原来气体渗碳炉风扇轴的密封盘根因经受不了高温,经常烧坏而漏气。后来改为迷宫式密封,因为上下迷宫密封盘和上下轴承面形成了4个要浦同心的内外圆面,机械加工很难达到同芯度要求,常发生别劲现象。我们参考了兄弟单位的经验,自行设计了 The original gas carburizing fan shaft seal packing can not stand the high temperature, often burn and leak. Later changed to a labyrinth seal, because the upper and lower labyrinth seal plate and the upper and lower bearing surface to form four concentric inner and outer circular surface, machining difficult to achieve the same core requirements, often do not stand the phenomenon. We made reference to the experience of fraternal units, designed by ourselves