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本文运用铸铁凝固规律,对单体铸造活塞环的低倍断口特征进行了探讨,并与一机部《汽车摩托车单体铸造活塞环专业标准(初稿》类比,初步得出了低倍断口特征与微观石墨类别间的对应关系.文中提出相应的低倍断口类别图,作为一种炉前快速判据,使炉前铁水成份及孕育处理能得以及时的调整.本法对消除炉前误判,提高环的内在质量,具有一定的实际意义.
In this paper, the cast-iron solidification rule is used to study the characteristics of low magnification fracture of the single-casting piston ring. In the same way, with the analogy of the professional standard (first draft) of single-casting piston ring for automobile and motorcycle, And the corresponding relationship between microcosmic graphite categories.According to the corresponding classification diagram of low times fracture as a kind of fast criterion in front of furnace, the hot metal composition and inoculation can be adjusted in time.This method can eliminate misjudgment , To improve the inner quality of the ring, has a certain practical significance.