一、试验的由来我们从化工企业得到应用膨胀石墨盘根的信息后,开始考虑在我们污水泵上能否适用的问题。过去,我们均采用油浸盘根作为泵的密封材料。但这种盘根强度低,摩擦系数大。使用中常有这样的矛盾:填料压盖压得过紧,会造成填料与轴的抱含力增大,从而加剧了填料和泵轴的磨损。影响了密封的 First, the origin of the experiment We get the application of expanded graphite packing information from chemical companies, began to consider whether we can apply the problem of sewage pumps. In the past, we used oil-immersed packing as a pump seal. However, this packing strength is low, the friction coefficient. Often used in such a contradiction: packing gland pressed too tight, will cause the filler and the shaft holding force increases, thus exacerbating the filler and pump shaft wear. Affected the seal