一、前言一九七○年英国“COOPERHEAT”公司采用“HAUCK”喷咀内部燃烧法第一次完成了大型球罐焊后现场整体热处理。一九七六年我国也试验成功这一整体热处理技术,并现已成为我国目前应用最广泛的球罐焊后整体热处理方法。到目前为止,采用这种方法处理了大约一百三十台各类球罐,其中容量最大的已达到1350米~3。球罐焊后整体热处理,对消除焊接残余应力,防止球罐脆性破坏,确保球罐安全可 I. Introduction In 1970, “COOPERHEAT” company in the United Kingdom adopted the internal combustion method of “HAUCK” nozzle to complete the overall heat treatment on the site of large spherical tank after welding. In 1976, our country also successfully tested the overall heat treatment technology and has now become the most widely used dome-welding heat treatment method after domestication in China. To date, about 130 different types of spherical tanks have been treated this way, of which the largest one has reached 1,350-3. Spherical tank after welding the overall heat treatment, to eliminate welding residual stress, prevent brittle brittle tank to ensure that the tank can be safe