公开(公告)号：US08141615B1

公开(公告)日：2012-03-27

申请号：US12545095

申请日：2009-08-21

申请人： William A. Ferrando ,  Catherine R. Wong

发明人： William A. Ferrando ,  Catherine R. Wong

IPC分类号： B22D19/14 ,  B22D13/00 ,  F02F1/00

CPC分类号： F02F1/004 ,  B22D13/00 ,  B22D13/102

摘要： A method has been found for centrifugal casting engine cylinders. A mold is charged with molten aluminum alloy and particulate silicon monoxide having an average size of 0.01 mm to 0.04 mm. The mold is rotated at a velocity and period of time to distribute the particulate silicon monoxide on an inner cylinder surface. The mold is allowed to cool until the aluminum alloy solidifies. A casting is demolded characterized in a uniform inner cylinder surface of the particulate silicon monoxide in an amount of 25 volume % and thickness 1 to 5 millimeters. The engine cylinders are distinguished in resistance to wear. Cylinder liners show no appreciable wear for over 100,000 miles of use.

摘要翻译： 已经发现用于离心铸造发动机气缸的方法。 在模具中装入平均尺寸为0.01mm至0.04mm的熔融铝合金和颗粒状一氧化硅。 模具以一定速度和时间旋转，以将颗粒状一氧化硅分散在内筒表面上。 使模具冷却至铝合金固化。 铸件脱模，其特征在于粒状一氧化硅的均匀内筒表面的量为25体积％，厚度为1至5毫米。 发动机气缸具有耐磨性。 气缸衬套在超过100,000英里的使用中显示出不可观察的磨损。