论文部分内容阅读
焊接技术产生于十九世纪末,二十世纪初才应用于金属结构工业。随着工业的发展,焊接技术的应用也日益普遍。近年来,国外焊接技术又有了飞跃地发展。目前世界上最大的原子反应堆全部采用焊接方法建成。随着现代化机械向大型化发展,采用铸、锻、焊联合结构已成为一种既定的先进方法。无数事实告诉我们,近代工业的发展与焊接技术的进步是分不开的。在焊接技术的应用过程中,早在1920年前以气焊为主的时期,就有关于弧光引起白内障以及锌蒸气危害的记载。1930年后,电焊几乎成为“万能”。这时、触电、电弧光灼伤、电光性眼炎等职业危害也随之增多。但这些问题一经发现都及时地
Welding technology was produced in the late nineteenth century, early twentieth century was applied to the metal structure industry. With the development of industry, the application of welding technology is also increasingly common. In recent years, foreign welding technology has leapfrog development. At present, all the largest atomic reactors in the world are built by welding. With the modernization of machinery to large-scale development, the use of cast, forged, welded joint structure has become an established advanced method. Numerous facts tell us that the development of modern industry and welding technology are inseparable. In the application of welding technology, as early as 1920 before gas welding-based period, there is a record of arc-induced cataract and zinc vapor hazards. After 1930, welding almost became “all-purpose.” At this time, electric shock, electric arc burns, ophthalmic ophthalmic and other occupational hazards also will increase. However, these problems were discovered in time