Technical Articles

Here are some the required things in the process of lock polishing: (1) Nitrate: serves for passivating and polishing. It directly affects the polishing speed and quality. When the concentration and reaction speed is low, the surface gloss will be poor and deposit thick stuffs on the pan after polishing. When the concentration is too low, dotted erosion will appear on the surface after polishing.   (2) Phosphorus: in addition to dissolve the thick liquid metal oxides, it can also dissolve metal...

The lock users may find that the dead lock phenomenon sometimes occurs, but it doesn't happen in the use of carbon steel set. Is it because stainless steel is relatively soft, while the carbon set is relatively hard? That's right! That is the real difference between stainless steel and carbon steel. Stainless steel has good ductility, but its hardness is not as good as carbon steel. However, it is partly right. Dead lock often occurs in the stainless steel, aluminum alloy and titanium...

Most people have no idea that lock needs to be maintained. Generally, when the lock doesn't work out, they choose to change a new one. In fact, the service life of locks can be greatly extended under proper maintenance. Then you will learn some lock maintenance knowledge.   Firstly, people nowadays usually do things decisively, straightforwardly, tending to ignore some small details in life, for example, after opening the door, most people will push it into the door frame, making them each...

According to different standards, locks can be divided into different types.　 First, according to the types of lock:　 1. Padlock: divided into copper padlock, iron padlock and password padlock. Its main specifications are 15, 20, 25, 30, 40, 50, 60 and 75 mm. 2. Drawer lock: divided into all-copper drawer lock, copper-covered drawer lock, aluminum conductor drawer lock and cabinet lock. Its main specifications are 22.5mm and 16mm. 3. Billiard lock: divided into single-safety lock, double-safety...

When choosing lockset, people are often worried about that locks are not durable or soon rust and oxidize on the surface. This problem can directly influence the materials and surface treatment. Now let's introduce different lock materials from different perspectives.   From the perspective of the durability: 1. the best material should be stainless steel, which become more and more shining especially when used as the surface material. It has very good strength, strong corrosion resistance,...

This technical article introduces some general knowledge of door locks, including its category, selection matters and install methods. Categories 1. Anti-theft lock. Exterior entry door is the divide of home and outdoor. It must have the function of insurance and security. The door is usually consisted of two: iron gate and door (usually a wood door). As for iron gate, it should be locked from both sides, which is called double-end lock. It should be noticed that the distance between the two doors...

Reasons for hardware breakdown: Incorrect hardware accessories, which brings to poor quality; there is no metal plate at the fastening, which results in poor installation strength. General hardware damages are: insecure hardware fittings fixation, mobility, the damage of pulley and friction hinge, and opening and closing is not flexible.   Measures to prevent the damage: The model, specification and performance of selected hardware accessories should comply with state current standards and...

There are many classifications, complex hardware locks materials and processing technologies in the market and different standards or specifications, the following gives a simple instructions about how to choose the hardware locks. 1. Locks materials The lock material on the market can be basically divided into stainless steel, copper and zinc alloy. Stainless steel has high strength, strong corrosion resistance, non-discoloring, which is the best building materials; Copper is generally used, whose...

With the rapid development of pillar industries, such as house, car, high-grade office buildings and hotels etc., and national defense, public security, finance and other systems growing demand for high defensive locks products, high-grade locks have a optimistic market outlook. Lock itself is a decoration, and if the material or coating appears problem, it can lead to rust or coating color fall off. It is suggested to choose gold-plated copper or other coating adhesion. With the continuous improvement...

During normal application, if there is any dirt, you can use dry cloth to clear, but do not use chemicals such as detergent to scrub, which can damage the leakage protective film and cause fading. Don't use wet cloth to wipe the lock body and the handle, because some of the metal locks will rust; alloy material will wear off films of locks, so to lose beautiful effect. In use process, some of the zinc alloy and copper locks will have "spots" after a long time installed on the door,...