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Gas-assisted injection molding technology features
(1) The design of the mold cavity should ensure the flow balance to reduce the uneven penetration of the gas, and ensure the flow balance is also a design principle of the common injection molding mold, but this is more important for the gas-assisted injection molding products.
(2) The mold design should consider the influence on the process parameters, because gas-assisted injection molding is much more sensitive to process parameters than ordinary molding. In injection molding, small differences in mold wall temperature or injection volume can lead to asymmetry of gas penetration in symmetrical parts.
Gas-assisted injection molding equipment
(1) Ordinary injection molding machine (the metering accuracy is slightly higher).
(2) Nitrogen control system, including self-sealing gas-assisted nozzles.
(3) High pressure nitrogen generator.
(4) Industrial nitrogen cylinders and air compressors that provide supercharged power.
(5) A mold designed and manufactured for gas-assisted injection.
(6) Gas-assisted injection molding gas auxiliary nozzle
The nozzle air intake mode uses a special self-closing gas-assisted nozzle. After the plastic injection is finished, the high-pressure gas directly enters the plastic inside by the nozzle, and forms an extended closed ***ce-air cavity according to the air passage and maintains a certain pressure until the pressure is maintained. Cooling, before the mold is opened, the nozzle is forced to separate from the product channel by the backrest of the table, and the gas is discharged from the product.
(7) gas needle
The air needle intake method is to install an exhaust device¡ªa gas needle at a specific position of the mold. When the plastic is injected into the cavity, the gas needle is wrapped inside the plastic; at this time, the high-pressure gas is discharged, and the gas needle forms an extended closed ***ce-air cavity according to the air passage inside the plastic, and maintains a certain pr |
| Company: |
Taizhou Huangyan Odin Mould Co.,Ltd
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| Contact: |
Anna Zhao |
| Address: |
No.13.Kangqiang Road, North City, Huangyan, Taizhou, Zhejiang, China |
| Postcode: |
318020 |
| Tel: |
+8657681122133 |
| Fax: |
+8657681122133 |
| E-mail: |
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