How to control the temperature of the tray Blow molding machine?
The tray Blow molding machine will not have the high temperature that flow occurs under a certain pressure. A certain amount of plastic is added to the barrel at the upper end of the capillary rheometer mold. After heating to a certain temperature, after 10 minutes at room temperature, use 50 MPa If the material does not flow out of the mold, it will be difficult to increase the temperature of the material by ten degrees after the pressure is relieved. After holding for ten minutes, the same constant pressure will be applied again until the melt is removed from the mold and the material does not flow. The temperature is reduced by ten degrees until the material is discharged.
For crystalline polymers, it refers to the temperature at which the three-dimensional long-range ordered state of the polymer chain structure transforms into a disordered viscous flow state, also known as the melting point. According to the manufacturer of the tray Blow molding machine, this is the lower limit of the processing temperature for crystalline polymers. The plastic transition temperature refers to the transition temperature of an amorphous polymer from a plastic state to a highly elastic state or from the latter to the former. It is the low temperature of the movement of the amorphous polymer chain and the upper limit of the product's working temperature.