Title:
VITRIFIED BONDED ABRASIVE TOOLS
Document Type and Number:
WIPO Patent Application WO2001070463
Kind Code:
A3
Abstract:
The present invention provides a vitrified-bonded abrasive tool wherein the abrasive grit portion comprises a thermally sensitive abrasive grain, such as sintered sol gel microcrystalline alpha alumina abrasive grain or superabrasive grain, and wherein the vitrified bond may be matured by firing at a temperature of about 700 to 1,100 DEG C. The invention preferably is carried out with sintered sol gel microcrystalline alpha alumina abrasive grain and a phosphorous oxide-containing, alkaliborosilicate vitrified bond composition. In one embodiment, during firing at about 700 to 1,100 DEG C, the vitrified bond of the invention comprises at least two immiscible, amorphous phases.
Inventors:
CARMAN LEE A (US)
HAVENS IRVIN F (US)
KING WESLEY A (US)
HAVENS IRVIN F (US)
KING WESLEY A (US)
Application Number:
PCT/US2001/009347
Publication Date:
March 21, 2002
Filing Date:
March 23, 2001
Export Citation:
Assignee:
SAINT GOBAIN ABRASIVES INC (US)
CARMAN LEE A (US)
HAVENS IRVIN F (US)
KING WESLEY A (US)
CARMAN LEE A (US)
HAVENS IRVIN F (US)
KING WESLEY A (US)
International Classes:
B24D3/14; B24D3/00; B24D3/02; B24D3/06; B24D18/00; (IPC1-7): B24D3/02; B24D3/04; B24D3/14
Foreign References:
| US5863308A | 1999-01-26 |
Other References:
See also references of EP 1278614A4
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