建筑高强钢棒的热处理工艺优化

发布时间：2018-12-06 07:36

【摘要】：采用不同的退火、淬火和回火工艺对含铟新型建筑高强钢棒进行了热处理,并进行了拉伸和冲击试验。结果表明:随退火温度从880℃提高1000℃,退火时间从2 h延长至6 h,淬火温度从890℃提高至950℃,淬火时间从10 min延长至50 min,回火温度从540℃提高至600℃,回火时间从1 h延长至3 h,钢棒的抗拉强度、屈服强度、断后伸长率和冲击吸收功均先增大后减小。优化的热处理工艺为:960℃×4 h退火+920℃×30 min淬火+580℃×2 h回火。
[Abstract]:A new type of building high strength steel bar containing indium was heat-treated by different annealing, quenching and tempering processes, and the tensile and impact tests were carried out. The results show that with the increase of annealing temperature from 880 鈩，

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