Käyttämällä a pystysuora ruiskutus muovaus kone termoelementti tarkka lämpötila mittaus mittaus elementti % 2c ja lisääminen a millivoltti mittari tarkka lämpötila mittaus % 2c it siitä tulee a pystysuora ruiskutus muovaus kone kone se toimii johtavuus kierros virtaus välillä materiaali tynnyri ja muotti % ja on kyky valikoivasti säätää lämpötilaa kukin osa materiaali tynnyri ja muotti lämpötila se pystysuora ruisku muovaus kone täytyy ohjaus aikana ruiskutus muovaus prosessi sisältää tynnyri lämpötila % 2c suutin lämpötila 2c ja muotti lämpötila. Tuo kaksi lämpötilaa on a merkittävä vaikutus muovien pehmittämiseen ja juoksevuuteen juoksevuuteen ja juoksevuuteen juoksevuuteen juoksevuuteen muovien juoksevuuteen ja juoksevuuteen juoksevuuteen .
1. pystysuora ruisku muovaus kone tynnyri lämpötila
The selection of material barrel temperature for vertical injection molding machines is related to the characteristics of plastics, especially the fluidity temperature (Tf) or melting point temperature (TM) of plastics. For amorphous plastic, the high temperature at the end of the barrel should be higher than Tf, while crystalline plastic should be higher than Tm, but the temperature decay of the plastic should be lower than the dissolution temperature (Td) of the polymer. Therefore, a good temperature range for the barrel should be between Tf or Tm - Td. For plastics with a narrow Tf or Tm Td range, such as polyvinyl chloride and paraformaldehyde, the barrel temperature should be controlled at a slightly lower level, while for plastics with a wide Tf or Tm Td range, such as polyethylene and polypropylene, the barrel temperature can be slightly higher. In addition, the effects of heat resistance, the content and distribution of plastics, fillers, and reinforcing agents, handicrafts, injection molds, and injection equipment should also be considered. The distribution of the material barrel is stable, and the material barrel gradually rises from the nozzle to the end, ensuring a uniform increase in raw material temperature and achieving symmetrical plasticization.
2. pystysuora ruiskutus muovaus kone suutin lämpötila
Due to the fact that when the solution is based on the nozzle, the material temperature will increase with the increase of cutting speed (about 103-102), and the nozzle temperature is slightly lower than the high temperature of the material barrel. However, if the temperature is too low, the injection working pressure will increase, or the raw material will solidify in advance, thereby affecting the quality of handicrafts. Due to many factors that affect the fluidity of polymers, adjustments are generally made based on "air injection" or "visual analysis methods for artwork" before molding to determine the barrel temperature and nozzle temperature of vertical injection molding machines.
3. Vertical injection molding machine mold temperature
The temperature of the mold has a significant impact on the quality of handicrafts, and its selection depends on whether the polymer crystallizes, the specifications and structure of the handicraft, the specifications of the characteristics, and other injection standards (solution temperature, injection rate and working pressure, molding cycle). For amorphous polymers, mold temperature has a significant impact on the viscosity (fluidity) of the solution. If the viscosity of the raw material solution is low, such as Ps, the mold temperature can be slightly lower to increase production. If the viscosity of the solution is high (such as mPPE, PSF), the higher mold temperature is: mPPE is 120 degree C~140 degree C, and PSF is 140 degree C~130 degree C. For crystalline polymers, crystals are non isothermal in vertical injection molding machines. The mode temperature of the vertical injection molding machine should be set at the periphery of the temperature (TCM) between Tg and Tm, or slightly lower.
