Method for making machinable abrasive greenware
US5135545A · kind A · utility
4Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1991 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Mar 22, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D18/0009
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention employs poly(ethyloxazoline) as a temporary binder and lubricant during the preparation of greenware articles. According to the present invention, molten poly(ethyloxazoline) promotes the compressibility of the powder used to form the greenware article, thus improving the density and strength of both the greenware and the abrasive article. The molten poly(ethyloxazoline) acts as a lubricant to permit a more efficient grain rearrangement under applied pressure and thereby increases the average density of the greenware article by 6 to 8 percent as compared to standard cold pressing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.