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从表中可以看到,84～85年度的容器焊接试板合格率仅为92.5％,而近1/13的焊接试板不合格。根据《压力容器安全监察规程》(以下简称《容规》第43条的规定,焊接试板试验如不合格,经复试仍不合格则试板代表的容器焊缝为不合格。对于焊接试板不合格的容器,除一部份在结构许可时,可将原焊缝及热影响区去除,并另带试板重新焊接外,大部份容器只得报废。其结果一是影响生产周期,二是降低经济效益。
As can be seen from the table, the qualified rate of container welding test panels in 84-85 was only 92.5%, while nearly 1/13 of the welding test panels failed. According to the “Pressure Vessel Safety Supervision Regulations” (hereinafter referred to as “the rules” Article 43, welding plate test if unqualified, after re-test still failed the representative of the test plate container weld is not qualified for welding test panels Unqualified containers, except part of the structure permits, the original weld and heat affected zone can be removed, and the other with the test board re-welding, most of the container had to scrap. The result is an impact on the production cycle, the second Is to reduce economic efficiency.