填充聚丙烯腈复合型浆粕的摩擦/密封复合材料

The properties of the friction/gasket materials reinforced by a polyacrylonitrile compound pulp,in which the polyacrylonitrile short-cut fiber was uniformly wrapped around by the polyacrylonitrile pulp by a special technology was studied.The short-cut fibers provided the mechanical strength and the highly fibrillated pulp entrapped and held other components and also avoided balling for entanglement between the fibers.The results showed that the friction materials reinforced by the compound pulp had smooth surface, excellent friction and wear properties and the gasket materials reinforced by the compound pulp had high strength, good elasticity and heat-resistance.

压缩无石棉密封材料的组成和配方设计

针对无石棉密封材料的国产化要求 ,分析并研究了无石棉密封材料的基本组成 ,对无石棉密封材料的配方进行了正交设计 ,获得了具有较好综合性能和推广应用价值的压缩无石棉密封板材。

DFZ－1型垫片材料密封性能试验装置的研制

本文介绍ＤＦＺ－１型垫片材料密封性能试验装置的设计原理，提出测量液体泄漏速率和气体泄漏速率的试验方法。试验装置符合ＡＳＴＭＦ３７的技术要求。这些试验方法适用于评价和比较室温下垫片材料在不同压缩法兰负荷下的密封特性。