Torque wrenches are also called torque meters and torque screwdrivers. It is based on the bending principle of the beam, the bending principle of the torsion bar and the compression principle of the coil spring, and can measure the magnitude of the moment acting on the nut. Torque wrench is a special tool for precise control of bolt and nut tightening torque. It should be used correctly according to the following requirements:
1. When using a torque wrench, load it slowly and slowly. Do not yank or press it violently so as to avoid overload, resulting in inaccurate output torque. After reaching the preset torque, stop loading.
2, can not use the preset type torque wrench to remove the bolt or nut.
3. It is forbidden to add a sleeve to extend the arm at the end of the torque wrench to prevent damage to the torque wrench.
4. Adjust the required torque as needed, and confirm that the adjustment mechanism is in locked state before use.
5. When the preset type torque wrench is used, it should be adjusted to a small torque to fully relax the force measuring spring to prolong its life.
6, should avoid moisture intrusion preset torque wrench to prevent parts rust.
7. The size of the opening of the torque wrench must be consistent with the size of the bolt or nut. The wrench opening is too large to slip off and damage the hexagon of the screw. In the maintenance of imported vehicles, attention should be paid to the selection of the metric wrench.
8. Selection principles for various types of wrenches. Generally, socket wrenches are preferred. Followed by plum wrenches, open-end wrenches are again used, and movable wrenches are selected afterwards.
After years of development, Chu Cheng has made great progress and laid a leading position in the industry. At the same time, it is even more important that Chu Cheng’s own characteristic culture of truth-seeking and innovation is gradually formed. From the product to the heart, from the tangible to the intangible, sincere to the inside and the shape to the outside.
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