From the extrusion process, it can be seen that the Screw operates under high temperature, certain corrosion, strong wear, and high torque. Therefore, the screw must: Threaded Rod,B7 High Strength Screw,Special ASME Full Thread Bolt,High Strength Low Temperature Studs AM FASTENER , https://www.asmefastener.com
1) High temperature resistance, without deformation at high temperatures; 2) Wear resistance and long service life; 3) Corrosion resistance, materials with corrosiveness; 4) High strength, capable of withstanding high torque and high rotational speed; 5) Having good cutting performance; 6) After heat treatment, the residual stress is small, and the thermal deformation is small.
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