Why do you need to change the lock when the door lock is used for a long time?
"The general lock has a long service life, and the lock cylinder will naturally wear out. It is easy to be opened by a key with a similar tooth shape." The master who unlocked the key said that the lock must be replaced once after five or six years of use. core. The general lock has a long service life, and the lock cylinder will naturally wear out, and it is easy to be opened by a tooth with a similar tooth shape. If the lock cylinder is not replaced for a long time, it will cause more serious safety hazards. It is very likely that a lock will open several doors. Therefore, the hardware door lock must ensure the quality of the accessories and avoid unnecessary trouble.
The material of the door lock is distinguished:
“In addition to the lock core, the quality of the hardware is also very important.” The material of the lock is generally aluminum alloy, stainless steel and copper. Among them, the strength and durability of the aluminum alloy is the worst, the best copper, but the price is also higher. . “The same is a copper lock. The difference in workmanship and quality of each brand is also very large. It is difficult for ordinary consumers to distinguish.” The only way for consumers to buy “safe locks” is to compare and lock the big brands. Weiyuan door and window hardware) workmanship is very fine, tightly stitched, the work of low-end locks will appear rough.
Through the above, everyone should have a certain understanding of the shelf life of the lock cylinder of the door lock. In addition, I would like to tell you a little trick. When the lock is turned on, the sound is mostly crisp. The low-end lock will appear loose when the key is inserted. The sound is mostly dull when it is turned on.