How to judge the quality of the lock?
When consumers buy locks, pay attention to the following two points to determine the quality of the lock:
1. See if there is any obvious gap between the lock tongue and the lock tongue. The lock tongue mainly depends on the manufacturer's workmanship. If the gap is small, it means that the work is better; if the gap between the lock tongue and the lock tongue is large, or even obvious looseness, it means that the manufacturer is not careful, and the quality is general. When you buy a lock, you will find that the lock tongue has several different shapes. How does this affect the device and use of the lock? According to experts, each type of lock tongue has its own advantages and disadvantages. It is recommended that you buy locks that are produced according to national regulations. The larger the locking tongue, the better the anti-theft performance, the larger the opening, not only increases the construction difficulty, but also the damage to the door. In addition, the service life of the two-way retracting bolt is shorter than that of the one-way retracting bolt, but the safety is relatively high, you can choose according to actual needs. You can also examine the workmanship and quality of the lock from the following aspects. No bubbles, appearance - brighter and smoother. The better, then release, the handle - you can press the handle down. Look at the resilience of the handle. The stronger the resilience, the better the spring inside and the longer the service life.
2. You will find many materials for indoor door locks in the market, such as copper, stainless steel, aluminum, aluminum alloy, etc. Each lock company says that it is good, which one is better?
The rare materials of the interior door locks are made of copper, stainless steel, aluminum, aluminum alloy, zinc alloy and iron. The materials are different and the characteristics are different. Relatively speaking, the highest price copper lock, followed by stainless steel locks, then aluminum locks and aluminum alloy locks, again zinc alloy locks, and finally iron locks. However, each material has a lock of high, medium and low grades, so there is also a case where the aluminum lock is more expensive than the stainless steel lock. The price of locks in small markets is about 1/2 cheaper than the regular market. Experts say that it is best not to buy locks in the small market, the other party is likely to take the iron lock as a zinc alloy lock. If you want to distinguish whether it is an iron lock, you can bring a magnet. If the magnet is attached to the lock, it means iron lock.
Other businesses will use some alloy materials (such as nickel alloy) locks to pretend to be stainless steel locks. The obstacle is to take out a lock, an alloy lock and a magnet, and "cover the black curtain" and take the iron lock when the stainless steel lock is sold. It. Jiuzheng Hardware Network tells you that the real stainless steel lock, the magnet can not suck! In fact, the real stainless steel material has a strong hardness and is difficult to be cut, in addition to being not adsorbed by the magnet. The lock made of alloy is not absorbed by the magnet, but the metal shavings are cut after cutting by the cutter.