Precautions melt pump

Avoid low interference

In the extrusion process, the plastic material concerned, from a solid to a molten state should have sufficient " soak time ." If the extruder before the start of production has not yet reached operating temperature , then melt pressure sensor and extruders will be subject to some degree of damage. In addition, if the high temperature melt pressure sensor from the cold extruder were removed, the material may adhere to the top of the melt pressure sensor damage caused vibration film. Therefore, before dismantling melt pressure sensor , make sure the barrel temperature is high enough , the material inside the cylinder is in a softened state .

Prevent pressure overload

Even overload sensor design pressure range can reach a maximum of 50% ( beyond the maximum range of the ratio ) , from a security point of view of equipment operation should also try to avoid risk , the best choice in a hot melt pressure measured pressure within the range of sensors. Under normal circumstances , the optimum range of the selected melt pressure sensor should be two times the measured pressure , so that even an extruder run at a high pressure, high temperature melt pressure sensor to avoid damage .