发明名称 |
Four-high mill stand roll change device, a method of retrofit, and a roll change device therefrom |
摘要 |
The invention is directed to a roll change device for use in a four-high rolling mill stand, and in particular it is directed to retrofitting an existing four-high rolling mill stand with a roll change device comprising actuators that are fastened to opposing inboard exterior surfaces of the lower backup roll chocks in the mill stand and a pair of spaced apart lift-rails attached to the actuators by lift-rail hooks and positioned to engage the lower work roll chocks of the mill stand when the actuators are operated. The roll change device further includes a self-contained roll staging platform that is installed as a single unit within the mill floor adjacent the four-high rolling mill stand or removed as a single unit from its position within the mill floor.
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申请公布号 |
US6408667(B1) |
申请公布日期 |
2002.06.25 |
申请号 |
US20000696835 |
申请日期 |
2000.10.26 |
申请人 |
BETHLEHEM STEEL CORPORATION |
发明人 |
DE JESUS, JR. JOSE M. |
分类号 |
B21B31/10;(IPC1-7):B21B31/07 |
主分类号 |
B21B31/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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