包能胜,刘小山,马婉,黄学佳.辊式涂布两辊间隙施涂过程的数值计算分析[J].包装工程,2016,37(23):6-12.
BAO Neng-sheng,LIU Xiao-shan,MA Wan,HUANG Xue-jia.Numerical Calculation and Analysis on Roll Coating Process of the Clearance between Two Rollers[J].Packaging Engineering,2016,37(23):6-12. |
| 辊式涂布两辊间隙施涂过程的数值计算分析 |
| Numerical Calculation and Analysis on Roll Coating Process of the Clearance between Two Rollers |
| 投稿时间：2016-07-31 修订日期：2016-12-10 |
| DOI： |
| 中文关键词: 五辊无溶剂涂布 非牛顿流体 两辊间隙 施涂过程 数值计算 CFD |
| 英文关键词: five-roller solvent-free coating non-Newtonian fluid the clearance between two rollers the coating process numerical calculation CFD |
| 基金项目:国家自然科学基金（51275281）；广东省高等学校产学研基地滚动项目（2013CXZDC009）；汕头大学创新强校省级重大科研项目（2014KZDXM035）；汕头市科技计划项目（2014-14）；汕头职业技术学院“创新强校工程”建设项目（STP-ZZ-013）；汕头职业技术学院院级科研课题（SZK2014Y26） |
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| 中文摘要: |
| 目的 系统地计算涂层厚度与两辊间隙、涂布辊速度以及胶黏剂的流体稠度和流动指数等影响因子的关系。方法 在分析该复杂流动机理的基础上，利用CFD软件对具有非牛顿流体特性胶黏剂的两辊间隙施涂过程进行二维数值模拟。结果 在五辊无溶剂涂布工程中，两辊间隙增大，最终涂布厚度也明显增大；增大涂布辊转速，涂布厚度也将减小；胶黏剂的流体稠度越大，最终传递到基材上的涂层厚度减小。结论 两辊间隙的大小对涂层厚度的影响最大，胶黏剂的流体稠度、流动指数也对涂层厚度有较大的影响。 |
| 英文摘要: |
| The work aims to systematically calculate the relationship between coating thickness and such influencing factors as the clearance between two rollers, speed for coating rolls, and fluid consistency and flow index of adhesive. Based on the analysis on the complicated flow mechanism, the 2D numerical simulation for the process of coating the clearance between two rollers with adhesive characterized by non-Newtonian fluid through CFD software was carried out. In the five-roller solvent-free coating project, the coating thickness finally increased notably with the increase in the clearance between two rollers. The coating thickness would decrease with the increase in the speed at which the roller was coated. With the continually increased fluid consistency of the adhesive, the thickness of the coating ultimately transmitted to the substrate would decrease. The clearance between two rollers has the largest effect on the coating thickness, and the fluid consistency and flow index of the adhesive also have a big impact on the coating thickness. |
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