How to control the temperature of mold parts processing?

Mold parts processing temperature is the most important variable in injection molding ---- No matter what kind of plastic is injected, it must be ensured to form a basic wetting of the mold surface. A hot mold surface keeps the plastic surface liquid long enough to build pressure in the cavity.
 
If the cavity is filled and the cavity pressure can press the soft plastic against the metal before the frozen skin hardens, then the cavity surface replication is high. On the other hand, if plastic entering the cavity at low pressure is suspended, no matter how briefly, then its slight contact with the metal can cause stains, sometimes called gate stains.
 
For each type of plastic and plastic part, there exists a mold surface temperature limit beyond which one or more undesirable effects may occur (e.g., the component can spill burrs). The higher temperature of mold parts, non-standard mold parts processing means less resistance to flow.
 
On many injection molding machines, this naturally means faster flow through the gate and cavity, because the injection flow control valves used do not correct for this change, and faster filling causes higher effective pressure in the gate and cavity. This can cause overflow burrs.
 
Since the hotter model does not freeze the plastic that enters the overflow edge area before high pressures are developed, the melt can overflow around the ejector bar and spill into the parting line gap. This indicates the need for good injection rate control, and some modern flow control programmers can indeed do this.
 
Typically, an increase in mold temperature will reduce the amount of plastic that has a condensation layer in the cavity, allowing the molten material to flow more easily in the cavity, resulting in greater part weight and better surface quality. At the same time, the increase in mold temperature will also increase the tension strength of the part.
 
Mold parts, non-standard mold parts processing of insulation methods.
 
Many molds, especially engineering thermoplastics, operate at relatively high temperatures, such as 80 degrees Celsius or 176 degrees Fahrenheit. If the mold is not insulated, the heat lost to the air and the injection molding machine can easily be as much as what is lost from the injection cylinder.
 
So insulate the mold parts,non-standard mold parts processing an airplane skeleton plate, and if possible, insulate the surface of the mold from heat. If considering a hot runner mold, try to reduce the heat exchange between the hot runner section and the cooled injection molded part. Such a method can reduce energy loss and preheating time.