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经研究,国家质检总局对 CF 系列钢板使用提出以下意见:1)鉴于 CF 系列钢板在焊后消除应力热处理(以下简称焊后热处理)过程中,对热处理温度控制要求非常严格,而目前大多数球形压力容器现场组焊企业及热处理企业难以掌握,因此,在采用该系钢板制造球形压力容器时,应当尽量在避开需进行焊后热处理的厚度范围。2)对采用 CF 系列钢板制造的球形压力容器确需进行焊后热处理的,从事热处理的企业应将其近
After research, AQSIQ made the following comments on the use of CF series steel plates: 1) In view of the fact that CF series steel plates require very strict control of heat treatment temperature after the post-weld stress relief heat treatment (hereinafter referred to as “post weld heat treatment”), most of the current The spherical pressure vessel site welding companies and heat treatment companies difficult to grasp, therefore, the use of the Department of steel manufacturing spherical pressure vessels, should try to avoid the need for post-weld heat treatment thickness range. 2) on the use of CF series of spherical pressure vessels made of steel do need to post-weld heat treatment, engaged in heat treatment enterprises should be near