(中南工業(yè)大學(xué)材料科學(xué)與工程系，長(zhǎng)沙410083)
摘 要: 通過(guò)比較流體潤(rùn)滑狀態(tài)下冷軋變形區(qū)摩擦系數(shù)與軋機(jī)允許最小摩擦系數(shù)得出軋制穩(wěn)定因子KS，用于判斷其軋制過(guò)程是否穩(wěn)定。計(jì)算與實(shí)驗(yàn)結(jié)果表明：KS值隨壓下率減小而降低，且當(dāng)KS<1時(shí)出現(xiàn)負(fù)前滑及摩擦力反向，同時(shí)軋后板面質(zhì)量變差。因此,只有當(dāng)壓下率達(dá)到一定值后，KS>1，才能實(shí)現(xiàn)穩(wěn)定軋制并獲得優(yōu)異的軋后板面質(zhì)量。
關(guān)鍵字: 冷軋 潤(rùn)滑 摩擦
（Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083）
Abstract:The stable rolling factor KS was developed to decide the stability of rolling process by comparing the friction coefficient in hydrodynamic lubrication rolling with allowed minimum friction coefficient in rolling. The results in calculations and experiments showed that KS value reduced with decreasing reduction rate, which caused the negative forward slip and a change of friction direction and a poor rolled surface when KS< 1. Only reduction rate reached a certain value and KS>1 can rolling be stable process and good rolled surface quality be obtained.
Key words: cold rolling lubrication friction
