The screw is one of the important parts of lathes and machine tools. It is used in the feed mechanism and adjustment movement mechanism of machine tools and lathes. During the working process, the screw has to bear huge friction, so it wears out quickly. For this reason, many manufacturers use medium frequency induction heating machines for quenching heat treatment, with good results. Today, we will take the SM8650A lathe screw as an example and briefly talk about its heat treatment process.
SM8650A lathe screw, diameter φ100mm, total length 6486mm, threaded part length 5460mm, threaded part is connected with 14 sections, each section is 392mm long (including joints, each section is 390mm long). Made of T12A steel. The joint technology is exquisite and the joints are well sealed. ) After blanking, a medium frequency induction heating machine is used for spheroidizing annealing, cylindrical turning and trapezoidal thread milling, then stress relief treatment at 550-600°C, heating and quenching at 760-780°C, tempering at 220-260°C, and grinding. After rounding and threading, low temperature aging is performed. After this heat treatment, the hardness of the screw is 56-60HRC, and the radial circular runout is ≤0.15mm.
Many manufacturers use the above process for heat treatment, and the lathe screws they produce are of good quality and meet the needs of the work. What's even better is that this process is suitable for large-scale production and can greatly improve workers' production efficiency.Many manufacturers use the above process for heat treatment, and the lathe screws they produce are of good quality and meet the needs of the work. What's even better is that this process is suitable for large-scale production and can greatly improve workers' production efficiency.
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GS-ZP-1200
