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The screw rotation speed of the large injection moulding machine
18 Feb 2019
The rotational speed of the screw significantly affects the degree of stability of the injection moulding process and the amount of heat acting on the plastic. The faster the screw...
Many injection moulding machines are equipped with screw retracting
11 Feb 2019
In order to prevent plastic from flowing out of the nozzle, a decompression (rewinding) device or a special shooting nozzle is also installed. If you use a stop-flow production and...
The defination of vented injection moulding machine
31 Jan 2019
Some plastics need to be vented in the shooting tank during injection moulding to allow the gas to escape. In most cases these gases are only air, but they may be melted moisture o...
Open nozzles should be used more in injection molding
26 Jan 2019
The melt usually flows from the nozzle into the nozzle, but with some moulds, the nozzle is part of the mould because it extends to the bottom of the mould. There are two main type...
Reasons for poor gloss of plastic parts
19 Jan 2019
1. The difference in the particle size of the raw materials is large, making it difficult to uniformly plasticize and the gloss is poor. For this, the raw materials should be sieve...
Pay attention to the injection moulding process
12 Jan 2019
1. If the injection speed is too small, the surface of the plastic part is not dense, and the gloss is poor. For this, the injection speed can be appropriately increased. 2. For th...