Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding
A hot gas is used for heating the cavity surface of a mold. Different mold gap sizes were designed. The mold surface temperature was heated to above the glass transition temperature of the plastic material, and the mold then closed for melt filling. The cavity surface can be heated to 130°C to assis...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2013-01-01
|
| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1155/2013/282906 |
| _version_ | 1818353607403110400 |
|---|---|
| author | Shia-Chung Chen Chen-Yang Lin Jen-An Chang Pham Son Minh |
| author_facet | Shia-Chung Chen Chen-Yang Lin Jen-An Chang Pham Son Minh |
| author_sort | Shia-Chung Chen |
| collection | DOAJ |
| description | A hot gas is used for heating the cavity surface of a mold. Different mold gap sizes were designed. The mold surface temperature was heated to above the glass transition temperature of the plastic material, and the mold then closed for melt filling. The cavity surface can be heated to 130°C to assist the melt filling of the microfeatures. Results show that hot gas heating can improve the filling process and achieve 91% of the high aspect ratio microgrooves (about 640.38 μm of the maximum of 700 μm). The mold gap size strongly affects the heating speed and heating uniformity. Without surface preheating, the center rib is the highest. When the heating target temperature is 90°C or 100°C, the three microribs have a good uniformity of height. However, when the target temperature exceeds 100°C, the left side rib is higher than the other ribs. |
| first_indexed | 2024-12-13T19:12:13Z |
| format | Article |
| id | doaj.art-3b8bae82842d4598b6324143676fb0ac |
| institution | Directory Open Access Journal |
| issn | 1687-8132 |
| language | English |
| last_indexed | 2024-12-13T19:12:13Z |
| publishDate | 2013-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-3b8bae82842d4598b6324143676fb0ac2022-12-21T23:34:22ZengSAGE PublishingAdvances in Mechanical Engineering1687-81322013-01-01510.1155/2013/28290610.1155_2013/282906Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection MoldingShia-Chung Chen0Chen-Yang Lin1Jen-An Chang2Pham Son Minh3 R&D Center for Mold and Molding Technology, Chung Yuan Christian University, Chung-Li 32023, Taiwan Department of Mechanical Engineering, Chung Yuan Christian University, Chung-Li 32023, Taiwan R&D Center for Mold and Molding Technology, Chung Yuan Christian University, Chung-Li 32023, Taiwan Faculty of High Quality Training, University of Technical Education, Ho Chi Minh City 70000, VietnamA hot gas is used for heating the cavity surface of a mold. Different mold gap sizes were designed. The mold surface temperature was heated to above the glass transition temperature of the plastic material, and the mold then closed for melt filling. The cavity surface can be heated to 130°C to assist the melt filling of the microfeatures. Results show that hot gas heating can improve the filling process and achieve 91% of the high aspect ratio microgrooves (about 640.38 μm of the maximum of 700 μm). The mold gap size strongly affects the heating speed and heating uniformity. Without surface preheating, the center rib is the highest. When the heating target temperature is 90°C or 100°C, the three microribs have a good uniformity of height. However, when the target temperature exceeds 100°C, the left side rib is higher than the other ribs.https://doi.org/10.1155/2013/282906 |
| spellingShingle | Shia-Chung Chen Chen-Yang Lin Jen-An Chang Pham Son Minh Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding Advances in Mechanical Engineering |
| title | Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding |
| title_full | Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding |
| title_fullStr | Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding |
| title_full_unstemmed | Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding |
| title_short | Gas-Assisted Heating Technology for High Aspect Ratio Microstructure Injection Molding |
| title_sort | gas assisted heating technology for high aspect ratio microstructure injection molding |
| url | https://doi.org/10.1155/2013/282906 |
| work_keys_str_mv | AT shiachungchen gasassistedheatingtechnologyforhighaspectratiomicrostructureinjectionmolding AT chenyanglin gasassistedheatingtechnologyforhighaspectratiomicrostructureinjectionmolding AT jenanchang gasassistedheatingtechnologyforhighaspectratiomicrostructureinjectionmolding AT phamsonminh gasassistedheatingtechnologyforhighaspectratiomicrostructureinjectionmolding |