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《水泥制品》79年第4期发表了济南水泥制品厂撰写的《滑动胶圈短承口接头型式的研究》一文,介绍了该厂较好地解决了直径600毫米振动挤压管的承口椭圆问题。其中对“橡胶圈密封原理”的分析,尚值商榷。该文认为,内水压p。对胶圈挤压,使胶圈对承插口工作面产生附加应力P_3,如果把橡胶对压强的传递近似地看作液体传递压强,那么便得P_3=P_(?)从而得出只要胶圈预先压缩,即可起到密封作用。胶圈这个预压力对承插口工作而产生的
In the 4th issue of “Cement Products”, published in the 4th issue of “Study on the type of sliding apron short socket joints” written by Jinan Cement Products Factory, it was introduced that the factory better solved the socket of a 600 mm diameter vibration extrusion tube. Ellipse problem. Among them, the analysis of the “rubber ring seal principle” is still invaluable. This article considers the internal water pressure p. Extruding the rubber ring will cause the apron to exert additional stress P_3 on the work surface of the socket. If the pressure of the rubber is approximately regarded as the liquid transmission pressure, then P_3=P_(?) will be obtained so that the apron is Compression can play a sealing role. The pre-pressure of the apron is produced by working on the socket