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10Ni5CrMoV钢旋转电弧窄间隙GMAW研究
Study on rotation arc narrow gap gas metal arc welding of 10Ni5CrMoV steel
【摘要】 采用旋转电弧窄间隙GMAW焊接方法对40mm厚10Ni5CrMoV钢进行了焊接。对焊接接头形貌、接头组织、硬度、低温冲击韧性及抗拉强度分别进行了观察和测量。结果表明:焊缝成形较好,没有缺陷,焊缝组织由粒状贝氏体和铁素体组成,焊缝内硬度比较均匀,低温冲击韧性和抗拉强度均符合使用要求,成功实现了大厚板10Ni5CrMoV钢旋转电弧窄间隙焊接。
【Abstract】 The 40 mm thick plate of 10Ni5CrMoV was welded by using narrow gap gas arc welding method with suitable welding parameters.The appearance,microstructure,hardness,low-temperature impact toughness and tensile strength of the welded joints was observed and measured.The results showed that good appearance and no-defect joint was attained,the microstructure in weld metal was mainly grained bainite and ferrite,the hardness of the weld metal was uniform,and the low-temperature impact toughness and tensile strength met the requirements of application.The chosen welding method was effective.
【Key words】 10Ni5CrMoV steel; narrow gap GMAW; microstructure; mechanical properties;
- 【文献出处】 焊接技术 ,Welding Technology , 编辑部邮箱 ,2010年11期
- 【分类号】TG444
- 【被引频次】20
- 【下载频次】220