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在压力容器制造中,采用20g钢板、厚度10毫米、根据“压力容器安全监察规程”及JB741—80“钢制焊接压力容器技术条件”有关规定,在容器施焊前应做工艺评定,焊接过程中严格遵守合格的工艺评定参数,焊接产品试板,只有当试板经各项试验合格后,产品才视为合格。采用埋弧自动焊,优选焊接参数,针对母材材质,严格控制焊丝化学成分,是克服焊接接头冷弯裂纹的重要途径。
In the pressure vessel manufacturing, the use of 20g steel, the thickness of 10 mm, according to “Pressure Vessel Safety Supervision Regulations” and JB741-80 “steel pressure vessel technical requirements for welding” the relevant provisions of the container before welding should be done to assess the process, the welding process In strict compliance with the requirements of qualified process evaluation, welding test panels, only when the test panel after passing the test, the product is considered as qualified. The use of submerged arc welding, the preferred welding parameters, for the parent material, strict control of the chemical composition of the wire is to overcome the weld joint cold bending an important way.