In the home renovation, the door lock is the most insignificant but most important hardware, but few people know that the seemingly unbreakable door lock actually has a shelf life. Recently, many businesses have told editors that they must buy large-brand, high-quality products when purchasing door locks, and they should be replaced after five to six years of use.
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China is the world's largest producer and consumer of locks. The lock industry has annual sales of more than 40 billion yuan and production capacity of more than 2 billion sets.
Xiao Bian went into the hardware lock area of ​​the new store, and saw the locks with the same appearance. Due to different materials and workmanship, prices ranged from a dozen to a few hundred dollars.
It is understood that the current market in the lock cylinder is divided into A-level, B-level, Super B-level and so on. "Consumers can identify how good the cylinders are by how many marbles are arranged. Generally speaking, multi-row marble locks are better than single row marble locks. Multi-row stealth marble locks are also superior to ordinary multi-row marble locks." Editor's note, the manufacturing cost of Class B lock cylinders is much higher than that of Class A lock cylinders. Therefore, most of the products introduced by lock brands in the market are Class A locks. "If there is only one row of marbles for the anti-theft door key, the basic one is the A-level lock cylinder. If you feel that it is not safe enough, you can replace it with a Class B or Super B lock cylinder to improve the overall anti-theft performance of the security door."
Material work is also very important
“In addition to the lock cylinder, the quality of hardware accessories is also critical.†Experts tell the editors that the material of the locks is generally aluminum alloy, stainless steel and copper. Among them, the strength and durability of aluminum alloys are the worst, copper is the best, but The price is also higher. "The same copper locks, each brand's workmanship and quality differences are also very large, the average consumer is difficult to distinguish." The salesman said that consumers want to buy "relaxed lock", the only way is to compare, The locks of the big brands are very delicate and workmanlike, and the work of the low-end locks will appear to be rough. In addition, the sound of the good locks is usually very crisp at the time of opening, and the low-end locks will appear loose when the keys are inserted, and the sounds are mostly boring when the locks are opened.
Every five years, the door locks have to change their mind.
"The general lock has a long service life, the lock cylinder will naturally wear out, it is easy to open the key with a similar tooth shape." The head of a key unlocking the key near the newspaper said that after using an ordinary door lock for five or six years, it must be Replace the lock cylinder.
Many residential security doors and door locks are purchased and installed by real estate developers, and most of them are not particularly good quality locks. “The same type of door locks are used in large numbers in the same community, and in theory, the chance of 'locking a few doors' increases. Many newcomers in the community report that they often have the wrong unit. , Open the door and found that it is not the case of their own home.†If you do not replace the lock cylinder for a long time, there will be more serious security risks.
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