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一、引言在总结压力容器厂制造资格审查经验时大家都提出这样一个问题,钢厂和焊接材料厂不进行资格审查如何保证压力容器厂的制造质量。压力容器的制造质量主要是焊接质量,而焊接质量的基础则是焊接材料。应当由具有相应资格的焊接材料厂制造出符合质量标准的焊材供压力容器使用。我国压力容器常用焊条标准有三个,即GB5117—85《碳钢焊条》、GB5118—85《低合金钢焊条》和GB983—85《不锈钢焊条》,它
I. INTRODUCTION When summarizing the experience of manufacturing qualification of pressure vessel factory, everybody raised the question of how the quality assurance of pressure vessel factory can be guaranteed without qualification examination of steel mill and welding material factory. Pressure vessel manufacturing quality is mainly the quality of welding, welding quality is based on the welding material. Welding consumables that meet the quality standards shall be manufactured by a suitably qualified welding material factory for use in pressure vessels. China’s pressure vessel commonly used electrode standard three, namely GB5117-85 “carbon steel electrode”, GB5118-85 “low alloy steel electrode” and GB983-85 “stainless steel electrode”, it