首页>
外国专利>
THICK AND LARGE-DIAMETER PIPE WELDED JOINT STRUCTURE AND WELDING PROCEDURE METHOD
THICK AND LARGE-DIAMETER PIPE WELDED JOINT STRUCTURE AND WELDING PROCEDURE METHOD
展开▼
机译：厚大口径管道焊接接头结构及焊接工艺方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide an on-site welded joint structure and a welding procedure method with high reliability.SOLUTION: Provided is a thick and large-diameter pipe welded joint structure obtained by performing, in advance, hot working or cold working on a pair of thick, large-diameter base pipes 1 comprising a Ni-based alloy containing 20 wt% to 35 wt% of Cr, 0.1 wt% to 10 wt% of Mo, 0.1 wt% to 3 wt% of Al, 0.11 wt% to 3 wt% of Ti, and Ni as a remainder, and on a pair of intermediate pieces comprising the same Ni-based alloy as that of the base pipes 1 and each having a width of about 60 mm; performing a solid-solution treatment on at least a range including portions to be final welded portions at a site where a boiler is installed, and performing thereafter finally welding the intermediate pieces at the site where the boiler is installed.
展开▼
