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在锅炉及化工高压容器的制造过程中,往往会遇到焊缝挑焊根及焊缝缺陷退修的工作。目前,在我厂除低碳钢和16锰钢可以使用碳弧气刨挑焊根和清除焊缝缺陷外,对其他低合金结构钢和低合金热强钢则不允许使用碳弧刨,而是采用批凿抢挑焊根和清除焊缝缺陷。根据生产实践经验,碳弧气刨的劳动生产率、劳动强度和使用灵活性等方面都比批凿枪优越。随着我国社会主义建设的需要,锅炉和化工容器的产量增长很快,现有
In the manufacturing process of boilers and chemical high-pressure vessels, weld welds and weld defects often encounter retreat work. At present, in addition to low carbon steel and 16 manganese steel can be used in carbon arc gouging soldering roots and remove weld defects, the other low-alloy structural steel and low alloy hot-tempered steel is not allowed to use carbon arc shaver, and It is to use batch chisel to pick welding root and remove weld defects. According to the practical experience of production, the carbon arc gouge labor productivity, labor intensity and flexibility of use, etc. than the chisel gun superior. With the needs of socialist construction in our country, the output of boilers and chemical containers has increased rapidly. The existing