The basic use of standard parts Matters
Chengyang empty heart rivets Xiaobian tell you basically use standard parts of matter:
Product Note:
Stainless steel and carbon steel differ in substance, stainless steel has good ductility, improper use of screws and nuts after the cause can not be unscrewed with. Commonly known as "locked" or "killed." Improve locked from the following main aspects:
1. Choose the right product:
(1) before use to confirm whether the mechanical properties of the product can meet the requirements (such as tensile strength bolts and nuts safe load).
(2) the length of the bolt should be selected appropriate to expose the nut tightened after 1-2 Pitch prevail.
2. To reduce the coefficient of friction:
(1) The threads must be kept clean.
(2) prior to use appropriate lubricant (eg: # 40 oil, butter).
3. The correct way:
(1) the nut must be perpendicular to the axis of the screw is screwed, do not tilt.
(2) In the tightening process, urging must be uniform, the force should not exceed the safe torque value (with safety torsional torque table).
