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尺寸较小的GCr15阀套试验件随炉真空淬火后,检测了炉内不同位置处理阀套的硬度均匀性和尺寸变形量。结果表明,阀套硬度均匀且变形量较小,为今后该类零件淬火前的加工预留量提供了数据参考。
Smaller GCr15 valve sleeve test pieces were vacuum hardened with a furnace and tested for hardness uniformity and dimensional deformation of the valve sleeve at different positions in the furnace. The results show that the hardness of the valve sleeve is uniform and the deformation is small, which provides a data reference for the processing reserve of such parts before quenching in the future.