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Ceramic composite material for thin-strip casting side sealing plate and preparation method thereof

A technology of ceramic composite material and side sealing plate, which is applied in the field of ceramic composite material and its preparation, can solve the problems of high preparation cost, non-reprocessing and reuse, and high thermal conductivity of side sealing plate, so as to improve the corrosion resistance of molten steel Performance and anti-friction and wear properties, the effect of low preparation cost and secondary reuse cost, good mechanical properties and processability

Active Publication Date: 2011-09-07
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a thin strip connecting plate for solving the problems of high thermal conductivity, serious wear, poor sealing, non-reprocessing and reutilization, high preparation cost and large energy consumption of the traditional side sealing plate. Ceramic composite material of cast side sealing plate and preparation method thereof

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  • Ceramic composite material for thin-strip casting side sealing plate and preparation method thereof
  • Ceramic composite material for thin-strip casting side sealing plate and preparation method thereof
  • Ceramic composite material for thin-strip casting side sealing plate and preparation method thereof

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specific Embodiment approach 1

[0011] Specific embodiment one: In this embodiment, a kind of ceramic composite material used for strip continuous casting side sealing plate is composed of 20%~70% zirconia, 20%~70% boron nitride and 2%~30% by volume fraction. % of additive composition; wherein the additive is one of oxides, carbides, nitrides, borides, simple metals, simple inorganic substances or a combination of several of them.

[0012] In the present embodiment, when the additives are a composition, various additives are combined in arbitrary ratios.

specific Embodiment approach 2

[0013] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the oxide is one or several of silicon oxide, aluminum oxide, boron oxide, titanium oxide, yttrium oxide, ytterbium oxide, cerium oxide, and lanthanum oxide. Combination; carbide is one of silicon carbide, boron carbide, titanium carbide, zirconium carbide or a combination of several of them; nitride is one of silicon nitride, aluminum nitride, titanium nitride, zirconium nitride Or a combination of several of them; the boride is one of titanium boride, zirconium boride, hafnium boride, and lanthanum boride or a combination of several of them; the metal element is one of metal aluminum, metal titanium, and metal zirconium One or a combination of several of them; the elemental inorganic substance is one or a combination of elemental boron, elemental silicon, elemental carbon, and elemental sulfur. Others are the same as the first embodiment.

[0014] In this embodiment, when ...

specific Embodiment approach 3

[0015] Specific embodiment three: the difference between this embodiment and specific embodiment two is that the elemental carbon in the inorganic matter can also be the cracking product of organic matter, wherein the organic matter is one or more of phenolic resin, urea-formaldehyde resin, epoxy resin or asphalt A combination of several of them. Others are the same as in the second embodiment.

[0016] In this embodiment, when the organic matter is a composition, various compositions are combined in any proportion.

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Abstract

The invention provides a ceramic composite material for a thin-strip casting side sealing plate and a preparation method thereof, relating to a ceramic composite material and a preparation method thereof and solving the problems that the traditional side sealing plate has high heat conductivity, serious abrasion, poor seal, high preparation cost and large energy consumption, can not be secondarily processed or reused. The ceramic composite material consists of zirconia, boron nitride and additives. The preparation method comprises the following steps: 1, weighing raw materials; 2, ball milling and mixing the raw materials; 3, drying to obtain uniform mixed powder; and 4, carrying out hot pressed sintering, pressureless sintering, air pressure sintering or hot isostatic pressed sintering on the mixed powder, so as to obtain the ceramic composite material for a thin-strip casting side sealing plate. The compactness of the ceramic composite material is 94%-99%, the bending strength of the ceramic composite material, tested by a three-point bending test at room temperature, is 260-420MPa, and the fracture toughness of the ceramic composite material, tested by a unilateral coped beam method, is 3-8 MPa.m<1 / 2>. The ceramic composite material can be widely applied to the field of side sealing plate materials.

Description

technical field [0001] The invention relates to a ceramic composite material and a preparation method thereof. Background technique [0002] With the increasing progress of steel smelting technology, thin strip continuous casting technology has gradually entered the stage of large-scale industrial application from the research and development stage of the laboratory, and the demand for side sealing plates, which is a key component of thin strip continuous casting technology, has further increased. In particular, the progress and development of special steel smelting technology has a wide demand for the diversity and high performance of side sealing plates. The research and development of advanced side sealing plate materials has far-reaching influence and special value on iron and steel metallurgy industry. [0003] At present, the side sealing plate materials are roughly divided into two categories: one is traditional materials, mostly clay bricks, high alumina bricks, qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/583C04B35/63C04B35/622
Inventor 王玉金陈磊周玉贾德昌
Owner HARBIN INST OF TECH
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