(1. 東北大學(xué) 冶金學(xué)院 冶金資源與環(huán)境工程研究所，沈陽 110819；
2. 東北大學(xué) 冶金學(xué)院 冶金資源與環(huán)境工程研究所 遼寧省冶金資源循環(huán)科學(xué)重點實驗室，沈陽 110819)
摘 要: 以攀鋼實際生產(chǎn)高爐渣(CaO-SiO2-Al2O3-MgO-TiO2)為基礎(chǔ)，制備不同TiC含量的渣樣，研究從1500 ℃到1450 ℃含鈦熔渣的觸變特性、電流變特性以及爬桿現(xiàn)象等非牛頓流體現(xiàn)象。結(jié)果表明：渣樣含有8%的TiC，具有明顯的觸變特性。渣樣中不含TiC，剪切應(yīng)力的上行曲線與下行曲線重合，無觸變特性；渣樣中TiC質(zhì)量分?jǐn)?shù)為4%、8%，剪切應(yīng)力隨電場強(qiáng)度的增大而增大，又隨電場強(qiáng)度的減小而減小，熔渣具有明顯的電流變特性。渣樣中TiC質(zhì)量分?jǐn)?shù)為0時，渣樣的剪切應(yīng)力不隨電場強(qiáng)度變化而變化；不同含量TiC的渣樣均不具備爬桿現(xiàn)象。
關(guān)鍵字: 含鈦熔渣；非牛頓流體；觸變特性；電流變特性；爬桿現(xiàn)象
（1. School of Metallurgy, Northeastern University, Shenyang 110819, China;
2. Liaoning Key Laboratory of Metallurgical Resources Recycling Science, Shenyang 110819, China）
Abstract:Slag samples were based on the on-site slag (CaO-SiO2-Al2O3-MgO-TiO2) of Panzhihua Iron and Steel Corporation. Non-Newtonian behaviors, thixotropy, electrorheological effect and rod-climbing effect were investigated from 1500 ℃ to 1450 ℃. The result shows that the slag sample containing 8% TiC has an obvious thixotropy. While for the slag sample without TiC, the up line of shear stress coincides with the down line which means no thixotropy is observed. A remarkably electrorheological response is observed in slag system with 4%TiC and 8%TiC, and the shear stress increases with increasing the electric field and decreases with decreasing the electric field. For the slag sample without TiC, the shear stress is not altered by the electric field. Neither the slag system containing TiC or not containing TiC shows a rod-climbing effect.
Key words: titanium-bearing slag; non-Newtonian fluid; thixotropy; electrorheological effect; rod-climbing effect
