| 一种新型板材模头的设计及其计算方法 |
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| 引用本文： | 姜宝义,周晓.一种新型板材模头的设计及其计算方法[J].沈阳化工学院学报,2000,14(4):277-280. |
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| 作者姓名： | 姜宝义 周晓 |
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| 作者单位： | [1]沈阳化工学院,辽宁沈阳 [2]朝阳轮胎股份有限公司,辽宁朝阳 |
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| 摘 要： | 提出一种新型的能够保证熔体在口模出口处速度均布的片材模头，并推导流道系统的普适设计公式；运用流变学理论，根据模头中所有流道上压力损失相等及特征剪切速率相等的条件，推导不依存于材料特性和操作点的流道设计，即普适流道。
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| 关 键 词： | 板模头 流变学分析 剪切速率 塑料制品 片材 |
A New Type Sheet Die and its Design Method |
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| JIANG Bao-yi\ ,\ CHEN Bao-sheng\ ,\ LUO Peng\ ,\ ZHOU Xiao\.A New Type Sheet Die and its Design Method[J].Journal of Shenyang Institute of Chemical Technolgy,2000,14(4):277-280. |
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| Authors: | JIANG Bao-yi\ \ CHEN Bao-sheng\ \ LUO Peng\ \ ZHOU Xiao\ |
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| Affiliation: | JIANG Bao-yi\ 1,\ CHEN Bao-sheng\ 1,\ LUO Peng\ 1,\ ZHOU Xiao\ 2 |
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| Abstract: | This paper introduced a new type sheet die which can assure the polymer fluid get the same velocity at the die orifice.According to the rheology theories,considering that the pressure lose along any flow path and representative shear-rate anywhere in the die must be equal,we deduce the manifold and flow path which is able to make the design of the die independent to flow rate and viscosity of the polymer. |
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| Keywords: | sheet die \ rheology analysis \ shear-rate |
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