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发明名称
Form roller for pipe forming welder
摘要
The machine has an upper convex and lower concave roller to form a pipe in successive steps. The rollers (1,2) have a mirror-symmetrical base contour. The upper has a center convexity and outer concave sections having the same radius.
申请公布号
DE19803776(C1)
申请公布日期
1999.05.27
申请号
DE19981003776
申请日期
1998.01.26
申请人
MANNESMANN AG, 40213 DUESSELDORF, DE
发明人
KAMPS, JOHANNES, DIPL.-ING., 41844 WEGBERG, DE;THIEVEN, PETER, DIPL.-ING., 52064 AACHEN, DE
分类号
B21C37/083;B23K20/02;(IPC1-7):B23K31/02;B21D5/12;B21C37/06;B21C37/08
主分类号
B21C37/083
代理机构
代理人
主权项
地址
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