发明名称 |
Verfahren zum Herstellen von Warmband und kombinierte Stranggieß- und Warmwalz-Anlage |
摘要 |
By rolling a slab with a thickness of 80 mm or less in a plant including a continuous casting machine and a hot strip rolling mill directly combined with each other, low-speed rolling can be achieved while suppressing a drop of the strip temperature and the occurrence of scales. After a slab 2 cast by a continuous casting machine 1 and being 80 mm or less thick is heated and descaled, it is rough-rolled into a bar with a thickness of 20 to 60 mm by a roughing mill 7 constructed as a 4H-twin mill. After being heated and descaled again, the bar is finish-rolled by finishing mills 19 to 21, each of which employs small-diameter work rolls having a diameter not larger than 500 mm, into a thin plate with a thickness in the range of 1.6 mm to 15 mm or a thick plate with a thickness in the range of 3 mm to 40 mm. The rolling speed on the delivery side of the finishing mills 19 to 21 is set to be as low as 350 m/minute or less with a result of small production scale, and the plant length is set to be not longer than 100 m with a result of small plant space. |
申请公布号 |
DE19518144(C2) |
申请公布日期 |
1999.12.23 |
申请号 |
DE1995118144 |
申请日期 |
1995.05.17 |
申请人 |
HITACHI, LTD. |
发明人 |
KAJIWARA, TOSHIYUKI;YOSHIMURA, YASUTSUGU;HORII, KENJI;SEKI, KOICHI;SHIMOGAMA, HIRONORI;NISHINO, TADASHI;HANZAWA, CHUKICHI;GOTO, AKIRA |
分类号 |
B22D11/12;B21B1/00;B21B1/26;B21B1/46;B21B13/02;B21B13/14;B21B13/22;B21B27/10;B21B28/04;B21B29/00;B21B31/18;B21B31/20;B21B45/00;B21B45/06;B21B45/08;B21C47/02;(IPC1-7):B21B1/26;B22D11/14 |
主分类号 |
B22D11/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|