The main process parameters of injection molded parts include: 1. melt temperature: melt temperature of the melt flow properties play a major role, since there is no specific melting plastic, the so-called melting temperature segment of injection molded parts wholesale a molten state, the plastic molecules The structure and composition of different chain, thus affecting their mobility is also different, rigid molecular chains affected by temperature than the obvious, such as PC, PPS, etc., and flexible molecular chains such as: PA, PP, PE and other mobility by changing the temperature and obvious, it should be adjusted according to different materials and reasonable injection temperature. 2. Barrel temperature: melt temperature is very important, plunger cylinder temperature used only guidance. Melt temperature can measure or method to measure the use of air jet nozzle in place. Plunger cylinder temperature setting depends on melt temperature, screw speed, back pressure, quantity and injection molding cycle shot. If you do not have experience in processing a particular level of plastics, start from the lowest setting. In order to facilitate control, radio Liaogang divided area, but not all are set to the same temperature. If the operation or operations for a long time at high temperature, the temperature of the first zone is set to place a lower value, this will prevent premature melting plastic and diversion. Before the start of injection molded parts designed to ensure that the hydraulic oil, hopper closure, mold and plunger cylinders are at the correct temperature. 3. Injection pressure: Melt required to overcome the resistance to advance, direct impact on product size, weight, and deformation, etc., various plastic products of different required injection pressure, for as PA, PP and other materials, to increase the pressure will make it flow significantly improved, the size of the injection pressure determine the density of the product, i.e. the appearance of the gloss. It has no fixed value, but more difficult mold filling, injection pressure increases. 4. Mold temperature: Some plastic materials due to high crystallization temperature, the crystallization speed is slow, requiring a higher mold temperature, somewhat due to the need to control the size and deformation, or release of, or to a lower temperature a higher temperature, such as a PC general require more than 60 degrees, while the PPS in order to achieve a better appearance and improved flowability, mold temperature may need more than 160 degrees, and the die temperature to improve the product appearance, deformation, size, plastic mold aspects have not arrived in the estimated effects. 5. Deformation: After the product produced or placed after a period of time warping partial or total produced. The reason why the product will be deformed, if you exclude the top reasons for the imbalance output hardware injection molded parts, the overwhelming majority of the existence of internal stress due to internal reasons, it's very serious cause will lead to product cracking. The solution: from the design side, try to keep the product evenly throughout the thick plastic, the adapter at the use of the largest possible angle R, product structure allowed the case to Habitat arranged symmetrically as possible, to minimize vias product design When all parts of the structure and the structure is quite different asymmetric case, as far as possible to avoid the use of materials plus GF. But deformed injection products, has finalized the general design, mold has been opened, as a method to improve the follow-up only from conditioners aspects to consider, we can proceed from the following aspects: A), while ensuring product structure Under the former embankment strength and appearance can be fit to reduce the injection temperature. B), holding pressure as small as possible, dwell time as short as possible. C), before and after different mold cooling water system, adjust the temperature according to the deformation around the mold die situation. D), the cooling time longer appropriate. E), creating a shaped jig. F), the product was slowly cooled at a certain temperature (the vast majority may be cooled at a constant temperature of hot water). G), annealing treatment. H), for defective products has been deformed, or customer returns of defective products, great value higher if the product can be used overcorrection holder holding the product and then the product is placed slightly below ambient temperature Tg 2 -4 minutes (or adjust the temperature of high-temperature direct blow duct products deformed part), which can make the product deformation recovery. Metal injection molded parts, Chen Feng, `optimal hardware quality and lowest price. (Certified), injection molded parts provided by the Dongguan City, Chen Feng Hardware Products Co. Chen Feng, Dongguan City Hardware Products Co., Ltd. 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