| 熔体质量流动速率测量不确定度评估中的流变行为分量 |
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| 引用本文： | 王治春,王超先.熔体质量流动速率测量不确定度评估中的流变行为分量[J].石化技术,2011,18(2):52-55. |
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| 作者姓名： | 王治春 王超先 |
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| 作者单位： | 1. 中国石油化工股份有限公司北京燕山分公司,北京,102500
2. 中国石油化工股份有限公司北京北化院燕山分院,北京,102500 |
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| 摘 要： | 在对线型低密度聚乙烯树脂熔体质量流动速率测量不确定度评定中增加了流变行为分量,并且建立了熔体质量流动速率计算公式、Renfrew和Morgan函数关系式及熔体表观黏度计算公式之间的关系,以此为基础从熔体流变行为的角度计算了口模和料筒尺寸公差的不确定度分量,该方法适用于所有的热塑性树脂。研究发现,测量原理和仪器结构等系统性因素占合成标准不确定度的比例很大,经估算该影响因素最大将达到60%左右。
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| 关 键 词： | 熔体质量流动速率 测量不确定度 流变行为 |
The Component of Rheological Behavior in Uncertainty Evaluation of Melt Mass Flow Rate Measurement |
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| Wang Zhichun,Wang Chaoxian.The Component of Rheological Behavior in Uncertainty Evaluation of Melt Mass Flow Rate Measurement[J].Petrochemical Industry Technology,2011,18(2):52-55. |
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| Authors: | Wang Zhichun Wang Chaoxian |
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| Affiliation: | Wang Zhichun~1,Wang Chaoxian~2 (1.Beijing Yanshan Petrochemical Co.,Ltd.,SINOPEC,Beijing 102500,China,2.Yanshan Branch,SINOPEC BRICI,China) |
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| Abstract: | The component of rheological behavior has been as a new parameter in uncertainty evaluation of liner low density polyethylene's melt mass flow rate measurement.It has been established that the correlativity between the computational equation for melt mass flow rate,functional equation of Renfrew, Morgan and apparent melt viscosity equation.Based on the melt rheological behavior,uncertainty components of the dimensional tolerance in the die and cylinder are calculated with the equations.The calculation metho... |
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| Keywords: | melt mass flow rate uncertainty of measurement rheological behavior |
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