Incoloy825Ω环对接的焊接工艺研究

崔巍; 高磊; 张莹莹; 杨影

doi:10.7512/j.issn.1001-2303.2020.10.14

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Incoloy825Ω环对接的焊接工艺研究
Research on welding process of the docking method for Ω ring of Incoloy825
2020年50卷第10期页码：70-73
纸质出版：2020
DOI： 10.7512/j.issn.1001-2303.2020.10.14
稿件说明：

移动端阅览

崔巍, 高磊, 张莹莹, 等. Incoloy825Ω环对接的焊接工艺研究[J]. 电焊机, 2020,50(10):70-73. DOI： 10.7512/j.issn.1001-2303.2020.10.14.

CUI Wei, GAO Lei, ZHANG Yingying, et al. Research on welding process of the docking method for Ω ring of Incoloy825[J]. Eletric Welding Machine2020, 50(10): 70-73. DOI： 10.7512/j.issn.1001-2303.2020.10.14.

摘要

为了避免换热器密封设计结构用的Incoloy825Ω环在焊接过程中出现热裂纹和气孔缺陷而影响换热器的密封性能

采用钨极氩弧焊对Incoloy825进行了管状对接水平固定焊接工艺评定试验。通过宏观检测、无损检测、力学试验、弯曲试验及晶间腐蚀试验验证了焊接工艺的合理性

选出最优的焊接工艺参数来指导实际生产操作

以确保产品质量满足设计及使用要求。

Abstract

In order to avoid thermal cracks and porosity defects in the welding process of Incoloy 825 Ω ring

which is used for sealing design structure of heat exchanger

which will affect the sealing performance of heat exchanger

the horizontal fixed welding procedure qualification test of tube butt joint of Incoloy 825 was carried out by using tungsten argon arc welding. The rationality of the welding process is verified by macro inspection

non-destructive testing

mechanical test

bending test and intergranular corrosion test. The optimal welding process parameters are selected to guide the actual production operation

so as to ensure that the product quality meets the design and application requirements.