我国第一台10千巴液压三轴容器的柱塞密封是由聚四氟乙烯密封环和铍青铜三角垫来施行的。在设计时,要求这种密封结构对柱塞段动时的摩擦阻力不大于压力机工作吨位的5—10%。容器制成后,通过试车改进,在验收时柱塞的摩擦阻力为压力机工作吨位的5%左右。当三轴容器工作时,柱塞传递压力机的轴 China’s first 10-kPa hydraulic three-axis container plunger seal is made of PTFE seal ring and beryllium bronze triangle pad to be implemented. In design, it is required that the frictional resistance of the sealing structure to the plunger segment during the moving is no more than 5-10% of the working tonnage of the press. After the container is made, it is improved through trial run, and the frictional resistance of the plunger is about 5% of the tonnage of the press during acceptance. When the triaxial container is in operation, the plunger transfers the press shaft