Fully universal rolling process for H or I-beam type metal sections
US4637241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 1984 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Mar 21, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B1/46
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rough beam (4) is formed on a universal stand (11), and a two high stand starting with an initial section (1) of rectangular or trapezoidal cross-section, in two series of passes in the universal stand. During the first series reduction of the web forming portion is effected by horizontal rolls (5, 6) acting on the central portion of the initial section (1) and during the second series of passes both the horizontal rolls (5, 6) and the vertical rolls (7, 8) of the universal stand (11) simultaneously reduce the web and flanges, respectively. The rough-beam being formed during the second series of passes is also rolled in the open grooves of a two high stand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.