【摘要】 用国产标准型硅酸铝纤维作增强体，利用真空过滤成型法制成纤维预制体，采用液态模锻制成局部增强第一道环槽的内燃机活塞。所得复合材料力学性能比ZL109铝合金有较大提高，其中耐磨性增加最为显著。复合材料活塞的主要性能满足内燃机活塞性能标准。更多还原

【Abstract】 With the squeeze-casting technology,reinforced aluminium pistons are realized with fiber preform on the first ring groove. The fiber preform made if domestic standard type of alumina-silica fiber is produced by the process of vacuum-filtration formation. It shows that the composite reveals distinctly higher mechanical properties and much better wear-resistance as compared with the ZL109 alloy. The postons made of the above composite reach the piston standard for internal combustion engines.更多还原