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广州第三轧钢厂在冶金部钢铁研究院的协助下,最近试验成功一种新型的用低压电阻板直接加热的连续式热处理炉.用于冷轧带钢的退火和打包铁皮的发兰热处理,并已投入生产。这是学理论,抓路线,厂院结合搞革新的成果。在冶金工业和其它工业中,对于金属带材或线材的连续热处理电加热方式,通常是采用硅炭棒或电阻丝为发热元件,加热耐火砖后,才由它幅射到带钢表面上去,这种间接加热方式主要缺点是寿命
With the assistance of the Iron and Steel Research Institute of the Ministry of Metallurgical Industry, Guangzhou No.3 Steel Rolling Mill recently succeeded in experimenting with a new type of continuous heat treatment furnace directly heated by a low-voltage resistance plate for the annealing of cold-rolled steel strip and the heat- And has been put into production. This is the result of learning theory, catching the way, and integrating plant and institute with innovation. In the metallurgical industry and other industries, the continuous heat treatment of metal strip or wire is usually carried out by heating the refractory brick with silicon charcoal rod or resistance wire as the heating element, and then radiating it onto the surface of the strip steel. The main disadvantage of this indirect heating method is life expectancy