活门盘氟塑料热压工艺研究

Research on heat pressing technology of fluorocarbon valve disc

针对活门盘的结构特点和密封要求,全面分析了活门盘的密封机理,得出活门盘密封比压应大于活门所需密封比压,给出了计算公式,并进行了活门盘热压工艺研究。采用该工艺压制的活门盘密封比压满足理论要求,产品通过了试验验证,满足设计要求,并通过了飞行试验考核。

According to the structural features and seal requirements of the valve disc, the seal mechanization of the valve disc is analyzed comprehensively. A conclusion that the specific pressure should exceed the pressure of the medium was obtained. The research on heat pressing technology of the fluorocarbon valve disc was carried out to seek out right parameters. A formula to compute specific pressure of the valve disc is offered in this paper. The seal specific pressure of valve disc made by heat pressing technology can meet the theoretical and design requirements. The product passed the test and flight assessment.