The Nozzle Extends to The Bottom of The Air Cooler Mould
The melt typically flows from the nozzle into the nozzle, but for an Air Cooler Mould(FURNITUREMOULD), the nozzle is part of the air cooler mould because it extends to the bottom of the air cooler mould. There are two main types of nozzles: open nozzles and closed nozzles. In injection moulding, open nozzles should be used more because they are cheaper and less likely to stay. If the injection moulding machine is equipped with a pressure reducing device, the nozzle can be used even if the viscosity is low.
It is sometimes necessary to use a closed nozzle that acts as a shut-off valve and blocks the shadow of the plastic in the spray cylinder. Make sure the nozzle is properly inserted into the nozzle sleeve. The top hole is slightly smaller than the nozzle sleeve, which makes the nozzle easier to remove from the air cooler mould. The hole of the interface sleeve is 1 mm larger than the nozzle opening, ie the radius of the nozzle is 0.5 mm thinner than the radius of the nozzle sleeve.
The impurities of the plastic can be removed by the filter of the extensible nozzle, i.e. the melt and the plastic flow through the passage which is divided into narrow spaces by the insert. These narrow and gaps remove impurities and improve the mixing of the plastic.
Therefore, to extend it, you can use a fixed mixer to achieve better mixing. These devices can be mounted between the firing slot and the nozzle to separate and remix the melt, primarily to allow the melt to flow through the stainless steel tank.