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요약정보
防止厚壁异种钢管道焊缝根部产生收缩沟的方法 / Methods of preventing shrink ditch in weld root of thick-wall dissimilar steel pipes
Resource Type
Academic Journal
Authors
于立学
;
YU Li-xue
Source
电焊机 / ELECTRIC WELDING MACHINE
. 39(8):41-44
Subject
厚壁异种铜管道
焊缝根部
收缩沟
Language
Chinese
ISSN
1001-2303
Online Access
Find it @ DONGA
초록
分析了在核电站核岛安装工程中,对于管道壁厚大于14 mm的超低碳不锈钢管(Z2CN18.10)和碳钢管(P280GH)组成的异种钢对接接头,焊接后在碳钢侧热影响区焊缝根部产生收缩沟的原因.根据获得的数据分析说明了收缩沟现象主要是由于碳钢侧热影响区碳迁移和焊接应力的共同作用造成的,并通过焊接试验验证了收缩沟原因分析的正确性,同时总结了合适的焊接工艺和操作方法,有效解决了收缩沟这一问题.
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