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OOCr22Ni5Mo3N双相不锈钢焊接工艺研究 总被引:1,自引:0,他引:1
OOCr22Ni5MO3N双相不锈钢焊接时,其焊缝和热影响区(HAZ)的韧塑性和耐蚀性通常是主要考虑因素.采用气体保护钨极氩弧焊(GTAW),通过调整焊接工艺,分析研究该工艺下焊接接头的相比例及耐腐蚀性能,为OOCr22Ni5Mo3N双相不锈钢的现场焊接提供指导. 相似文献
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00Cr22Ni5M03N双相不锈钢的两相组织结构具有良好的耐蚀性和力学性能,因此在压力容器及集输管道等领域得到了广泛的应用。在00Cr22Ni5M03N双相不锈钢焊接时,必然要经历热循环过程,虽然该过程变化很快且历时短暂,但往往会导致热影响区相比例和相分布状态的变化,从而影响焊接接头的力学性能和耐腐蚀性能。通过热模拟试验研究,分析了00Cr22Ni5M03N钢焊接时热影响区的相比例及组织转变规律,为制定和调整焊接工艺提供理论参考依据。 相似文献
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This paper described the work of welding process design for the " West-East" pipeline project, which is high pressure, large diameter and heavy wall thickness. According to the different geographical situation, climate, culture and the flexibility of the welding methods, this work recommended the semi-automatic process at the east and middle sections and automatic process at the west section of the pipeline project. The manual process is recommended on the tie-in joints and repairs. The double joint pipe and the 3 joint pipe are recommended at the water net place and some in-ditch welding place to reduce the welding volume. Also the special redesigned bevels are recommended for the automatic process and the semiautomatic process. Through all destructive tests, the results shows the welds are meet the requirements of related standards, specifications and design documents. 相似文献
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00Cr22Ni5Mo3N双相不锈钢焊接时,其焊缝和热影响区(HAZ)的韧塑性和耐蚀性通常是主要考虑因素。采用气体保护钨极氩弧焊(GTAW),通过调整焊接工艺,分析研究该工艺下焊接接头的相比例及耐腐蚀性能,为00Cr22Ni5Mo3N双相不锈钢的现场焊接提供指导。 相似文献
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