锅炉焊接的质量检验

锅炉是通过燃料燃烧释放出化学能使水转变成蒸汽的换热设备,是一种高温、高压、有可能发生爆炸危险的特种设备。随着科学技术的快速发展,锅炉的温度及压力越来越高,超临界、超超临界锅炉对质量的要求也越来越高,焊接是锅炉制造的主要工艺方法,焊接质量直接关系到锅炉产品质量和使用寿命。锅炉的恶性事故,国内外时有发生,其中大部分就是由于焊接接头质量问题造成的。因此,焊接的质量检验对保证锅炉产品质量起主要作用。本文对锅炉焊接的质量按检验阶段作了必要的论述,同时对常见的焊接缺陷作了简要的分析。

welding Inspection of Boiler

Boiler is heat exchange equipment that through combustion to release chemical energy, transfer water energy to steam energy, is special equipment with high temperature, high pressure, and high the risk of explosion. With the rapid development of science and technology, temperature and pressure of boiler is getting higher and higher, supercritical and ultra - super critical give a higher quality requirement to boiler. Welding is main process for boiler. The quality and service life of boiler has a direct relation with welding. Boiler serious accident occurred in domestic and abroad. Some of those accidents are due to the quality of welding joint. Therefore, Welding Quality Inspection plays a important role for quality of boiler. This article do a necessary discuss to boiler welding according to inspection phase, and do a general analysis to normal welding defect.