GB649003A - Improvements in abrasive articles and in the manufacture thereof - Google Patents
Improvements in abrasive articles and in the manufacture thereofInfo
- Publication number
- GB649003A GB649003A GB1027248A GB1027248A GB649003A GB 649003 A GB649003 A GB 649003A GB 1027248 A GB1027248 A GB 1027248A GB 1027248 A GB1027248 A GB 1027248A GB 649003 A GB649003 A GB 649003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mineral
- borofluoride
- diamond
- per cent
- crystalline
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
- B24D3/02—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent
- B24D3/04—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic
Abstract
An abrading composition comprises a homogeneous mix of a crystalline mineral and potassium or sodium borofluoride, present as 6 to 12 per cent by weight of the mineral. Additional abrasives, 5 to 25 per cent by weight of the mineral, which may be present are diamond, or a mixture of diamond (may be as boart) boron carbide and silicon carbide. Specified minerals are garnet, beryl, topaz, corundum, agate, granite, andalusite, sillimanite, or fused alumina.ALSO:An abrasive article comprises a homogeneous mixture of a crystalline abrasive mineral and sodium or potassium borofluoride. It is made by mixing the previously-crushed mineral with the borofluoride, placing the mix in a mould, applying cold pressure, heating above the melting-point of the borofluoride but below 600 DEG C., repressing and cooling. As crystalline minerals are specified garnet, beryl, topaz, corundum, agate, granite, andalusite, sillimanite, or fused alumina. The proportion of borofluoride varies between 6 and 12 per cent by weight of the mineral. An additional abrasive, 5 to 25 per cent of the mineral, may also be present-such additions specified are diamond, or a mixture of diamond (may be as boart), boron carbide and silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027248A GB649003A (en) | 1948-04-13 | 1948-04-13 | Improvements in abrasive articles and in the manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1027248A GB649003A (en) | 1948-04-13 | 1948-04-13 | Improvements in abrasive articles and in the manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB649003A true GB649003A (en) | 1951-01-17 |
Family
ID=9964790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1027248A Expired GB649003A (en) | 1948-04-13 | 1948-04-13 | Improvements in abrasive articles and in the manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB649003A (en) |
-
1948
- 1948-04-13 GB GB1027248A patent/GB649003A/en not_active Expired
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