There are a large number of domestic lock brands, with no fewer than thousands of various brands, and the homogeneity of lock quality is serious. You can consider these aspects when choosing a door lock.

1. Look at the lock material

Generally speaking, its materials include stainless steel, copper, aluminum alloy, etc. Locks made of different materials have different advantages and disadvantages. For example, stainless steel locks have high strength, strong corrosion resistance, and do not discolor, but their forging performance is not good, and their styles and colors are relatively single; copper materials have superior mechanical properties and are generally used to make European-style high-end door locks, with relatively high prices and grades. ; Zinc alloy has strong wear resistance, corrosion resistance and other properties, and is relatively easy to cast, with various styles and patterns.

2. Look at the surface treatment of the lock

Generally speaking, its surface treatment process can be divided into three types: electroplating, spraying and coloring. This surface treatment is equivalent to a layer of protection. The film not only plays a decorative role, but also a protective role. It can play an anti-corrosion and anti-rust role, making the lock more beautiful and durable, and having a longer service life. Locks with good quality mostly use electroplating process. The coating is fine, smooth, uniform and moderate, with bright color and no bubbles, rust and oxidation signs.

3. Look at the door lock keys

As we all know, there are many types of keys, and the door lock keys of each home are also different. The most common ones we have are one-word keys, Cross key, cylindrical key and other types. Ordinary one-key and cross-key door locks are relatively cheap, but have poor anti-theft performance and are classified as Class A door locks. The manufacturing process of Class B and Class C door locks is relatively high, and the key patterns are also more complex. The less chance of successful counterfeiting, the better the anti-theft performance.

4. Look at the details of the door lock

In addition, we can identify its quality from some details. For example, door locks with outstanding quality are heavier in type and feel heavier in the hand. , flexible rotation when opening and closing. When we buy a door lock, we should also pay attention to the fact that the lock body cannot have its tip exposed, which can easily hurt people. We should pay special attention to the end of the lock handle, the lock tongue and the four corners of the lock body, so that we can use it more smoothly and comfortably. .