FIELD: machine building.
SUBSTANCE: abrasive grain of the group of corundum, molten corundum, sintered corundum, zircon corundum, silicon carbide, boron carbide, cubic boron nitride, diamond and/or their mixtures, with coating containing binding agent and small-grain non-organic powder, are described. Base of the binding agent consists of aluminium silicate with molar ratio of Al2O3 to SiO2 of 1:2 to 1:20, liquid glass and water. Abrasive grains are wetted with the binding agent in high-efficiency mixer, wetted grains are mixed with small-grain non-organic powder and mixed till uniform distribution of powder on surface of abrasive grains. Curing of the coating is performed at temperature of ≤400°C.
EFFECT: strong adhesion of coating to abrasive grain at low temperatures and improvement of grinding efficiency is provided.
18 cl, 9 tbl, 21 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ABRASIVE GRAIN MIXES, METHOD OF THEIR FABRICATION AND THEIR USE FOR MAKING ABRASIVE MATERIALS | 2009 |
|
RU2468907C1 |
| COATED SOLID PARTICLES | 2009 |
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RU2472834C2 |
| AGGLOMERATE ABRASIVE GRAIN, CONTAINING INCLUDED HOLLOW MICROSPHERES | 2013 |
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RU2566791C1 |
| AGGLOMERATE ABRASIVE GRAIN | 2018 |
|
RU2792805C2 |
| ABRASIVE GRAIN BASED ON MOLTEN SPHERICAL CORUNDUM | 2007 |
|
RU2434039C2 |
| ABRASIVE ARTICLES WHICH INCORPORATE FIXING COATING APPLIED BY LAMINATION | 1994 |
|
RU2125510C1 |
| METHOD FOR MAKING ABRASIVE ARTICLE | 1999 |
|
RU2203797C2 |
| ABRASIVE GRAIN BASED ON ZIRCONIA ALUMINA | 2010 |
|
RU2523473C1 |
| METHOD FOR PRODUCTION OF ABRASIVE MATERIAL | 1994 |
|
RU2114888C1 |
| BAND WITH ABRASIVE COATING | 1992 |
|
RU2116186C1 |
