Metal-matrix composite ceramic liner plate and preparation method thereof

A metal-based composite and ceramic lining technology, which is applied in mechanical equipment, heat exchange equipment, pistons, etc., can solve problems such as easy cracking and poor toughness of wear-resistant ceramic blocks, and achieve improved toughness and thermal shock resistance and enhanced strength , the effect of improving the service life

Active Publication Date: 2013-08-14
洛阳鹏飞耐磨材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing wear-resistant ceramic block has poor toughness and is easy to crack during use, the invention provides a metal matrix composite ceramic lining board and a preparation method thereof. The metal matrix composite ceramic lining The metal liquid is poured in the middle, so that the metal phase infiltrates into the gaps of the ceramic particles and the ceramic particles are wrapped. Under the premise of maintaining hardness and wear resistance, its toughness and thermal shock resistance have been improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A metal matrix composite ceramic liner, the preparation method of which is:

[0038] Step 1. Take 15kg of zirconium corundum with a particle size of 2-5mm, 50kg of high-chromium iron powder with a particle size of 150-500um, and 35kg of iron powder with a particle size of 44-150μm, put them into a container, and mix them evenly to form a metal matrix composite ceramic mixture. Among them: Al in zirconium corundum 2 o 3 ≥ 68.0%, ZrO 2 20.0-27.0%, TiO 2 ≤3.00%, SiO 2 ≤1.50%; Cr≥62-66%, Si≤2.5%, C≥8.0%, P≤0.03%, S≤0.03% in high chromium iron powder;

[0039] Step 2. Send the metal matrix composite ceramic mixture prepared in Step 1 into a melting furnace at a melting temperature of 1600-1800°C, and melt it into molten steel for later use;

[0040] Step 3. Take 70kg of zirconium corundum with a particle size of 2-5mm and 30kg of ferrochrome powder with a particle size of 150-500um, put them into a container, mix them evenly, and make a mixture;

[0041] Step 4, in t...

Embodiment 2

[0050] A metal matrix composite ceramic liner, the preparation method of which is:

[0051] Step 1: Take 30kg of zirconium corundum with a particle size of 2-5mm, 20kg of high-chromium iron powder with a particle size of 150-500um, and 50kg of iron powder with a particle size of 44-150μm, put them into a container, and mix them evenly to form a metal matrix composite ceramic mixture. Among them: Al in zirconium corundum 2 o 3 ≥ 68.0%, ZrO 2 20.0-27.0%, TiO 2 ≤3.00%, SiO 2 ≤1.50%; Cr≥62-66%, Si≤2.5%, C≥8.0%, P≤0.03%, S≤0.03% in high chromium iron powder;

[0052] Step 2. Send the metal matrix composite ceramic mixture prepared in Step 1 into a melting furnace at a melting temperature of 1600-1800°C, and melt it into molten steel for later use;

[0053] Step 3. Take 95kg of zirconium corundum with a particle size of 2-5mm and 5kg of ferrochrome powder with a particle size of 150-500um, put them into a container, mix them evenly, and make a mixture;

[0054] Step 4, in th...

Embodiment 3

[0063] A metal matrix composite ceramic liner, the preparation method of which is:

[0064] Step 1. Take 22kg of zirconium corundum with a particle size of 2-5mm, 35kg of high-chromium iron powder with a particle size of 150-500um, and 43kg of iron powder with a particle size of 44-150μm, put them into a container, and mix them evenly to form a metal matrix composite ceramic mixture. Among them: Al in zirconium corundum 2 o 3 ≥ 68.0%, ZrO 2 20.0-27.0%, TiO 2 ≤3.00%, SiO 2 ≤1.50%; Cr≥62-66%, Si≤2.5%, C≥8.0%, P≤0.03%, S≤0.03% in high chromium iron powder;

[0065] Step 2. Send the metal matrix composite ceramic mixture prepared in Step 1 into a melting furnace at a melting temperature of 1600-1800°C, and melt it into molten steel for later use;

[0066] Step 3: Take 83kg of zirconium corundum with a particle size of 2-5mm and 17kg of ferrochrome powder with a particle size of 150-500um, put them into a container, mix them evenly, and make a mixture;

[0067] Step 4, in t...

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Abstract

The invention discloses a metal-matrix composite ceramic liner plate. Zirconia aluminum oxide, high chromium iron powder and iron powder are electrically smelted and injected into a metal-matrix ceramic reinforcement with a plurality of communicated plug holes to form the metal-matrix composite ceramic liner plate; the upper and lower end faces of the metal-matrix ceramic reinforcement are provided with communicated plug holes, and four side faces of the metal-matrix ceramic reinforcement are provided with communicated grooves; after different reinforcements are spliced, grooves on edges of two adjacent reinforcements form complete plug holes, a metal liquid is poured into the plug holes and can infiltrate among ceramic particles of the reinforcements through the plug holes and uniformly coat the ceramic particles, so that a ceramic phase and a metal phase are uniformly distributed. Therefore, the toughness and wear resistance of the finished ceramic products are enhanced, and the thermal shock resistance of the finished ceramic products is improved.

Description

technical field [0001] The invention relates to a wear-resistant ceramic liner, in particular to a metal matrix composite ceramic liner and a preparation method thereof. Background technique [0002] Wear-resistant ceramic sheets have many aliases due to different regions and habits, such as ceramic sheets, linings, ceramic mosaics, alumina linings, high-alumina linings, etc. It is a material mainly composed of alumina, supplemented by other rare materials. Metal oxides are solvents, which are sintered at a high temperature of 1700 ° C. They are widely used in coal transportation, material transportation systems, pulverizing systems, exhaust systems, etc. Ash, dust removal system and other mechanical equipment with heavy wear. [0003] The wear-resistant ceramic sheets in the prior art are mainly composed of cermet materials with aluminum oxide as the ceramic phase, which have the basic properties of ceramics, that is, high hardness and high temperature resistance, so the w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C32/00C22C1/05B22D19/00
Inventor 贾剑光贾玉川王书正杨建森
Owner 洛阳鹏飞耐磨材料股份有限公司
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