Pay attention to the suitability of choosing ppe

On the market, hardware locks are categorized in various categories, and the processing technology is diverse. The specifications are not the same. How to pick a hardware lock on the door? The following explains how to select a hardware lock.

First, look at the lock material market, the lock material is basically divided into stainless steel, copper, zinc alloy. Stainless steel has high strength, strong corrosion resistance and no discoloration. It is the best material for making locks; copper is more general, mechanical properties are superior, and the price is higher; locks are high-quality zinc alloys strong wear-resistant, strong corrosion resistance, and easy molding. Mostly used for mid-range locks.

Second, see the lock surface treatment Surface treatment is roughly divided into three kinds of electroplating, spraying and coloring, the lock through the surface treatment to form a layer of dense protective film on the surface of the product, play a role in anti-corrosion and rust, so that the lock is more beautiful and durable. The dense protective film is also a measure of the quality of locks. Good quality locks are mostly plated. The coating is delicate, smooth, even and moderate, bright in color, free of bubbles, signs of rust and oxidation.

Third, to see the implementation of standards for locks abroad Hardware locks have very strict standards, so the quality of imported products is relatively high. We can feel the good or bad of our locks. In general, the feeling of heavy locks, the quality is relatively high; the lock body can not be exposed, the exposed point is easy to hurt, in particular, should pay attention to the lock handle end of the lock, the lock tongue and the lock body four positions; lock spring good locks Flexible opening, high sensitivity and long service life. Locks also have a variety of styles, and must be consistent with the style of the interior doors.