| 摘要 |
PURPOSE:To improve the wear-resistant performance by forming an aluminum alloy cylinder liner with a material having initially crystallized Si particles of 40-80mm. particle size and eutectic Si particles of 10mm. or less particle size which occupy 60% of the particle area. CONSTITUTION:A cylinder liner is formed with an aluminum alloy in which Si constituent is 16-30wt%, Cu 0.3-7.0%, and the remainder is practically aluminum, and initially crystallized Si particles of 40-80mm. particle size and eutectic Si particles of 10mm. or less particle size occupy more than 60% of the particle area. Owing to this, the material can possess an excellent wear-resistant performance as well as mechanical strength. |
