Material and application of high-strength studs

High-strength stud bolts are used for the mechanical fixed link function. The stud bolts have threads at both ends, and the middle screw rod is thick or thin. It is called a straight rod or a shrink rod, also called a double-headed screw.

Material of high-strength studs:

The materials of high-strength studs are 35 #, 45 #, 35CrMoA, 25Cr2MoV, 304, 316, 304L, 316L, 2H, 2HM, B7, B7M, B16, B8, 8, B8M, 8M

Application of high-strength studs:

1. High-strength stud bolts are used for large-scale equipment, and accessories such as sight glasses, mechanical seal seats, and deceleration racks need to be installed. This is the stud bolt used, one end is screwed into the main body, and the other end is equipped with a nut after the attachment is installed. Since the attachment is often disassembled, the thread will be worn or damaged, and it is very convenient to replace the stud bolt.

2. High-strength stud bolts are used when the thickness of the connecting body is large, and stud bolts are used when the bolt length is very long.

In the actual work of high-strength stud bolts, external loads such as vibration and changes, high-temperature creep of materials, etc. will cause friction to be reduced. The positive pressure in the thread pair disappears at a certain moment and the friction is zero, thus loosening the thread connection, such as After repeated action, the threaded connection will relax and fail. Therefore, anti-loosening must be carried out, otherwise it will affect normal work and cause accidents.

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