Cooling phase 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% of the plastic mold factory, 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 the experimental precision plastic factory, the heat from the melt into the mold is generally divided into two parts distribution, some 5% by radiation and convection pass into the atmosphere, and the remaining 95% from the melt transferred to the mold. Plastic in the mold due to cooling water pipes, heat from the mold cavity plastic mold spread by thermal conduction through the cooling water pipe, and then was taken away by thermal convection cooling liquid. The heat of the cooling water is not a small number continue conducting Fukunaga plastics factory in the mold until after contact with the outside world escapes to the air. Factors affecting the product cooling rate are: plastics design. Mainly plastic wall thickness. Product thickness, the longer cooling time. In general, the cooling time is about proportional to the square of plastic thickness, or the maximum flow channel power is proportional to the diameter of 1.6. That doubles the thickness of plastic products plastics factory, Cooldown increased 4-fold. Mold materials and cooling. Mold materials, including a large mold core, cavity material and mold material impact on the cooling rate. The higher thermal conductivity of mold material, the better the heat transfer out of the effect from the plastic unit of time, the cooling time is shorter. Cooling water pipe configuration. Cooling water closer to the cavity, the greater the diameter, the greater the number, the better the cooling effect, the shorter cooling time. Coolant flow. Cooling water flow greater (typically to achieve turbulence better), thermal convection cooling water to remove heat effect is better. Nature of coolant. Viscosity and thermal conductivity of the coolant also affect the heat transfer effect of the mold. The lower the cooling fluid viscosity, the higher the thermal conductivity, the lower the temperature, the better the cooling effect. Plastic selection. Plastic means plastic to measure the direction of the heat from the hot cold places conduction velocity. The higher thermal conductivity of plastics, the better is the heat conduction effect, or plastic is lower than the heat, the temperature is easy to change, and therefore easy dissipation of heat, thermal conductivity better results, the required cooling time is shorter. Machining parameters. Material temperature, the higher the mold temperature, the lower the ejection temperature, the longer the cooling time. Plastic Factory Processing | Plastic Factory | integration into a plastic mold factory from Shenzhen harmony Technology Limited. Shenzhen harmony Technology Limited (www.rhctech.net) strong, credible, in Shenzhen of plastic products industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead the integration of innovative ideas into a plastic mold manufacturers and you hand in hand into the brilliant, for a better future!