本文针对硬质合金刀具切削中硅铝合金活塞槽存在的问题，研制出一种新型人造金刚石切槽刀。

For the problems that exist in cutting medium silicon aluminium alloy piston grooves with carbide tools, this paper presents a new kind of artificial diamond grooving tool.

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在一些实际结构中，一条窄槽切入顶端活塞环的上部，其作用是充当“隔热槽”以减少达到顶端活塞环的热量。

In some application, a narrow groove is cut into the piston above the top ring to serve as a "heat dam" to reduce the amount of heat reaching the top ring.

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安装在环槽中的活塞环有两种类型：压缩环和机油环。

The piston rings carried in the ring groove are of two basic types: compression rings and oil-control ring.

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