| 摘要 |
<p>A method of manufacturing a cylinder block comprising one or more cylinders, the or each cylinder being adapted to receive a piston therein, the method comprising making a cylinder liner by squeeze casting, in an aluminium-silicon alloy produced from a melt consisting essentially of the following composition by weight: Silicon 14 % to 16 %; Copper 1.9 % to 2.2 %; Nickel 1.0 % to 1.4 %; Magnesium 0.4 % to 0.55 %; Iron 0.6 % to 1.0 %; Manganese 0.3 % to 0.6 %; Silicon Modifier 0.02 % to 0.1 %, with the balance being aluminium and any avoidable impurities, the cylinder liner having an essentially eutectic microstructure containing not more than 10 % primary alpha-aluminium dendrites and being substantially free from intermetallic particles exceeding 10 ν in diameter, placing the cylinder block in a mould and casting therearound an aluminium alloy to provide a main cylinder block body with the cylinder liner entrapped therein.</p> |
