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Other Injection Molding Machine

Silicon Injection Molding Machine

Dakumar Machines can suitable for silicone injection molding machine molding, TPE molding , EVA and rubber injection molding solution, we can realizing the two color molding solution on Dakumar system.

Silicone Injection Molding Machine, two color molding machine

Dakumar Machinery is a silicone injection molding machine manufacturer, TPE molding machine supplier, EVA machine making company, and rubber injection molding solution expert.

All of these material like TPE, RUBBER, EVA, SEBS, silicone has one character in common: soft. Silicone is a high adsorption properties, thermal stability, chemical stability, has high mechanical strength material. silicone is mould widely used in simulation of human organs, medical silicone breast pad, baby nipple, thermal insulation elements, food container, bi-color commodity parts, toys, vibration-proof material etc. If you want to produce these kinds material product by injection molding machine, Dakumar Machinery will recommend suitable machine screw for you.

For liquid silicone rubber, it can be divide into A and B, it will mixed with 1: 1 rate by volume control device and Static Mixer, then to injection the material into silicone mould cavity. The injection machine plasticizing screw should have the function of homogenization, mixing, mixture injection through the screw to heating mold, mold temperature need around 170-200 , then silicone curing reaction occurs. One time moulding, no material waste and fully automatic is Dakumar machine advantage.  

For cold runner systemsilicone mould, worthy of note is the runner should be cold enough. In order to avoid plastic leakage, the valve gate installed on the surface of mould, once injection finished, pin closed valvenozzle immediately.

Dakumar Silicone injection machines feeding system is different from traditional injection moulding machine. It has below option for choice:

Bi-directional pump can move feeding, well keep up the pressure, as it connects between A and B pumps and synchronization by hydraulic and pneumatic control, so this form of feeding systems more reliable and accurate.

Single pump is general, only single feed.

Synchronous single pump with check valve.

Measuring tube system used with a single pump.

Due to the low viscosity of the silicone material, backflow and leak of the material should be considered in the processing, so the screw sealing is necessary.

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