Abrasive Disc. (Metalcasting Supplies).
The TwinFiber Type 29 flap disc from Norton Abrasives Norton Abrasives of Worcester, Massachusetts is the world's largest manufacturer and supplier of abrasives for commercial applications, household, and automotive refinishing usage. In 1990 it was purchased by Saint-Gobain of France. External links
can be used
to grind stainless and carbon steels. The disc combines ceramic
seeded-gel and zirconia alumina Zirconia alumina is commonly-used as a sand-blasting media. It is typically used as an abrasive in casting and foundry processes. Zirconia alumina is a mixture of zirconium oxide and aluminum oxide. See also
- Zirconia Toughened Alumina
abrasives onto a Y-weight cotton
backing. The combination of these two abrasives creates a grinding disc
that works with less pressure and lasts longer than single abrasive
discs. Using less pressure extends the disc life and lowers total
grinding cost. The disc's angled face and conical conical /con·i·cal/ (kon´i-k'l) cone-shaped.
con·i·cal or con·ic
adj.
Of, relating to, or shaped like a cone. shape maximizes
contact with the casting surface and allows operators to grind at a
10[degrees] angle rather than the normal 15[degrees] angle. This smaller
grinding angle reduces the chance of gouging Gouging can be: - The action of cutting or scooping with a gouge
- Price gouging
- Eye gouging or Fish-hooking in violent altercations or combat sports.
and uses more of the
disc's abrasive surface. The disc is available in 4.5 and 7-in.
diameters with quick mount hubs.
Norton Abrasives
Circle No. 004 on last page.
COPYRIGHT 2001 American Foundry Society, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2001, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.
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