Stress relaxation precision control method for heat treatment of large weak-rigidity cone bottom

The invention provides a heat treatment stress relaxation precision control method for a large weak-rigidity cone bottom. The heat treatment stress relaxation precision control method comprises the following steps that S1, a large-load inner supporting tool is designed; and S2, the effect force rela...

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Hauptverfasser: DOU PENGCHENG, LIU YINGJIE, HAN GUOLIANG, TIAN SHU, LI XUELIANG, GU CHUNJIE, YIN WEI, HU DEYOU, WANG YANQIN, WANG XINMENG, WANG HE, SHANG HONGSHUAI, QU FUQUAN, ZHANG XIALU, WANG ZHENKUI, WANG SHUO, LI ZHI, SHA QINGTAO, LIU FENGCAI, HAN ZHENHAO, CAO JIE
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides a heat treatment stress relaxation precision control method for a large weak-rigidity cone bottom. The heat treatment stress relaxation precision control method comprises the following steps that S1, a large-load inner supporting tool is designed; and S2, the effect force relaxation is controlled when the cone bottom is quenched. The method has the beneficial effects that through a large-load inner supporting tool design method, superposing of the heat treatment load and the temperature effect of the ultra-large weak-rigidity cone bottom in the aging state is completed, a double-improvement mechanism of the elastic-plastic conversion proportion of the large opening end and roundness correction and performance of the opening end of the large cone bottom is achieved, and deformation and machining enveloping after quenching of the large cone bottom are optimally solved. 本发明提供了一种大型弱刚性锥底热处理应力松弛精度控制方法,包括以下步骤:S1、设计大载荷内撑工装;S2、对淬火锥底时效应力松弛控制。本发明有益效果:通过大载荷内撑工装设计方法,完成在时效状态下超大型弱刚性锥底热处理载荷和温度效应叠加,实现大口