Method permitting the increase of operations of cold pilger mills and an apparatus for the embodiment of this method
US4658617A · kind A · utility
10Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Jan 2, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B21/065
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The method consists of a cold pilger mill to effect a recoil movement of the chuck upstream followed by a return to its original position, at least once per rolling cycle. The period during which the mandrel is withdrawn with respect to its rolling position is used advantageously for example to carry out the rotation of the mandrel and/or to cause a lubricant under pressure to circulate between the mandrel and the pipe. The method is applied particularly to the rolling of pipes with a large section, with high reduction rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.