Stock Temperature - The melt temperature of the molding material (stock temperature) is
controlled by the barrel temperatures, screw speed, injection speed and back pressure. The
greatest influence comes from back pressure and barrel temperatures. The water jackets around
the barrel regulate the point at which the material will start to plasticize. The screw speed,
injection speed and back pressure create frictional heat. To maintain a consistent and workable
stock temperature, all of these variables must be adjusted properly. The stock temperature
cannot be too hot that the material cures before it is able to fill the parts. Likewise it should not
be so cold that it cannot be injected into the mold or require additional cycle time to cure the
molded parts.