日本福山钢管公司对过去分批退火设备进行了彻底的改造,而创新地研制成了加热和冷却效率均高的连续罩式退火炉(简称UAS法)。过去用的分批退火方法是:在要退火的板卷垛好,然后用吊车将加热罩和冷却罩作互相交替地盖罩,只是罩子移动。但这种连续罩式退火炉是:采用加热室和冷却室为固定式的,而板卷是连续地自动地从加热室往冷却室移动的新方式,其特点 Fukuyama Steel Pipe Co., Ltd. made a radical revamp of the past batch annealing facilities and innovatively developed a continuous annealing furnace (UAS method) with high heating and cooling efficiency. The batch annealing method used in the past was to stack the coil to be annealed and then cover the heating cap and the cooling cap alternately with each other by a crane but with the cover moved. However, this continuous bell annealer is a new way of using a heating chamber and a cooling chamber as stationary while the coil is continuously and automatically moving from the heating chamber to the cooling chamber, and its characteristics