共查询到20条相似文献,搜索用时 15 毫秒
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引进铁水预处理工艺分离出精炼功能,连铸比提高,近25年来炼钢发生了很大的变化。随着这种变化也要求提高生产率和品质以及降低成本等。为适应这些要求耐火材料技术也取得了很大的发展。本文以新目铁君津厂和室兰厂的具体例子,介绍了炼钢工艺中耐火材料技术的发展情况。 相似文献
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Zhang Xiaohui Peng Xigao 《中国耐火材料》2011,(3)
YB/T 4111-2002 1 Scope This standard specifies the classification,brand,technical requirements,test methods,inspection rules,marking,packing,transportation,storage,and quality certificate of nozzle bricks and well 相似文献
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《中国耐火材料》2010,19(1):35-37
正GB/T2275-2007 1Scope This standard specifies the classification,technical requirements,test methods,quality appraisal procedures,marking,packing,transportation,storage and quality certificate of magnesia bricks and magnesia alumina bricks.This standard is applicable to burned magnesia bricks and magnesia alumina bricks for industries of 相似文献
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针对陶瓷生产企业在仿古砖无光釉生产应用过程中质量不稳定的原因进行了分析,阐述了无光釉料在生产工艺加工过程中的具体操作规程以及各步骤应注意的控制方法。 相似文献
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分析讨论了蜡石砖的生产工艺特点及与叶蜡石加热过程相变化的关系。叶蜡石灼烧减量少,脱水缓慢,脱水后晶体结构不变,体积稳定,因此蜡石不用煅烧熟料,可以直接制砖,由于加热过程中叶蜡石脱水膨胀及石英变体膨胀,使制品体积密度降低,气孔率增大,因此要通过高压(>50MPa)成型,使砖坯致密化来保证制品的质量;制品的烧成温度,应该是控制石英大量转变为方石英的温度,一般不超过1200℃。 相似文献
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阐述了攀钢钛矿渣的微观结构,利用其制实心砖的原材料要求,研究了胶凝材料中的水泥搀量及集料配合比,讨论了各种因素对制品强度的影响。通过实验和经济分析确定了胶凝材料中的水泥搀量为20%、水胶比为0.44,水淬渣与慢冷渣各半,成型压力为800kN,前后共静养5d,生产的砖块成本低、强度高,符合国家标准对建筑用砖的强度要求,市场应用前景看好。 相似文献
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K. N. Demidov O. F. Shatilov A. M. Lamukhin S. D. Zinchenko A. A. Babenko Yu. A. Dmitrienko T. V. Borisova B. A. Sarychev V. G. Ovsyannikov O. B. Voronina 《Refractories and Industrial Ceramics》2003,44(1):13-16
Tests carried out at the Severstal Joint-Stock Co. and Magnitogorskii Iron-and-Steel Works JSC showed that a lime-magnesia flux containing 30 – 35% MgO used in the converter steelmaking process produced a favorable effect on the refractory lining resistance. Compositions for high-magnesia granules (50 – 65% MgO) were developed, their properties characterized, and the rate of solution in the slag melt was determined. Using these granules in the converter process makes it possible to increase the service life of periclase-carbon refractories for converter linings. 相似文献
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分析了煤种、炉温、运行管理、装置开停车及烧嘴等对多喷嘴对置式水煤浆气化炉运行和拱顶耐火砖使用寿命的影响。通过优化操作,拱顶耐火砖运行周期已延长至15000h,标志着多喷嘴对置式水煤浆气化技术的工业应用更趋成熟、完善。 相似文献
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《中国耐火材料》2015,(1)
In this paper both experimental and analytical approaches to provide the inputs for creep modeling of refractories including a newly developed high temperature compressive creep machine and an inverse estimation procedure of creep law parameters are briefly introduced.Besides,a modified shear test is applied to determine the cohesion and friction angle of refractories under shear state. A RH snorkel equipped with magnesia- chromite bricks is chosen for a case study of thermomechanical simulation applying the classical creep model and Drucker-Prager creep model available in the finite element code ABAQUS,respectively. Afterwards,thermal stresses and joint opening of magnesia- chromite bricks during a process cycle are compared to distinguish the impact of these two creep models. 相似文献
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This standard is suitable to the fireclay bricks for blast furnace. Classification Shape Dimension According to physical chemical indexes the brick can be divided into two trademarks: ZGN- GN-.…… 《中国耐火材料》2007,16(3):33-34
This standard is suitable to the fireclay bricks for blast furnace. 相似文献
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1 ScopeThis standard specifies the classification,techni-cal requirements,test methods,quality appraisal pro-cedures,marking,packing,transportation,storage and quality certificate of magnesia bricks and magnesia alumina bricks. 相似文献