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中国耐火材料（英文版）
中国耐火材料（英文版）

刘解华

季刊

1004-4493

chnr@nhcl.com.cn

0379-64205961

471039

河南洛阳市西苑路43号

中国耐火材料（英文版）/Journal China's Refractories
查看更多>>本刊1992年经国家科委批准创办,由洛阳耐火材料研究院主办,是目前中国耐火材料行业唯一的一本英文杂志,现为季刊。创刊以来己出11卷(包括今年),受到海内外学者、企业家、商人的欢迎。目前与国外二十家杂志建立了交换关系,例如,美国的"陶瓷协会会刊与英国的"耐火材料与陶瓷",德国的"陶瓷论坛",比利时的"硅酸盐",法国的"陶瓷工业",日本的"耐火物"等。并且与几家著名的二次文献检索刊物也建立了密切联系。 目前国内外订户及赠阅数、交换数达1000多本/年,国外订户主要分布在美国、英国、印度、日本、德国、法国、南非、阿根廷以及东南亚和阿拉伯等十几个国家。 本杂志主要反映当前中国耐火材料发展现状。论文内容涉及到原料、工艺、生产及应用方面的新进展,以及设备更新。除研究报告和论文、综述与展望外,还报道了国家公布的一些统计数据,市场信息反迸出口情况等。同时我刊还可刊登广告和厂矿简介。 当时创办该刊的目的主要是让世界了解中国耐火材料,试图在中国耐火材料与世界耐火材料同行之间架起一座信息桥梁。尤其中国已加入世界贸易组织(WTO),我们需要更多地参与国际市场竞争,那么通过《中国耐火材料》的介绍,无疑是一条重要的渠道。 目前为止,由于《中国耐火材料》的介绍或通过《中国耐火材料》的报道,取得与国外商人联系并最终出口耐火材料产品或原料的企业十几家。 众所周知,中国耐火材料通过20多年改革开放,无论在原材料的质量上还是在制成品的质量上都有了长足的进展,有的已接近或超过国外先进水平。由于过去政策封闭,耐火材料行业因与外界联系较少,出口渠道少,出口最也就少。随着我国改革开放政策的深入,与国际同行交流日趋增加,中国耐火材料原料及产品出口也逐年增加,但与中国耐火材料产量相比,远远不够.尤其在国内市场竞争日趋激烈的条件下,寻求出口不乏是重要出路之一。因此需要更多媒体的介入,以便广交国际朋友,扩大出口渠道。
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    Thermomechanical Modelling of Industrial Vessels that Contain Refractory Masonry Linings

    Alain GASSEREric BLONDThomas SAYET
    1-8页
    查看更多>>摘要：Some refractory linings that protect metallic vessels from the hot temperature of the products they contain are made of masonries with or without mortar.The joints play an important role,reducing the stresses in the masonries during heating.Furthermore,the presence of these joints makes the behaviour of the masonry nonlinear and orthotropic.To perform a thermomechanical simulation using a finite element method of an industrial vessel that contains hundreds or thousands of bricks and joints,microscopic models are not suitable due to the high computational time and the management of the behaviour of the joints(opening/closing)which affects the convergence.To overcome these problems,it is proposed to replace the masonry by a homogeneous material that has a behaviour equivalent to the set of bricks and joints,using a periodic homogenization technique.Since the joints can be closed or open,the equivalent material will have a different behaviour according to the joint state.Furthermore,refractory materials have an elastic-viscoplastic behaviour at high temperatures.So,the equivalent material will have an orthotropic elastic-viscoplastic behaviour,requiring a nonlinear homogenisation technique.An overview of this approach developed at University of Orléans is presented with two industrial applications(blast-furnace and steel ladle).
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    The Influence of Biomass Cokes on the Microstructure and Thermal Shock Resistance of MgO-C Refractories

    Patrick GEHREMagzhan KAPESSOVStefan GUHLMartin GRÄBNER...
    9-14页
    查看更多>>摘要：In this study,biomass cokes from sunflower seed hull(SFSH)and wood pellets(WP)were added to a MgO-C batch(3 mass％C)to replace 1.1 mass％ of graphite.After hardening and carbonizing the samples,the influence of the biomass cokes on the microstructure and thermal shock resistance was investigated.The replacement of flaky graphite by carbonized WP and SFSH reduced the bulk density and increased the apparent porosity after pressing and carbonization,but the degree was only marginal.This was confirmed by SEM investigations,where the biomass-coke containing samples exhibited a microstructure with a higher amount of pores between the fine MgO grains.The thermal shock resistance of the porous wood pellet coke containing MgO-C is at the same level as the reference sample but not superior to it.
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    Exploring Dry-out Behaviour and Explosion Resistance of Microsilica-gel Bonded No-cement Castables

    Hong PENG
    15-21页
    查看更多>>摘要：Cement-free castables have attracted significant attention due to their superior thermal-mechanical properties and rapid dry-out in comparison to cement-bonded refractory castables.However,drying industrial-scale specimens can pose more challenges than lab-scale samples.In this study,the dry-out behavior and explosion resistance of microsilica-gel bonded no-cement castables(NCCs)were investigated on both lab-and industrial-scale specimens,employing various drying agents.First,the fast dry-out mechanism was assessed using thermogravimetric analysis(TGA),differential scanning calorimetry(DSC),and scanning electron microscopy(SEM)on lab-scale small samples.Then,the drying behavior of industrial-scale large samples(300 mm x 300 mm x 300 mm cubes,approximately 80 kg)was studied using a unique macro-thermo-balance(macro-TGA).The results showed that EMSIL-DRY® reduced the temperature level for maximum dewatering rate and effectively prevented explosions during heat-up,compared to other polymer fibres.The use of a specialty drying agent(EMSIL-DRY®)significantly improved the explosion resistance,as demonstrated by the production of a perfect 400 kg block fired to 850 ℃ at a rate of 50 ℃·h-1.This research contributes to the understanding and application of cement-free castables in industrial settings.
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    Regulation of Pore Structure and High-temperature Fracture Behavior of CAC-bonded Alumina-Spinel Castables Based on Hydration Design

    Wenjing LIUNing LIAOYawei LI
    22-29页
    查看更多>>摘要：The lamellar hydrates of CAC were designed with the introduction of nano CaCO3 or Mg-Al hydrotalcite(M-A-H),and the effects on the green strength,pore structures,and high-temperature fracture behavior of alumina-spinel castables were investigated.The results show that nano CaCO3 or M-A-H stimulates rapidly the hydration of CAC and the formation of lamellar C4AcH11 or coexistence of C2AH8 and C4AcH11 at 25 ℃.The formation of lamellar hydrates can contribute to a more complicated pore structure,especially in the range of 400-2 000 nm.Meanwhile,the incorporation of well-distributed CaO or MgO sources from nano CaCO3 or M-A-H also regulates the distribution of CA6 and spinel(pre-formed and in-situ).Consequently,the optimized microstructure and complicated pore structure can induce the deflection and bridging of cracks,thus facilitating the consumption of fracture energy and enhancing the resistance to thermal stress damage.
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    Investigation on Effect of Composition on the Drying of Castables with Cement Binder

    Bruno TOUZOHirotaka GOTOUwe KLIPPELJosh SAYRE...
    30-36页
    查看更多>>摘要：Monolithic refractory castables comprising a hydraulic bond are still used in a vast majority of cases because of their flexibility and robustness,despite many developments for chemical as well as non-cement castable binders.The drying can however be a challenge,in particular for deflocculated dense castables of the low cement castable range.Many publications have been released on this topic for the last ten years,but they often focused on the drying mechanisms or on the addition of drying aids.This paper presents some experimental results on the effect of the composition on the drying properties,especially on the effect of silicon carbide,used for its high thermal conductivity,and on the matrix system.It also introduces two laboratory tests to study and iteratively improve the drying schedule of a given castable lining.The results show that the spalling resistance and the vapor pressure build-up are significantly influenced by the formulation.It is also shown that the castable properties after drying can be altered if the heating rate is very high.
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    Potential of Applying Artificial Intelligence to Hot Metal Logistics Management

    Maria Gabriela Garcia CAMPOSPaul van BEURDEN
    37-41页
    查看更多>>摘要：The steel industry,known for its complexity and the need to reduce CO2 emissions,is adopting advanced digitalization tools to move towards a more sustainable,integrated,and agile operating model.Digital twins with artificial intelligence-based optimization and scheduling models can improve decision-making in logistics,refractory maintenance,and energy efficiency.By incorporating advanced Al algorithms into this decision support system,the hot metal route scenarios can be evaluated,resulting in minimized hot metal temperature losses and increased scrap utilization.This paper integrated digital twins with reinforcement learning algorithms to investigate the logistics of torpedoes and hot metal ladles.It considered important input parameters such as the ladles and torpedoes'thermal state and location,refractory thickness,hot metal volume and temperature,and crane availability.By incorporating advanced Al algorithms into this decision support system,energy-efficient scenarios can be evaluated,increasing scrap utilization and resulting in a possible reduction of 15 ℃ in hot metal temperature losses.
      原文链接:
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    Performance Assessment on Corrosion Resistance of Refractory Materials Based on High-temperature Machine Vision Technology

    Chenchen LIUAo HUANGYan YUGuoping WEI...
    42-48页
    查看更多>>摘要：Refractory materials,as the crucial foundational materials in high-temperature industrial processes such as metallurgy and construction,are inevitably subjected to corrosion and penetration from high-temperature media during their service.Traditionally,observing the in-situ degradation process of refractory materials in complex high-temperature environments has presented challenges.Post-corrosion analysis are commonly employed to assess the slag resistance of refractory materials and understand the corrosion mechanisms.However,these methods often lack information on the process under the conditions of thermal-chemical-mechanical coupling,leading to potential biases in the analysis results.In this work,we developed a non-contact high-temperature machine vision technology by the integrating Digital Image Correlation(DIC)with a high-temperature visualization system to explore the corrosion behavior of Al2O3-SiO2 refractories against molten glass and Al2O3-MgO dry ramming refractories against molten slag at different temperatures.This technology enables real-time monitoring of the 2D or 3D overall strain and average strain curves of the refractory materials and provides continuous feedback on the progressive corrosion of the materials under the coupling conditions of thermal,chemical,and mechanical factors.Therefore,it is an innovative approach for evaluating the service behavior and performance of refractory materials,and is expected to promote the digitization and intelligence of the refractory industry,contributing to the optimization and upgrading of product performance.
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    Abstracts Selected from Naihuo Cailiao(Resractories)——A Bimonthly in Chinese

    49-54页
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