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Sequence continuous casted AL2O3-SiO2-C metal composite sliding plate

An al2o3-sio2-c, multi-furnace continuous casting technology, applied in the field of refractory metallurgy, can solve the problems that the thermal shock resistance and corrosion resistance of materials are not suitable for use conditions, and the service life is not very high, so as to achieve good thermal shock stability , good flatness and high mechanical wear strength

Inactive Publication Date: 2013-09-25
YANGQUAN DONGFENG REFRACTORY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As far as the inventor knows and relevant literature shows, most of the slides currently produced are high-temperature fired aluminum-carbon slides combined with ceramics, and the service life is not very high. The main reason is that the thermal shock resistance and corrosion resistance of the materials are not suitable for harsh conditions. conditions of use

Method used

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Embodiment Construction

[0015] Below in conjunction with embodiment the present invention is described in further detail, multi-furnace continuous pouring AL 2 o 3 -SiO 2 -C metal composite skateboard

[0016] Its production process is,

[0017] (1) The ingredients should be weighed strictly according to the ratio, and the fine powder should be mixed evenly. When mixing the mixed powder, the additive should be added between the materials, and the mixed powder stirred by the mixer should be randomly checked whether its chemical composition is uniform; the weight of the main ingredients For: tabular corundum

[0018] 40-45%; metal silicon 9-15%; metal powder 9-15%; alumina powder 10-15%; alumina 20%; resin 6-12%.

[0019] (2) The temperature of the materials mixed by the wet mill or high-speed kneader should be controlled to prevent the material temperature from being too high or too low to affect the mixing effect and formability. In winter, it is necessary to take heat preservation measures or h...

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Abstract

The invention discloses a sequence continuous casted AL2O3-SiO2-C metal composite sliding plate, and helps to solve problems that steel ladle is recycled rapidly, the sliding plate is used continuously and sequence continuous casting is employed. Characteristics of the metal composite sliding plate are that: aluminum compounds such as tabular corundum, top alumina, metallic silicon and metallic aluminium powder are taken as main materials, asphalt and silicon carbide are added, and phenolic resins is taken as a binder; the ingredients are prepared, mixed, shaped under high pressure, roasted at a temperature of 1300 to 1500 DEG C in reductive atmosphere, and subjected to oil immersion and carbonization treatment; a working surface is polished; the sliding plate is hooped with steel bands; and mineral wool boards and tinplate are adhered to a non-working surface. The sliding plate possesses high flatness, erosion wear resistance, physical wear strength and thermal shock resistance, and does not adhere to steel or lag, and is suitable for alloying and pure steel smelting.

Description

Technical field: [0001] The invention belongs to the technical field of refractory metallurgy, in particular to a multi-furnace continuous pouring Al 2 o 3 -SiO 2 -C metal composite skateboard. It is suitable for the process of molten steel from ladle to tundish, and from tundish to mold. It is necessary to ensure the compactness and concentration of steel flow and minimize the contact between molten steel and the outside atmosphere to reduce oxidation and nitrogen absorption. The sealed steel flow is realized, which prevents molten steel from oxidation and nitrogen absorption to a large extent, and creates conditions for effective alloying and smelting of pure steel. Background technique: [0002] As far as the inventor knows and relevant literature shows, most of the slides currently produced are high-temperature fired aluminum-carbon slides combined with ceramics, and the service life is not very high. The main reason is that the thermal shock resistance and corrosion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 闫振刚
Owner YANGQUAN DONGFENG REFRACTORY MATERIAL CO LTD
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