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High temperature resistant castable
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A castable and high-temperature-resistant technology, applied in the field of refractory materials, can solve the problems of limited high-temperature-resistant strength and high cost, and achieve the effects of reducing pollution, ensuring thermal shock resistance, and small expansion coefficient
Active Publication Date: 2016-10-12
宁夏胜金水泥有限公司
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Problems solved by technology
However, traditional castables have limited high temperature resistance and high cost
Method used
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Embodiment 1
[0011] (1) Preparation of castable:
[0012] 40 parts of aggregate, 30 parts of powder, 5 parts of binder, and 2 parts of additive. The particle diameter of coarse aggregate in aggregate is 2mm, the particle diameter of medium aggregate is 1mm, and the particle diameter of fine aggregate is 0.1mm. According to the above ratio, weigh and mix the raw materials, add water and stir to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.
[0013] (2) Physical performance test:
[0014] After drying at 110℃×24h, the flexural strength is 12.2MPa and the compressive strength is 86.8MPa;
[0015] After 1100℃×2H treatment, the flexural strength is 13.5MPa and the compressive strength is 90.2MPa.
Embodiment 2
[0017] (1) Preparation of castable:
[0018] 50 parts of aggregate, 40 parts of powder, 10 parts of binder, 10 parts of additive, the particle diameter of coarse aggregate in aggregate is 3mm, the particle diameter of medium aggregate is 1.8mm, and the particle diameter of fine aggregate is 0.6mm . According to the above ratio, weigh and mix the raw materials, add water and stir to obtain a slurry with good fluidity, and test the physical properties after forming, curing and heat treatment.
[0019] (2) Physical performance testing:
[0020] After drying at 110℃×24h, the flexural strength is 12.6MPa and the compressive strength is 87.2MPa;
[0021] After 1100℃×2H treatment, the flexural strength is 13.9MPa and the compressive strength is 91.3MPa.
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Abstract
The invention relates to a high-temperature-resistant castable which is prepared from the following raw materials in parts by weight: 40-50 parts of aggregate, 30-40 parts of powder, 5-10 parts of binder and 2-10 parts of additive. The aggregate is composed of manganese slag and silica; the powder is composed of fly ash, silicon micropowder, aluminum oxide and magnesium oxide; the binder is aluminate cement; and the additive is alpha-aluminum oxide fine powder. The aggregate is composed of the following components in parts by weight: 45 parts of manganese slag and 55 parts of silica. The powder is composed of the following components in parts by weight: 10 parts of fly ash, 10 parts of silicon micropowder, 50 parts of aluminum oxide and 30 parts of magnesium oxide.
Description
technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high temperature resistant castable. Background technique [0002] Compared with qualitative refractory products, unshaped refractory materials represented by refractory castables have the advantages of short process flow, low production energy consumption and cost, convenient use, wide application range, integrity and good use effect, so they are widely used in the world. It has developed rapidly, and its proportion in the whole refractory material is getting higher and higher. In some countries with advanced refractory technology, the output of unshaped refractories has approached or even exceeded the output of shaped products. For example, the current output of unshaped refractory materials in Japan accounts for about 60% of the total refractory materials; in the United States, it is about 50%; in Britain, Germany, France and other countries, it is ...
Claims
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Application Information
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