发明名称 |
PERFIS DE PECA BRUTA SEUS PROCESSOS DE OBTENCAO E APERFEICOAMENTOS TRAZIDOS A LAMINACAO UNIVERSAL DE TRILHOS |
摘要 |
The primary blank 1, which is to be transformed into a finished rail by means of universal passes, edging passes and a finishing pass, is characterized by a symmetric ' UPSILON ' section the thickness of which always varies in the same way. It is designed to be shaped exclusively in open grooves. This primary blank 1 is roughed in a specific manner in a universal stand and undergoes a strong forging which improves the quality of the finished rail. A secondary blank is then formed which has a special shape allowing the production by universal rolling of a very accurate profile of the finished rail. |
申请公布号 |
BR8206394(A) |
申请公布日期 |
1983.09.27 |
申请号 |
BR19828206394 |
申请日期 |
1982.11.03 |
申请人 |
SACILOR SA |
发明人 |
FAESSEL ANDRE;MANNEL GABRIEL BERNARD;MICHAUX JACQUES MARIE |
分类号 |
B21B1/10;B21B1/08;B21B1/085;B21B1/46;(IPC1-7):B21B1/08 |
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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