Method of impregnating porous workpieces
US6699410B2 · kind B2 · utility
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3References
13Claims
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Assignee
Inventor
Key dates
| Filing date | May 31, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In order to impregnate a porous workpiece with a liquid impregnating agent, the pre-manufactured workpiece is arranged in an injection mould or diecasting mould and the liquid impregnating agent is introduced into the mould with the aid of a commercially available injection moulding or diecast moulding apparatus. To limit the need for post impregnation cleaning and/or shaping, the mould cavity is configured to closely fit the shape of the pre-manufactured workpiece. The impregnating agent may be a natural or synthetic lubricant, a plastic or, more commonly, a molten metal or metal alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.