通过优化设计与控制C, Ni, Cr主合金元素和H, O, N气体元素含量, 优化管材冷轧工艺, 有效防止了1Cr13管材加工时的开裂现象, 保证了管材表面质量良好; 通过调整成品热处理工艺, 使试制的管材样件的力学性能完全满足了技术条件要求.
The control poles for driving machine in the built and building nuclear power station are made of thick wall 1Cr13 tubes which all depend on overseas importation. With the fast development of domestic nuclear power stations and the need with coming export, as one of the key parts of driving machines, the 1Cr13 tubes used as control poles should be finished in our country. By optimizing the contents of C, Ni, Cr, H, O and N etc., and adjusting the technology of cold rolling, the cracking problem of 1Cr13 tube as control poles during machining is avoided and favorable surface quality is also obtained. The mechanical properties of finished tubes reach the technical request after proper heat--treatment.
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