Hardfacing a surface utilizing a method and apparatus having a chill block
US5942289A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Mar 26, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2101/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A hardfacing apparatus includes a deposition head including a heat source, a hardfacing material source, and a chill block having a chill block surface. The deposition head is positioned at a location so as to deposit a mass of the hardfacing material onto the workpiece surface. The chill block is positioned remote from the deposition head with the chill block surface in a facing-but-spaced-apart relation to the workpiece surface, separated from the workpiece surface by a gap having a dimension between the chill block and the workpiece surface of a standoff distance D.sub.S. Molten hardfacing material is deposited onto the workpiece surface from the deposition head. Simultaneously, the workpiece surface is moved relative to the hardfacing apparatus so that the molten hardfacing material passes into the gap and is molten as it enters the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.