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D0I:10.13374/i.i8sm1001t63.2010.02.016 第32卷第2期 北京科技大学学报 Vol 32 No 2 2010年2月 Journal of Un iversity of Science and Technobgy Beijng Feb 2010 刚玉质自流浇注料流变性和流动性的关系 曹喜营)王战民)陈卢)李再耕)王金相)洪彦若) 1)北京科技大学材料科学与工程学院,北京100083 2)中钢集团洛阳耐火材料研究院有限公司河南省特种耐火材料重点实验室,洛阳471039 摘要采用浇注料流变仪、L型流动性测试装置和自流值测定装置,测定了加水量、分散剂(F$10)、纯铝酸钙水泥和α~ AbO3微粉对刚玉质自流浇注料的流变性和流动性的影响,并分析了流变性和流动性之间的关系·实验结果表明:随加水量增 加(质量分数4.9%~5.%),相对屈服应力、相对塑性黏度和相对平均黏度均逐渐减小,自流值和流动速度逐渐增大·随分 散剂Fs10加入量的增加(质量分数0.1%~0.20%),相对屈服应力、相对塑性黏度和相对平均黏度逐渐减小,自流值和流动 速度逐渐增大;分散剂F$10加入量继续增大时(0.20%~0.22%),相对屈服应力、相对塑性黏度和相对平均黏度显著增大, 而自流值和流动速度大幅下降。随纯铝酸钙水泥加入量增加(质量分数%~4%),流变参数和流动参数有一定的变化,但变 化不明显·随α~Ab03微粉加入量的增加(质量分数9%~1%),相对屈服应力和相对平均黏度均减小,相对塑性黏度变化 不大,自流值变化不大,流动速度加快·刚玉质自流浇注料流变参数和流动参数之间的关系为:自流值和相对屈服应力有较好 的相关性,而流动速度和相对平均黏度有较好的相关性 关键词刚玉;浇注料:流变性:流动性 分类号T0175.1+2 Relationsh ip betw een rheological properties and flow ability of a corundum based self-flow castab le CAO Xiying 2.WANG Zhanm in.CHEN L,LI Zaigeng?,WANG Jinxiang,HONG Yan-no) 1)School of Materals Science and Engneerng University of Science and Technobgy Beijng Beijing 100083 China 2)Henan Key Laboratory of Advanced Refmactories SinosteelLuoyang Institte of Refmactories Researh Co Ld,Luoyang 471039,China ABSTRACT W ith the castable theameter Lbox flowability test apparatus and self-flow test apparatus the influence of water addi- tion dispersant content (FS10).alm inate cement con tent and aA0s content on the theology and flowability of a conundumbased self-flow castable were researched and the relationship between theological properties and flowability of the castable were analyzed The results show that w ith the increase of water addition (4.to5.mass fraction).the relative yiel stress relative plstic vis" cosity and relative average viscosity decrease but the self-flow value and flow vebcity increase W ith the increase of dispersant FS10 (0.16%to0.20%.mass fraction).the relative yiel stress relative plastic viscosity and relative average viscosity decrease but the self-flow value and flow velocity increase W ith more dispersant FS10 additions (0.20%o0.22).the relative yiel stress rlative plastic viscosity and relative average viscosity increase markedly but the self-flow value and self-flow velocity decrease remarkably W ith the increase of alm inate cement (1%to mass fraction).the theolgy and flowability parmeters have same change but not obvious W ith the increase of aAkOs addition (9 to 12%,mass fraction),the relative yield stress and relative average viscosity decrease the relative plastic viscosity and self-flow value have little change but the self-flow velocity increase The relationship be- teen theolgy parmeters and flowability parameters of the conndum-based self-flow castable is shown as the follow ing the self flow value and relative yiel stress have good relevance the flow velocity and relative average viscosity have good relevance KEY W ORDS conndum:castables theological property:flowability 耐火浇注料流动性包含三个特性:流动程度、流动速度和偏析性,流动程度是指流动可能达到的最 收稿日期:2009-07-09 作者简介:曹喜营(l973男,高级工程师,硕士,Email lyex@yeah net第 32卷 第 2期 2010年 2月 北 京 科 技 大 学 学 报 JournalofUniversityofScienceandTechnologyBeijing Vol.32No.2 Feb.2010 刚玉质自流浇注料流变性和流动性的关系 曹喜营 1‚2) 王战民 1‚2) 陈 卢 2) 李再耕 2) 王金相 1‚2) 洪彦若 1) 1) 北京科技大学材料科学与工程学院‚北京 100083 2) 中钢集团洛阳耐火材料研究院有限公司河南省特种耐火材料重点实验室‚洛阳 471039 摘 要 采用浇注料流变仪、L型流动性测试装置和自流值测定装置‚测定了加水量、分散剂 (FS10)、纯铝酸钙水泥和 α-- Al2O3微粉对刚玉质自流浇注料的流变性和流动性的影响‚并分析了流变性和流动性之间的关系.实验结果表明:随加水量增 加 (质量分数 4∙9% ~5∙3% )‚相对屈服应力、相对塑性黏度和相对平均黏度均逐渐减小‚自流值和流动速度逐渐增大.随分 散剂 FS10加入量的增加 (质量分数 0∙16% ~0∙20% )‚相对屈服应力、相对塑性黏度和相对平均黏度逐渐减小‚自流值和流动 速度逐渐增大;分散剂 FS10加入量继续增大时 (0∙20% ~0∙22% )‚相对屈服应力、相对塑性黏度和相对平均黏度显著增大‚ 而自流值和流动速度大幅下降.随纯铝酸钙水泥加入量增加 (质量分数 1% ~4% )‚流变参数和流动参数有一定的变化‚但变 化不明显.随 α--Al2O3微粉加入量的增加 (质量分数 9% ~12% )‚相对屈服应力和相对平均黏度均减小‚相对塑性黏度变化 不大‚自流值变化不大‚流动速度加快.刚玉质自流浇注料流变参数和流动参数之间的关系为:自流值和相对屈服应力有较好 的相关性‚而流动速度和相对平均黏度有较好的相关性. 关键词 刚玉;浇注料;流变性;流动性 分类号 TQ175∙1 +2 Relationshipbetweenrheologicalpropertiesandflowabilityofacorundumbased self-flowcastable CAOXi-ying 1‚2)‚WANGZhan-min 1‚2)‚CHENLu 2)‚LIZai-geng 2)‚WANGJin-xiang 1‚2)‚HONGYan-ruo 1) 1) SchoolofMaterialsScienceandEngineering‚UniversityofScienceandTechnologyBeijing‚Beijing100083‚China 2) HenanKeyLaboratoryofAdvancedRefractories‚SinosteelLuoyangInstituteofRefractoriesResearchCo.Ltd.‚Luoyang471039‚China ABSTRACT Withthecastablerheometer‚L-boxflowabilitytestapparatusandself-flowtestapparatus‚theinfluenceofwateraddi- tion‚dispersantcontent(FS10)‚aluminatecementcontentandα-Al2O3contentontherheologyandflowabilityofacorundum-based self-flowcastablewereresearched‚andtherelationshipbetweenrheologicalpropertiesandflowabilityofthecastablewereanalyzed. Theresultsshowthatwiththeincreaseofwateraddition(4∙9% to5∙3%‚massfraction)‚therelativeyieldstress‚relativeplasticvis- cosityandrelativeaverageviscositydecrease‚buttheself-flowvalueandflowvelocityincrease.WiththeincreaseofdispersantFS10 (0∙16% to0∙20%‚massfraction)‚therelativeyieldstress‚relativeplasticviscosityandrelativeaverageviscositydecrease‚butthe self-flowvalueandflowvelocityincrease.WithmoredispersantFS10additions(0∙20% to0∙22% )‚therelativeyieldstress‚relative plasticviscosityandrelativeaverageviscosityincreasemarkedly‚buttheself-flowvalueandself-flowvelocitydecreaseremarkably. Withtheincreaseofaluminatecement(1% to4%‚massfraction)‚therheologyandflowabilityparametershavesomechange‚butnot obvious.Withtheincreaseofα-Al2O3addition(9% to12%‚massfraction)‚therelativeyieldstressandrelativeaverageviscosity decrease‚therelativeplasticviscosityandself-flowvaluehavelittlechange‚buttheself-flowvelocityincrease.Therelationshipbe- tweenrheologyparametersandflowabilityparametersofthecorundum-basedself-flowcastableisshownasthefollowing:theselfflow valueandrelativeyieldstresshavegoodrelevance;theflowvelocityandrelativeaverageviscosityhavegoodrelevance. KEYWORDS corundum;castable;rheologicalproperty;flowability 收稿日期:2009--07--09 作者简介:曹喜营 (1973— )‚男‚高级工程师‚硕士‚E-mail:lycxy@yeah.net 耐火浇注料流动性包含三个特性:流动程度、流 动速度和偏析性.流动程度是指流动可能达到的最 DOI :10.13374/j.issn1001—053x.2010.02.016
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