Precautions for the purchase of locks?
1. Look at the surface treatment of the lock
Surface treatment can be roughly divided into three types: electroplating, spraying and coloring. The lock forms a dense protective film on the surface of the product through surface treatment, which plays a role of anti-corrosion and rust prevention, making the lock more beautiful and durable. Dense protective film is also a measure of the quality of locks. For high-quality locks, electroplating is mostly used in the ultra-normal lock industry. The coating is fine and smooth, uniform and moderate, bright in color, and free of bubbles, rust and signs of oxidation.
2. Look at the lock material
The lock materials on the market are basically divided into stainless steel, copper, and zinc alloy. Extraordinary lock stainless steel has high strength, strong corrosion resistance, and does not change color. It is a good lock material; copper is more versatile, has superior mechanical properties and higher prices; high-quality zinc alloy locks are strong and wear-resistant, and have strong corrosion resistance. Easy to shape, mostly used for mid-range locks.
3. Look at the lock implementation standard
We can feel the quality of the lock by hand. Generally speaking, locks that feel heavy and heavy are of relatively high quality; the lock body should not be exposed to the tip, which can easily hurt people. Pay particular attention to the three positions of the lock handle end, the bolt and the four corners of the lock body; the lock with a good lock spring Flexible opening, high sensitivity, and long service life. There are also many styles of super lock locks, so you must pay attention to keeping the style of the interior door consistent.
