood pressure and enkephalin content in brain regions of deoxycortiغير مجاز مي باشدterone acetate-induced hypertensive rats, indicating that mistletoe abnormalities of central enkephalin in DOCA-induced hypertensive rats Regulatory effect. The mechanism of antihypertensive action of mistletoe is not yet clear. It may be caused by the inhibition of the vasomotor center of the medulla oblongata. It may also be caused by the reflexive inhibition of the vasoconstrictor center by acting on the endoreceptors of the circulatory system. It is also believed that the ginkgo mistletoe water The extract has the characteristics of cholinergic antihypertensive effect.

2. Anti-arrhythmia: Mistletoe has different effects on arrhythmia caused by different causes. With atrial fibrillation and ventricular premature beats the best effect. In terms of etiology, the drug has better arrhythmia caused by myocardial infarction and has an effective rate of 75%. It also has a certain effect on arrhythmia caused by myocarditis sequelae, with an effective rate of 71.4%. It has a heart rhythm caused by coronary heart disease and angina pectoris. The effect of abnormalities was slightly poor, with an effective rate of 57.1%. With the extension of treatment, the effectiveness has also improved.

Wu Jixiong et al. Observed the effect of flavonoid glyغير مجاز مي باشدides of Vulgaris on rat skin cells and guinea pig ventricular myocytes by means of glass electrode and selective membrane channel blockers. The results showed that 100μg/mL mistletoe accelerated the recovery of FAP. The extreme process increases the delta ERP/ΔAPD ratio, which is related to the reduction of slow inward ion currents and the increase of time-dependent potassium currents. It is suggested that the anti-tachyarrhythmia of mistletoe is related to its relative prolongation of ERP elimination.

3. Increase coronary blood flow, improve coronary circulation, and increase cardiac contractility: Experimental studies have shown that mistletoe increases the coronary flow and improves coronary circulation in both normal and vibrating hearts, both for whole animals and for isolated hearts. effect. Mistletoe can increase coronary flow mainly through direct expansion of coronary artery, so mistletoe is more suitable for coronary heart disease patients with hypertension and tachycardia. It is valuable as a drug for improving coronary circulation. It has also been reported that mistletoe injection can significantly or very significantly affect the duration of systole in normal anesthetized dogs and acute myocardial infarction dogs, in which the shortening of the pre-ejection shortening, the prolongation of left ventricular ejection time, and the decrease of the ratio of PEP/LVET are the most obvious, indicating that Parasitism can significantly improve right ventricular systolic function.

4. Decreased myocardial oxygen consumption: Mistletoe significantly reduced oxygen consumption, regardless of whether the self-control or between-group controls had significant significance (P<0.05). Zhu Shunhe and others have demonstrated that mistletoe can significantly reduce the cAMP content in ischemic myocardium, decrease the A/G ratio, and inhibit the metabolic and electrophysiological disorders caused by excessive cAMP increase. Therefore, it is a hopeful Chinese medicine for protecting the heart. .

5. Inhibition of platelet aggregation, anti-thrombosis, and improvement of microcirculation: The total gluغير مجاز مي باشدides of mistletoe can inhibit the aggregation of platelets and prevent the release of active substances, thereby avoiding vasoconstriction and thrombosis. In vitro and in vivo experiments demonstrated that the mistletoe had a significant inhibitory effect on ADP-induced platelet aggregation. It also has an inhibitory effect on experimental thrombosis in rats. Inhibition of thrombosis was most marked by intravenous injection of 10.0 mg/kg. The inhibition rate was 57% after 5 minutes, and the inhibitory effect lasted for 0.5 h. Zhu Weimin et al. observed 48 patients with old myocardial infarction. After treatment with mistletoe injection, the microcirculatory disturbance was significantly improved. The flow rate of microcirculation flow from cloud flocculation to linear flow accounted for 64% to 86%. It can make micro-vascular recanalization, increased micro-blood flow, leukocyte diغير مجاز مي باشدgregation, platelet aggregation rate decreased, change the clinical "bloody stasis" and improve the heart function in patients with coronary heart disease. Mistletoe inhibits the production of platelet TXA2 and does not affect the formation of EC in the blood vessel wall. Therefore, it can improve the balance of PGT2-TXA2 lost in patients with coronary heart disease and achieve the purpose of preventing and treating coronary heart disease. Cai Weijing et al. demonstrated that mistletoe can inhibit platelet aggregation and TXA2 release in humans, and studied the effect of mistletoe on human umbilical vein endothelial cells and functions in vitro, and evaluated its clinical value. It was demonstrated that different concentrations of mistletoe have different effects on endothelial cells.

6. Anti-tumor effects: The main components of Ginkgo biloba are proteins, polysaccharides, lipids and glycoproteins, which have a direct cytostatic effect. Both in vitro and in vivo have shown that mistletoe has no special effect on malignant tumors with other cytostatic agents, and its antitumor effect is 10 times more powerful than cyclophosphamide. Nichaus et al. studied the presence of mistletoe protein in mice to prevent tumors and stimulate thymus production. Using a subtoxic dose of iv or ip, 200 mice were dissected and the spleen and thymus cells became a significant proliferation. The mistletoe protein can inhibit the migrating tumor cells, and it is most effective to perform preventive injection before the tumor cells migrate. A variety of protein components are isolated from Mistletoe, and antitumor activity is exhibited at very small doses. Their tumor suppressing effects are not related to their toxicity, and proteins with very weak denaturation also have anti-cancer effects. Anti-cancer mechanism is to interfere with the genetic information of cells, showing selective inhibition of DNA levels, and has specific effects on malignant HeLa cells and benign amniocytes. Mistletoe has an adjuvant effect on mouse antibody formation and SRPC-induced delayed hypersensitivity reaction. This plant juice can stimulate MPS and induce inflammatory reaction, which may be an important mechanism for cancer immunotherapy.

The indications for the treatment of cancer by mistletoe are very broad. Not only is it suitable for precancerous conditions, but it is also suitable for preventing postoperative recurrences. Follow-up observations are made on the efficacy of postoperative treatment of breast cancer. There are 319 cases in the treatment group and 253 cases in the control group. The results showed that the treatment group improved significantly in all aspects, and compared with the best results in the world literature after 5 years, it was still higher than the average level after 10 years. In addition, it is also suitable for advanced tumors that are inoperable, can prolong life, improve general patient symptoms, relieve pain, relieve the course of the disease, and rarely require regular use of analgesics for very severe cases. In addition, postoperative gastric cancer, colon cancer, and lung cancer all improved survival. It has good curative effect on stage III ovarian cancer, advanced rectal cancer, colon cancer and bladder cancer. The total alkaloids of mistletoe also have anti-tumor effects. In addition to the strong inhibitory effect on primary transplanted tumors of animals, mistletoe total alkaloids also have a significant role in inhibiting tumor cell metastasis.

7. Treatment of hepatitis: mistletoe treatment of hepatitis B has a certain effect. There have been 34 cases of HBغير مجاز مي باشد-positive hepatitis treated with mistletoe, 10 cases of negative conversion, and the remaining 24 cases of HBغير مجاز مي باشد titers have decreased to varying degrees. Oleanolic acid contained in mistletoe has the effect of eliminating non-specific inflammation and edema in the liver. The flavonoids can also expand blood vessels in the liver and increase hepatic blood flow to enable hepatocytes to repair toxicity. Therefore, mistletoe can also be used to treat hepatitis. The Chinese medicine is utilized. It has also been reported that the mistletoe has a cell agglutination activity and an anti-exudative effect, excitates the uterus, and reduces cholesterol-induced atherosclerotic plaque formation.

Theory Three

1. Antihypertensive effect of the product's water leaching solution, ethanol - water leaching solution, 30% ethanol leaching solution, have reduced blood pressure in anesthetized animals. Anesthetized cats and dogs were treated with 0.4 to 0.5 g/kg gavage of the leaves and leaves of Mulberry Mulberry, or intravenously at 0.1 to 0.25 g/kg, all had antihypertensive effect and maintained for a long time. Tolerance phenomenon, cut off the vagus nerve or injection of atropine can only weaken but can not completely eliminate its antihypertensive effect, no antagonistic or enhancing effect on epinephrine, blood pressure and sinus nerve has nothing to do. The principle of this antihypertensive effect has been reported as central or reflex, that is, due to central sedation and reduced sympathetic and vasomotor center excitability; or acting on endoreceptors, causing hypotensive reflexes. the result of.

Alcohol extracts, stems and leaves of fresh mistletoe leaves also have antihypertensive effect, the latter combined with hawthorn, garlic, stinkbug, its antihypertensive effect is greatly enhanced, the role of time has also been extended. For the principle of this kind of antihypertensive effect, it is generally believed that the mistletoe stimulates the circulatory system's internal receptors, inhibits the vasomotor center through vagal afferent fibers, and produces antihypertensive effect. Cut off the vagus nerve of the animal, that is no longer cause blood pressure; and atropine-treated animals, it can only eliminate its role in slowing down the heart rate, but can not eliminate its antihypertensive effect.

The flat storks have a temporary antihypertensive effect on anesthetized dogs and are susceptible to rapid tolerance.

2. Sedative effect of intraperitoneal injection of Mulberry Mushroom 2g/kg can inhibit the caffeine-induced excitement and prolong the death time of mice induced by pentylenetetrazol.

3. Diuresis has a more pronounced diuretic effect of L. parasitica. Anesthetized dog intravenous injection of 0.5mg/kg can cause diuresis, and the dose increase is more significant. In chronic rat experiments, there is significant diuretic effect regardless of oral or injection. The diuretic effect is not as strong as aminophylline, but its toxicity is only 1/4 of aminophylline, so the treatment rate is large.

4. The effect of cardiovascular on normal pulsatile and vibrated isolated guinea pig heart samples, Sansha (granules) have the role of relaxation of coronary blood vessels, increase coronary flow, and can combat pituitrin. Experiments have shown that: total flavonoids 20 ~ 25mg that has a sustained expansion of coronary and cardiac effect, its concentration of 1% that can increase the coronary flow in isolated guinea pig heart 2 ~ 3 times, and does not seem to increase myocardial oxygen consumption. Myocardial contractility is first suppressed and then increased. There is no direct dilatation of normal isolated rabbit ear blood vessels, but the isolated rabbit ear blood vessels of cholesterol-induced arteriosclerosis have obvious direct expansion.

5. The role of anti-pathogenic microorganisms Sansha decoction in vitro (monkey kidney monolayer epithelial tissue culture) on the poliovirus and some enteric viruses have a significant inhibitory effect. Poliovirus is directly inactivated by direct contact with the drug for one hour, which is inhibited. In vitro can inhibit the growth of Salmonella typhi and Staphylococcus.

Handheld Laser Device

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Shenzhen Guangyang Zhongkang Technology Co., Ltd. , https://www.nirlighttherapy.com

1. In the cascade test, the low-voltage windings of the second and third test transformers shall be X-terminal, and the F-ends of the measurement windings and the X-end (high-voltage end) of the high-voltage windings shall be connected to the test transformer housing of this stage. The outer shell of the second and third test transformers must be grounded through the insulating bracket.

2. Pick up the working circuit according to your test. The test transformer housing and the operating system housing must be reliably grounded. The X terminal (high voltage tail) of the high-voltage winding of the test transformer and the F terminal of the measurement winding must be reliably grounded.

3. Before the power is turned on, the voltage regulator of the operating system must be turned to the zero position to turn on the power, switch on, and start boosting.

4. From zero, rotate the regulator handwheel at a constant speed to boost the pressure. Boosting methods include: fast boosting method, that is, 20s step-by-step boosting method; slow boosting method, that is, 60s step-by-step boosting method; extremely slow boosting method for selection. The voltage rises from zero from a certain boost mode and speed up to 75% of the rated test voltage you need, then rises to the required test voltage at 2% of the rated test voltage per second and pays close attention to the measurement. Instrumentation and the condition of the product being tested. If the indicator of the measuring instrument and the abnormal condition of the tested product are found during the boosting process or during the test, the pressure shall be immediately depressurized, the power shall be cut off, and the situation shall be ascertained.

5, this product must not exceed the rated parameters. In addition to the tests necessary, never voltage power or power off.

6. After the test is complete, the regulator should be returned to zero at a constant speed within a few seconds, and then cut off the power supply.

Dear Customer:

Thank you for your attention to our products. In addition to this product introduction, our company also introduces the vacuum tester, infrared thermometer, dielectric loss tester, high voltage test transformer, vacuum oil filter, high current generator, etc. If you are interested in our products, welcome to inquire. Thank you!

LED 7 segment display

LED DOT Matrix,Gns-4041ae LED DOT Matrix,Gns-4041AG LED DOT Matrix

LED Globe,LED Candle bulb Co., Ltd. , http://www.epeslight.com

According to statistics, China's locks are exported to 160 countries and regions, and annual export earnings reach 8.374 billion yuan. China has become the world's largest producer and consumer of locks. With the increasing demand for decorative home hardware, the lock market will continue to grow at a rate of over 20% per year.

In recent years, the production of residential houses, commercial housing, and automobiles in China has also rapidly increased, making the country’s demand for various kinds of locks increasingly large.

According to the data of the Ministry of Commerce, in the first half of 2007, the motor vehicle output was 4.95 million, an increase of 22.9% over the same period of last year; of which, 2.43 million were passenger cars, which was an increase of 25.8% from the same period of last year. The rapid increase in automobile output provided a larger market for the automobile locks. The development space, especially the high-end smart anti-theft lock in the car lock, has great market potential.

In addition, the production and sales volume of agricultural vehicles in China has increased significantly. With the “automation” of agricultural vehicles, the demand for locks will also increase substantially. The development of agricultural vehicles will provide a broad market for the lock industry.

From the perspective of the lock market, the lock market will remain dominated by mechanical locks for a long time. China’s domestic demand and exports are getting higher and higher, and they are growing rapidly. The increase in demand provides a good space for the development of locks in China.

At present, China's lock products have evolved from the past with single mechanical marble padlocks and door locks to multiple fields, multi-colors, multi-functions, and many varieties. There are more than 8 000 varieties of products in more than 100 categories and more than 20 products in the industry. The product structure also ranges from traditional single-leaf locks, double-toned door locks and other mechanical products to ball-shaped door locks, handle locks and electronic locks. , magnetic card locks, IC locks, car locks, motorcycle locks, fingerprint locks, digital locks and other electronic, mechanical and electrical integration, biometrics, intelligent direction, and focus on the combination of product functionality and decorative, basically formed High, medium and low-end supporting product system.

However, the use of locks in high-end hotels and hotels in China is still dependent on imports. The domestic market for high-end locks is still controlled by foreign locks. Our products currently have no competitive power. Although China's lock manufacturing industry has improved both in terms of product technology and product quality, the development of high-end locks still requires efforts.

Therefore, our future development direction is:

1. The development of high-end locks The high-end locks have a bright market prospect. Because the high-end locks have high technical content, more prominent humanity and individualized characteristics, the product profits are also relatively high. Should increase investment in high-tech locks and promote the structural upgrading of China's lock industry.

2. The implementation of brand-name strategic locks industry well-known enterprises and brands can have enormous economic and social benefits. After China's accession to the WTO, China's locks face more severe challenges, and competition encourages companies to respond positively, so that China's production of locks from big countries to powerful countries.

3. The implementation of diversified development of locks companies to accurately position themselves and the market, the implementation of multiple development. In the so-called field, we design locks that cater to the public and have individual needs, avoiding the fierce competition brought about by similar public locks. In addition, companies must take the road of a diversified market and avoid being affected by a certain factor and affecting the fundamental development of the company.

Solar Lantern

Solar Lantern,Portable Solar Lantern,Solar Light

Integrated Solar Street Light CO,.Ltd , http://www.nssolarlight.com

When you see thick dust on the windowsill, your mood is gone. This is because the windows fell off the chain at a critical moment, which resulted in poor sealing and poor sound insulation. It was like wearing a hole in the jacket. The external maintenance system of the entire room could not be tightly integrated, resulting in failure of the perfect home. One stroke.

Although the hardware is small, it affects the service life of household products. It is like a human joint and is often ignored, but it plays a vital role in the body. A doorknob has been used by us for many years and it is unimaginable. Because of the expendable nature of hardware, many furniture brands do not dare to give a warranty period of too high, but in fact, because hardware has such a special nature, it requires more perfect quality, so consumers should ask: Hardware is not The lifetime warranty?

should

Reason 1: Hardware Quality Relationship Product Lifetime

Although the hardware is small, it is to a certain extent related to the life of large home products. A wooden door, a bookcase, a set of cupboards ... The manufacturers of these products are experts in the selection and use of wood, they can tell at a glance which piece of wood is suitable for the door, but they may not be good at producing quality hardware.

Reason 2: Hardware is easy to wear out

Hardware as a connection point, its flexibility and longevity largely affect the overall product uغير مجاز مي باشدe. If the hardware is broken early and the doors do not open and close smoothly... then even if the quality of the product is better, it will only be a defective product.

Should not

One reason: most businesses do not promise hardware lifetime warranty

At present, some mainstream brands promise hardware warranty within three years. Within three years, hardware problems free warranty, overdue fees. There are also some brands, due to the use of high quality imported hardware, promised a lifetime warranty on the hardware, as long as the problem is free of maintenance. In this regard, the industry said that dare to promise a lifetime warranty is the confidence of their products, but also reflected from the side of the product quality. But the promise of a lifetime warranty is a test for companies, so brands often take a cautious approach.

Reason 2: "Lifetime Warranty" is just a selling point

For the hardware warranty, some brands offer a free warranty within three years and a lifetime maintenance commitment. The so-called "life-long maintenance" does not mean that it can be "free for life." For the lifetime warranty, some brands use this as a selling point to build a brand image, but in fact it does not really guarantee free lifetime warranty, or it will charge a certain fee.

Doors and windows as the external protective structure of the building, its energy-saving performance has a direct impact on building energy efficiency, and door and window hardware as an annex in the doors and windows, when supporting the doors and windows, its advantages and disadvantages directly affect the energy efficiency of doors and windows, high quality The door and window hardware plays an important role in building energy efficiency.

stone crusher

Sand Gravel Pump,Dredging Pumps Co., Ltd. , http://www.nspumpparts.com

Application scope:

This standard specifies the terms, classification, technical requirements, test methods, inspection rules, signs, packaging, storage and transportation of air springs for railway vehicles.

This standard applies to new air springs for railway vehicles. Air springs for other rail vehicles such as subways, light rails, and trains can be referred to for use.

skills requirement:

1, the use of air springs at ambient temperature -40 °C -50 °C.

2, air springs should be able to adapt to the requirements of the vehicle operating environment.

3, the common maximum working pressure of air spring is 0.5MPa.

4. The cross-section of the air spring capsule, the thickness of the inner layer, the middle layer, and the outer layer of the longitudinal section, the density, the angle and the cord evenness of the ply should meet the design requirements, and the position of the ply should be the part with the greatest force.

5. The vertical and horizontal stiffness of air springs should meet the requirements of users; air springs with damping devices should have damping values ​​that meet the requirements of users.

6. The internal pressure of the air spring should not be lower than 2.0 MPa.

7. In the air spring airtightness test, under the pressure of 0.5MPa, after the pressure is stable, the pressure is maintained for 10min, the internal pressure drop should not exceed 0.01MPa, or there is no continuous bubble; in the low temperature airtightness test , Pressure 10min, internal pressure drop should not exceed 0.02MPao.

8. No leakage and abnormal deformation phenomenon should be applied to the air spring horizontal large displacement test without bolster structure bogie.

9. After the air spring fatigue test is over, the appearance of the air spring should not be abnormal such as bulges or cracks. The surface of the rubber bladder should not be worn out until the cord is exposed.

Air spring characteristic test:

1. Vertical static stiffness test The air spring is placed at a standard height and filled with compressed air of 0.1 MPa, 0.2 MPa, 0.3 MPa, 0.4 MPa, and 0.5 MPa. At each air pressure, the vibration frequency is set to 0.02 Hz. 30mm (or according to the specific structure and size) the load and displacement relationship in the vertical stroke, thereby determining the vertical static stiffness of the air spring.

The test was conducted in the absence of additional air chambers and additional air chambers.

2. Lateral static stiffness test: The air spring is kept at a standard height, filled with compressed air of 0.1MPa, 0.2MPa, 0.3MPa, 0.4MPa, and 0.5MPa. At each air pressure, the vibration frequency is set to 0.02Hz. 30mm - 30~ horizontal stroke within the load and displacement relationship, thereby determining the horizontal static stiffness of the air spring.

The test is carried out with a combination of two air springs. It can also be done with a single air spring.

3. Vertical dynamic stiffness and damping coefficient test The air spring is kept at a standard height and filled with compressed air of 0.1 MPa, 0.2 MPa, 0.3 MPa, 0.4 MPa, and 0.5 MPa. Under each air pressure, the amplitude of the air spring is taken as 10mm, frequency is 0.5Hz-3Hz vertical vibration, draw a load-displacement curve, which determines the vertical dynamic stiffness and damping coefficient of the air spring.

The test was conducted in the absence of additional air chambers and additional air chambers.

4. Lateral dynamic stiffness test The air spring is kept at a standard height, filled with compressed air of 0.1 MPa, 0.2 MPa, 0.3 MPa, 0.4 MPa, and 0.5 MPa. Under each air pressure, the air spring has an amplitude of 10 mm and the frequency is 0.5Hz-V1Hz horizontal vibration, draw a load-displacement curve, which determines the horizontal dynamic stiffness of the air spring.

The test can be performed with two air spring combinations, or with a single air spring.

For more details, please contact: Jinan Zhongchuang Industrial Testing System Co., Ltd. Technical Department

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De Fenner underwear (Shenzhen) Co., Ltd. under the Hong Kong Di Fenner Group, specializing in underwear, home service, warm clothing, fashion socks, jewelry, T-shirts, daily necessities and other products of the design, production and marketing of large apparel Group companies. Mainland headquarters in China's fashion frontier city - Shenzhen.

Defina Group has experienced team of professional designers and the world's best fabric suppliers, products from the main fabric, Accessories to the finished product packaging are carefully selected. Since entering the mainland, with her excellent design team, Di Fenna has obtained a number of national patents. The group has many years of overseas expansion and production experience and has a strong production base. She is adept at product development, production control and every process , Full of professional production experience of the technical staff strict requirements, so that product quality standards to achieve excellence and be protected.

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Di Fenna Group adhering to the "honesty, cooperation and win-win" spirit of enterprise and marketing ideas, formed a professional marketing team. Its distinctive distinctive lingerie lifestyle model, incorporating different types of different brands of product styles, the concept of natural recreation successfully implanted in the market operation, the underwear industry in the traditional model stores and shopping malls counters unique; and in the The mainland market has achieved good results, the Group opened in major cities in mainland China have counters and stores and Di Fenner underwear home life Museum Terminal; has opened in the mainland market more than 1,000 stores and shopping malls counters and Di Fen Na underwear living center terminal. In addition, the international market of the Group has developed rapidly, showing a good momentum of steady development of the domestic and international markets.

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Since July last year, the “lead faucet exceeds the standard” is like a heavy weight, which has exploded the sensitive nerves of the public and caused consumers to question the faucet production line. In order to fully understand the current status of production of copper and stainless steel faucets from major brands in China and around the world, the National Federation of Industrial and Commercial Sanitary Ware Committee of the United Nations Home Building Materials Testing Center invited the Chinese home mainstream media matrix to launch the China Plumbing Hardware Industry Enterprise in early September. Field visits.

According to R&D experts from brand companies such as Lu Da, Jiu Mu, Zhong Yu, Shen Lu Da, and Brilliant Plumbing, copper and lead are accompanied by each other. There is no 100% pure copper in nature. Brass requires a small amount of lead during the production of the faucet to improve the cutting performance of the brass. If lead is not added to the production of faucets, not only cutting difficulties, poor forging properties, etc., but also finished products will crack due to poor stress corrosion resistance. According to Xie Xin, Secretary-General of the All-China Federation of Industrial and Commercial Sanitary Ware Committees, “The current copper faucet is almost harmless to the human body in normal use. The lead that the human body absorbs from different channels every day has a safe value. The faucet is in water. In the process of flow, the precipitation of lead is almost undetectable, and the panic of faucet lead poisoning is an unfounded fallacy."

According to Hong Guangming, general manager of Shenluda Group, the mainstream taps in developed countries in Europe and America use brass as the main raw material, mainly because of the antibacterial properties of copper. This is the advantage that other materials, such as stainless steel and plastic, do not have. Zhu Jianhong, deputy general manager of Luda Group, believes that China has the world's largest manufacturing base for low-lead copper, and it is the world leader in the research, production, and processing of low-lead copper. Lin Hsiao-fat, chairman of Jiumu Kitchen, said that the laboratory tests found that stainless steel faucets do not contain lead, but they contain elements such as nickel, chromium, and manganese. Excessive precipitation of these heavy metals can also cause serious damage to the human body. Cai Yu, CEO of Zhongyu Sanitary Co., Ltd., said that the completely lead-free copper faucet does not exist, and the concept of lead-free in the market actually refers to low-lead, and the requirements for copper components, process technology and electroplating treatment are high, and the powerful enterprises Conditional production.

According to relevant sources, the National Building Materials Industry Construction Hardware Plumbing Product Quality Supervision, Inspection and Test Center launched a new version of GB 18145 (instead of the 2003 version) "Ceramic Sealed Tap" in 2014, which made mandatory the precipitation of 17 kinds of heavy metals. Equivalent to the North American NSF61 standard, has strict control over the market. Cai Shizhan, deputy general manager of the brilliant plumbing executive, said that all the powerful companies in the Chinese sanitary ware industry participated in the research and formulation of this standard. Only 30-35% of medium-sized and large enterprises could adapt to the new standard, and some small and medium-sized enterprises without strength faced elimination. The new national standard will play a powerful role in promoting the industry.

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[Global Science and Technology, Hong Kong, July 5th Reporter Xinyue] This afternoon, the Digital Kingdom hosted a conference with the theme of “transformation,” officially announcing the participation of a number of industry players, including former Youku president Wei Ming. Among them, former Youku Tudou Co-President Wei Ming served as Executive Director of Digital Kingdom, Vice Chairman of the Board of Directors and Greater China CEO; CITIC Executive Director, Deputy General Manager and member of the Executive Committee Pu Jian and Softbank China Capital Management Partner Song Anxi as Digital Kingdom Non-executive Director; John Lagerling, Facebook’s former Vice President of Mobile Phone and Product Cooperative Business Development, is Independent Non-executive Director of Digital Kingdom.

The chairman of Digital Kingdom’s Board of Directors Zhou Yongming stated at the press conference that China is the most important market. Digital Kingdom plans to expand the market in China, India and Europe, transforming the company's special effects technology into VR technology, and expand its live broadcast business globally. The "virtual person" will also enter the consumer market and the user's life from the big screen.

Digital Kingdom Chairman Zhou Yongming

Digital Kingdom's emphasis on the Chinese market was early in the acquisition of artiste Nicholas Tse's Po Hajj, and it was evident when Nicholas Tse entered the mainland market. This time it attracted Wei Ming, Pu Jian, Song Anxi, and John Lagerling to join us. Xie Anxiao, CEO and executive director of Digital Kingdom, said: "It's all about stalking." He said that in order to find the chairman Zhou Yongming, he had 14 trips from Los Angeles to Taipei. In order to find Wei Ming, it is still running around Shanghai, New York, and California.

Digital Kingdom CEO and Executive Director Xie An

For the development of the digital realm, Xie An said: “In recent years through our efforts, the Digital Kingdom has successfully transformed the traditional visual effects company into a leading international company with its unique visual effects and virtual reality technology. Successfully opened the world, especially the mainland market."

“The Greater China Region is one of the most important target markets for the digital realm. We are very pleased to invite Mr. Wei Ming as CEO of the Digital Kingdom Greater China, and to further strengthen our management team. Through Mr. Wei’s expertise and industry experience, In order to inject new impetus into our management and operations, coupled with the team's new thinking and creativity for the transformation of the digital kingdom, please wait and see.” Xie An said.

Former Youku Tudou Co-President, Digital Kingdom Executive Director, Vice Chairman of the Board and Greater China CEO Wei Ming

Subsequently, Wei Ming elaborated on the future development strategy of the digital kingdom in the Mainland. He said: "In the face of rapid development of the Chinese film and television content production market, Digital Kingdom uses the world's leading special effects technology, production process and management system, committed to the Chinese film, television drama and net content production quality and greatly enhance the quality of business health Growth Opportunities: In the field of innovations such as virtual person VH and digital avatar DA, Digital Kingdom brings high-end experience in the field of professional film to the large-scale consumer market, triggering a wider range of application scenarios and allowing more users to experience virtual human technology. The extraordinary feelings."

In his opinion, VR live integrated solutions can not only bring out the powerful capabilities of Digital Kingdom's own brand shooting system, but also establish industry-leading norms and processes to promote the further development of VR industry applications. The development of VR content and the in-depth cooperation with the platform can give full play to the digital kingdom's long-term accumulation in the special effects field, and become the industry's most important content producer.

“The digital kingdom Greater China has unlimited market potential!” Wei Ming is confident in the future of the digital realm.

In addition to the introduction of technical foreign aid, the Digital Kingdom previously introduced two strategic shareholders. In October 2016, Digital Kingdom raised approximately HK0 million in capital for China CITIC and Softbank China Capital by issuing new shares, and the two institutions also entered the company’s board of directors. At the press conference, Mr. Pu Jian, an executive director, deputy general manager and member of the executive committee of China CITIC, and Song Anxi, a partner of Softbank China Capital Management, formally served as non-executive directors of Digital Kingdom.

It is worth mentioning that, at the press conference, Digital Kingdom also released digital avatar Digital Avatar, which will be used to transform the motion capture technology that was originally applied in professional film and game production, and realize the capture and transmission of expressions in real time. Technical breakthroughs. According to reports, Digital Avatar can enable consumers to create their own custom digital avatars in the virtual world with only one consumer-grade camera through the Digital Realm's self-developed technology system. This will reduce the غير مجاز مي باشدt of technology that originally existed only in the B2B field. Used in the B2C field. In the future, Digital Avatar will be used in more scenarios, such as e-commerce and virtual social interaction.

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