浇注型密封圈的制造,是将聚酯合成预聚物经扩链反应成的胶料注入模具中,在一定温度、压力(型腔真空负压)或不加压下硫化成型而得。为保证密封圈的质量和提高生产率,必须合理设计模具。在开始试制12000吨水压机用Φ10～674毫米,承压270公斤/厘米~2 Pouring ring seal manufacturing is polyester prepolymer by chain reaction into the rubber material into the mold, at a certain temperature, pressure (cavity vacuum negative pressure) or without pressure vulcanization molding derived. In order to ensure the quality of the sealing ring and improve the productivity, the mold must be designed rationally. At the beginning of trial production 12000 tons of hydraulic press Φ10 ~ 674 mm, pressure 270 kg / cm ~ 2