| 大规格弯曲薄壁塑件注射成型浇注系统设计 |
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| 引用本文： | 刘琼,王乾廷.大规格弯曲薄壁塑件注射成型浇注系统设计[J].福建工程学院学报,2008,6(1):43-45. |
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| 作者姓名： | 刘琼 王乾廷 |
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| 作者单位： | 福建工程学院材料科学与工程系,福建,福州,350014 |
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| 基金项目： | 福建省青年科技人才创新项目
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福建工程学院科研发展基金 |
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| 摘 要： | 以汽车裙边塑件为例,分析了大规格弯曲薄壁塑件的结构和成型性能特点,然后将浇注系统设定为圆柱体内的塑料熔体流动,其它非圆截面浇注系统采用形状因子等效,并通过数值模拟,获得熔接痕位王及锁模力、进浇口压力的变化曲线.在此基础上,对浇注系统进行改进,有效控制了熔接痕的大小和位置.
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| 关 键 词： | 浇注系统 大规格薄壁 汽车裙边 缺陷控制 大规格 弯曲 壁塑件 注射成型 浇注系统设计 plastic thinning bending injection system 位置 大小 控制 改进 变化曲线 压力 进浇口 锁模力 熔接痕 数值模拟 形状因子 |
| 文章编号： | 1672-4348（2008）01-0043-03 |
| 收稿时间： | 2007-10-08 |
| 修稿时间： | 2007年10月8日 |
The design of injection system for big-size bending thinning plastic |
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| Liu Qiong,Wang Qiantin.The design of injection system for big-size bending thinning plastic[J].Journal of Fujian University of Technology,2008,6(1):43-45. |
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| Authors: | Liu Qiong Wang Qiantin |
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| Institution: | Materials Science and Engineering Department;Fujian University of Technology;Fuzhou 350014;China |
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| Abstract: | The structure and molding features of big-size bending thinning plastic were analyzed via an example of auto-skirt. The injecting control equations were set up by assuming that the melt flowed in cylinder and the other sections were equivalent to the cylinder attached with a shape factor. By numerical simulation, the change curves of weld lines in the plastic, the variety of clamp force and the pressure at the injection location were obtained. The results show that this method can control the size and location of welding lines to obtain the required plastic. |
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| Keywords: | injection system big-size thinning plastic auto-skirt defect control |
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