There Are Four Ways To Choose A Good Door Lock

First, look at the lock material
The locks on the market are basically divided into several materials such as stainless steel, copper, zinc alloy, aluminum alloy and iron. Each of these materials has its own advantages and disadvantages.
Stainless steel has high strength, strong corrosion resistance, and does not change color, which is a good lock-making material, but the forging performance is not good, and the style and color of stainless steel door locks are relatively simple. The copper material has good mechanical properties, and is generally used to make European-style high-grade door locks, and the price and grade are relatively high. Zinc alloy has strong wear-resistant, corrosion-resistant and other properties, is relatively easy to cast, can design many styles and patterns, and many of the better locks sold on the market are made of zinc alloy. The ratio and raw materials of zinc alloy are different, and the design process and casting process are different, resulting in a large price difference. Aluminum alloy and iron applications are relatively rare, aluminum alloy is mainly space aluminum, this kind of door lock design is generally relatively simple, no pattern design, iron door locks are now less and less, basically belong to low-end door locks. There are many types of locks, different materials and grades of door locks, it depends on your budget and style, choose a big brand, and the brand and quality are more guaranteed.
Second, look at the surface treatment of the lock
The surface treatment of locks is roughly divided into three types: electroplating, spraying and coloring, and the locks form a dense protective film on the surface of the product through surface treatment, which plays the role of anti-corrosion and anti-rust, making the locks more beautiful and durable. Dense protective film is also a measure of the quality of the lock, good quality locks, mostly electroplating treatment, the coating is delicate and smooth, uniform and moderate, bright color, no bubbles, rust and oxidation signs. For example, the products of Tiannu Hardware are all subjected to layer electroplating process and polishing process, 48 hours of medium salt spray test or 200 hours of low salt spray test, so that the surface of the product will not be spotted and oxidized and rusted on it due to use and the passage of time.
3. Look at the key
There are many types of keys, which are generally divided into word keys (ordinary keys and angle keys), cross keys, computer keys,
Cylindrical keys, etc., the door lock key of different key configurations is not the same, and the price of the ordinary word key and the door lock configuration of the cross key is relatively cheap, but the anti-theft performance is relatively poor, which is a good door lock. Due to the low anti-theft performance, the public security department publicizes the use of grade B and C, the manufacturing process of these two types of door locks is relatively high, the more complex the pattern of the key, the smaller the probability of success of imitation, some brands such as Tiannu hardware luxury door locks have a good password card, if the new key must rely on the password card to the designated professional organization to match the key, greatly improving the anti-theft performance.
Fourth, look at the implementation standards of locks
Foreign countries have very strict standards and regulations for hardware locks, so the quality of the products is relatively high. We can feel the quality of the lock with our hands. Generally speaking, locks that feel heavy are of relatively high quality; The lock body can not show the tip, the tip is easy to hurt people, should pay attention to the lock handle end, the lock tongue and the four corners of the lock body three positions;
The locks with good locks are flexible to open, have high sensitivity and long service life. There are also many styles of locks, so be sure to keep them in line with the style of the interior doors.