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10 methods of anti-loosening safety bolts (7) hot-melt fastening technology
As a tool commonly used in fixtures, bolts are widely used, but long-term use will also bring many problems, such as loose connection, insufficient clamping force, and rusted bolts. During the processing and production of parts, the quality and efficiency of processing will be affected due to the loose connection of bolts. So how to prevent the bolt from loosening? Anti-loose purpose: to work more effectively for a long time; to improve the reliability of related workpieces.
Hot-melt fastening technology does not require pre-drilling, and can be directly tapped to achieve connection under the closed profile, which is widely used in the automotive industry.
This hot-melt fastening technology is a cold forming process that conducts the high-speed rotation of the motor through the tightening shaft in the center of the equipment to the plastic deformation of the plates to be connected due to friction and heat, and then self-tapping and screwing.
The hot melt fastening process steps and process include six stages: rotation (heating) → penetration → through hole → tapping → threading → fastening.