Cooling stage charger precision molds in the injection molding die design of the cooling system is very important. This is because the molded plastic only cooled and solidified to a certain rigidity, after the release in order to avoid plastic deformation by external force due. Since the total molding cycle cooling time from about 70% to 80%, so well-designed cooling system can significantly shorten the molding time and increase injection productivity and reduce costs. Poorly designed cooling system will lengthen the molding time and increase costs; more will be further cause uneven cooling warpage of plastic products. According to experiments, the heat from the melt into the mold in two parts substantially circulated, a portion of 5% by radiation, convection pass into the atmosphere, and the remaining 95% from the melt into the mold conduction. Plastic in the mold due to cooling pipe production charger shell mold by thermal conduction of heat transmitted from the mold cavity cooling water pipes by plastic, and then taken away by thermal convection cooling liquid. Few are not the cooling water continues to heat conduction in the mold until after contact with the outside world escapes to the air. Extrusion Extrusion is the use of a screw extrusion press-rotating continuously plasticized good plastic squeeze mold charger plastic shell when processing a shaped die through give and conform to the shape of the die A process of plastic profiles. Extruded plastic products accounted for about 30%, mainly for certain cross-section, the length of a large variety of plastic profiles, such as plastic pipe, plate, bar, plate, strip, sheet and sections complex shaped wood. It is characterized by continuous molding, high productivity, the mold structure is simple, low cost, well organized and so on. Fluorine plastic, almost all thermoplastics can be extruded, some thermosetting plastics can be extruded. Right is a schematic screw extrusion molding, is fed from the hopper a granular plastic auger chamber, and then sent to the heating zone by the rotation of the screw is melted and compressed; under the action of the spiral force, forced through a shaped extrusion die, to give consistent cross-sectional shape with the die profiles; conveyor belt after it falls with a jet of air or water cooling hardens to give a cured plastic article. Chargers mold production, integration into a plastic mold factory (certification), Sha Tau Kok integration into the charger by the Shenzhen Municipal Science and Technology Limited. Shenzhen harmony Technology Limited (www.rhctech.net) Guangdong Shenzhen, plastic products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. The integration into a plastic mold factory leadership with the staff warmly welcome all inquiries negotiations to create harmony into a plastic mold manufacturers a better future.