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                                                                  凯发网址_CPC复正当出产高速钢轧辊有何特性?

                                                                  作者:凯发网址日期:2018-04-25 11:07浏览次数:853

                                                                    答:为了停止离心锻造复正当出产高速钢轧辊的偏析征象,日本新日铁公司开拓了持续浇铸成形复正当(CPC法)。CPC法与连铸工艺相同,其根基道理是将作为轧辊芯部的铸钢或锻钢芯棒,垂直直立在环形水冷结晶器中部,再将作为轧辊事变层原料的高速钢钢水浇入到芯棒与结晶器间的环形旷地中,在事变层钢水熔敷并依次凝固在芯棒周围的同时,从结晶器下部以间歇方法拉拔,直至整个轧辊辊身熔敷完毕,从而制成高速钢复合轧辊。为了使轧辊事变层的高速钢钢水与轧辊芯部的铸钢或锻钢芯棒可以或许完全熔敷,在芯棒的周围举办电磁感到加热,,使芯棒的外貌处于高温状态。此法出产的高速钢轧辊具有外层结晶组织严密、碳化物颗粒漫衍匀称、芯部强度高档利益,可有用地停止金属元素的偏析征象,但不敷之处是出产装备投资大、操纵方法伟大、制造本钱相对较高。  (未完待续)