简介:α-Fe^2O^3材料在陶瓷、催化剂、颜料、防腐、感光材料和磁性材料等方面都有着重要的应用,而且因其原料来源丰富、用途极广,因而受到格外关注。所以,均分散α-Fe^2O^3胶体粒子的制备,不仅在理论研究具有较高价值,而且在实际应用上也有重要意义。
简介:<正>举办地点:中国·天津国际展览中心举办时间:2005-05-25主办单位:中国贸易促进委员会天津分会天津市电镀行业协会协办单位:天津国际展览工程公司联系电话:(86-22)280319582803232828032258传真:(86-22)28032327通讯地址:天津市河西区尖山路102号美联大厦806室电子邮件:yuhua-expo@sina.com内容简介:涂装设备及生产线:油漆涂装、粉末涂装、汽车涂装线、家用电器涂装线、机械手涂装、彩涂板与热镀锌、空气及无气喷枪、磨擦静电喷枪、电晕喷枪、往复喷涂机、喷涂室、固化炉、运输带、工程服务等。机械式及化学式处理:研磨/抛光/打蜡、喷砂或喷丸设备、去毛刺、防锈、清洗、脱脂、化学除锈、
简介:Inordertoimprovetheservicelifeofcorundumliningforinductionfurnace,corundumdryrammingmixwaspreparedusingbrowncorundum,fusedmagnesia,andα-Al2O3micropowderasmainstartingmaterials,andtheinfluenceofα-Al2O3micropowderadditions(0,1%,2%,and3%,inmass)onpropertiesofcorundumdryrammingmixwasinvestigated.Theresultsshowthatafterheattreatingat1600℃,withtheincreaseofα-Al2O3addition,thepermanentchangeindimensionsonheatingofthespecimensdecreasesfirstlyandthenincreases,bulkdensityincreases,apparentporositydecreases,andthecrushingstrengthdeclinesfirstlyandthenenhances;whentheadditionofα-Al2O3is2mass%,thepermanentchangeindimensionsonheatingofthespecimensisrelativelysmallandthecrushingstrengthdecreasesto22.8MPa.TheXRDandSEMresultsshowthatafterfiringat1600℃for3hsmallgranularmagnesiumaluminatespinelformsandiswelldistributed,whichenhancesthedensity.
简介:TheAl2O3-SiCcompositepowderswerepreparedinargonatmosphereusingcoalgangueandcarbonaceousmaterials
简介:Simplethree-pointbendingtestatambienttemperaturecharacterizedthemechanicalbehaviorofburnedAl2O3-Crefractoriesbeforeandafterthermalshockinassociationwiththeprocessingparameters(graphitecontentandcokingtemperature,etc.).Theresultsshowedthatnon-linearplastic-elasticbehaviorunderloadlowerthancoldmodulusofrupture(CMOR)wasregisteredinallspecimensandreallinearelasticbehaviorcouldbeidentifiedafterthefirstload.Thetotaldeformationcouldbedividedintotwoparts,plasticandelasticareas.ThegraphitecontentandjointbondingsystemofcarbonandceramicphaseswereresponsibleformechanicalbehaviorofAl2O3-Crefractories.