一、前言热切分轧制工艺虽由来已久,但近些年来才被重视和广泛采用。美国最早在西拉库兹厂研制钢轨纵向切分轧制时获得成功,切分后的各部分用以轧制各种型材和棒材。目前热切分轧制更广泛地应用在连铸坯、钢坯、钢板、型材和线材生产中。我国五十年代在鞍钢也进行过 First, the introduction Eager rolling process although a long time, but only in recent years has been valued and widely used. The United States was the first to succeed in the development of vertical rail cutting at the West Lakutsk Plant. The severed sections were used to roll out various shapes and bars. The current hot-point rolling more widely used in the slab, billet, steel, profiles and wire production. China’s fifties have also been carried out in Ansteel