建筑钢结构高强钢焊接的三项关键技术  

Three key technologies for high strength steel welding construction steel structure

作　　者：张伟 崔嵬 王垒 

机构地区：[1]浙江精工钢结构(集团)有限公司,浙江绍兴312000

出　　处：《电焊机》2016年第12期88-92,131,共6页Electric Welding Machine

摘　　要：根据相关研究工作和实践工程中发生的问题,有针对性地阐述和分析建筑钢结构高强钢焊接的三项关键技术:(1)必须控制焊接热循环次数,确保焊缝一次合格率;(2)建筑钢结构高强钢严禁大线能量焊接;(3)建筑钢结构高强钢的焊接重点是防止冷裂纹的产生。采用重点工程中产生冷裂纹的相关案例进行旁证,希望能够阐明三项关键技术的实质,目的是减少和消除实际工程中"低级错误"的产生,为同行提供技术支持。In this paper,according to the relevant research work and practical problems in engineering, puts forward the three key technologies for high strength steel welding construction steel structure： （1）must control the welding thermal cycle times,ensure the qualified rate of weld; （2）high strength steel welding construction steel structure for high heat input is strictly prohibited;（3）high strength steel, construction steel structure welding cold cracks the key to prevent. Has carried on the simple elaboration and analysis, especially for key engineering technology, this paper adopts the middle of cold crack circumstantial evidence related cases ,to hope to be able to clarify the essence of the three key technologies,the purpose is to reduce and eliminate the ＂mistakes＂ in practical engineering, to provide technical support for the counterparts.

关 键 词：焊接热循环 一次合格率 严禁大线能量 防止冷裂纹 

分 类 号：TG457.11[金属学及工艺—焊接]