Gas-assisted injection molding can effectively produce parts free of sink marks in thick sections and free of warpage in long plates. This research investigated the basic filling phenomena in a gas-assisted injection molding process with flow visualization. A high-speed video camera was used to reco
Flow patterns in gas-assisted injection molding process in a channel
โ Scribed by Cheng-Hsing Hsu; Po-Chuang Chen; Kuang-Yuan Kung; Chuan Lai
- Book ID
- 105851424
- Publisher
- Springer
- Year
- 2006
- Tongue
- English
- Weight
- 297 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0268-3768
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๐ SIMILAR VOLUMES
Large, thin, plate-shaped parts are usually strengthened with structural ribs. Ribs also serve as gas channels with gas-assisted technology. Gas penetration in the gas channels results in improved moldability and also eliminates sink marks and prevents warpage. However, gas leaves the rib core void,
This paper is concerned with the practical application of closed-loop control on the gas pressure during the gas-assisted injection molding process. In principle, the gas-injection process can be treated as a valve-controlled tank charging. One of the critical factors for the successful application