公开(公告)号：US4294632A

公开(公告)日：1981-10-13

申请号：US78407

申请日：1979-09-24

申请人： Michio Kubota ,  Kazuhiro Takagi ,  Yorimasa Mitani

发明人： Michio Kubota ,  Kazuhiro Takagi ,  Yorimasa Mitani

IPC分类号： C21D9/52 ,  C21D6/02 ,  C21D9/48

CPC分类号： C21D9/52

摘要： Method for overaging hot dip metal coated steel material to improve formability, comprising rapidly heating the material to a temperature of above 300.degree. C. but below that at which the coating is undesirably denatured at heating rate of at least 50.degree. C./sec., followed by controlled slow cooling of cooling rate of not more than 20.degree. C./sec. Total processing time required can be one or two minutes, thus the method can be continuously carried out.

摘要翻译： 用于过热处理热浸金属涂层钢材以提高成形性的方法，包括将材料快速加热至高于300℃但低于在不超过50℃/秒的加热速率下不适当地变性的温度。 ，随后冷却速度控制缓慢不超过20℃/秒。 所需的总处理时间可以是一到两分钟，因此该方法可以连续进行。