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Zirconium oxide base metal ceramic material and preparation method thereof

A ceramic material and zirconia-based technology, which is applied in the field of zirconia-based cermet materials and its preparation, can solve the problems of short service life and low heat exchange efficiency of heat exchange tubes, and achieve the effect of overcoming short service life

Inactive Publication Date: 2018-04-06
朱森
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Problems solved by technology

[0003] The purpose of the present invention is to provide a zirconia-based cermet material for manufacturing heat exchange tubes of a preheating furnace and a preparation method thereof in view of the above-mentioned problems. Metal-ceramic materials to overcome the problems of short service life and low heat exchange efficiency of traditional heat exchange tubes

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  • Zirconium oxide base metal ceramic material and preparation method thereof
  • Zirconium oxide base metal ceramic material and preparation method thereof

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preparation example Construction

[0028] Further, the preparation method of the ceramic powder comprises the following steps:

[0029] Step 1. The blank is prepared by using the existing technology, and then the surface of the blank is evenly coated with glaze, and then fired into a fired body at a temperature below 1300°C;

[0030] Step 2. Grinding the fired preform together with zinc oxide into a powder with an average particle size of less than 50 μm to obtain ceramic powder, wherein the mass fraction of zinc oxide added is not higher than 3.5% of the mass fraction of the fired body .

[0031]In the zirconia-based cermet material of the present invention, the preparation method of the zirconia-based cermet material comprises the following steps:

[0032] Step 1. Take the designed amount of metal powder and ceramic powder and place them in a high-speed ball mill for mixing and grinding for 2-4 hours. The speed of the high-speed ball mill is 400rad / min, and then put them in a high-speed mixer and mix them ev...

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Abstract

The invention discloses a zirconium oxide base metal ceramic material and a preparation method thereof. The zirconium oxide base metal ceramic material is mainly prepared through composition of zirconium oxide base ceramic powder and ferrous metal powder at a mass ratio of (70-75):(25-30), wherein the zirconium oxide base ceramic powder comprises a preform body and a glaze, and the mass ratio of the preform body and the glaze is (93-96):(4-7). According to the zirconium oxide base metal ceramic material for producing a pre-heating furnace heat exchanging pipe and the preparation method of thezirconium oxide base metal ceramic material, the problems that a metal ceramic heat exchanging pipe in a traditional pre-heating furnace is undurable, and the heat exchanging efficiency is poor are mainly solved, by compounding the metal ceramic material which has good thermal conductivity and elongation, the problems that a traditional heat exchanging pipe is short in service life and low in heatexchanging efficiency are solved, the thermal conductivity of the metal ceramic material can reach 213.3W / m.K, the elongation can reach 4.0%, and the zirconium oxide base metal ceramic material is particularly suitable for being used in a gas-phase pre-heating furnace with the pre-heating temperature being above 800 DEG C.

Description

technical field [0001] The invention relates to the technical field of manufacturing high-temperature preheating furnaces, in particular to a zirconia-based cermet material for manufacturing heat exchange tubes of a preheating furnace and a preparation method thereof. Background technique [0002] The preparation methods of nano-scale titanium dioxide mainly include physical methods and chemical methods. Physical methods mainly include sputtering methods, thermal evaporation methods and laser evaporation methods. Chemical methods mainly include liquid phase methods and gas phase methods. Liquid phase methods mainly include uniform precipitation methods and Sol-gel method, gas phase method mainly includes TiCl 4 Gas phase oxidation method, TiCl is generally used at present 4 Nano-TiO2 was prepared by gas-phase oxidation. TiCl 4 The gas phase oxidation method generally uses nitrogen as TiCl 4 Carrier gas, oxygen as an oxidant, oxidation reaction in a high-temperature tubul...

Claims

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Application Information

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IPC IPC(8): C22C29/12C22C1/05
CPCC22C29/12B22F2998/10B22F2999/00C22C1/051B22F2009/043B22F3/02B22F3/1007B22F2003/247B22F2201/20
Inventor 朱森
Owner 朱森
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