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Molding processing screw back pressure and machine speed setting
by：CSSSLD
2021-02-03
Molding processing screw back pressure and machine speed setting
changshu company die molding processing screw back pressure and machine speed Settings are generally high back pressure can make molten material gain strong shear, low speed also can make plastic inside the barrel to get longer plasticizing time. And thus is more use of the program design of back pressure and rotational speed control. For example: in the screw metering well Mr. Cheng high speed, low back pressure, and then switch to the low speed, high back pressure, and then switch to high back pressure, low speed, and finally the plasticizing under low back pressure, low speed, so that the front of the screw pressure of melting get most of the release, reduce the moment of inertia of the screw, so as to improve the accuracy of the screw metering. Changshu mould company injection processing high back pressure, often cause colorants discoloration occurs; Plastic institutions machine barrel screw mechanical wear and tear; Plastic longer cycle, production efficiency decreases; Nozzle are prone to salivate, regeneration rate of increase; Even with self-locking type nozzle, if the back pressure is higher than the design of the spring closure pressure, also can cause fatigue damage. So, back pressure pressure must adjust it properly.
plastic bending deformation is what reason?
product deformation is mainly thermal contraction deformation caused by imbalance, or due to the product itself under the action of internal stress deformation. Changshu evergreen chang mould technology co. , LTD is mainly engaged in all kinds of plastic mould design, mould making and plastic injection, oil injection, pad printing and other processing services. Manufacture of mold types are widely, including all kinds of household electrical appliances, week of computer products, communication products, electric tools and CD, DVD, MP3, MP4, etc. , can make quick sample mould, double color molding mold. Can both big small and medium-sized mold. The biggest mould size 2 m * 1 m, the heaviest weight up to 8 tons. Factory now has large-scale imports of CNC machines and other precision processing machinery and equipment, using advanced graphics software design and the processing system as a technical support. Now the mold the monthly output can reach 50 sets.
changshu company die molding processing screw back pressure and machine speed Settings are generally high back pressure can make molten material gain strong shear, low speed also can make plastic inside the barrel to get longer plasticizing time. And thus is more use of the program design of back pressure and rotational speed control. For example: in the screw metering well Mr. Cheng high speed, low back pressure, and then switch to the low speed, high back pressure, and then switch to high back pressure, low speed, and finally the plasticizing under low back pressure, low speed, so that the front of the screw pressure of melting get most of the release, reduce the moment of inertia of the screw, so as to improve the accuracy of the screw metering. Changshu mould company injection processing high back pressure, often cause colorants discoloration occurs; Plastic institutions machine barrel screw mechanical wear and tear; Plastic longer cycle, production efficiency decreases; Nozzle are prone to salivate, regeneration rate of increase; Even with self-locking type nozzle, if the back pressure is higher than the design of the spring closure pressure, also can cause fatigue damage. So, back pressure pressure must adjust it properly.
plastic bending deformation is what reason?
product deformation is mainly thermal contraction deformation caused by imbalance, or due to the product itself under the action of internal stress deformation. Changshu evergreen chang mould technology co. , LTD is mainly engaged in all kinds of plastic mould design, mould making and plastic injection, oil injection, pad printing and other processing services. Manufacture of mold types are widely, including all kinds of household electrical appliances, week of computer products, communication products, electric tools and CD, DVD, MP3, MP4, etc. , can make quick sample mould, double color molding mold. Can both big small and medium-sized mold. The biggest mould size 2 m * 1 m, the heaviest weight up to 8 tons. Factory now has large-scale imports of CNC machines and other precision processing machinery and equipment, using advanced graphics software design and the processing system as a technical support. Now the mold the monthly output can reach 50 sets.
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