[China Aluminum Industry Network] On the field hardware lock material classification is complex, the processing technology is diverse, and the specification standard is not the same, then how to select the hardware lock on the door, small make up a number of hardware manuals, which are detailed for how to choose the hardware locks instruction of.
A look at the lock material on the market basically divided into stainless steel, copper, zinc alloy. Stainless steel with high strength, strong corrosion resistance, no discoloration, is made lock material; copper is more general, superior mechanical properties, high prices; locks high quality zinc alloy strong wear, corrosion resistance, and easy molding, used in mid-range lock.
Second, look at the surface treatment of the lock surface can be divided into electroplating, spraying and coloring. The surface of the lock is used to form a layer of dense protective film on the surface of the product, which can play a role in anti-corrosion and anti-rust, making the lock 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 and smooth, even and moderate, bright in color, free of bubbles, signs of rust and oxidation.
Three look at the implementation of standards for foreign 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, 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.
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