改性树脂对金属复合不烧Al_2O_3-C滑板性能的影响  

Effect of modified resin on properties of metal composite unfired Al_2O_3-C slide plates

作　　者：牛智旺 李晖 刘新红[2] 吕培中 尚俊利 王长春 方岩震 王大军 

机构地区：[1]河南省伯马股份有限公司,河南新乡453000 [2]郑州大学高温材料研究所,河南郑州450052

出　　处：《耐火材料》2013年第3期204-206,共3页Refractories

基　　金：河南省科技创新杰出青年基金资助(124100510019);河南省重点科技攻关项目资助(112102210095);河南省教育厅自然科学基金资助(2011A430024)

摘　　要：以板状刚玉、α-Al2O3微粉、鳞片石墨、金属铝粉和硅粉为主要原料,外加质量分数4%的热固性酚醛树脂和改性树脂为结合剂,制备了金属复合不烧Al2O3-C滑板试样,并研究了改性树脂加入量(质量分数分别为0、1%、2%、3%)对试样于400～1 000℃埋炭(石墨)和空气条件下烧后性能的影响。结果表明:加入改性树脂可明显提高两种气氛烧后试样的中低温强度,但改性树脂对试样的抗氧化性略有负面影响。选取改性树脂加入质量分数为2%的配方所制备的不烧滑板在120 t钢包试用,取得了良好效果,与不加改性树脂的普通不烧滑板相比,平均连滑率从1.3次提高至2.2次。The metal composite unfired Al2O3-C slide plate specimens were prepared using tabular corun- dum,α-Al2O3 micropowder,flake graphite,aluminum powder and silicon powder as main starting materials, extra adding 4 mass% thermoset phenol formaldehyde resin and modified resin as binders. Effects of mod- ified resin additions （0,1% ,2% and 3% ,in mass） on properties of specimens fired at 400-1 000 ℃ in car- bon embedded （graphite） condition and in air,respectively,were investigated. The results show that modi- fied resin can obviously increase the strength at medium and low temperatures, but it has a little negative effect on oxidation resistance of the specimens. The unfired slide plates with 2% modified resin were used in a 120 t ladle and achieved a good effect. The average service life of the developed slide plates is 2.2 heats,and that of normal unfired slide plates without modified resin is 1.3 heats.

关 键 词：不烧滑板 改性树脂 抗氧化性 低温强度 

分 类 号：TQ175[化学工程—硅酸盐工业]