22-09-2014, 02:01 PM
Abstracts: The main working principle of plastic molding machine is to use the plastic thermal physical properties. The barrel of the injection molding machine supports the reciprocating plasticizing screw. It is heated by the electric heater bands. In injection molding machine problem will be occur that less heating in occur barrel due to insufficient temperature. So the wastage of plastic material increase and defective piece was produce. so many loss in production of the product that we produce. So we can say that it was undesirable and less efficiency and less productivity of material achieve. Due to insufficient heating of barrel the plastic pallets doesn’t melt properly and 30-40 buckets are wasted at initial 45 minutes. To overcome this problem we try to improve heating process by use of blankets it is recommended to decrease the wastage of the heater bands by 20 to 25% to extent heater life and further reduce power consumption our other solution is that we replace the band heater by infrared heater due to of this heater we improve the heating capacity of barrel and we will be try to prove by CFD analysis of band heater and infrared heater in term of heat.