Hollow spherical articles |
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| 申请号 | US3674461D | 申请日 | 1970-05-21 | 公开(公告)号 | US3674461A | 公开(公告)日 | 1972-07-04 |
| 申请人 | CANADIAN PATENTS DEV; | 发明人 | FARNAND JOSEPH REDMOND; PUDDINGTON IRA EDWIN; | ||||
| 摘要 | HOLLOW ARTICLES FREE OF HOLES OR SEAMS OF A METAL SELECTED FROM ALUMINUM, MAGNESIUM, BORON, AND BERYLLIUM ARE PROVIDED BY COATING A SHAPED CORE OF A MATERIAL TRANSFORMABLE DIRECTLY INTO GAS WITH FLAKES OR PARTICLES OF THE METAL, SLOWLY REMOVING THE CORE MATERIAL THROUGH THE PARTICULATE COATING IN GASEOUS FORM, AND CONSOLIDATING THE COATING (E.G. BY FUSING OR SINTERING). COATINGS OF THESE METALS CANNOT BE SATISFACTORILY PREPARED BY REDUCTION OF THEIR SALTS IN SOLUTION. SMALL SPHERES OF A DIAMETER LESS THAN 0.2 INCH (ESPECIALLY 0.005 TO 0.06 INCH) ARE OF PARTICULAR INTEREST. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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