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What are the factors that affect the work of vertical injection molding machine ?

Jun 09, 2020

The vertical injection molding machine is mainly used for plastic extrusion operations. So what are the factors that affect its work?

 

Factor one: temperature

 

    As far as the temperature of the vertical injection molding machine is concerned, if the temperature of the equipment is increased, the melt viscosity can be reduced, the melt fluidity can be improved, the power consumption of the machine can be reduced, and the screw speed can also be appropriately increased. However, everything has a degree. If the temperature of the machine is too high, it will appear that the extruded parison is prone to sag, which causes uneven longitudinal wall thickness of the parison. This shows that maintaining an appropriate temperature is very important.

 

Factor 2: Melt conveying speed

 

    If the melt conveying speed of the vertical injection molding machine is increased, the self-weight sag phenomenon of the parison can be improved, and the wall thickness of the parison can be increased. However, if the speed is too fast, melt fracture may also occur. Therefore, during operation, it is necessary to maintain the melt delivery speed of the machine within a stable value according to the operating instructions.

 

    In the above, we have analyzed their influence from the two aspects of the temperature of the machine and the melt conveying speed. You can refer to the above information during operation to maintain these factors within a stable range.