一种活塞环组制造技术

本实用新型专利技术公开了一种活塞环组，包括自上而下依次安装在活塞环槽中的第一道气环、第二道气环和第三道油环，两个气环上均设有直切口；在第一道气环的外圆周部表面设有氮化层，形成具有较高表面硬度的第一道气环，使其具有优异的耐磨性能；在第二道气环的外圆周部表面设有液体喷砂层，其余表面设有磷化膜层，能提高第二道气环表面的光洁度，同时也能够提高表面的强度，使其具有优异的耐磨性能；在第三道油环的外圆周部表面设有镀铬层，其余表面设有磷化膜层，在油环的外圆周部表面设置镀铬层，镀铬层硬度很高，摩擦系数很小，显著提高活塞环的耐磨性，而且镀铬层具有良好的贮油结构。（*该技术在2021年保护过期，可自由使用*）

Piston ring assembly

The utility model discloses a piston ring group, including from top to bottom are arranged in the piston ring groove in the first air ring, second gas rings and third oil rings, two gas rings are arranged on the straight incision; nitride layer is arranged on the surface of the outer circumference of the top ring, forming a first air ring with high surface the hardness, which has excellent abrasion resistance; sandblasting surface layer is provided on an outer periphery of second air ring, the rest is arranged on the surface of the phosphating film, second gas rings can improve the surface finish, but also can improve the strength of the surface, which has excellent wear resistance; chrome plated layer is arranged on the surface of the outer circumference third oil ring, the rest is arranged on the surface of the phosphating film, chrome plated layer is arranged on the outer circumferential surface of the oil ring, chrome plating layer with high hardness, friction coefficient is small, significantly improve the piston The wear resistance of the ring is good, and the chromium plating layer has good oil storage structure.

【技术实现步骤摘要】

【技术保护点】
１．一种活塞环组，包括自上而下依次安装在活塞环槽中的第一道气环（１）、第二道气环（２）和第三道油环（３），两个气环（１、２）上均设有直切口，其特征在于：在所述气环（１、２）和油环（３）的外圆周部表面设有耐磨保护层。

【技术特征摘要】

【专利技术属性】
技术研发人员：徐泽军，
申请(专利权)人：锐展铜陵科技有限公司，
类型：实用新型
国别省市：34