Aluminum alloy for cylinder head and method of manufacturing the same
US10501828B2 · kind B2 · utility
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Key dates
| Filing date | Jun 30, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F1/24
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy for a cylinder head in a vehicle engine includes 2 to 3% of Si, 2.5 to 3% of Cu, 0.01% or less (excluding 0%) of Zn, 0.15% or less (excluding 0%) of Fe, 0.02% or less (excluding 0%) of Mn, 0.1 to 0.3% of Mg, 0.01% or less (excluding 0%) of Ni, 0.02% or less (excluding 0%) of Ti, 0.1% or less (excluding 0%) of Zr, the balance of Al, and inevitable impurities, wherein an AlCuMgSi-based crystal is formed in an amount ranging from 0.3 to 0.9% and an Al2Cu-based precipitate is formed in an amount ranging from 3.3 to 4.0%, wherein percentage (%) is based on weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.