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通过试验测试了阀杆柔性石墨与聚四氟乙烯复合填料的的低温性能。介绍了复合填料的装填方式及防止填料挤入阀杆孔弧形挡圈的使用。
The low temperature performance of valve stem flexible graphite and polytetrafluorethylene composite packing was tested through experiments. This paper introduces the packing method of composite packing and the use of preventing the packing from squeezing into the arc retaining ring of the stem hole.