公开(公告)号：JP2001259763A

公开(公告)日：2001-09-25

申请号：JP2001039644

申请日：2001-02-16

Applicant: SMS DEMAG AG

Inventor： KOLBE MANFRED ,  TOPUTH ARNO ,  HAUSLER KARL HEINZ

IPC: B21D3/14 ,  B21D39/20

Abstract: PROBLEM TO BE SOLVED: To provide a mechanism tube expanding machine capable of reducing wear of relatively moving faces against each other and eliminating a lubricant oil use in these regions. SOLUTION: The mechanical tube expanding machine has a pyramidal polygonal body 2 and segments 3 provided with side faces of the polygonal body, the segments are radially moved by relatively sliding the polygonal body 2 for the segments 3, in the axial direction wear films 5 are arranged between the side faces of the polygonal body 2 and the segments 3.

公开(公告)号：DE10008688C1

公开(公告)日：2001-02-08

申请号：DE10008688

申请日：2000-02-18

Applicant: SMS DEMAG AG

Inventor： KOLBE MANFRED ,  TOPUETH ARNO ,  HAEUSLER KARL HEINZ

IPC: B21D3/14 ,  B21D39/20 ,  B21D39/08 ,  B21C37/30

Abstract: The mechanical pipe expander is a multi-edged pyramid with segments on the mantle surfaces, which are moved radially by an axial movement of the pyramid in relation to them. A lubricant cladding (5) is between the mantle surfaces of the pyramid (2) and the segments (3). The lubricant cladding (5) is a compound carbon fiber material with a polymer matrix containing graphite powder.