The research indicates that the failure of converter gas hood is mainly caused by the heat stress of converter and the corrosion of water in tubes,and the high-temperature operation also shorten the service life of water-wall tubes.

• 研究结果表明:转炉烟罩的失效主要是由烟罩的热应力和工质水的腐蚀所引起,烟罩冷却水管的超温工作大大缩短了它的使用寿命;