Low-pressure casting secondary pressure process for aluminum wheel
US10596623B2 · kind B2 · utility
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5Claims
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Key dates
| Filing date | Aug 8, 2018 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Aug 8, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D27/11
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present application discloses a low-pressure casting secondary pressure process for an aluminum wheel. The characteristics of smooth low-pressure filling of molten aluminum alloy and rapid solidification of a rim are preserved, the aluminum alloy at a center sprue is frozen by using a center sprue spreader and a forced water coolling to close a mold cavity, and secondary pressure is implemented to the aluminum wheel by means of down-movement of center extrusion rods, so that the material mechanical properties of an aluminum wheel casting and the production efficiency of the casting process are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.