首页>
外国专利>
HEAT TREATMENT METHOD FOR BRANCH PIPE WELDED PORTION, AND BRANCH PIPE SEAT STRUCTURE
HEAT TREATMENT METHOD FOR BRANCH PIPE WELDED PORTION, AND BRANCH PIPE SEAT STRUCTURE
展开▼
机译:支管焊接部位的热处理方法及支管座结构
展开▼
页面导航
摘要
著录项
相似文献
摘要
PROBLEM TO BE SOLVED: To provide a heat treatment method which enables an alleviation of tensile residual stress caused by welding or processing of a pipe.;SOLUTION: In a heat treatment method in which a small bore pipe having a diameter of not larger than 200 mm and a thickness of not larger than 15 mm is welded to a large bore pipe using a joining joint, heating is made near a welding portion after welding the small bore pipe to the joining joint, and then pipe inner surfaces are cooled with a refrigerant, the distance between a heating area and the large bore pipe is not smaller than 70 mm.;COPYRIGHT: (C)2012,JPO&INPIT
展开▼
机译:解决的问题:提供一种能够减轻由于焊接或加工引起的拉伸残余应力的热处理方法。解决方案:一种热处理方法,其中直径不大于200的小口径管子接合部将大直径管的厚度设为15mm以下,厚度为15mm以下的大孔管,在将小孔管焊接至接合部后,在焊接部附近进行加热,然后用制冷剂冷却管内表面。 ,加热区域与大口径管之间的距离不小于70 mm 。;版权所有:(C)2012,JPO&INPIT
展开▼