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Changshu injection molding processing factory tell you how to make a good set of plastic mold
by：CSSSLD
2021-01-23
Changshu injection molding processing factory tell you how to make a good set of plastic mold, as we all know, any products have high quality or low quality, the difference between a set of plastic mold is the same reason, some factories can produce some low quality of the mould, but some factory can produce high quality plastic mold, then what's the difference between them is?
a good set of plastic mold is caused by many factors, but each factor can affect the quality of the mould, material selection, processing equipment, processing conditions and processing technology. Here, we mainly from the plastic mold processing technology to analyze which factors influence the quality of plastic mold.
the first point is provided by the injection system of the hydraulic system of plastic mould injection pressure. The pressure of the hydraulic cylinder by injection molding machine screw is passed to the plastic in the solution. Under the pressure, the plastic solution through injection molding machine nozzle into the mold of vertical flow, main and distributary channels. And through the gate, and then into the cavity, the process is the process of adjustment, or what is mould filling process. There is pressure to overcome flow resistance in the process of solution, also can be said to exist in the process of flow resistance need to offset the pressure of injection molding machine, to ensure that the filling process smoothly.
the second factor is the injection temperature, it is an important factors affecting injection pressure. The injection temperature must be controlled within a certain range. If the temperature is too low, the melt will not be plasticizing, it will affect the quality of forming parts, increase the difficulty of the processing, If the temperature is too high, the raw material is easy to decompose. In the actual process of injection molding, injection temperature is usually higher than that of barrel temperature, the higher the value, the higher the injection rate, the performance of the material, the better, up to 30 ℃. This is due to the high heat generated in circulation through the injector.
the last point is plastic mould, injection time, the time needed for the plastic solution filling cavity, not including the mould opening, closing and other auxiliary time. Although the injection time is very short, but will have little impact on the forming cycle, but the adjustment of injection time of gate, runner and the cavity pressure control has a great influence. Reasonable injection time is advantageous to the solution of ideal filling, to improve the surface quality of the product and reduce the size tolerance is of great significance.
a good set of plastic mold is caused by many factors, but each factor can affect the quality of the mould, material selection, processing equipment, processing conditions and processing technology. Here, we mainly from the plastic mold processing technology to analyze which factors influence the quality of plastic mold.
the first point is provided by the injection system of the hydraulic system of plastic mould injection pressure. The pressure of the hydraulic cylinder by injection molding machine screw is passed to the plastic in the solution. Under the pressure, the plastic solution through injection molding machine nozzle into the mold of vertical flow, main and distributary channels. And through the gate, and then into the cavity, the process is the process of adjustment, or what is mould filling process. There is pressure to overcome flow resistance in the process of solution, also can be said to exist in the process of flow resistance need to offset the pressure of injection molding machine, to ensure that the filling process smoothly.
the second factor is the injection temperature, it is an important factors affecting injection pressure. The injection temperature must be controlled within a certain range. If the temperature is too low, the melt will not be plasticizing, it will affect the quality of forming parts, increase the difficulty of the processing, If the temperature is too high, the raw material is easy to decompose. In the actual process of injection molding, injection temperature is usually higher than that of barrel temperature, the higher the value, the higher the injection rate, the performance of the material, the better, up to 30 ℃. This is due to the high heat generated in circulation through the injector.
the last point is plastic mould, injection time, the time needed for the plastic solution filling cavity, not including the mould opening, closing and other auxiliary time. Although the injection time is very short, but will have little impact on the forming cycle, but the adjustment of injection time of gate, runner and the cavity pressure control has a great influence. Reasonable injection time is advantageous to the solution of ideal filling, to improve the surface quality of the product and reduce the size tolerance is of great significance.
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