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对掘进机截割部主动轴热处理变形严重超差的质量问题进行了技术分析研究,热处理运用淬火预热新工艺,组织应力和热应力减小有效控制了变形量解决了上述问题。
The technical problems about the quality of the main shaft heat treatment deformation in the cutting section of TBM are analyzed. The new technology of quenching and preheating is applied in the heat treatment. The reduction of the stress in the structure and the reduction of the thermal stress effectively control the deformation and solve the above problems.