Test Method for Torsion Strength of Refractory Materials at Elevated Temperature

机译：高温下耐火材料抗扭强度的测试方法

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A new apparatus for the determination of torsion strength of refractory materials at elevated temperature has been developed As the employment of heating wire and induction heating unit, this device allows us to carry out torsion strength testing at high temperatures with heating rate from 10 ℃/min to 200 ℃/min.Torsion strength of high alumina brick,magnesia brick and Si3N4 bonded SiC brick have been tested with different heating rates of 10 ℃/min,1 00 ℃/min and 200 ℃/min, separately.Results indicate that, for high alumina brick, the tested torsion strength with heating rate of 10 ℃/min is very closed to that of 100 ℃/min, but very different from that of 200 ℃/min.The tested torsion strength of magnesia bricks with different heating rate are great different,while that of Si3N4 bonded SiC bricks is similar with each other.This might suggest that the structure of refractory materials with poor thermal shock resistance would be damaged when the heating rate of 200℃/min was applied, but the heating rate of 1 00 ℃/min is possible for a lot of refractory products.With fast heating rate, it takes only 1 hour to finish a test at elevated temperature, and thus to save a lot of time and energy.

机译：已经开发出一种用于测定耐火材料在高温下的抗扭强度的新设备。由于使用了加热丝和感应加热装置，该设备使我们能够以10℃/ min的加热速率在高温下进行抗扭强度测试分别以10℃/ min，1 00℃/ min和200℃/ min的不同升温速率测试了高铝砖，镁砖和Si3N4粘结SiC砖的抗拉强度。结果表明，对于高铝砖，加热速率为10℃/ min的抗扭强度与100℃/ min的抗扭强度非常接近，但与200℃/ min的抗扭强度却有很大差异。不同加热速率的氧化镁砖的抗扭强度Si3N4粘结的SiC砖彼此之间有很大的不同。这可能表明，当以200℃/ min的速度加热时，耐热冲击性差的耐火材料的结构会受到破坏，但是许多耐火材料的加热速度可以达到1 00℃/ min。由于加热速度快，在高温下仅需1小时即可完成测试，从而节省了大量的时间和精力。

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来源
《第七届国际耐火材料学术会议（ISR2016）论文集》|2016年|1-4|共4页
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作者
ZHU Qingyou; GE Shan; YIN Yucheng; LIU Zhiqiang;
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The state key laboratory of refractories and metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;

The state key laboratory of refractories and metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;

The state key laboratory of refractories and metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;

The state key laboratory of refractories and metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;

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原文格式 PDF
正文语种 eng
中图分类化学工业;冶金工业;
关键词
torsion strength; heating rate; refractory materials; local heating;

机译：扭转强度;加热速率;耐火材料;局部加热;

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专利

1. A Test Method for Torsion Strength of Refractory Materials at Elevated Temperatures [J] . ZHU Qingyou, GE Shan, YIN Yucheng, 中国耐火材料（英文版） . 2018,第003期

机译：高温下耐火材料抗扭强度的测试方法
2. High-Temperature Corrosion of Refractory Materials in Biomass and Waste Combustion: Method Development and Tests with Alumina Refractory Exposed to a K2CO3-KCI Mixture [J] . Li Na, Vainio Emil, Hupa Leena, Energy & fuels . 2017,第9期

机译：生物质和废物燃烧中耐火材料的高温腐蚀：暴露于K2CO3-KCI混合物中的氧化铝耐火材料的方法开发和测试
3. METHODOLOGY AND RESULTS OF AN INVESTIGATION INTO THE STRENGTH OF COMPOSITE MATERIALS IN TORSION AT HIGH TEMPERATURES (TO 3300 K) [J] . V. S. Dzyuba, L. V. Kravchuk, R. I. Kuriat, Mechanics of composite materials . 2011,第2期

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4. IMPLEMENTATION OF A STANDARD TEST METHOD FOR ABRASION RESISTANCE OF REFRACTORY MATERIALS FOR TESTING AT ELEVATED TEMPERATURES [C] . Ralf Simmat, Christian Dannert, Olaf Krause, Biennial worldwide congress on refractories . 2014

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5. A rapid testing instrument to estimate thermal properties of food materials at elevated temperatures during nonisothermal heating. [D] . Mishra, Dharmendra Kumar. 2013

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6. Torsional shear strength of steel joined with high performance aerospace adhesives at cryogenic and elevated temperatures [O] . Gurdial Blugan, Gustavo Mata-Osoro, Simon Fecht, -1

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7. Strength of Materials at Elevated Temperatures. Fabrication of Diffusion Bonding of an ODS Ni-Base Alloy, MA758 and the Evaluation of High Temperature Fatigue Strength. [O] . Yasuhiro YAMAZAKI, Shigetomo NUNOMURA, Masakazu OKAZAKI, 1999

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Test Method for Torsion Strength of Refractory Materials at Elevated Temperature

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