The plastic injection temperature is usually high. Injecting with air will burn the plastic since the oxygen in the air is flammable, which would be more obvious for transparent plastic parts. Therefore, injection molding machine uses nitrogen since it is not flammable.
Accumulator assist injection molding machine must be installed with a set of gas assist injection equipment, including:
1. Nitrogen producing machine or nitrogen bottles (grade nitrogen purity to 99%).
2. High-pressure nitrogen compressor and for a little quantity production can use pressurized cylinder mode.
3. High-pressure gas cylinders (for bigger quantity production use).
4. Gas assisted controller (it have single loop circuit and multi loop circuit two type).
Accumulator assist injection molding machine is specialized in avoiding sink mark, warping, flow line mark, reduce product weight (up to 50% depending on product condition), product cost, molding cycling time (up to 30% depending on product condition), increasing production efficiency, and internal force.