Since the advent of low-pressure injection molding machines, the traditional ordinary injection molding machines have been replaced, and the prospects are very optimistic. Many people who have just contacted the low-pressure injection molding machine have a question, what is the difference between them? If the pressure of the ordinary injection molding machine is adjusted to the pressure of the low-pressure injection molding machine, for example, a product should use a low-pressure injection molding machine. The pressure is 21mp, then if we adjust the pressure of the ordinary injection molding machine, can it be used in the same way as the low-pressure injection molding machine?

This is mainly because the low-pressure injection molding machine is not known. The low-pressure injection molding machine and the ordinary injection molding are not only the difference of pressure, but also the materials used for injection molding, the injection process and the method are different.

The raw materials used in low-pressure injection molding machines are different from the traditional ordinary injection molding machines. The low-pressure injection molding machines do not have a screw device because the hot melt adhesive used for low-pressure injection molding has very low viscosity and good popularity. It does not require screw extrusion. It is melted by the rubber cylinder and then injected by a gear pump, and then cooled and formed. Even if the traditional injection molding machine adjusts the pressure to the same as low-pressure injection molding, due to the high viscosity of the material and poor fluidity, direct injection molding will lead to insufficient injection, which is what we all call the lack of glue. In addition, the bonding properties of low-pressure injection molding materials are unmatched by traditional process plastics.

Low-pressure injection molding materials have waterproof, flame retardant and good high temperature and low temperature resistance. Therefore, its cost is relatively high, and it is generally used in the aspect of high added value, such as components of precision electronic instruments such as mobile phone circuits and pcb circuit boards. Because precision electronic components are small and fragile, it is easy to damage components with traditional high-pressure high-temperature injection molding. Therefore, the first choice for precision instruments is low-pressure injection molding machine.