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Determination of screw tightening torque during assembly
The tightening torque of screws is not enough to rely on theoretical calculations. In practical applications, the tightening torque of screw connections is mainly to satisfy the tightness and anti-loosening of the product during work and transportation. The tightening and anti-loosening inspections of screws are often verified by vibration tests. The vibration test can be determined according to different products, according to the relevant national reliability and environmental test standards. (Guide: Briefly describe the thread of the bolt surface and its classification)
In summary, the determination of the appropriate screw tightening torque should be based on the reference value of the screw tightening torque in the table, assembling a batch of products, and then actually observing whether the screws are screwed in place, whether there are thread slips and damage, and tightening The phenomenon of broken screws; at the same time, vibration test is done according to the product standard, and the screw connection cannot be loosened.
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