活塞环是发动机的关键部件,也是消费者经常更换的易换件。在当前假冒伪劣产品充斥市场的情况下,正确判断活塞的真假,能起到自我保护的作用。 a.首先看活塞环的弹性 这是判断真假的主要手段。在活塞环的开口处,用手沿轴向上下掰动,距离可拉至1cm左右,松开手后,如果上下弹性一致,可自动回位,为合格的活塞环,否则为 Piston ring is a key component of the engine, but also a frequent replacement for consumers. In the current fake and shoddy products flooding the market situation, the correct judgment of the true and false piston can play a role in self-protection. First look at the elasticity of the piston ring This is the main means to determine the true and false. In the piston ring opening, hand up and down along the axial movement, the distance can be pulled to about 1cm, after releasing the hand, if the upper and lower elastic consistency, can be automatically returned to qualified piston ring, or