Pay attention to the suitability of choosing ppe

First, the repair tool multimeter two (analogue and digital one, analog type must be missing), diagonal pliers, needle nose pliers, iron, iron frame. Flux, tin wire, suction solder, fine sandpaper, heat-shrinkable tube, stripping pliers, slotted screwdriver (one small and medium size), Phillips screwdriver (one small and one each, plus a rubber handle screwdriver), artwork Knife.

Second, the circuit works 1, the process input (protector, micro switch) → rectifier → filter → positive and negative switch → motor → clutch 2, the normal parameters of all electronic components (1), power cord: DC resistance value, normal Values ​​approach zero; common faults: open circuit or poor contact (broken).

(2) Micro-switch: Measure the resistance value between normally open (resistance approaches infinity) and normally closed (resistance approaches zero); common fault: bad contact (black burn), key cannot be reset normally, body rupture.

(3) Protector: Measure the resistance value; Normal is zero; After slight overloading, it can reset automatically, if it is too large, it will permanently fail. In case of high temperature, it can also be disconnected (thermal protector), and it can be automatically reset after normal temperature.

(4) Rectifier bridge: Short-circuit the output (+, -) and measure the output resistance (+, -) DC resistance (about 15K).

(5) Positive and negative switches: The corresponding pin of the toggle button is a common pin, and the corresponding two buttons of the toggle button are connected.

Third, the circuit detection analysis When you get a failure of the electrical batch is unknown, it should be a preliminary test, as follows:

Set the multimeter to (×1K) zero, turn on (press) the micro switch and measure the DC resistance of the input terminal. In the positive case, it is about 15K (the digital multimeter adjusts to the measuring diode and the voltage drop is 1. 0 Left and right), this value can indicate that the electric batch circuit part works normally. Another method of testing the circuit is to short the motor pole after opening the electric batch. Under normal circumstances, the measured input DC resistance is slightly lower than the initial measurement. The maximum value (motor DC resistance is not included in the calculation).

Fourth, the motor components 1, the basic components: armature (rotor), carbon brush holder, motor front cover, bearings, magnets (stator), carbon brushes, motor pads.

(1) Armature: The most important part of an electric batch, like the "heart," the state of the armature will determine whether the electric batch can work properly. Armature is good or bad: We can learn by measuring its DC resistance. Under normal circumstances, the DC resistance (220V) between adjacent two poles of the armature commutator is about 15 ohms (depending on the manufacturer, the value is different, and the larger DC resistance is more than 20 ohms).

Damage characteristics and failure analysis: A, judging from the appearance of whether the commutator of the armature has obvious wear, and the armature with more serious wear and tear has large noise during operation: B. See if the central axis of the armature becomes smaller (Install the bearing Afterwards, when the bearing is able to rock to the right and left, the armature rotation center is unstable and the noise is large. C. There are many armature that cannot work properly because the commutator is open to two adjacent poles. When there are multiple disconnections, the motor will not start; the motor will work when one is disconnected, but the motor will stop working if the carbon brush is touching the disconnected position.

(2) Carbon brush holder: It is judged from the appearance that it is damaged and the internal carbonization (burning black).

(3) Motor front cover: It is judged from the appearance that it is damaged.

(4) Stator: Judging from the appearance to determine whether the internal disk is damaged or shifting (causing magnetic asymmetry), it is also possible to put a screwdriver into the magnet to check the magnetic size. When the magneticity is too small, it should be replaced. New magnet.

(5) Bearings: Judging from the rotating bearings, there is a stuck phenomenon. When the internal friction is strong, the motor noise is louder.

(6) Carbon brush: When the carbon brush wears to the remaining two or three millimeters, replace it with a new carbon brush (regular replacement).

(7) Gaskets: Fixed armature to prevent shaking up and down and ensure stability. The number of suitable washers; the armature will not shake up and down, and the armature can be twisted with a small force.

Fifth, the clutch 1, clutch common fault: (1). Unable to hold the screwdriver head: A drive shaft is bad, replace the drive shaft (groove becomes large, automatically fall off); (2). Missing, make up new.

2. Damage to the drive shaft: (1). The head of the driver is seriously worn on the outside and needs to be replaced; (2). Internal breakage (test method is to put the vane into the clutch, and then stuck it, use a screwdriver to twist the drive shaft, determine the sense of tripping, and determine its good or bad.)

Radiator Valves

Radiator Valves,Nickel Plated Valve,Brass Radiator Valve

M Profile Press Fittings Co., Ltd. , http://www.nspipefitting.com

After spending a hot summer, next fall is very refreshing, and cool early autumn is very exciting, the same can not be missed are colored five plans women about to double store celebration of the good news, warm congratulations Jiaozhou, Shandong, Jiujiang, Jiangxi Province is about to usher in a five-color five women's clothing store grand opening, will take you in advance to enjoy the autumn 2016 women's style, the current renovation of the NEW store is hot, so stay tuned.

Shandong Jiaozhou customer contract

In the late summer and early autumn, the crush in the closet in the autumn a single product also can not wait to get ready, a variety of colored dresses, pants and a small jacket to wear and so on, choose your favorite Style, this fall brings a different fashion and elegance, five colors five women's styles and more, the new fast, and the quality is guaranteed, at any time to buy can be loaded with Oh!

Jiujiang, Jiangxi customer agreement

Here, I congratulate the successful signing of the brand and franchisees, and I wish the two franchisees opened a new store, business is booming, extra cash!

Bathroom Accessary

Freestanding Bathtub Shower Door Co., Ltd. , http://www.chabathtub.com

Doll clothing company has a senior team of design and development professionals and dozens of human health, physical education, engineering, flow and Other expert consultants, according to the oriental girl's body features, color, aesthetics, and even climate considerations, research and development design A series of health patent lingerie suitable for Chinese and Asian teenage girls mainly researches, manufactures and sells girls bras, underpants, pajamas and slings, and has developed doll apparel for girls.

Girls pursuit of unrestrained life, beauty is every girl's heart. Give the child a beautiful start, beautiful stature, but should start from the details. Doll girl lingerie delicate every detail, so beautiful regardless of inside and outside, regardless of age.

Bathroom Cabinet

Freestanding Bathtub Shower Door Co., Ltd. , http://www.chabathtub.com

With the arrival of July, so that the children long-awaited day has come, and also the MARALOCA worth happy occasion to warmly congratulate MARLOCA Man carbs and Shandong Dezhou Miss Lu successfully signed!

$1$

Clothing brings beautiful changes to women. Flowers, on the other hand, will make their minds more like traveling, becoming the inspiration for enriching the spiritual world and creating a passion for life, allowing women to express their beauty from the heart!

MARLOCA Man Lu card for the transformation of urban life clothing to provide a vibrant inspiration for women to walk with confidence. In their own way, mix and match different elements!

Now MARLOCA Man Luka will expand to more central cities, so that more beauty-conscious women in the hectic life, intentions feel the soul of travel in the infinite comfort and comfort!

Hammer Texture Powder Coating

Metallic Powder Coating Co., Ltd. , http://www.nsralcolour.com

good news! Very good news!

Congratulations TNOLANBELL Nolan Bell 2018 spring new conference and order will be a complete success!

As a high-end women 's wear brand , NOLANBELL Noblebeer accurately cater to the pursuit of fashion women aged 28-40, highlighting the charm of youth, advocating personalized wear needs, products synchronized with the latest information and design concepts in Europe and South Korea, Simple and smooth lines, decent decoration, elegant colors, giving a sense of elegance and relaxed comfort. With the brand style of "quality in the Zhang Zhang temperament, elegant and yet stylish" as well as the "intellectual, fashion, elegant" brand positioning, so busy urban women are more stylish, elegant, more confident, more feminine charm!

$1$

NOLANBELL 2018 series of fashion will be based on mature femininity and understanding of women in-depth understanding of the high quality fabrics, precise cutting, strong sense of the unique color lines and exquisite hand details throughout the product line

The Multiple Possibilities of Exquisite Craft and Innovation Are Sublimation Brands Instead of Simple Transformation of Their History Endless Exploration Spirit Will Be Embraced by All Kinds of Products A Kind of Humanistic Narrative is about to Be Launched It is full of character without losing Universal connotation

TNOLANBELL2018 spring new conference has been perfect ending,
But more exciting in the future

Looking forward to seeing you!

Luminous Powder Coating

Metallic Powder Coating Co., Ltd. , http://www.nsralcolour.com

The management of whirlpool fan noise uses a soundproof cover to cover the high pressure blower and isolate it from the operator. This is an effective noise control method and can completely reduce the operating site noise to the allowable level.

The soundproof cover is mainly composed of a plate, a sound-absorbing material, a damping layer, and the like. The shell can be made of steel plates, hard aluminum plates and other denser plates. When the shell is made of thin steel plate, a layer of soft rubber or a layer of damping paint must be tightly adhered to the steel plate. The thickness of the damping coating should be greater than 2-3 times the thickness of the steel plate in order to suppress the vibration of the steel plate surface.

The inner wall of the soundproof sheet shall be lined with a 30-50mm thick sound-absorbing material, and the commonly used sound-absorbing materials are ultra-fine glass wool, porous foam or slag wool. In order to avoid the scattering of sound-absorbing material, a glass cloth may be covered outside the sound-absorbing material, and then a metal mesh or a perforated steel plate may be used as a protective layer. The aperture of the perforated steel plate is often taken as 3 mm, and the perforation rate is often taken as 20 to 30 percent. Finally, a metal bead or wire is attached to the wall.

The whirlpool fans and other equipment usually require heat dissipation. For this purpose, ventilation openings and air ducts are required for the cover. The inner wall of the air duct is usually made of polyurethane foam, and an air intake muffler is installed at the junction of the air duct and the cover to reduce the airflow for cooling and ventilation. Generated aerodynamic noise. And it is required that the muffler's noise reduction volume be similar to that of the sound insulation cover.

Acoustic enclosures require sealing, and lax seals will greatly reduce the effectiveness of sound insulation. Therefore, attention must be paid to the treatment of holes and gaps. When the mask wall has 1/100 area of ​​small holes, the sound insulation of the sound insulation cover will not exceed 20dB, and the gap of 2~3mm in length and 1m in length can also pass 10dB. Therefore, the holes and gaps must be filled with soft rubber. When the cover plate on the cover wall is closed, the compression mechanism must be used to fasten the compaction. When the pipe passes through the cover wall, it needs to be wrapped with a sounding sleeve. In general, the doors, observation windows, vents, and sound insulation sleeves on soundproof covers are all weak links. Measures should be taken to reduce the sound insulation volume so as not to affect the overall sound insulation effect.

The vibrations of the whirlpool fans and other equipment and their foundations must not be transmitted to the sound insulation layer. Rigid connections should be avoided as much as possible. Where the genus is at the junction and the crest support, an elastic material liner should be used. Also, the connection between the cover body and the air duct should be connected with a canvas or a serpentine pipe. The length of the connection part is generally 100 to 200 mm.

For ease of maintenance, the soundproof enclosure can be assembled from several components, that is, made into a movable type. When installing, pay attention to the elastic material between the joints of various parts, and use special components to clamp tightly to close the seal tightly.

2. Using sound barriers to control noise Applying sound barriers to reduce fan noise is to place the sound barrier between the fan unit and the operator. Its role in reducing noise is based on the principle of sound wave propagation (winding). In the noise propagation path, the acoustic wave is blocked by the barrier and diffracts at the edge of the barrier, thereby forming an acoustic shadow area behind the barrier, and the noise is reduced in this acoustic shadow area. The application of sound barriers reduces noise and does not require a hood or other enclosure to close the fan.

Sound barriers are easy to prepare and easy to install, which is a significant advantage. The sound barrier should be made into a unit type, the plane of which can be in the form of a plate shape, an L-shape, etc. The shape of the cross-section should be “concealer type” to provide the diffraction coefficient. Its structure is simple. Cold-formed thin-walled steel is used as the skeleton. A 0.8-1.50-mm thin steel plate is sandwiched between the two sides as a sound-insulating layer. The steel sheets on both sides of the steel plate are lined with 50-100mm ultra-fine glass wool as the sound-absorbing layer. The outer layer is clamped with a thin steel mesh. The width of the sound barrier should be slightly larger than the length of the fan unit under control. Each unit should be made of 0.6m, 0.8m or 1.0m, and it should be spliced ​​when installed. The seams between the unit bodies are connected by rubber sealing strips, and the bottom is fixed on the floor lined with latex sponge plastic layer by the steel bolts at the bottom.

If the conditions permit, the upper part of the building where the high-pressure fan unit is located, the floating cloud-type sound-absorbing board and the vertical sound-absorbing board will be set accordingly, and the noise control effect will be further improved. Application of sound barriers to control fan unit noise can generally be reduced 8? 12dB.

FDA Approved - food grade baking paint

Metallic Powder Coating Co., Ltd. , http://www.nsralcolour.com

What color is suitable for red? Red should be the more dazzling colors of spring and summer, but Xiao Bian think if you wear red, sure to look at the color, the skin is really not suitable for people who wear black black, red people feel black, so the skin white The girl is more suitable to wear red, but Xiaobian is not believe, so come and look.

If the color is black and yellow girl we can change the red wear pants, red shorts with a checked chiffon shirt, this check chiffon shirt is black and white, white mostly appear more fresh, and then Coupled with red shorts, shorts do not be too self-cultivation, the Korean version of the comparison is thin Oh.

For their more confident girl's skin, you can choose red chiffon shirt, red clothing may feel too glazed, the skin appears black, so the skin white girl can try it, coupled with black shorts, simple and elegant, suitable for small fresh Girls are also suitable for professional women wear Oh, certainly very dazzling.

CNC Machine Parts

CNC Machine Parts，OEM CNC Machined Parts，OEM CNC Machined Parts

3D Printing Prototype Co., Ltd. , http://www.nsrapidprototype.com

No matter what the last night experienced cry weep, wake up in the morning the city is still busy. Happy or not happy, the city has no time, you can only remember or forgotten, that stop you loved or hate the journey, that section of you Hard work but can not feel the hope of the day will pass. "This morning I saw a girl in Weibo some words, a little touched.

In this fast-paced society, we all have their own difficult, especially into the workplace of the girls, from the pressure of life and work, people breathless, but they have to continue, so to learn to adjust and timely to their own A little reward, can be a big meal, can be a holiday, it can be a long-awaited clothes. Let's take a look at Xiao Bian recommended two clothing it.

The recent hot doll is not only a must for young girls, but also the love of OL. Because of its youth, because it is not too picky body, but also because it helps the girls cover the waist, belly fat and thick legs full of beautiful body.

Simple and elegant pure white doll shirt, regardless of weight can be easily manipulated, walking in the street are all chic style. Improve the waist line so that the legs look more slender, Puff Sleeve design or small Lu Xiang Shoulder design, feminine, enjoy the flying clothes pendulum, filling the elegant temperament; In fact, as long as the mix, OL who can wear the same Office, still young publicity.

Photo credit: Pyrene 筃 Women's clothing

Permanent Castings

Casting Wheel,Casting Sleeve,Housing Box

Chuang Hong Mei Metal Products Co., Ltd. , http://www.tzcastingmfg.com

Thirty years old, although not as vigorous as before, but as long as carefully dressed or a tender flower. Young is capital is no longer a classic term, after all, we all know that a woman's beauty is hierarchical, some people can confuse the boundaries of time, but some people are willing to time and release new beautiful Is it not a good thing to be a light-hearted woman?

This bib without age reduction nor romantic, but extremely elegant, this is also the first step to be a light Mature. Time is also for you a temperament of growth, so that the femininity of you so thickening. So you want to go lady style, then now such a set must not be missed, do not be afraid of their own can not control.

Army green suit, style or version also looks very high-end, but also particularly significant and mature wind. A small belt on the clothes, for you also brought a lot of femininity, while the trumpet-type trumpet so that your legs can be modified more perfect. Do you like this suit?

Mature, then come Wuhan goods it!

Water Pump

Submersible Pump,Vacuum Pump,Air Pump

Chuang Hong Mei Metal Products Co., Ltd. , http://www.tzcastingmfg.com

In recent years, the development of the security industry has become more and more mature, industry competition has become more and more fierce, the homogeneity of products in the industry is serious, and the price difference is also very large, so this also accelerates the upgrading of product functions as a security company manufacturer. With the development of Internet technology, the use of Internet technology in the parking lot management system is becoming more and more common in the market.

Under the development of Internet technology, how manufacturers of parking management systems follow the trend, how to get rid of the competition within the industry, so that their products are recognized in the market by more people, in order to become the leading enterprise in security companies is the enterprise To seek development problems that need to be solved. With these issues in mind, we conducted a survey of the car park systems at various sites currently in use, and found that the card parking lot systems in the districts, unit entrances, commercial plazas, airports, and logistics parks in various cities across the country have been upgraded. At the stage, the parking lot management side recognized the management mode of the license plate recognition parking system. Through the investigation, it is found that in the current situation of serious parking difficulties, vehicle owners in order to save parking time, they will choose to quickly pass the license plate recognition management method at the time of parking, at the same time, the license plate recognition parking system through Internet transmission technology, can The captured vehicle information is uploaded to the database and is used to keep a safe record of the parking of the vehicle.

As the parking problem becomes more and more serious, the parking industry, as an important part of the development of the security field and smart cities, will only continue to expand product features, making it easier and more convenient for people to park, and making parking management more worry-free. Management system manufacturer's development direction.

For more information on the functions of the parking management system, parking lot collection system, parking lot barrier, access gate system, cloud parking lot, etc., please contact Shenzhen Daoer Intelligent Control Technology Co., Ltd., China Smart Parking Cloud Platform No. 1 Shares, parking operator preferred partner.

Assemble Parts

Valve Parts,Chromeplate Valve Part,Chromeplate Parts

Chuang Hong Mei Metal Products Co., Ltd. , http://www.tzcastingmfg.com