A hot mold surface keeps plastic surface liquid for a long time enough to create pressure in cavity.
Plastic injection molding temperature.
In injection molding for example molding conditions have a significant influence on the final properties of the material regardless of the part design.
Mold temperature is the most important variable in plastic molding no matter what kind of injection moulding products is molded it must be guaranteed to form a basic wetting of mold surface.
Two of the process conditions that have a substantial influence on the behavior of the polymer are the melt temperature and mold temperature.
The perfect temperature control is able to reduce the unit cost of plastic injection molding improve the quality of molded products ensure the correct replication of plastic part surface and guarantee the uniformity of shrinkage.
Of all the hundreds of processing variables to control in injection molding the temperature of the plastic especially its melt temperature is paramount no doubt.
One of the determining factors for quality injection molding is proper temperature control throughout the injection molding process.
During plastic processing mold temperature is an important variable that needs to be properly controlled.
The important process factors include injection molding temperature injection pressure and corresponding effects that affect plasticizing and cooling.
After all temperature control is critical and you should duplicate the plastic melt temperature as much as possible from one run to another.