Method of cladding a steel cylindrical core
US4760232A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1987 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Sep 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49554
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of cladding a steel roll, such as a felt roll with a non-corrosive shell, ensures that the shell is tightly fitted to the core and is free to expand and contract on the core to avoid distortion problems. The method comprises the steps of preparing two stainless steel shells each having a length equivalent to the circumference of the core plus a predetermined extra, wrapping the shells about the core, side by side, leaving a predetermined circumferential gap between the shells, heating and clamping the shells tightly around the core until the longitudinal joints each attain a predetermined longitudinal gap, welding the longitudinal gaps, and circumferential gap between the shells while the shells are hot, ensuring the sheets are welded together and not welded to the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.