塑料制品压制成型分为热固材料的成型和热塑性材料的成型。如电器行业酚醛塑料。如日用品行业聚四氟乙烯塑料，改变控制程序对汽车行业摩擦材料也可以进行压制，如刹车片、本系列塑料制品液压材料机采用插装阀集成系统，电器采用plc可编程控制，压制动作一般为滑块快下，减速下行，慢速压制成型（有时需排气）保压、泄压、滑块微回，快回*限，顶出缸快顶，顶出缸退回、手工取料并加料。压机的动作构成有高低压组合泵，在快速下滑时则自重下行充油补油实现，因而可大大降低快速阶段所需功率，在快速预压制时，高低压泵均参与工作，在压力达到一定值或压制到某一设定位置后，低压泵泄压，而只有高压泵工作。这样形成低速压制，便于材料充分流动及气体排出模腔。本系列液压主要元件的配置的*，大大提高了产品的可靠性。如液压件采用北京液压件厂产品，热电偶也为产品。本公司可根据用户的要求制造加宽加高的压机。

press forming of plastic products can be classified into thermosetting material forming and thermoplastic material forming. for example, bakelite of electric appliance industry. and also polyfluortetra ethylene plastic in consumer goods industry. you can change the controlling program to carry out press forming to the friction materials. for example, brake pad. this series of plastic products hydr-opress material machine uses integrated system of in-serting mounting valve. the electric appliance uses plc programmable controller. the pressing action can be separated into rapid down of sliding block, descending with reduced speed,slow press forming pressure maintenance (sometimes air discharging is needed),pressure releasing, slow return of sliding block, rapid retuming to upper limit, rapid ejecting of ejection cylinder,returning of ejection cylinder,manual material taking and adding ,pressing machine has high and low pressure combination pump.in case of rapid ascending, oil adding can be realized by descending with self weight. through this, the power needed in the rapid stage is greatly decreased. in case of rapid pre-pressing forming, the high and low pressure pumps both take part in the action.when the pressure reaches a definite value or pressed to a definite position, the low pressure pump releases the pressure and only high pressure pump works. thus forms the low speed press forming and it sconvenient for the full flow of the material and discharge of gas out of the cavity. the main units of this series of hydr-opress has excellent configuration and this greatly increased the reliability of the products.for example hydraulic pressure parts use the products made by beijing hydraulic pressure part factory, the thermal couple is also famous brand produt. our company can increase the width and height of the special press according to the requirement of the user.