据有关资料介绍,全世界的钢铁产量,约有50%左右是通过焊接加工这一手段,由“原材料”变成“成品”的。如锅炉、压力容器、航空航天器、船舶、汽车、桥梁、金属构架等等,不仅在制造中大量采用焊接技术,更重要的是焊接质量直接影响着产品的安全性,直接关系到国家财产和人民生命安 According to relevant information, about 50% of the world's steel production is converted from “raw materials” to “finished products” by means of welding and processing. Such as boilers, pressure vessels, aerospace vessels, ships, automobiles, bridges, metal structures, etc., not only in the manufacture of large-scale use of welding technology, more importantly, the quality of the weld directly affects the safety of the product is directly related to national property and People's lives