| RHCM成型制品高光面形成微观机理研究 |
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| 引用本文： | 刘东雷,辛勇. RHCM成型制品高光面形成微观机理研究[J]. 中国塑料, 2008, 22(7): 71-74. DOI: 10.19491/j.issn.1001-9278.2008.07.014 |
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| 作者姓名： | 刘东雷 辛勇 |
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| 作者单位： | 南昌大学机电工程学院，江西南昌JJOOJI |
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| 基金项目： | 江西省自然科学基金项目(0450060);;江西省跨世纪主要学科学术和技术带头人项目(Z1815) |
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| 摘 要： | 根据快速冷热成型技术(RHCM)成型塑料熔体在型腔内的填充流动规律，在普通注射成型机理研究基础上，从微观角度对RHCM技术在提高制品对模具的复原性，消除熔接痕、凹痕、银丝纹、流纹、表面浮纤等表观缺陷以及改善制品表面色差等方面的成型机理进行研究。结果表明，正是由于RHCM高温快速成型这一工艺特点，一方面确保熔体在型腔内的充分扩展与汇合，另一方面最大程度的限制制品的成型收缩，从而确保制件的最终成型品质。
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| 关 键 词： | 快速冷热成型 高光制品 成型机理 微观结构 |
| 收稿时间： | 2008-04-04 |
Process Mechanism in Microstructure of High-gloss Surface Parts Molded by RHCM Technology |
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| LIU Dong-lei XIN Yong. Process Mechanism in Microstructure of High-gloss Surface Parts Molded by RHCM Technology[J]. China Plastics, 2008, 22(7): 71-74. DOI: 10.19491/j.issn.1001-9278.2008.07.014 |
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| Authors: | LIU Dong-lei XIN Yong |
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| Affiliation: | School of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330031，China |
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| Abstract: | According to the flow character of polymer melt in cavity,the molding mechanism in the rapid heat cycling molding (RHCM) was studied.How to enhance the reproductive ability to cavity, eliminate processing defects,such as weld mark,dark mark,flow mark,sliver mark,fibre on surface, and how to eliminate the difference in color were discussed.It was found that just because of the high melt temperature the polymer melt could flow smoothly and joins fully,resulted in lower shrinkage and thus ensured the higher qu... |
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| Keywords: | rapid heat cycling molding high-gloss surface part process mechanism microstructure |
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