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首页> 外文会议>World Tribology Congress III vol.1; 20050912-16; Washington,DC(US) >Experimental and Numerical Study of Emulsion Lubricated Strip Rolling
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Experimental and Numerical Study of Emulsion Lubricated Strip Rolling

机译：乳化带钢轧制的实验与数值研究

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摘要

An experimental and numerical study of cold rolling lubricated by O/W emulsion has been carried out. The experimental measurements are compared to the computed results from the numerical scheme developed by the authors. The scheme, which is based on two-phase lubricant model, is able to calculate oil concentration at any point within the inlet zone and work zone, rolling pressure, film thickness, and fractional contact ratio associated with strip rolling under mixed film lubrication at different rolling speed. The study encompassed extensive mixed film regime for speed, S ranges from 10~(-5) to 10~(-1), and supply oil concentration level λ_(ds) ranges from 1% to 10%, and oil droplet size ranges from D_s from 5 to 20. The numerical results show the occurrence of moderate oil concentration increase in the inlet zone followed by a sharp one at the beginning of the work zone. The effect of the concentration process is predominantly seen in the film thickness and the lubricant pressure whilst its effect on the total pressure is less pronounced. The analysis of the results suggests that it is possible to lower the emulsion oil concentration without detrimental effects on the rolling process and indeed use this principle to control the outlet lubricant film thickness.
机译：进行了O / W乳液冷轧润滑的实验和数值研究。将实验测量结果与作者开发的数值方案的计算结果进行比较。该方案基于两相润滑剂模型，能够计算出在不同的混合膜润滑条件下，带材轧制过程中，入口区和工作区中任何点的油浓度，轧制压力，膜厚和分数接触比。滚动速度。这项研究涵盖了广泛的混合膜方案，以提高速度，S范围从10〜（-5）到10〜（-1），供油浓度水平λ_（ds）范围从1％到10％，油滴大小范围从D_s从5到20。数值结果表明，在进口区域中出现了适度的油浓度增加，随后在工作区域的开始出现了尖锐的浓度。浓缩过程的影响主要体现在薄膜厚度和润滑剂压力上，而对总压力的影响则不太明显。结果分析表明，可以降低乳化油的浓度，而不会对轧制过程产生有害影响，实际上可以利用这一原理来控制出口润滑剂膜的厚度。

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