A normalizing and tempering process for motor shaft forgings
A motor shaft and forging technology, which is applied in the field of normalizing and tempering of motor shaft forgings, can solve the problems of reducing the pace of power station construction, not improving economic benefits, and high production costs
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[0021] refer to figure 1 According to the normalizing and tempering process of motor shaft forgings of the present invention, the motor shaft forgings with a radius of 400mm are normalized and tempered. S001: Use carbon-manganese steel ingots smelted by electric arc furnace, refined outside the furnace, and smelted by vacuum degassing as raw materials for motor shaft forgings. During the above refining and smelting process, ensure that in the motor shaft forgings: S≤0.020%, P≤0.015 %, H≤2ppm, O≤30ppm, N≤65ppm, Cu≤0.20%. S002: Air-cool the motor shaft forging to 475±25°C after forging, then put the motor shaft forging into a heat treatment furnace at 200mm / h for heat preservation, to achieve the same internal and external temperature of the motor shaft forging, and complete the transformation of the pearlite structure. The radius of the motor shaft forging is 400mm, so the above heat preservation time is 2 hours. S003: The motor shaft forging is made of carbon-manganese steel...
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