Lock hardware casting
Guangdong alloy steel castingA lock refers to a device that has a closing function. It includes locks, keys and their accessories. It is generally interpreted as "a sealer that must be opened with a key". Now, in addition to being opened with a key, a lock can also be opened with light, electricity, Commands such as magnetism, sound and fingerprint are turned on. Locks are not only protective equipment, but also have the functions of "management" and "decoration". There is also a kind of etiquette in international communication, using the gift of symbolic "keys" as a sign of friendship.
There are basically two types of lock materials, one is wooden lock and the other is metal lock. The production of wooden locks must go through technological processes such as sawing and cutting, axe splitting, gouging and drilling, and planing and drilling. Metal locks need to be smelted, gold, silver, copper and iron, billet casting, cutting and cutting, welding and riveting, drilling and drilling, filing and polishing. From the raw material to the production of a lock, I don’t know how much it takes locksmiths to work hard!
When people choose locks, they are generally worried that the locks are not durable or the surface will rust or oxidize soon after use. This problem is related to the materials used and surface treatment.
From the standpoint of durability, the best material should beGuangdong Stainless Steel CastingStainless steel, especially used as a surface material, becomes brighter as it is used. It has good strength, strong corrosion resistance and unchanged color. However, there are many types of stainless steel, mainly divided into ferrite and austenite. Ferritic stainless steel is magnetic, commonly known as stainless iron. It will rust for a long time and in a bad environment. Only austenitic stainless steel will not rust. The identification method is very simple. You can identify it with a magnet.
Copper is one of the most widely used lock materials. It has good mechanical properties, good corrosion resistance and processing properties, and has a bright color. Especially forged copper handles and other lock decoration parts, the surface is flat, good density, no air holes, Trachoma. It is strong and rust-proof, and can be used to plate 24K gold or placer gold and other surface treatments. It looks magnificent, noble and generous, and adds a lot of color to people's homes.
Zinc alloy materials are much worse in strength and anti-rust ability, but its advantage is that it is easy to make parts with complex patterns, especially pressure casting. The locks with more complicated patterns seen in the market are most likely to be made of zinc alloy, and consumers must carefully identify them.
Steel has good strength and low cost, but it is easy to rust. It is generally used as a material for the internal structure of locks and is not suitable for external decoration.
Guangdong carbon steel castingAluminum or aluminum alloy, ordinary aluminum alloy (except for aerospace use) is soft and light, and the material strength is lower, but it is easy to process and shape.
