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How to Choose the Right Cosmetic Tube for Your Product: A Comprehensive Guide
Runner system main forms and solutions
by：Lisson
2020-11-20
Once the plastic melt into the mold, it flows through a distribution system is also called the runner system, and then through the gate into the cavity.
Runner system mainly has two forms: the cold runner systems and hot runner system.
1. Cold runner system: now in the cold runner system, every shape cycle to generate a new port, the port a ejector with products. This part of the channeling plastic can usually handle again, used for forming again. Any form of injection moulding machine can use cold runner.
2. Hot runner system: now the hot runner system, from the nozzle to the gate the interval plastic is always hot. Heat flow and the melt temperature is usually the same as the melt temperature in the nozzle. Hot runner, generally not to heat plastic, but can not keep the plastic cooling, keep it in the required temperature.
1. Cold runner system: now in the cold runner system, every shape cycle to generate a new port, the port a ejector with products. This part of the channeling plastic can usually handle again, used for forming again. Any form of injection moulding machine can use cold runner.
2. Hot runner system: now the hot runner system, from the nozzle to the gate the interval plastic is always hot. Heat flow and the melt temperature is usually the same as the melt temperature in the nozzle. Hot runner, generally not to heat plastic, but can not keep the plastic cooling, keep it in the required temperature.
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