起重运输机械Issue(8)：96-100,5.
海上风电管桩低合金高强钢大厚板窄坡口多丝埋弧焊CTOD试验研究
周弋琳 1汪兴隆 2崔佃忠 1包孔 2杜渝1
作者信息
- 1. 上海振华重工(集团)股份有限公司 上海 200125
- 2. 上海海工装备智能焊接制造工程技术研究中心 上海 200125
- 折叠
摘要
Abstract
This paper introduces the welding of the 70 mm-thick offshore wind power pipe pile S355NL steel plate by leveraging a new type of mechanical U narrow-groove (after back chipping) double-power three-wire submerged-arc welding. The welding process is elaborated and the macro-section analysis and impact toughness test on welded joint and CTOD test of weld seam are performed. The test results meet the requirements in relevant standards and show that the given double-power three-wire narrow-groove submerged-arc welding can improve the production efficiency, reduce cost and realize better impact toughness and anti-crack property of welded joint without compromising the welding quality, and the steel plate can be used without post-weld heat treatment.关键词
海上风电管桩/低合金高强钢/大厚板/多丝埋弧焊/CTOD/冲击韧性Key words
offshore wind power pipe pile/low-alloy high-strength steel/big plank/multiple-wire submerged-arc welding/CTOD/impact toughness分类
矿业与冶金引用本文复制引用
周弋琳,汪兴隆,崔佃忠,包孔,杜渝..海上风电管桩低合金高强钢大厚板窄坡口多丝埋弧焊CTOD试验研究[J].起重运输机械,2017,(8):96-100,5.
