塑料制品壓制成型分為熱固材料的成型和熱塑性材料的成型。如電器行業(yè)酚醛塑料。如日用品行業(yè)聚四氟乙烯塑料，改變控制程序對汽車行業(yè)摩擦材料也可以進行壓制，如剎車片、本系列塑料制品液壓材料機采用插裝閥集成系統(tǒng)，電器采用plc可編程控制，壓制動作一般為滑塊快下，減速下行，慢速壓制成型（有時需排氣）保壓、泄壓、滑塊微回，快回*限，頂出缸快頂，頂出缸退回、手工取料并加料。壓機的動作構成有高低壓組合泵，在快速下滑時則自重下行充油補油實現(xiàn)，因而可大大降低快速階段所需功率，在快速預壓制時，高低壓泵均參與工作，在壓力達到一定值或壓制到某一設定位置后，低壓泵泄壓，而只有高壓泵工作。這樣形成低速壓制，便于材料充分流動及氣體排出模腔。本系列液壓主要元件的配置的*，大大提高了產(chǎn)品的可靠性。如液壓件采用北京液壓件廠產(chǎn)品，熱電偶也為產(chǎn)品。本公司可根據(jù)用戶的要求制造加寬加高的壓機。

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.