发明名称 |
Method of rolling slabs for the manufacture of beam blanks and a roll to be used therefor |
摘要 |
A method of rolling raw materials inclusive of slabs for the manufacture of beam blanks, and a roll to be used therefor, are disclosed. This method includes the steps of (a) subjecting a raw material, whose section consists of a web portion and a flange portion(s) having a width wider than the thickness of the web portion, to such a partial rolling that the web portion is partially rolled at regions inclusive of at least the joints of the flange portion(s), except the remaining central region, among a plurality of regions divided in the widthwise direction of the web portion, and (b) subjecting only the remaining central regions to a rolling. In the practice of this method, there is used a roll consisting of a single cylindrical drum including a first segment and a second segment arranged side by side to each other; the first segment having at least one relief of circumferential grooves facing the web portion; a plurality of rolling collars separated apart from each other through the relief in the axial direction, and serving for the partial rolling of the web portion, and a circumferential groove(s) dividing a side of the rolling collar for the web portion near the joint and enclosing the flange portion; and the second segment having a pair of reliefs each composed of a wider circumferential groove facing the flange portion, and a rolling drum extending between the reliefs and serving for the rolling of only the remaining central region of the web portion.
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申请公布号 |
US4402206(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19810266310 |
申请日期 |
1981.05.20 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
YANAZAWA, TADAAKI;TANAKA, TERUAKI;YAMASHITA, MASASHI;EHIRO, TAKASHI;OKUMURA, HIROSHI;SAITO, SHINZO;KUSABA, TAKASHI |
分类号 |
B21B1/08;B21B27/02;D06M15/673;(IPC1-7):B21B1/08 |
主分类号 |
B21B1/08 |
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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