修订《承压设备用焊接材料订货技术条件》的思考  

Thinking of Revision Technical Permission of Welding Materials for Pressure Equipment

作　　者：房务农[1] 王笑梅[2] 单新华 

机构地区：[1]合肥通用机械研究院,安徽合肥230031 [2]中国特种设备检测研究院,北京100013 [3]无锡明燕装备有限公司,江苏无锡214128

出　　处：《压力容器》2016年第4期37-45,共9页Pressure Vessel Technology

摘　　要：修订NB/T 47018—2011《承压设备用焊接材料订货技术条件》重点考虑的是影响焊接材料冲击韧性合格指标的相关因素、熔敷金属扩散氢含量的检验方法与环境、承压设备使用药芯焊丝的原则、埋弧焊焊丝与焊剂的批号组配、气体保护焊熔敷金属的力学性能等。在对焊接材料冲击韧性合格指标的分析中,笔者认为冲击韧性只是设备脆性破坏考虑因素之一。首次提出钢材热影响区的冲击韧性,承压设备寿命全过程(原材料、产品建造、服役)对冲击韧性的影响和焊接材料产品质量证明书中冲击韧性值的特点等理念和关注点。The thinking for revising NB/T 47018-2011 Technical Permission of Welding Materials for Pressure Equipment is the related factors influencing the welding material impact toughness qualified index, inspection method and environment of the content for diffusible hydrogen deposited metal, the using principle of flux-cored wire for pressure equipments, submerged arc welding wire and flux of the batch number matching, the mechanical properties of deposited metal for gas shielded welding, etc. In considera- tion of welding material impact toughness qualified index, the author thinks that the impact toughness is only one equipment brittle failure factor. This article first proposed the impact toughness of heat affected zone, and pressure equipments whole life process （raw materials, building products and serving） influence on impact toughness and the characteristics of impact toughness values in welding material product quality certificate such as ideas and concerns.

关 键 词：承压设备 焊接材料 熔敷金属 冲击韧性 

分 类 号：TH49[机械工程—机械制造及自动化] T-652.1[一般工业技术]