| 注塑制品周边白线缺陷的分析及其改善 |
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| 引用本文： | 张增红,魏丽乔,许并社.注塑制品周边白线缺陷的分析及其改善[J].工程塑料应用,2006,34(11):32-34. |
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| 作者姓名： | 张增红 魏丽乔 许并社 |
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| 作者单位： | 太原理工大学材料科学与工程学院,太原,030024 |
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| 摘 要： | 针对注塑制品在成型过程中常见的周边白线缺陷分析了其产生的原因,发现主要是由于聚合物在拉应力作用下应力集中而产生空化条纹状形变区,这些条纹平面区强烈地反射可见光,使材料表面形成一片银白色光泽。讨论了锁模力、模具、残余应力和内应力对注塑制品周边白线的影响,提出了改善注塑制品周边白线的方法。
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| 关 键 词： | 注塑制品 白线 改善 |
| 收稿时间： | 2006-09-06 |
| 修稿时间： | 2006年9月6日 |
ANALYZING AND IMPROVING FOR WHITE LINE ROUND INJECTION MOLDED PRODUCTS |
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| Zhang Zenghong,Wei Liqiao,Xu Bingshe.ANALYZING AND IMPROVING FOR WHITE LINE ROUND INJECTION MOLDED PRODUCTS[J].Engineering Plastics Application,2006,34(11):32-34. |
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| Authors: | Zhang Zenghong Wei Liqiao Xu Bingshe |
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| Affiliation: | The College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | The reasons caused the defect of white-line round the products in molding process are analyzed. It is found that the main reason is empty striation deformation area due to polymer stress concentration by tensile stress, and the striation area reflects visible light powerfully so that a silver gloss occurs on the surface of the material. The influences of locking force, mould, residual stress and internal stress on the white-line round injection products are discussed and the methods of improving white-line are put forward. |
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| Keywords: | injection product white-line improving |
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