(1. 北京科技大學(xué) 材料科學(xué)與工程學(xué)院， 北京 100083;
2. 中南大學(xué) 材料科學(xué)與工程系， 長(zhǎng)沙 410083)
摘 要: 運(yùn)用平均流動(dòng)模型求解混合潤(rùn)滑軋制變形區(qū)入口膜厚問(wèn)題時(shí)，提出了混合因子φm，它綜合了流動(dòng)因子φx和接觸因子φc 對(duì)入口膜厚的影響，簡(jiǎn)化了軋制潤(rùn)滑模型。計(jì)算和實(shí)驗(yàn)表明，在流體潤(rùn)滑條件下，表面粗糙效應(yīng)對(duì)形膜亦有一定的影響，也即混合因子φm還適用于流體潤(rùn)滑軋制，且修正了未考慮表面粗糙效應(yīng)而引起的不足。
關(guān)鍵字: 軋制； 混合潤(rùn)滑； 混合因子
（1. College of Materials Science and Engineering, University of Science and Technology Beijing,
Beijing 100083, P.R.China;
2. Department of Materials Science and Engineering, Central South University,
Changsha 410083, P.R.China）
Abstract:A mixed factor is developed to determine the inlet film thickness when the average flow model is applied in the mixedlubrication rolling process. It combines the effects of the flow factor and the contact factor, and simplifies the lubrication model of rolling. The calculated and experimental results show that surface roughness affects the film thickness even in the hydrodynamic lubrication rolling. So the mixed factor is not only applied to the mixed-lubrication rolling but also in the hydrodynamic lubrication rolling.
Key words: rolling; mixed lubrication; mixed factor
