At present, the locks on the market are complex and diverse, and the processing techniques are also different. Although the locks have many styles, they are generally similar. For everyone to sort out some things to pay attention to when buying hardware locks, I hope to have some help for everyone to choose the lock!
First, the unlocking material
The lock material on the market is basically divided into stainless steel, copper and zinc alloy. Stainless steel has high strength, strong corrosion resistance and no discoloration. It is the best material for locking. Copper is more versatile, with superior mechanical properties and higher prices. The lock high-quality zinc alloy is strong and wear-resistant, has strong corrosion resistance, and is easy to form. It is mostly used for mid-range locks.
Second, observe the surface treatment of the lock
The surface treatment is roughly divided into electroplating, spraying and coloring. The locks form a dense protective film on the surface of the product through surface treatment, which acts as anti-corrosion and anti-rust, making the lock more beautiful and durable. The dense protective film is also a standard for measuring the quality of locks. The locks of good quality are mostly plated, the coating is fine and smooth, even and moderate, the color is bright, and there are no signs of bubbles, rust and oxidation.
Third, pay attention to the lock implementation standards
Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high. We can feel the quality of the locks. Generally speaking, the heavy locks are of relatively high quality. The lock body can not be pointed, and the tip is easy to injure people. In particular, attention should be paid to the lock handle end, the lock tongue and the four corners of the lock body. The lock spring has a flexible opening, high sensitivity and long service life. There are also many styles of locks, so be sure to keep in mind the style of the interior doors.