Verifying the Gas Heating Method for Injection Molding

Truong Giang Nguyen; Pham Son Minh; Anh Son Tran

doi:10.4028/www.scientific.net/KEM.861.188

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 861Verifying the Gas Heating Method for Injection...

Verifying the Gas Heating Method for Injection Molding

Abstract:

In recently year, the plastic product is almost made by injection molding method. In this paper, a hot gas was used for mold heating with the gas temperature varied from 200°C to 400°C. The results showed that with three types of gas temperature, the heating rate is high in the first 20 s and the highest heating speed of 8.25°C/s could be achieved with 400°C gas. In all cases, the mold temperature has a limitation after 30 s of heating. In our experiment, the limitation of cavity temperature is 172.2°C. This cavity temperature is almost good for the melt flow in to the cavity, especially with the thin wall molding cases.

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Periodical:

Key Engineering Materials (Volume 861)

Pages:

188-192

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.861.188

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Online since:

September 2020

Authors:

Truong Giang Nguyen, Pham Son Minh*, Anh Son Tran

Keywords:

External Gas-Assisted Mold Temperature Control, Injection Molding, Melt Flow Length, Mold Heating, Thin-Wall Product

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