As the saying goes, seven points mould 3 process, how important is the process of injection molding machine
, injection molding in the injection molding process need to control the temperature of the material barrel temperature, nozzle temperature moderate degree of mold, etc. , each temperature changes will affect the product effect: ___________ nitrogen-treated barrel temperature, material barrel temperature is mainly influence plastic flow and cooling.
Each kind of plastic flow with different temperature, the same kind of plastic, due to different sources or brand, the flow temperature and decomposition temperature is little different, this is due to the different average molecular weight and molecular weight distribution, plastic in different type of injection machine of plasticizing process is also different, so choose the cylinder temperature is not the same.
This injection molding machine nozzle temperature, nozzle temperature is usually slightly lower than expected tube maximum temperature, this is to prevent the molten material in straight through the nozzle may salivate phenomenon.
Nozzle temperature also cannot too low, otherwise will cause early setting of melting and the nozzle clogging, or due to early coagulation material into the cavity affect the performance of the products.
Pictures of mold temperature, mold temperature inner performance and apparent impact on the quality of products.
Mold temperature is determined by the size of the plastic, of crystalline products and structure, performance requirements, and other process conditions,
Melting temperature, injection speed and injection pressure, molding cycle, etc. )
In the process of injection molding pressure including plasticizing and injection pressure, and directly affects the quality of plasticizing and plastic products.
Injection molding machine in addition to the above temperature control, also can through the injection velocity, pressure and back pressure to adjust product appearance.
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nissei injection molding machine automatic injection moulding machine is generally used to rubber injection moulding machine.
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