{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"在以8～5mm(18%,质量分数,下同)、5～3mm(18%)、3～1mm(22%)的97高纯镁砂和≤1mm(12%)的97电熔镁砂为骨料,≤0.088mm(20%)的97电熔镁砂,Si02微粉(2%),α-A12O3微粉(5%),亚白刚玉粉(3%)为基质细粉,六偏磷酸钠等为复合分散剂的镁质浇注料基础配方中,分别用5%、8%、15%的铬矿砂(0.833～0.178mm和≤0.088mm的混合料)等量替代≤0.088mm的电熔镁砂制成不同铬矿含量的镁质浇注料试样.分别测试样经110℃24h、1100℃3h和1550℃3h处理后的线变化率、显气孔率和抗折强度,并利用SEM和EDX分析1550℃3h处理后试样的显微结构.结果表明:(1)镁质浇注料中加入适量的铬矿,有利于提高方镁石晶粒间的直接结合强度,使材料抗折强度提高,显气孔率下降;适量微裂纹的产生有利于浇注料抗热震性的提高.铬矿的适宜加入量为5%～8%.(2)SEM和EDX分析表明,试样经1550℃3h处理后,铬矿和镁砂呈相互扩散,并脱溶出二次尖晶石,增强了晶粒间的直接结合程度,从而有效地提高了镁质浇注料的力学性能.","authors":[{"authorName":"吴椿烽","id":"0b285635-fd04-4530-a964-9c49a84f40d4","originalAuthorName":"吴椿烽"},{"authorName":"高里存","id":"a09e1703-4903-45f2-b3bd-dcca99187329","originalAuthorName":"高里存"},{"authorName":"刘斌","id":"54edef78-fe9e-4a78-8c93-494295691f44","originalAuthorName":"刘斌"},{"authorName":"<span style=\"color:red\">钟</span><span style=\"color:red\">黎生</span>","id":"895cb33b-d249-4562-8835-24f206f3ebcb","originalAuthorName":"钟黎生"},{"authorName":"马小斌","id":"8170e65e-f918-4844-bc0f-ac7c77723ba3","originalAuthorName":"马小斌"}],"doi":"10.3969/j.issn.1001-1935.2008.03.013","fpage":"212","id":"42fe260a-2790-4894-92cd-38e1cbf9b93c","issue":"3","journal":{"abbrevTitle":"NHCL","coverImgSrc":"journal/img/cover/NHCL.jpg","id":"55","issnPpub":"1001-1935","publisherId":"NHCL","title":"耐火材料   "},"keywords":[{"id":"56034bcc-85d8-4763-b710-26c1573582cc","keyword":"镁质浇注料","originalKeyword":"镁质浇注料"},{"id":"c9dedf5e-2224-4f97-bdc7-904b482149dd","keyword":"铬矿","originalKeyword":"铬矿"},{"id":"9818f9b9-5c4b-4427-8ce8-985810bbe6bb","keyword":"烧结性能","originalKeyword":"烧结性能"},{"id":"0e7fba5c-781e-481e-bc2f-8c4cae800371","keyword":"抗热震性","originalKeyword":"抗热震性"}],"language":"zh","publisherId":"nhcl200803013","title":"铬矿对镁质浇注料性能的影响","volume":"42","year":"2008"},{"abstractinfo":"以很长半衰期(42×109 a)的β- 衰变的187Re-187Os核对作为大尺度的宇宙核<span style=\"color:red\">钟</span>来量度宇宙的年纪, 是近代天文学与核物理学相结合的又一典范. 这种宇宙时钟是利用裸核187Re与它的衰变子体187Os同位素在共生矿中天然含量的比值来测定时间的. 利用187Re裸核的半衰期通过核物理计算可对中性187Re的半衰期进行修定. ","authors":[{"authorName":"戴光曦","id":"3b3acd4b-8c94-42c4-8606-b24527ec19ac","originalAuthorName":"戴光曦"},{"authorName":"孙志虹","id":"b3356aad-de72-41bb-9942-36b85789b8d0","originalAuthorName":"孙志虹"}],"doi":"10.3969/j.issn.1007-4627.2001.03.006","fpage":"156","id":"0bad3373-d2ea-49dd-9a57-a936e9b6beb8","issue":"3","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论   "},"keywords":[{"id":"a740148b-a590-40fe-bd3d-dd77e0b6527e","keyword":"宇宙核<span style=\"color:red\">钟</span>","originalKeyword":"宇宙核钟"},{"id":"c71eb820-a82b-4d8f-8bbf-db0cb9ddec81","keyword":"哈勃常数","originalKeyword":"哈勃常数"},{"id":"717765fc-ad90-4f72-ac05-f748451911b7","keyword":"退行速度","originalKeyword":"退行速度"},{"id":"2c15d62f-ca68-49f1-a8fa-a542f011b894","keyword":"中性/裸核187Re","originalKeyword":"中性/裸核187Re"},{"id":"da9b89c6-ca0e-45a0-a5ac-b7a45ca77041","keyword":"同位素的天然含量","originalKeyword":"同位素的天然含量"},{"id":"944039ab-47b4-462b-aa38-5606918359e9","keyword":"大爆炸","originalKeyword":"大爆炸"}],"language":"zh","publisherId":"yzhwlpl200103006","title":"宇宙核<span style=\"color:red\">钟</span>","volume":"18","year":"2001"},{"abstractinfo":"从动力学角度,采用离散单元法研究炉料颗粒的受力和运动,建立高炉无<span style=\"color:red\">钟</span>炉顶布料数值计算模型,模拟无<span style=\"color:red\">钟</span>炉顶布料过程和料面形状.模拟与实测对比表明,两者基本吻合,证明离散单元法在高炉无<span style=\"color:red\">钟</span>布料应用中可行,并为高炉无<span style=\"color:red\">钟</span>炉顶布料的机理研究开辟了一条新的途径.","authors":[{"authorName":"林成城","id":"028ddcae-af9a-439f-9cfa-21a3f9b32313","originalAuthorName":"林成城"},{"authorName":"杜鹤桂","id":"324c03df-e3f7-4648-b410-6daf921a1cdc","originalAuthorName":"杜鹤桂"}],"doi":"","fpage":"0","id":"72cbbc8b-bde6-4522-8fb9-62550f00472a","issue":"3","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"a6f6a124-3904-4d51-aa8d-aeb3659e5f39","keyword":"离散单元法","originalKeyword":"离散单元法"},{"id":"fd6036eb-33fa-48fc-b97d-e896ebbb340c","keyword":"无<span style=\"color:red\">钟</span>炉顶","originalKeyword":"无钟炉顶"},{"id":"4ef436f1-2114-4928-9c33-dc75772b5dda","keyword":"布料","originalKeyword":"布料"},{"id":"b9239681-25ae-41fe-b04c-7d665c8a8139","keyword":"料面形状","originalKeyword":"料面形状"},{"id":"44900c0d-e5ec-40aa-b524-2dfca4fe2547","keyword":"数值模拟","originalKeyword":"数值模拟"}],"language":"zh","publisherId":"gt199803002","title":"离散单元法高炉无<span style=\"color:red\">钟</span>炉顶布料模拟研究","volume":"33","year":"1998"},{"abstractinfo":"并罐式无<span style=\"color:red\">钟</span>炉顶的布料操作会产生蛇形偏析,形成不均匀的料面形状,导致料面透气性调节失控的问题.通过开炉布料料面形状的测试结果可知,并罐式无<span style=\"color:red\">钟</span>炉顶料面中心与高炉中心不重合,料面中心发生偏移.为了研究无<span style=\"color:red\">钟</span>布料过程中的料面分布情况,通过建立数学模型,计算炉料颗粒在高炉料面周向上的落点分布,根据落点分布得到料面对称中心位置,并将计算结果与开炉料面形状测试结果对比.根据分析计算结果,从理论出发,提出减小布料过程料流偏析的措施和建议.","authors":[{"authorName":"滕召杰","id":"ef87cffa-8233-4ab9-ad9b-df4300476a03","originalAuthorName":"滕召杰"},{"authorName":"程树森","id":"7b3bce1d-4727-4b73-8896-c762a7e6b938","originalAuthorName":"程树森"},{"authorName":"赵国磊","id":"ae123498-b9ec-4193-ad7e-956499094ce7","originalAuthorName":"赵国磊"}],"doi":"","fpage":"5","id":"83f812ed-40d4-4cdb-9595-cb6a43cb0027","issue":"6","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"9eef5a70-28ec-4fc2-8f5d-d29d7ee3259b","keyword":"并罐式","originalKeyword":"并罐式"},{"id":"e294b382-29a3-4c58-bfbc-fb15b4c376ff","keyword":"布料操作","originalKeyword":"布料操作"},{"id":"51974729-1eaa-413b-877f-168cbe3b7f11","keyword":"炉料偏析","originalKeyword":"炉料偏析"},{"id":"90748970-363e-4c26-a702-d8082989a208","keyword":"落点","originalKeyword":"落点"}],"language":"zh","publisherId":"gtyjxb201406002","title":"并罐式无<span style=\"color:red\">钟</span>炉顶布料料面中心研究","volume":"26","year":"2014"},{"abstractinfo":"济钢1 750 m3高炉采用串罐无料<span style=\"color:red\">钟</span>炉顶布料系统.建立了布料模型,并在高炉生产中不断验证,逐步消化和掌握了无料<span style=\"color:red\">钟</span>技术,摸索出一系列无料<span style=\"color:red\">钟</span>炉顶布料的相关规律;建立了布料矩阵调节的基本准则,以\"稳\"为前提,以\"平台漏斗\"理论为依据,充分发挥了布料矩阵技术优势,确保高炉稳定顺行.研究结果表明:焦平台一旦确定,靠微调矿石矩阵可以调整煤气流的合理分布,达到维持矿焦比合理分布的控制目标.通过布料矩阵的不断优化,使高炉的顺行状况改善,高炉的利用系数达到2.35 t/(m3·d).","authors":[{"authorName":"李传辉","id":"dfa33d81-a8ae-46d1-b85b-be2438068ebd","originalAuthorName":"李传辉"},{"authorName":"安铭","id":"677a2f42-1411-4c3f-9b82-cc61b0985620","originalAuthorName":"安铭"},{"authorName":"高征铠","id":"7e7e1c72-397f-437e-8454-f0100ffff4bc","originalAuthorName":"高征铠"},{"authorName":"戴建华","id":"8f67c47e-8918-41e4-8e28-7d9182525fc4","originalAuthorName":"戴建华"}],"doi":"","fpage":"6","id":"d0acc839-9040-4391-8886-7c91a44f23a6","issue":"5","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"9a5220bd-1433-4b0a-b064-fbb0efc0434f","keyword":"高炉","originalKeyword":"高炉"},{"id":"93769399-c042-473e-b088-6eaca773f960","keyword":"无料<span style=\"color:red\">钟</span>炉顶","originalKeyword":"无料钟炉顶"},{"id":"ef6e26df-0e71-4e04-8bba-bd1f01551cea","keyword":"布料矩阵","originalKeyword":"布料矩阵"},{"id":"1ae7033d-e689-415e-8f65-40701f0be3c0","keyword":"焦平台","originalKeyword":"焦平台"}],"language":"zh","publisherId":"gt200605002","title":"高炉无料<span style=\"color:red\">钟</span>炉顶布料规律探索与实践","volume":"41","year":"2006"},{"abstractinfo":"为提高无<span style=\"color:red\">钟</span>高炉的布料精度，提出了一种基于粒子群算法的环形布料优化方法。在分析环形布料工艺特点的基础上，按控制方法将环形布料分为常规多环布料和步进式同心圆布料，以料面形状误差为控制目标建立了环形布料的优化控制数学模型，并设计了粒子群算法进行优化求解。最后将优化模型应用到2580 m3无<span style=\"color:red\">钟</span>高炉，利用该优化模型分析了环形布料工艺与布料精度之间的关系。计算结果表明：溜槽倾角档位数量的增加有利于提高常规多环布料的布料精度，但同时导致布料优化控制复杂化，步进式同心圆布料的布料精度高于任意有限多个溜槽倾角档位的常规多环布料，适合充分发挥无<span style=\"color:red\">钟</span>炉顶布料灵活的优势，实现期望的炉料分布。","authors":[{"authorName":"马财生","id":"88f9ef02-68ba-423a-8d85-ffff4688617e","originalAuthorName":"马财生"},{"authorName":"任廷志","id":"efa5fea4-9b8a-4e2d-8e75-8c9fb49acda0","originalAuthorName":"任廷志"},{"authorName":"杨二旭","id":"6fd4995a-8124-47b2-8515-bfa19dc940a5","originalAuthorName":"杨二旭"}],"doi":"10.13228/j.boyuan.issn1001-0963.20160012","fpage":"15","id":"8b208d66-205b-49e9-9ffe-53dc7afb5524","issue":"12","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"b75d5518-f166-4244-9160-d16c5d6c04bf","keyword":"无<span style=\"color:red\">钟</span>炉顶","originalKeyword":"无钟炉顶"},{"id":"fd25ff37-a005-4068-aad5-090b08ba367e","keyword":"环形布料","originalKeyword":"环形布料"},{"id":"de7756d1-131b-460d-a29f-cfd26af17f2f","keyword":"优化模型","originalKeyword":"优化模型"},{"id":"d07349df-e073-4106-9df2-2230b4c68bab","keyword":"布料精度","originalKeyword":"布料精度"},{"id":"25fefd07-fc4a-44a0-b470-6cd12402daf1","keyword":"粒子群算法","originalKeyword":"粒子群算法"}],"language":"zh","publisherId":"gtyjxb201612004","title":"无<span style=\"color:red\">钟</span>高炉环形布料优化及布料精度","volume":"28","year":"2016"},{"abstractinfo":"攀钢炼铁厂利用高炉更换大、小<span style=\"color:red\">钟</span>机会详细分析了装料设备使用寿命短的问题,并循序渐进地、有重点地分别加以改造,再进一步对大钟及大钟斗进行改进,以提高装料设备使用寿命,为高炉稳定高产奠定了基础.","authors":[{"authorName":"薛文坦","id":"8577df60-39be-4c5a-a84d-7ae6386d8d12","originalAuthorName":"薛文坦"},{"authorName":"刘树芳","id":"8b8d5e1f-9f7c-4b19-98ca-b55600359cee","originalAuthorName":"刘树芳"}],"doi":"10.3969/j.issn.1001-1447.2001.05.003","fpage":"11","id":"dab68524-ca24-4bf7-b1fa-cba05c1123f0","issue":"5","journal":{"abbrevTitle":"GTYJ","coverImgSrc":"journal/img/cover/GTYJ.jpg","id":"29","issnPpub":"1001-1447","publisherId":"GTYJ","title":"钢铁研究"},"keywords":[{"id":"e9a10fba-1777-480a-a57a-d222a65e6493","keyword":"装料设备","originalKeyword":"装料设备"},{"id":"939180c5-72f2-45bd-adeb-dd3be19104f5","keyword":"长寿化","originalKeyword":"长寿化"},{"id":"1f64f797-de0c-4aff-9f33-ec9f37222ae8","keyword":"大钟","originalKeyword":"大钟"},{"id":"2b518669-e3a2-46b9-9b88-350633a005a9","keyword":"小<span style=\"color:red\">钟</span>","originalKeyword":"小钟"}],"language":"zh","publisherId":"gtyj200105003","title":"攀钢双<span style=\"color:red\">钟</span>炉顶装料设备长寿化的改造","volume":"","year":"2001"},{"abstractinfo":"结合无<span style=\"color:red\">钟</span>高炉布料的主要规律，开发出高炉布料模型。该模型有以下主要特点：炉料出下料罐的运动为“烟道流”；原始料面假设条件的改进；料面形状多段线性化处理；料面下降分为二部分对新料面修正。利用该模型可以求解料面形状，并计算炉料的矿焦比（O/C）。","authors":[{"authorName":"于要伟","id":"e4451db9-2ed9-46ea-81f2-049e96f694ea","originalAuthorName":"于要伟"},{"authorName":"白晨光","id":"cc3da566-ece8-4fe3-9d5c-60de6e28aae6","originalAuthorName":"白晨光"},{"authorName":"梁栋","id":"ef19f7db-ac50-4a0a-a44c-7a061c4dfdd8","originalAuthorName":"梁栋"},{"authorName":"夏锋","id":"1bdcf848-ad3f-4c01-87af-e8fb0cc9354a","originalAuthorName":"夏锋"},{"authorName":"牛文娟","id":"3860a4d4-348a-42c9-bfdd-b5d264b24527","originalAuthorName":"牛文娟"}],"categoryName":"|","doi":"","fpage":"26","id":"7283e1bd-0e7b-4de9-b725-25bf45ba84f0","issue":"11","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"aaddcf9c-7a2f-4c2b-b011-21b2869c8e77","keyword":"高炉;布料模型;布料溜槽","originalKeyword":"高炉;布料模型;布料溜槽"}],"language":"zh","publisherId":"0449-749X_2008_11_15","title":"无<span style=\"color:red\">钟</span>高炉布料数学模型的研究","volume":"43","year":"2008"},{"abstractinfo":"结合无<span style=\"color:red\">钟</span>高炉布料的主要规律,开发出高炉布料模型.该模型有以下主要特点;炉料出下料罐的运动为\"烟道流\";原始料面假设条件的改进;料面形状多段线性化处理;料面下降分为二部分对新料面修正.利用该模型可以求解料面形状,并计算炉料的矿焦比(O/C).","authors":[{"authorName":"于要伟","id":"70dc32b3-baf0-4dfe-87cf-698878ddbb19","originalAuthorName":"于要伟"},{"authorName":"白晨光","id":"8e5fb0d1-a7c8-4cda-95de-bca4641c0d69","originalAuthorName":"白晨光"},{"authorName":"梁栋","id":"81482418-7272-4189-85a2-1c8e617f0431","originalAuthorName":"梁栋"},{"authorName":"夏锋","id":"440363c6-3ed0-49da-916c-343d5a319123","originalAuthorName":"夏锋"},{"authorName":"牛文娟","id":"d026e2c3-0eb2-4511-a824-2c8fac316cad","originalAuthorName":"牛文娟"}],"doi":"","fpage":"26","id":"e9126dbb-ccbe-48e1-91b5-a931ee7453cc","issue":"11","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"08722e53-a7f6-47f0-a84f-eefb433b0faf","keyword":"高炉","originalKeyword":"高炉"},{"id":"de921a1f-d0bd-45f0-ad7d-d8fd974410c4","keyword":"布料模型","originalKeyword":"布料模型"},{"id":"76f429a2-0d80-46e7-8708-2a70f7e8a369","keyword":"布料溜槽","originalKeyword":"布料溜槽"}],"language":"zh","publisherId":"gt200811005","title":"无<span style=\"color:red\">钟</span>高炉布料数学模型的研究","volume":"43","year":"2008"},{"abstractinfo":"应用无料<span style=\"color:red\">钟</span>多环布料数学模型对某高炉布料后料面进行模拟,寻求中心开放较平坦的凸台型料面.研究发现,在小角度差条件下布料,很难形成平坦的凸台型料面;只有在大角度差、大环位环数差条件下布料,才有可能得到近似平坦的凸台型料面.增加边缘矿石量和中心焦炭量以及在减少布矿溜槽倾角和增加布焦溜槽倾角的混合布料时,提高料线或增加矿石批重均可实现中心开放较平坦的凸台型料面.同时还发现,调整布料参数时,有时也有无规律现象发生.","authors":[{"authorName":"经文波","id":"c8ecd3e8-0094-4a43-80c4-64fa3c573f9d","originalAuthorName":"经文波"},{"authorName":"经薇","id":"029eb5a0-2bf9-4094-a2ac-d288900debce","originalAuthorName":"经薇"}],"doi":"","fpage":"10","id":"1ba2f188-7a08-407c-9290-807dfd895025","issue":"2","journal":{"abbrevTitle":"GT","coverImgSrc":"journal/img/cover/GT.jpg","id":"27","issnPpub":"0449-749X","publisherId":"GT","title":"钢铁"},"keywords":[{"id":"55e2ee63-2d4a-48e7-b39f-252104232141","keyword":"高炉","originalKeyword":"高炉"},{"id":"41bc4978-d722-480b-87f0-b73226328740","keyword":"无料<span style=\"color:red\">钟</span>","originalKeyword":"无料钟"},{"id":"ba2511e9-9991-47bb-9aec-9f5646633afe","keyword":"料面","originalKeyword":"料面"},{"id":"fd3eaaa0-4a9e-488c-9236-e9858a2b921c","keyword":"模拟","originalKeyword":"模拟"}],"language":"zh","publisherId":"gt201302002","title":"高炉无料<span style=\"color:red\">钟</span>布料料面模拟","volume":"48","year":"2013"}],"totalpage":19,"totalrecord":187}