剛玉質(zhì)自流澆注料流動(dòng)性能的研究和應(yīng)用_圖文

1、第27卷第3期硅酸鹽通報(bào)Vol .27No .32008年6月BULLETI N OF T HE CH I N ESE CERAM I C S OC I ETY June,2008剛玉質(zhì)自流澆注料流動(dòng)性能的研究和應(yīng)用李朝云,涂軍波,魏軍從(河北理工大學(xué)材料學(xué)院,唐山063009摘要:以棕剛玉為主要原料,研究了減水劑、活性氧化鋁微粉、硅微粉和水泥對(duì)剛玉質(zhì)自流澆注料流動(dòng)性能的影響。研究結(jié)果表明:通過(guò)選擇合適的減水劑和微粉及水泥加入量,可以獲得自流性能良好的澆注料,并將其應(yīng)用于某鋼廠80噸精煉鋼包包底,使用壽命和座磚同步,滿足了生產(chǎn)要求。關(guān)鍵詞:剛玉澆注料;自流值;減水劑;微粉中圖分類(lèi)號(hào):T Q17

2、5.732文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):100121625(20080320593204Research and Appli ca ti on of Corundum Ba sed Self 2flow i n g Ca st ablesL I Chao 2yun,TU Jun 2bo,W E I Jun 2cong(College of Material Science and Engineering,Hebei Polytechnic University,Tangshan 063009,China Abstract:The effects of dis persent,active m icr

3、 o 2alu m ina powder,m icr osilica and ce ment on fl owability of corundu m based self 2fl owing castables were investigated .B r own corundum was the main starting materials .The research showed that castables of good self 2fl owability would be obtained by choosing suitable kinds and additi ons of

4、 dis persent and m icr opowder and ce ment .The above castables were used in the bott om of refining ladle with volu me of 80t ons .The service life matched that of well bl ocks .The castables can meet the require ments of p r oducti on .Key words:corundum based castables;self 2fl ow value;dis persa

5、nt;m icr opowder作者簡(jiǎn)介:李朝云(19812,男,碩士研究生.主要從事耐火材料的研究與應(yīng)用.E 2mail:lcy1924111引言耐火振動(dòng)澆注料具有生產(chǎn)周期短、節(jié)約能源、整體性好、適應(yīng)能力強(qiáng)等優(yōu)點(diǎn),得到了廣泛的應(yīng)用。但振動(dòng)澆注料也有一些缺點(diǎn),例如,受工人現(xiàn)場(chǎng)操作技術(shù)影響,振動(dòng)器振動(dòng)不足,導(dǎo)致澆注體密度不夠;振動(dòng)過(guò)度顆粒產(chǎn)生偏析,而且振動(dòng)捧抽出時(shí)易留下空洞;另外振動(dòng)器噪音過(guò)大,影響施工環(huán)境。特別是施工空間狹小時(shí),就無(wú)法使用振動(dòng)澆注料。而自流澆注料不需振動(dòng)器振動(dòng)即可自動(dòng)流動(dòng)、攤平、密實(shí)和固化,避免了振動(dòng)澆注料存在的問(wèn)題。筆者以棕剛玉為主要原料,研究了減水劑、微粉及水泥對(duì)自流料流動(dòng)

6、性能的影響,在此基礎(chǔ)上研制出的剛玉質(zhì)自流料應(yīng)用于鋼包底,取得了滿意的效果。2實(shí)驗(yàn)2.1主要原料采用粒度為85mm 、53mm 、31mm 、10mm 和12.599 3.12-0.4415503hr12.5160 3.32-2.22注:因本校測(cè)試抗折、耐壓強(qiáng)度設(shè)備量程有限,故沒(méi)能測(cè)試到具體值。5結(jié)論以棕剛玉為主要原料,加入適量的微粉和水泥,選擇聚磷酸鹽為減水劑,開(kāi)發(fā)出的剛玉自流澆注料性能良好,在某鋼廠成功使用。參考文獻(xiàn)1韓行祿.不定形耐火材料M.北京:冶金工業(yè)出版社,2004:2922293.2張三華,李再耕.減水劑對(duì)超低水泥A l2O32Cr2O32Zr O2質(zhì)澆注料流變性能的影響J.耐火材

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