ZrO2-SiC composite powder was synthesized by carbothermal reduction of zircon in argon atmosphere, and it was used as the additive to prepare Al2O3-C refractories. The effects of heating temperature on the synthesis p...ZrO2-SiC composite powder was synthesized by carbothermal reduction of zircon in argon atmosphere, and it was used as the additive to prepare Al2O3-C refractories. The effects of heating temperature on the synthesis process and the addition of the synthesized composite powder on the properties of the Al2O3-C refractories were investigated. The results show that the synthesized composite powder can be easily obtained by heating the mixture of zircon and carbon black at 1 873 K for 4 h in argon atmosphere, and the relative contents of ZrO2 and SiC in sample reach about 83.7% and 16.3%, respectively. The bulk density, crushing strength and thermal shock resistance of the Al2O3-C refractories can be improved obviously by the addition of the synthesized ZrO2-SiC composite powder.展开更多
Volume 37, Number 3, 2003Effect of microsilica on flowability and flow decay ofAl;O;-SiC-C castables for BF trough （125～127 ）.Chen Zhiqiang, He Xia, Bjorn Myhre, et al. -Al;O;-SiC-Ccastable, Flowability, Microsilic...Volume 37, Number 3, 2003Effect of microsilica on flowability and flow decay ofAl;O;-SiC-C castables for BF trough （125～127 ）.Chen Zhiqiang, He Xia, Bjorn Myhre, et al. -Al;O;-SiC-Ccastable, Flowability, Microsilica, Wo-rkingtime, Reactive alumina. -Effects of microsilica addi-tion and reactive alumina type on flowability, flowdecay and working time of Al;O;-SiC-C castables forBF trough were investigated. The results show that展开更多
Volume 52, Number 3, 2018Dynamic rheology characteristics of MgO slurry/Duan Hongjuan,XueAndang,Fan Suxiao,Huang Liang,Zhang Haijun,Zhang Shaowei,Wang Zhiming,Liao Shibiao//Naihuo Cailiao.-2018,52(3):161Abstract:In or...Volume 52, Number 3, 2018Dynamic rheology characteristics of MgO slurry/Duan Hongjuan,XueAndang,Fan Suxiao,Huang Liang,Zhang Haijun,Zhang Shaowei,Wang Zhiming,Liao Shibiao//Naihuo Cailiao.-2018,52(3):161Abstract:In order to control the hydration reaction of MgO for its use as binder in high quality cement-free castables,the rheology characteristics of MgO slurry were determined by the dynamic rheology medium and small oscillation method.The micro-network structure formation and development of hydration products in MgO slurries with MgO,silica fume,ρ-Al2O3 and extra 0.3%admixtures (boric acid,citric acid,and acetic acid)were studied.The results show that the storage modulus model G’of MgO slurry increases signif-icantly to the maximum with the time firstly-then levels off. The curve of G’-t reflects the MgO hydration structure development.展开更多
Volume 50,Number 6,2016Thoughts for development of China＇s refractories industry-Reviewing＂the 12thFive-Year-Plan＂and prospecting＂the 13thFive-Year-Plan＂/Xu Dianli//Naihuo Cailiao.-2016,50（6）：401Abstract：The ...Volume 50,Number 6,2016Thoughts for development of China＇s refractories industry-Reviewing＂the 12thFive-Year-Plan＂and prospecting＂the 13thFive-Year-Plan＂/Xu Dianli//Naihuo Cailiao.-2016,50（6）：401Abstract：The production,operating,import and export state,and achievement of China＇s refractories during＂the 12-（th）Five-Year-Plan＂period were reviewed.展开更多
Effects of B4 C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks.Effects of dispersion method and content of nanometer carbon black on mechanical properties of low carbon MgO-C materials.
Volume 42, Number 3, 2008Effects of B4C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks.Wang Zhiqiang,Zhu Boquan,Fang Binxiang,et al.(161-164).-Boron carbide,Silicon powder,Low carbon magnesia ca...Volume 42, Number 3, 2008Effects of B4C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks.Wang Zhiqiang,Zhu Boquan,Fang Binxiang,et al.(161-164).-Boron carbide,Silicon powder,Low carbon magnesia carbon bricks,Oxidation resistance-The low-carbon MgO-C specimens with size of 36 mm×36 mm were prepared using fused magnesia,crystalline flake graphite and carbon black as main starting materials,thermoplastic phenol formaldehyde resin as binder,hexamethylene tetramine as fixing tanning agent,Si powder(w(Si)>80%,particle size <0.074 mm)and B4C (d90=36.5 μm) as antioxidant,pressing at 200 MPa and drying at 200 ℃ for 24 h.The oxidation resistance experiments were conducted at 600 ℃,1 000 ℃ and 1 400 ℃ for 2 h,respectively.Effects of B4C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks were studied by comparing the areas of the decarburized layers.The results show that:(1)When Si powder addition is 3%,at 600 ℃ and 1 000 ℃,the specimens with 0.5% B4C performs good oxidation resistance;At 1 400 ℃,the oxidation resistance of the specimens increase with the addition of B4C increasing,and that with 0.7% B4C is the best.(2)When B4C addition is 0.5%,at 600 ℃ and 1 000 ℃,the oxidation resistances of the specimens with 3% and 5% Si powder are silimar,which are better than that of the specimen with 1% Si powder;and at 1 400 ℃,the oxidation resistance of the specimens improves obviously with the addition of Si powder increasing,and that with 5% silicon powder is the best.(3)Based on the results,it is believed that the low-carbon MgO-C bricks with 0.5% B4C and 3% Si powder perform the best oxidation resistance.展开更多
Volume 43, Number 6, 2009Dissolution behaviors of refractory fiber powders in simulated lung fluid. Wang Xitang, Liu Hao, Zhang Baoguo, et al. （401 - 404）. --Bio-soluble refractoofiber, Sim.lated lung fluid, Dissolu...Volume 43, Number 6, 2009Dissolution behaviors of refractory fiber powders in simulated lung fluid. Wang Xitang, Liu Hao, Zhang Baoguo, et al. （401 - 404）. --Bio-soluble refractoofiber, Sim.lated lung fluid, Dissolution behavior--The dissolution behaviors in Gamble solution （simulated lung fluid） of bio-soluble refractory fiber and alumino- silicate refractory fiber were analyzed and compared using ICP - AES, FTIR,展开更多
Influences of fused alumina and β-SiAION additions on rheological properties of MgO-based castables,Coal ash slag wettability on Cr2O3-Al2O3-ZrO2 bricks and its penetration behavior,Slag resistance of MgO-SiC-C compo...Influences of fused alumina and β-SiAION additions on rheological properties of MgO-based castables,Coal ash slag wettability on Cr2O3-Al2O3-ZrO2 bricks and its penetration behavior,Slag resistance of MgO-SiC-C composite,Oxidation resistance of unfired Al/Si-containing low carbon Al2O3-β-SiAlON materials……展开更多
Volume 41, Number 2, 2007 Influences of fused alumina and β-SiAlON additions on rheological properties of MgO-based castables. Ma Chengliang, Zhang Dianwei, Ye Fangbao, et al. (81-84). -Magnesia-based castables, Rheo...Volume 41, Number 2, 2007 Influences of fused alumina and β-SiAlON additions on rheological properties of MgO-based castables. Ma Chengliang, Zhang Dianwei, Ye Fangbao, et al. (81-84). -Magnesia-based castables, Rheological properties,SiAlON,Fused alumina- Magnesia-based castables were prepared by using fused magnesite as aggregate(8-5 mm,5-3 mm,3-1 mm,≤1 mm),27%展开更多
Volume 43,Number 3,2009Study on SiAlON bonded corundum or SiC composites synthesized in different atmospheres. Tan Qinghua,Wang Xitang.(164-169).-SiAlON,Corundum,Silicon carbide,Phase composition,Microstructure-Using ...Volume 43,Number 3,2009Study on SiAlON bonded corundum or SiC composites synthesized in different atmospheres. Tan Qinghua,Wang Xitang.(164-169).-SiAlON,Corundum,Silicon carbide,Phase composition,Microstructure-Using corundum powder,SiC powder,Si3N4 fine展开更多
Influence of heat treatment temperatures on prop- erties of unburned Al2O3-C slide plate bonded with silicone resin Li Yawei,Wang Anjie,Jin Shengli （321 325 ）. --Heat treatment temperature, Silicone resin ,A- lumin...Influence of heat treatment temperatures on prop- erties of unburned Al2O3-C slide plate bonded with silicone resin Li Yawei,Wang Anjie,Jin Shengli （321 325 ）. --Heat treatment temperature, Silicone resin ,A- lumina-carbon slide plate, Air atmosphere--Unburned Al2O3-C slide plate specimens were treated at 240℃ for 24h, and 400℃, 600℃, 800℃ , 1000℃, 1350℃, 1450℃ for 3h respectively in air atmosphere, using tabular corundum, graphite, Al,展开更多
Synthesis of mullite from mechanically activated mixtures of boehmite and silica.Xu Da- yan,Ye Guotian, Liu Lei, et al. （ 161 - 165 ）. -- Mullite , Boehmite, Amorphous silica （ white carbon black）, Mechanical acti...Synthesis of mullite from mechanically activated mixtures of boehmite and silica.Xu Da- yan,Ye Guotian, Liu Lei, et al. （ 161 - 165 ）. -- Mullite , Boehmite, Amorphous silica （ white carbon black）, Mechanical activation, Synthesis -- Mullife was prepared hy 0 -40 h mechanical activation of mixture of boehmite and amorphous silica with Al2O3/SiO2 molar ratio of 3：2 in a high energy ball mill,then heat treatment at 1 100 -1 600 ℃ for 3 h in air.展开更多
Basic research and technical development of refrac- tories achieved during the Tenth Five Year Plan for iron and steel industry. Wang Jinxiang. （321- 326）. -Iron and steel industry, Refractories- The basic research ...Basic research and technical development of refrac- tories achieved during the Tenth Five Year Plan for iron and steel industry. Wang Jinxiang. （321- 326）. -Iron and steel industry, Refractories- The basic research and technical development of refractories achieved during the Tenth Five Year Plan（2001-2005 ） for iron and steel industry in China have been briefly introduced. The developing trend for refractories afterwards has been discussed in this paper.展开更多
Volume 44,Number 3,2010 Concepts and practices of green refractories.Zhou Ningsheng,Li Jiwei,Yu Renhong,et al. （161-170）.-Green refractories,Monolithic refractories,Resource conservation,Energy saving,Environment-an...Volume 44,Number 3,2010 Concepts and practices of green refractories.Zhou Ningsheng,Li Jiwei,Yu Renhong,et al. （161-170）.-Green refractories,Monolithic refractories,Resource conservation,Energy saving,Environment-and eco-friendly,Developing trend -Encouraged by globally advocating environmental protection and low carbon economy,it is imperative to develop ＂green refractories＂ ,an important strategy determining present and future sustainable development of China＇s refractories industry.Concepts and countermeasures for implementing ＂green refractories＂ have been put forward,concentrating on making great efforts in development of monolithic refractories,resource conservation refractories,energy saving refractories and environment-and eco-friendly refractories,for which particular technical approaches and suggestions are given.To this connection,recent practices and developing trends at home and abroad have also been underlined.展开更多
State of China＇ s is Refractories Industry in the First Half of Year 2009 According to the incomplete statistics of the Association of China＇ s Refractories Industry, during the first half year, China＇ s refractori...State of China＇ s is Refractories Industry in the First Half of Year 2009 According to the incomplete statistics of the Association of China＇ s Refractories Industry, during the first half year, China＇ s refractories output was about 9. 037 3 million tons, down 29. 12% year on year. The outputs of dense shaped refractory products and monolithic refractories were 5. 821 9 million tons and 3. 033 5 million tons, down 28.97% and 29.46% year on year, respectively.展开更多
基金Project(50274021) supported by the National Natural Science Foundation of China and Baoshan Iron and Steel Co. Ltd.
文摘ZrO2-SiC composite powder was synthesized by carbothermal reduction of zircon in argon atmosphere, and it was used as the additive to prepare Al2O3-C refractories. The effects of heating temperature on the synthesis process and the addition of the synthesized composite powder on the properties of the Al2O3-C refractories were investigated. The results show that the synthesized composite powder can be easily obtained by heating the mixture of zircon and carbon black at 1 873 K for 4 h in argon atmosphere, and the relative contents of ZrO2 and SiC in sample reach about 83.7% and 16.3%, respectively. The bulk density, crushing strength and thermal shock resistance of the Al2O3-C refractories can be improved obviously by the addition of the synthesized ZrO2-SiC composite powder.
文摘Volume 37, Number 3, 2003Effect of microsilica on flowability and flow decay ofAl;O;-SiC-C castables for BF trough （125～127 ）.Chen Zhiqiang, He Xia, Bjorn Myhre, et al. -Al;O;-SiC-Ccastable, Flowability, Microsilica, Wo-rkingtime, Reactive alumina. -Effects of microsilica addi-tion and reactive alumina type on flowability, flowdecay and working time of Al;O;-SiC-C castables forBF trough were investigated. The results show that
文摘Volume 52, Number 3, 2018Dynamic rheology characteristics of MgO slurry/Duan Hongjuan,XueAndang,Fan Suxiao,Huang Liang,Zhang Haijun,Zhang Shaowei,Wang Zhiming,Liao Shibiao//Naihuo Cailiao.-2018,52(3):161Abstract:In order to control the hydration reaction of MgO for its use as binder in high quality cement-free castables,the rheology characteristics of MgO slurry were determined by the dynamic rheology medium and small oscillation method.The micro-network structure formation and development of hydration products in MgO slurries with MgO,silica fume,ρ-Al2O3 and extra 0.3%admixtures (boric acid,citric acid,and acetic acid)were studied.The results show that the storage modulus model G’of MgO slurry increases signif-icantly to the maximum with the time firstly-then levels off. The curve of G’-t reflects the MgO hydration structure development.
文摘Volume 50,Number 6,2016Thoughts for development of China＇s refractories industry-Reviewing＂the 12thFive-Year-Plan＂and prospecting＂the 13thFive-Year-Plan＂/Xu Dianli//Naihuo Cailiao.-2016,50（6）：401Abstract：The production,operating,import and export state,and achievement of China＇s refractories during＂the 12-（th）Five-Year-Plan＂period were reviewed.
文摘Effects of B4 C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks.Effects of dispersion method and content of nanometer carbon black on mechanical properties of low carbon MgO-C materials.
文摘Volume 42, Number 3, 2008Effects of B4C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks.Wang Zhiqiang,Zhu Boquan,Fang Binxiang,et al.(161-164).-Boron carbide,Silicon powder,Low carbon magnesia carbon bricks,Oxidation resistance-The low-carbon MgO-C specimens with size of 36 mm×36 mm were prepared using fused magnesia,crystalline flake graphite and carbon black as main starting materials,thermoplastic phenol formaldehyde resin as binder,hexamethylene tetramine as fixing tanning agent,Si powder(w(Si)>80%,particle size <0.074 mm)and B4C (d90=36.5 μm) as antioxidant,pressing at 200 MPa and drying at 200 ℃ for 24 h.The oxidation resistance experiments were conducted at 600 ℃,1 000 ℃ and 1 400 ℃ for 2 h,respectively.Effects of B4C and Si antioxidant on oxidation resistance of low-carbon MgO-C bricks were studied by comparing the areas of the decarburized layers.The results show that:(1)When Si powder addition is 3%,at 600 ℃ and 1 000 ℃,the specimens with 0.5% B4C performs good oxidation resistance;At 1 400 ℃,the oxidation resistance of the specimens increase with the addition of B4C increasing,and that with 0.7% B4C is the best.(2)When B4C addition is 0.5%,at 600 ℃ and 1 000 ℃,the oxidation resistances of the specimens with 3% and 5% Si powder are silimar,which are better than that of the specimen with 1% Si powder;and at 1 400 ℃,the oxidation resistance of the specimens improves obviously with the addition of Si powder increasing,and that with 5% silicon powder is the best.(3)Based on the results,it is believed that the low-carbon MgO-C bricks with 0.5% B4C and 3% Si powder perform the best oxidation resistance.
文摘Volume 43, Number 6, 2009Dissolution behaviors of refractory fiber powders in simulated lung fluid. Wang Xitang, Liu Hao, Zhang Baoguo, et al. （401 - 404）. --Bio-soluble refractoofiber, Sim.lated lung fluid, Dissolution behavior--The dissolution behaviors in Gamble solution （simulated lung fluid） of bio-soluble refractory fiber and alumino- silicate refractory fiber were analyzed and compared using ICP - AES, FTIR,
文摘Influences of fused alumina and β-SiAION additions on rheological properties of MgO-based castables,Coal ash slag wettability on Cr2O3-Al2O3-ZrO2 bricks and its penetration behavior,Slag resistance of MgO-SiC-C composite,Oxidation resistance of unfired Al/Si-containing low carbon Al2O3-β-SiAlON materials……
文摘Volume 41, Number 2, 2007 Influences of fused alumina and β-SiAlON additions on rheological properties of MgO-based castables. Ma Chengliang, Zhang Dianwei, Ye Fangbao, et al. (81-84). -Magnesia-based castables, Rheological properties,SiAlON,Fused alumina- Magnesia-based castables were prepared by using fused magnesite as aggregate(8-5 mm,5-3 mm,3-1 mm,≤1 mm),27%
文摘Volume 43,Number 3,2009Study on SiAlON bonded corundum or SiC composites synthesized in different atmospheres. Tan Qinghua,Wang Xitang.(164-169).-SiAlON,Corundum,Silicon carbide,Phase composition,Microstructure-Using corundum powder,SiC powder,Si3N4 fine
文摘Influence of heat treatment temperatures on prop- erties of unburned Al2O3-C slide plate bonded with silicone resin Li Yawei,Wang Anjie,Jin Shengli （321 325 ）. --Heat treatment temperature, Silicone resin ,A- lumina-carbon slide plate, Air atmosphere--Unburned Al2O3-C slide plate specimens were treated at 240℃ for 24h, and 400℃, 600℃, 800℃ , 1000℃, 1350℃, 1450℃ for 3h respectively in air atmosphere, using tabular corundum, graphite, Al,
文摘Synthesis of mullite from mechanically activated mixtures of boehmite and silica.Xu Da- yan,Ye Guotian, Liu Lei, et al. （ 161 - 165 ）. -- Mullite , Boehmite, Amorphous silica （ white carbon black）, Mechanical activation, Synthesis -- Mullife was prepared hy 0 -40 h mechanical activation of mixture of boehmite and amorphous silica with Al2O3/SiO2 molar ratio of 3：2 in a high energy ball mill,then heat treatment at 1 100 -1 600 ℃ for 3 h in air.
文摘Basic research and technical development of refrac- tories achieved during the Tenth Five Year Plan for iron and steel industry. Wang Jinxiang. （321- 326）. -Iron and steel industry, Refractories- The basic research and technical development of refractories achieved during the Tenth Five Year Plan（2001-2005 ） for iron and steel industry in China have been briefly introduced. The developing trend for refractories afterwards has been discussed in this paper.
文摘Volume 44,Number 3,2010 Concepts and practices of green refractories.Zhou Ningsheng,Li Jiwei,Yu Renhong,et al. （161-170）.-Green refractories,Monolithic refractories,Resource conservation,Energy saving,Environment-and eco-friendly,Developing trend -Encouraged by globally advocating environmental protection and low carbon economy,it is imperative to develop ＂green refractories＂ ,an important strategy determining present and future sustainable development of China＇s refractories industry.Concepts and countermeasures for implementing ＂green refractories＂ have been put forward,concentrating on making great efforts in development of monolithic refractories,resource conservation refractories,energy saving refractories and environment-and eco-friendly refractories,for which particular technical approaches and suggestions are given.To this connection,recent practices and developing trends at home and abroad have also been underlined.
文摘State of China＇ s is Refractories Industry in the First Half of Year 2009 According to the incomplete statistics of the Association of China＇ s Refractories Industry, during the first half year, China＇ s refractories output was about 9. 037 3 million tons, down 29. 12% year on year. The outputs of dense shaped refractory products and monolithic refractories were 5. 821 9 million tons and 3. 033 5 million tons, down 28.97% and 29.46% year on year, respectively.
