检索结果-南通市图书馆

Performance Assessment on Corrosion Resistance of refractory materials Based on High-temperature Machine Vision Technology

引用

China's Refractories 2024年第3期33卷 42-48页

作者： Chenchen LIU Ao HUANG Yan YU Guoping WEI Shenghao LI Huazhi GU The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan 430081China Zhejiang Zili High Temperature Technology Co. Ltd.Shaoxing 312300China

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 ***,observing the in-situ degradation process of refractory materials in complex high-temperature environments has presented ***-corrosion analysis are commonly employed to assess the slag resistance of refractory materials and understand the corrosion ***,these methods often lack information on the process under the conditions of thermal-chemical-mechanical coupling,leading to potential biases in the analysis *** 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 *** technology enables realtime 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 ***,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.

关键词： refractory materials high-temperature machine vision Digital Image Correlation(DIC) corrosion resistance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microstructure and physical properties of steel-ladle purging plug refractory materials

引用

International Journal of Minerals,Metallurgy and materials 2017年第2期24卷 186-193页

作者： Bin Long Gui-ying Xu Buhr Andreas School of materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Almatis Qingdao Co. Ltd. Qingdao 266071 China Almatis GmbH Frankfurt 60528 Germany

Three different castables were prepared as steel-ladle purging-plug refractory materials： corundum-based low-cement castable （C-LCC）, corundum-spinel-based low-cement castable （C-S-LCC）, and no-cement corundum-spinel castable （C-S-NCC）（hydratable alu- mina p-A1203 bonded）. The properties of these castables were characterized with regard to water demand/flow ability, cold crushing strength （CCS）, cold modulus of rupture （CMoR）, permanent linear change （PLC）, apparent porosity, and hot modulus of rupture （HMoR）. The re- sults show the CCS/CMoR and HMoR of C-LCC and C-S-LCC are greater than those of the castable C-S-NCC. According to the micro- structure analysis, the sintering effect and the bonding type of the matrix material differ among the three castables. The calcium hexaluminate （CA6） phase in the matrix of C-LCC enhances the cold and hot mechanical strengths. In the case of C-S-LCC, the CA6 and 2CaO·2MgO·14A12O3（C2MEA14） ternary phases generated from the matrix can greatly increase the cold and hot mechanical strengths. In the case of the no-cement castable, sintering becomes difficult, resulting in a lower mechanical strength.

关键词： refractory materials purging plugs castable physical properties microstructure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experiences of Using Alternative Raw materials in Manufacturing of refractory materials

引用

China's Refractories 2016年第1期25卷 7-12页

作者： Lucie VODOVA Karel LANG Lukas TVRDIK Pavel KOVAR P-D Refractories CZ a.s. Velke Opatovice 67963 Czech Republic

The article describes the experiences of alternative materials for the manufacturing of the refractory materi- als in the company P-D Refractories CZ a. s. The atten- tion is focused on energy by-products （EBP）. Energy by-products are generated during burning and desul- phurization in thermal power plants. Classical high-tem- perature -fly ash （class *** ash according to ASTM C618） is the most important and .fly ash from .fluidized technology （ class C-fly ash） is the second group. In the Czech Republic, power plants produce about 14 million tons of energy by-products every year. Utilization of these products in ceramic technology means a reduction of raw material costs and also it helps to reduce adverse environ- mental impact. Class F-fly ash （ FFA ） and cinder from high temperature combustion （CD） were used in light- weight insulation fireclay bricks. We can use these mate- rials as a grog and a lightening agent for materials with bulk density over 900 kg · m-3 and classification tem- perature up to 1 150 ℃. Class *** ash （CFA） is be- ing tested in a wide range of the refractory materials. For example, it can be used in lightweight fireclay bricks, fireclay bricks for stoves, acid-resistant fireclay bricks or refractory castables. The range of potential products, where EBP could be used, is very wide and energy by-products have become an important raw mate- rial source.

关键词： energy by-products class F fly ash classC fly ash refractory materials

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Test Method for Torsion Strength of refractory materials at Elevated Temperatures

引用

China's Refractories 2018年第3期27卷 28-31页

作者： ZHU Qingyou GE Shan YIN Yucheng LIU Zhiqiang The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology

New apparatus for the determination of torsion strength of refractory materials at elevated temperatures has been developed in this work. With the employment of heating wire and induction heating unit,this device can carry out torsion strength test at high temperatures at the heating rate ranging from 10 ℃/min to 200 ℃/*** strength of high alumina brick,magnesia brick and Si3 N4 bonded SiC brick has been tested at different heating rates of 10 ℃/min,100 ℃/min and 200℃/min,separately. Results indicate that,for high alumina brick,the tested torsion strength at the heating rate of 10 ℃/min is very close to that at 100 ℃/min,but very different from that at 200 ℃/min. The tested torsion strength of magnesia brick at different heating rates differs greatly,while that of Si3 N4 bonded SiC brick is similar. This suggests that the structure of refractory materials with poor thermal shock resistance might be damaged when the heating rate of 200 ℃/min was applied,but the heating rate of 100 ℃/min is possible for a lot of refractory products. At fast heating rates,it takes only1 h to finish a test at elevated temperatures,thus saving a lot of time and energy.

关键词： torsion strength heating rate refractory materials local heating

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experimental study and numerical modeling of the thermal behavior of an industrial prototype ceramic furnace:Energy and environmental optimization

引用

Energy and Built Environment 2024年第2期5卷 244-254页

作者： Lahcen BALLI Mohamed HLIMI Youssef ACHENANI Adil ATIFI Bachir HAMRI Engineering Sciences and Applications Laboratory(LSIA) National School of Applied Sciences(ENSAH)Abdelmalek Essaadi UniversityTetouanMorocco Faculty of Sciences and Techniques Moulay Ismaïl UniversityP.O.Box 509-BoutalamineErrachidiaMorocco Engineering and Health Sciences and Technologies Research Center M2SMENSAMMohammed.V UniversityRabatMorocco Research Team Quality Maintenance Safety QSMMechanical EngineeringDepartment Mohammadia School of EngineersMohammed V UniversityRabatMorocco

This article focuses on the experimental and numerical study of an industrial prototype furnace intended for the production of ceramics in order to improve the energy efficiency and therefore optimize the fuel consumption and the corresponding carbon dioxide *** order to understand the thermal behavior from which stems the energy efficiency of the experimental prototype,we establish in this work,a simplified modeling allowing to establish a mathematical model describing the thermal behavior of the *** model is able to accurately predict the spatial and temporal distribution of the temperature at each point of the furnace to control the firing of the refractory product so that the final product is of good quality in terms of resistance and *** addition,the power consumed by the prototype must be optimized in order to reduce energy and environmental *** particular,this efficient technology has allowed us to save 83% of energy used in the traditional furnace and to reduce 87.36% of the relative carbon dioxide *** simulation of the mathematical model made it possible to compare the numerical results with the experimental measurements obtained by the prototype as well as to validate the model and to adjust the heat transfer parameters.

关键词： Numerical modeling Thermal behavior Ceramic furnace refractory materials Energy efficiency

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Progress on Preparation of refractory Powder Using Nonmetallic Minerals and Its Applications

引用

China's Refractories 2014年第4期23卷 6-12页

作者： HUANG Zhaohui YANG Tao FANG Minghao LIU Yangai WU Xiaowen School of materials Science and Technology Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid WastesNational Laboratory of Mineral MaterialsChina University of Geosciences(Beijing)

This review summarized the recent advances in the utilization of nonmetallic minerals and their applications for fabrication of unfired *** preparation of refractory powder utilizing cheap nonmetallic minerals of zircon,low-grade bauxite and quartz was discussed,*** preparation of three unfired SiC-based refractories：SiC-SiAlON-ZrN,Al2O3-SiC/β-SiAlON/Ti（C,N）-C,and Al2O3-SiC-Si3N4 using the as-prepared refractory powders was introduced.

关键词： refractory materials nonmetallic minerals zircon low-grade bauxite quartz unfired refractories

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Salt-Assisted SHS Synthesis of Aluminium Nitride Powders for refractory Applications

引用

Journal of materials Science and Chemical Engineering 2014年第10期2卷 26-31页

作者： Alan Wilmański Miroslaw M.Bucko Zbigniew Pedzich Jacek Szczerba AGH University of Science and Technology Faculty of Materials Science and CeramicsKrakowPoland

Powders of aluminum nitride can be prepared by self-sustain high-temperature synthesis (SHS) between aluminum and nitrogen but its high exothermic effect causes melting and evaporation of aluminum and low efficiency of such reaction. A presence of inorganic salt in the starting powder mixture can decrease a heat evolved in the SHS reaction, hinders melting and coalescence of aluminum, and facilitates penetration of nitrogen into interior of a powder bed. Mixtures of alumina powders with different grain sizes and different amounts of aluminum carbonate were subjected to the SHS reaction under 0.05, 0.1 or 1 MPa nitrogen. The powders were composed of aluminum nitride, unreacted aluminum, aluminum oxynitride and in some cases corundum and aluminum oxycarbonate. The finale effects are strongly dependent on the amount of the salt, a grain size of aluminum and a nitrogen pressure.

关键词： Aluminum Nitride Self-Sustain High-Temperature Synthesis Salt Assisted Synthesis refractory materials

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Determination of Chlorine Content in Zirconia Containing Special Refractories

引用

China's Refractories 2022年第3期31卷 38-41页

作者： XU Xiaoying CAO Haijie DUAN Xueke LEI Xiaoyu Sinosteel Luoyang Institute of Refractories Research Co. Ltd.Luoyang 471039China

In this study,zirconia containing refractory samples were decomposed by dilute nitric *** chloride ion content in the leaching solution was determined by thiocyanate *** influences of the leaching method of the sample pretreatment and the coloration condition of the solution to be tested on the test results were *** precision test was carried out and the results were compared with those determined by ion *** results showed that the zirconia containing refractories were boiled with dilute nitric acid to obtain the test *** influence of zirconium hydrolysis on determination was removed by *** chlorine contents in zirconia containing refractories determined by spectrophotometry have low relative standard deviation(RSD),showing slight testing difference with those determined by ion chromatograghy.

关键词： zirconia refractory materials chlorine content determination

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A New Test Method for Hot Abrasion Resistance on Refractories

引用

China's Refractories 2011年第3期20卷 26-29页

作者： LI Yonggang LOU Haiqin LIU Ke Instrument ＆ Equipment Plant Sinosteel Luoyang Institute of Refractories Research Co. Ltd. Luoyang 471039 China

Test methods for hot abrasion resistance of refractories in China and overseas were briefly introduced. A new test method for hot abrasion resistance was researched. The new method inherits test principle of cold abrasion resistance in Chinese standard totally, adopts compressed air pre-heating and electricity heating sam- ples, and is featured with complete structure, good con- trollability, simple operation, and small size. The characteristics and operating procedure of HAT-14A tester were introduced. The hot abrasion resistance of various refractories at different temperatures was tested.

关键词： refractory materials Test method Hot abrasion resistance HAT- 14A tester

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：