Preparation method of ceramic-metal compound wear-resistant material

A technology of wear-resistant materials and ceramic metals, which is applied in the field of wear-resistant composite materials, can solve the problems that cannot fundamentally solve the problem of adhesion between ceramic particles and matrix metals, and achieve high yield, stable performance, and simple production.

Inactive Publication Date: 2013-09-18
CHONGQING LUOMAN WEAR RESISTANT MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It cannot fundamentally solve the problem of adhesion between ceramic particles and base metal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of Porous Ceramic Preforms:

[0019] The zirconia ceramic powder with a particle size of 50-260 meshes and the dispersant sodium carboxymethyl cellulose are uniformly mixed in a ceramic ball mill, wherein the added amount of the sodium carboxymethyl cellulose accounts for 0.5% of the mass fraction of the ceramic particles. The solid content of the slurry is 65%, and then the porous ceramic prefabricated part is obtained by casting, drying, sintering and cooling with the furnace.

[0020] Nickel plating on the surface of ceramic preforms:

[0021] The above-mentioned porous ceramic preform is subjected to surface treatment according to the following steps:

[0022] 1. Degreasing: soak in anhydrous alcohol solution for 10-35 minutes, wash with deionized water under the action of ultrasonic waves, completely degrease the surface of the prefabricated part, and then dry it naturally.

[0023] 2. Roughening: Under the action of ultrasonic waves, soak in hydroflu...

Embodiment 2

[0032] Preparation of gridded ceramic preforms:

[0033] Alumina ceramic powder with particle size of 200-300 mesh, zirconia ceramic powder of 200-300 mesh, binder sodium lignosulfonate, plasticizer dibutyl phthalate and auxiliary glycerin are uniformly mixed. The mass ratio of the alumina ceramic powder to the zirconia ceramic powder is 1:1, wherein the added amount of sodium sulfonate accounts for 1.5% of the total mass of the ceramic powder. The plasticizer dibutyl phthalate accounts for 0.5% of the total mass of the ceramic powder. Auxiliary glycerin accounts for 0.5% of the total mass of the ceramic powder. Then it is pressed into a grid-shaped ceramic green body and dried. Then sintering and cooling with the furnace to obtain grid-like ceramic prefabricated parts.

[0034] Nickel plating on the surface of grid-like ceramic preforms:

[0035] Surface treatment of the grid-shaped ceramic prefabricated part is carried out according to the following steps:

[0036] 1. D...

Embodiment 3

[0046] Preparation of Porous Ceramic Preforms:

[0047] Alumina ceramic powder with a particle size of 200-300 meshes and sodium carboxymethylcellulose as a dispersant are uniformly mixed in a ceramic ball mill, wherein the amount of sodium carboxymethylcellulose accounts for 1.0% of the mass of ceramic particles. The solid content of the slurry is 60%, and then it is molded by pouring and dried. Then sintering and cooling with the furnace to obtain porous irregular ceramic prefabricated parts.

[0048] Nickel plating on the surface of porous ceramic preforms:

[0049] The porous irregular ceramic preform is subjected to surface treatment according to the following steps:

[0050] 1. Degreasing: soak in anhydrous alcohol solution for 10-35 minutes, wash with deionized water under the action of ultrasonic waves, completely degrease the surface of the prefabricated part, and then dry it naturally.

[0051] 2. Roughening: Under the action of ultrasonic waves, soak in hydrofluo...

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Abstract

The invention discloses a preparation method of a ceramic-metal compound wear-resistant material. The material is characterized by comprising the steps as follows: a ceramic prefabricated member provided with holes is prepared with ceramic powder firstly; then the ceramic prefabricated member is plated with nickel in a chemical nickel-plating manner, and the thickness of a nickel-plating layer is 10 mu m-200 mu m; the ceramic prefabricated member plated with the nickel is fixed in a casting mold, and a basic molten metal is casted at negative pressure, so that the ceramic-metal compound wear-resistant material is obtained. According to the method, the manufacture is simple; the method is particularly suitable for production of large plate pieces; the yield is high, and the performance is stable; a substrate is combined with the prefabricated member, so that good metallurgical bonding can be formed; and the preparation method can be used widely in wear-resistant fields of cement, thermal power, metallurgy and mines and suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of wear-resistant composite materials, in particular to a preparation method of ceramic-metal composite wear-resistant materials. Background technique [0002] Abrasion is the most basic type of failure of prefabricated parts, and it is commonly found in many industries such as metallurgy, mining, thermal power, machinery, cement, and coal mines. This has caused a great waste of raw materials and a huge consumption of energy. According to incomplete statistics, my country consumes more than 5 million tons of metal wear-resistant materials every year. It can be seen that improving the wear resistance of mechanical equipment and parts can effectively reduce energy consumption and increase labor productivity. [0003] In response to the above situation, it was proposed to make metal and ceramics into composite materials. Ceramic metal composite materials are a new type of composite materials that combine the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/02B22D19/16B22D19/14C22C1/10
Inventor 牟元全方文李忠亮
Owner CHONGQING LUOMAN WEAR RESISTANT MATERIALS
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