12Cr2Mo1R钢制封头拼接焊缝性能研究

Petro-Chemical Equipment(2015)

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Abstract
随着我国制造技术的提升,承压设备大型化成为发展趋势,12Cr2Mo1R钢制封头越来越多地需要拼接.将12Cr2Mo1R焊接接头试件随产品封头一同进行热成型后,再经正火加回火的恢复材料性能热处理.分别对最大模拟焊后热处理及最小模拟焊后热处理的试件进行拉伸试验、低温冲击试验、步冷试验及金相检验等试验来验证所选焊接工艺的可行性.试验结果表明,拼接焊缝性能能够满足工程要求.
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