Type of wrench

source:Industry News release time:2021-04-16 Article author:Rosit Popular:Air band saw

　　Allen wrench manufacturers will show you the types of wrenches:

　　1. Socket wrench: generally called a socket: it is composed of multiple sockets with hexagonal holes or twelve-angle holes and equipped with handles, extension rods and other accessories. It is especially suitable for very narrow or recessed screw positions. Bolts or nuts in the depths.

　　2. Hexagon socket wrench: L-shaped hexagonal rod-shaped wrench, specially used to turn socket screws. The model of the hexagonal wrench is based on the size of the opposite side of the hexagon, and the size of the bolt has national standards.

　　3. Adjustable wrench: The opening width can be adjusted within a certain size range, and it can turn bolts or nuts of different specifications.

　　4. Hook wrench: also known as crescent wrench, used to turn flat nuts with restricted thickness.

　　5. Dead wrench: One or both ends are made with fixed size openings for screwing nuts or bolts of a certain size.

　　6. Torx wrench: Both ends have working ends with hexagonal holes or twelve-angle holes, which are suitable for occasions where the working space is narrow and ordinary wrenches cannot be used.

　　7. Dual-purpose wrench: one end is the same as a single-head open wrench, the other end is the same as a torx wrench, both ends are screwed with bolts or nuts of the same specification.

　　8. Torque wrench: It can display the applied torque when turning the bolt or nut; or when the applied torque reaches the specified value, it will emit a light or sound signal. Torque wrenches are suitable for assembly where the torque is clearly specified.

　　1. The stability of the electroplated nickel layer in the air is very high. Due to the strong passivation ability of metallic nickel, a very thin passivation film can be quickly formed on the surface, which can resist the corrosion of the atmosphere, alkali and certain acids. .

　　2. Electroplated nickel crystals are extremely small and have excellent polishing performance. The polished nickel coating can obtain a mirror-like gloss appearance while maintaining its gloss for a long time in the atmosphere. Therefore, the electroplated layer is often used for decoration.

　　3. The hardness of the nickel plating layer is relatively high, which can improve the wear resistance of the surface of the product. In the printing industry, the nickel plating layer is commonly used to increase the hardness of the lead surface.

　　4. In electroplating, due to the many excellent properties of electroplated nickel, its processing volume is second only to electroplated zinc, and its consumption accounts for about 10% of the total nickel output. Nickel plating is also widely used in functional aspects, such as repairing worn and corroded parts, and using brush plating technology for partial electroplating. The electroforming process is used to manufacture electroformed plates, record molds and other molds in the printing industry. The thick nickel-plated layer has good wear resistance and can be used as a wear-resistant coating.