Every home has a door, and every door has a matching lock. A matching lock can make the function of the door more perfect and has the effect of finishing touch. But if a door does not have a lock, then security cannot be guaranteed. It can be an indispensable part of the door. As for the door lock, it can be divided into door seam lock, passage lock, bathroom lock, etc. according to its use, and spherical lock, handle lock, inserted core lock, etc. according to its shape. It can be divided into door lock, bedroom lock, passage lock, bathroom lock, etc. according to its use; ball lock, handle lock, insert core lock, dead lock, etc. according to its shape. Ball lock and handle lock have three functions: lock, handle and touch. For the dead lock, the door handle shall be installed additionally.
This requires a good door with a good lock, what kind of door with what kind of lock, but do you know how to choose a good lock? Now in the market, there are many kinds of hardware locks, with high style similarity, which makes many ordinary consumers very headache. So how to choose a good door hardware lock? Lock expert Fu Shili has come to help you. It's very important to master the following four aspects.
I. lock materials
The locks on the market are basically divided into stainless steel, copper, zinc alloy, aluminum alloy, iron and other materials. Each of these materials has its own advantages and disadvantages.
Stainless steel has high strength, strong corrosion resistance and no discoloration. It is the best lock material, but its forging performance is not good. The style and color of stainless steel door lock are relatively single. Copper material has superior mechanical properties. It is generally used to make European style high-grade door locks with high price and grade. Zinc alloy has strong wear-resistant, corrosion-resistant properties, and is easy to cast. It can design many styles and patterns. At present, many of the hot-selling locks on the market are made of zinc alloy. However, due to the different ratio and raw materials of zinc alloy, and the different design process and casting process, the price difference is very large. Aluminum alloy and iron are rarely used. Aluminum alloy is mainly space aluminum. The door lock design of this kind is generally simple, without pattern design. Iron door locks are less and less now, basically belong to low-end door locks. There are many kinds of locks. There are locks of different materials and grades, mainly depending on your own budget and style, choosing a big brand and ensuring the brand and quality.
II. Surface treatment of lock
The surface treatment of locks can be roughly divided into electroplating, spraying and coloring. The locks form a dense protective film on the product surface through surface treatment, which plays the role of anti-corrosion and rust prevention, making the locks more beautiful and durable. The dense protective film is also the standard to measure the quality of locks. The locks with good quality are mostly electroplated. The coating is fine and smooth, even and moderate, bright in color, without bubble, rust and oxidation. For example, the products of TINO hardware are all subject to plating process and polishing process, 48 hours of moderate salt spray test or 200 hours of low salt spray test, to ensure that the product surface will not be speckled and oxidized due to use and time passing.
III. look at the key
There are many kinds of keys, generally divided into one character keys (ordinary keys and angle keys), cross keys, computer keys,
Cylinder key and so on. The door lock keys of different key configurations are different. The price of ordinary one letter key and cross key configuration is relatively cheap, but the anti-theft performance is relatively poor, belonging to class a door lock. Due to the low anti-theft performance, the public security department vigorously publicized the use of grade B and grade C. the manufacturing process of these two types of door locks is relatively high. The more complex the pattern of the key, the less chance of the success of the imitation. Some brands, such as the luxury door lock of tiannu hardware, have a unique password card. If a new key is equipped, it can only be equipped with the key by virtue of the password card to a designated professional organization. Large Greatly improved the anti-theft performance.
IV. see the implementation standard of locks
Foreign countries have very strict standards and regulations on hardware locks, so the quality of imported products is relatively high. We can feel the lock with our hands. Generally speaking, the locks with heavy feel are of relatively high quality; the lock body can not be exposed, which is easy to hurt people, especially the lock handle end, lock tongue and four corners of the lock body.
The lock with good locking spring has the advantages of flexible opening, high sensitivity and long service life. There are also many styles of locks, so we must pay attention to keep consistent with the style of interior doors.