GB1248792A - Sintered abrasive grain and process for making same - Google Patents
Sintered abrasive grain and process for making sameInfo
- Publication number
- GB1248792A GB1248792A GB6033668A GB6033668A GB1248792A GB 1248792 A GB1248792 A GB 1248792A GB 6033668 A GB6033668 A GB 6033668A GB 6033668 A GB6033668 A GB 6033668A GB 1248792 A GB1248792 A GB 1248792A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bauxite
- grains
- chromium oxide
- sintered abrasive
- dec
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/14—Anti-slip materials; Abrasives
- C09K3/1409—Abrasive particles per se
- C09K3/1418—Abrasive particles per se obtained by division of a mass agglomerated by sintering
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
1,248,792. Alumina-chromia grains. CARBORUNDUM CO. 19 Dec., 1968 [21 Dec., 1967], No. 60336/68. Heading C1J. [Also in Division C4] Sintered abrasive grains comprise finely divided bauxite and 2-20 wt. per cent chromium oxide. They are made from a mixture of bauxite, chromium oxide, a temporary binder, e.g. bentonite, starch, dextrine or methyl cellulose, and water, by forming into grains each comprising a plurality of particles of bauxite and chromium oxide, drying the grains and sintering at 1400-1700‹ C. in a neutral atmosphere. The bauxite suitably has an average particle size of 2-4 microns and the chromium one of 2 microns. The mixture is extruded into rods, e.g. of diameter 0À07 inch, and cut into cylinders of length/diameter ratio 2: 1. If an organic binder is included it is burnt out at 700-1100‹ C. before sintering.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69242767A | 1967-12-21 | 1967-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1248792A true GB1248792A (en) | 1971-10-06 |
Family
ID=24780538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6033668A Expired GB1248792A (en) | 1967-12-21 | 1968-12-19 | Sintered abrasive grain and process for making same |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE725869A (en) |
| DE (1) | DE1815911A1 (en) |
| FR (1) | FR1599952A (en) |
| GB (1) | GB1248792A (en) |
| NL (1) | NL6818429A (en) |
| NO (1) | NO125626B (en) |
-
1968
- 1968-12-19 GB GB6033668A patent/GB1248792A/en not_active Expired
- 1968-12-20 DE DE19681815911 patent/DE1815911A1/en active Pending
- 1968-12-20 BE BE725869D patent/BE725869A/xx unknown
- 1968-12-20 FR FR1599952D patent/FR1599952A/fr not_active Expired
- 1968-12-20 NO NO512268A patent/NO125626B/no unknown
- 1968-12-20 NL NL6818429A patent/NL6818429A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1599952A (en) | 1970-07-20 |
| NO125626B (en) | 1972-10-09 |
| BE725869A (en) | 1969-06-20 |
| DE1815911A1 (en) | 1969-07-24 |
| NL6818429A (en) | 1969-06-24 |
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