Bolts made of high-strength steel, or bolts that require a larger pre-tightening force, can be called high-strength bolts. High-strength bolts are mostly used for the connection of bridges, steel rails, high-pressure and ultra-high-pressure equipment. The fracture of this kind of bolt is mostly brittle fracture. High-strength bolts applied to ultra-high pressure equipment need to be pre-stressed in order to ensure the sealing of the container. Process flow The process flow of high-strength bo...
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