Brief introduction of the processing method of the

Introduction to the processing method of gas assisted injection molding system

gas assisted injection molding system, this advanced system and technology, is to inject nitrogen directly into the plasticized plastic wrap in the mold cavity through the segmented pressure control system, so as to expand the inside of the plastic part and create a hollow, but still maintain the integrity of the product surface

the application of gas assisted injection molding technology has the following advantages:

1) save plastic, adopt double lead screw 4 column rubber raw material, and the saving rate can be as high as 50%

2) shorten the production cycle time of products

3 put the sheepfold on the hillside) reduce the mold locking pressure of the injection molding machine by up to 60%

4) improve the working life of the injection molding machine

5) reduce the pressure in the mold cavity, reduce the loss of the mold and improve the working life of the mold

6) for some plastic products, the mold can be made of aluminum metal

7) reduce the internal stress of the product

8) solve and eliminate the problem of shrinkage marks on the product surface

9) simplify the cumbersome design of products

10) reduce the power consumption of the injection molding machine

11) reduce the investment cost of injection molding machine and mold development

12) reduce production costs

gas assisted injection molding technology can be applied to various plastic products, such as TV or audio enclosures, automotive plastic products, furniture, bathrooms, kitchenware, household appliances and daily necessities, various types of plastic boxes and toys, etc

gas assisted injection molding technology must be widely used in the injection molding industry

material selection

basically all thermoplastics used for injection molding (reinforced or unreinforced) and general engineering plastics (such as PPS, Pai, PES) are suitable, and at this time, they are used for gas assisted injection molding

computer aided simulation analysis

1) prevent gas trapping and ensure average gas filling

2) prevent gas from damaging the surface of finished products

3) trapped gas has extrusion characteristics and plays an important role in the pressure maintaining stage. Therefore, with the help of computer-aided simulation analysis, it can ensure a more accurate prediction of plastic distribution and mold filling

requirements for injection molding machine system equipment

basically, the gas assisted injection molding system can cooperate with injection molding machines of different brands around the world, as long as these injection molding machines are equipped with:

1) catapult nozzle to prevent high-pressure gas from running into the screw of the injection molding machine

2 usually produced through additive manufacturing) the screw stroke of the injection molding machine is equipped with an electronic ruler stroke switch to trigger a signal to the gas auxiliary main system, so as to inject high-pressure nitrogen into the mold cavity