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和哈尔滨机联机械厂合作进行电渣焊接255公尺~3高炉料斗(35刀)的试验中,发现焊缝有大量气孔,气孔的直径在0.5～4公厘之间,长度较大,严重的减少了焊缝的有效负载面积。这种缺陷在工件焊缝中是不允许存在的,必须予以消除。为了能正确的解决这一生产课题,首先需要收集与研究有关电渣焊气孔方面的资料,找到消除气孔的方向,再进行试验研究予以肯定。
In cooperation with Harbin Machine-linked Machinery Factory, it was found that a large number of holes were formed in the welds of 255 meters ~ 3 blast furnaces (35 knives) by electroslag welding. The diameter of the holes was between 0.5 and 4 mm, and the length was large and serious Reduces the effective weld area of the weld. This defect in the workpiece weld is not allowed to exist, must be eliminated. In order to solve this production problem correctly, we first need to collect and study the information about electroslag welding pores and find out the direction of removing the pores, and then carry out experimental research to be affirmed.