Polymer additives as mist suppressants in metal cutting fluids
Polymer additives as mist suppressants in metal cutting fluids
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发表时间：
1997
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通讯作者：
R. S. Marano;J. Smolinski;C. Manke;E. Gulari;R. Messick
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作者：
R. S. Marano;J. Smolinski;C. Manke;E. Gulari;R. Messick
在金属汽车部件的加工过程中，流体通常被喷射到切削工具表面上。该切削液大大提高了加工工艺，并允许大规模生产符合工程质量要求的部件。不幸的是，喷洒和高速切割动作经常使流体变成非常小的液滴，在植物中形成持续的雾状薄雾。机械加工厂的环境雾一直是一个持续的环境问题，特别是它对工人呼吸区空气质量的影响。作者的方法是通过一个简单的流变学概念来减少在源头形成的雾的量。以前的方法试图包含一旦形成的雾。新方法利用了可溶性的能力。高分子量聚合物在低浓度下为流体提供显著的弹性。发现少量（小于100 ppm）的聚异丁烯（PIB）在抑制纯矿物油切削液的雾形成方面极其有效。随后的工厂中试试验证实了这些结果，仅使用20-100 ppm PIB添加剂就产生了70-90%的油雾减少。另外。没有观察到对机械加工部件质量或流体性能的不利影响。初步研究表明，水基切削液的抑雾剂的类似开发潜力。
A fluid is typically sprayed onto cutting tool surfaces during the machining of metal automotive components. The cutting fluid greatly enhances the machining process and allows the mass production of components that meet engineering quality requirements. Unfortunately the spraying and the high speed cutting action often atomize the fluid into very small droplets, creating a persistent, fog-like mist in the plant. Ambient mist in machining plants has been an ongoing environmental concern, in particular its effect on workers' breathing zone air quality. The authors' approach was to reduce the amount of mist formed at the source by a simple rheological concept. Previous methods attempted to contain the mist once formed. The new approach exploits the ability of soluble. high molecular weight polymers to contribute significant elasticity to fluids at low concentrations. It was found that a small amount (less than 100 ppm) of polyisobutylene (PIB) was extremely effective in suppressing mist formation for straight mineral oil cutting fluids. Subsequent plant pilot tests confirmed these results, yielding 70-90% oil mist reductions using only 20-100 ppm PIB additions. In addition. no adverse impact was observed on the machined part quality or on fluid properties. Preliminary studies have shown the potential for the analogous development of mist suppressants for water-based cutting fluids.