Releasing lubricant for use in forging and extrusion processes
US4532055A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 4, 1983 |
| Grant date | Jul 30, 1985 |
| Priority date | — |
| Expiry date | Oct 4, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/247
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a releasing lubricant for use in forging and extrusion processes. In one embodiment, the lubricant comprises a mixture of: PA0 (a) at least one compound selected from the group consisting of phosphoric acid and its salts, PA0 (b) at least one compound selected from the group consisting of boric acid and its salts, PA0 (c) at least one compound selected from the group consisting of alkali metal carbonates, nitrates, sulfates and hydroxides, and PA0 (d) a phyllosilicate, wherein the amounts of the compounds (a) to (c) (as oxides) are: 14 to 55 molar % of P.sub.2 O.sub.5, 0 to 80 molar % of B.sub.2 O.sub.3 and 30 to 80 molar % of M.sub.2 O (M being an alkali metal) and the total amount of these compounds is 91 to 99.5 wt. % or 0.5 to 39 wt. % based on the solid. In another embodiment, the amounts of the compounds (a) to (c) (as oxides) are: 14 to 39.5 molar % of P.sub.2 O.sub.5, 0 to 80 molar % of B.sub.2 O.sub.3 and 30 to 80 molar % of M.sub.2 O (M being an alkali metal) and the total amount of these compounds is more than 39 wt. % but less than 91 wt. % based on the solid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.