发明名称 |
H-shape metallic material rolling process |
摘要 |
A process for hot rolling an H-shaped metallic material from a workpiece of rectangular cross section which comprises reducing the workpiece in the width direction thereof while wedgewise knifing the opposing sides of the workpiece by means of a first pair of grooves formed in rolls of a vertical roll stand; reducing the workpiece in the width direction thereof while spreading the knifed sides by means of a second pair of grooves which may be formed in rolls of another vertical roll stand or in the rolls having said first pair of grooves; and subsequently rolling the workpiece to a required size by universal rolling mills. This process thus enables a starting material of a rectangular cross section to be employed instead of that of H-shaped cross section.
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申请公布号 |
US4086801(A) |
申请公布日期 |
1978.05.02 |
申请号 |
US19770782821 |
申请日期 |
1977.03.30 |
申请人 |
NIPPON STEEL CORPORATION |
发明人 |
NAKAJIMA, KOE;WATANABE, KAZUO;TOKITA, HIDEKI |
分类号 |
B21B1/10;B21B1/08;B21B1/088;B21B13/06;(IPC1-7):B21B1/12 |
主分类号 |
B21B1/10 |
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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