文章叙述了甲醇分厂净化Ⅱ低变炉使用过程中存在的问题,分析了出口弯头产生裂纹的原因,详细介绍了弯头修复方法及焊接过程,经实际使用,证明了修复后净化Ⅱ低变炉质量达到使用要求。%The paper described the methanol sub-factory purification Ⅱ low variable furnace in use process,analyzed the problems existing in the export elbow crack reason,detailed introduced the elbow repair methods and welding process,by practical use,proved repaired Ⅱ low purify variable furnace quality to achieve the use requirement.
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