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土建施工中往往会出现照明、暖气、上下水道或煤气管道等预留孔位置有误差或需重新扩孔,开孔,这就给施工质量和进度造成不利。有人曾试图用气焊火焰完成上述工作,但劳动条件差,成本高,操做困难。我们经过试验用近似于电焊的操作方法,采用电弧对非金属材料进行切割或穿孔,取得了良好的效果。通过多次试验,不仅对水泥件可以切割或穿孔、而且对红砖、耐火砖、石头、陶瓷件等均能完成切割或穿孔的任务。
Civil construction often appear lighting, heating, sewer or gas pipelines and other reserved hole location error or need re-reaming, opening, which gives the construction quality and progress of the negative. Some people have tried to use gas flame to complete the above work, but poor working conditions, high cost, difficult to operate. We have been tested with similar to the welding operation method, the use of arc cutting or perforation of non-metallic materials, and achieved good results. Through many tests, not only for cement pieces can be cut or perforated, but also on the red brick, firebrick, stone, ceramic pieces, etc. can complete the task of cutting or perforation.