Preparation method for metal composite ceramic plate

A composite ceramic plate and metal composite technology, applied in the field of ceramics, can solve problems such as shortened service life, affect production efficiency, and increase production costs, and achieve the effects of increasing wear resistance, improving performance, and increasing interface bonding strength

Active Publication Date: 2017-09-19
洛阳鹏飞耐磨材料股份有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Wear-resistant parts made of traditional metal materials, such as chromium-based white cast iron and austenitic wear-resistant manganese steel, are difficult to meet the above requirements at the same time; ceramic materials have high hardness and high temperature resistance, but generally have poor toughness and are easy to wear during use. Cause cracking and failure, which shortens its service life, not only affects production efficiency, but also increases production costs

Method used

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  • Preparation method for metal composite ceramic plate
  • Preparation method for metal composite ceramic plate

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preparation example Construction

[0030] A method for preparing a metal composite ceramic plate, comprising the following steps:

[0031] Step 1: Take 65-90 parts of silicon nitride, 0.1-1.5 parts of boron carbide, 5-30 parts of aluminum oxide, 0.2-0.5 parts of carbon fiber and 2-3 parts of yttrium oxide as the raw materials of the composite ceramic plate in parts by weight and put them into a ball mill for mixing Evenly, the grinding time is 18-30h, and then spray powder, the dried powder is made into a composite ceramic slab body by extrusion molding or injection molding, and the upper and lower gaps between the composite ceramic slab body There are several through holes, among which there are multiple passages on the two opposite sides, and the through holes and passages are arranged alternately, and several orifices are arranged on the contact surface between the through holes and the passages; Put it in a sintering kiln at 100-150°C, and then cool down at 1200-1300°C for 6-12 hours to obtain a composite c...

Embodiment 1

[0052] Such as 1-2 Figure 1 A kind of metal composite ceramic plate, its preparation method, comprises the following steps:

[0053] Step 1: Take 90 parts of silicon nitride with a particle size of 0.020-1 μm, 1.5 parts of boron carbide with a particle size of 40-300 nm, and 5 parts of alumina with a particle size of 20-600 nm in parts by weight. 0.5 parts of carbon fiber with a diameter of 2-4 μm and an average length of 6-10 mm and 3 parts of yttrium oxide with a particle size of 40-300 nm are put into a ball mill and mixed evenly. The grinding time is 18 hours, and then sprayed after 100-200 mesh screening powder, the dried powder is made into a composite ceramic slab green body by extrusion molding or injection molding, and several through holes 101 are arranged between the upper and lower sides of the composite ceramic slab green body, and the two opposite sides are provided with There are multiple passages 102, and the through holes and passages are arranged alternatel...

Embodiment 2

[0062] A kind of metal composite ceramic board, its preparation method, comprises the following steps:

[0063] Step 1: Take 65 parts of silicon nitride with a particle size of 0.020-1 μm, 1.5 parts of boron carbide with a particle size of 40-300 nm, and 30 parts of alumina with a particle size of 20-600 nm in parts by weight. 0.5 parts of carbon fiber with a diameter of 2-4μm and an average length of 6-10mm and 3 parts of yttrium oxide with a particle size of 40-300nm are put into a ball mill and mixed evenly. powder, the dried powder is made into a composite ceramic slab green body by extrusion molding or injection molding, and several through holes 101 are arranged between the upper and lower sides of the composite ceramic slab green body, and the two opposite sides are provided with There are multiple passages 102, and the through holes and passages are arranged alternately, and several orifices 103 are arranged on the contact surface between the through holes and the pass...

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Abstract

The invention provides a preparation method for a metal composite ceramic plate. Firstly, raw materials of a composite ceramic plate is subjected to ball-milling and then made into a green body of the composite ceramic plate, through holes are formed between the upper and lower surfaces of the green body, channels are formed between two opposite side surfaces of the green body, and then the composite ceramic plate is prepared through sintering; and two kinds of metal powders and metal mixed powder thereof are subjected to ball-milling correspondingly at the same time, the upper and lower surfaces of the composite ceramic plate are subjected to mechanical rubbing on a metal mixed powder layer formed by the metal mixed powder after ball-milling, the metal mixed powder after rubbing and the two kinds of metal powders after ball-milling are molten into a metal mixed liquid and two kinds of metal liquids correspondingly, the metal mixed liquid and the two kinds of the metal liquids are injected into a mould loaded with the composite ceramic plate after rubbing through the through holes and the channels correspondingly, moreover the metal mixed liquid after being injected is located between the two kinds of metal liquids, after heat preservation at a certain temperature, cooling and demoulding are conducted, and preparing is completed. According to the preparation method for the metal composite ceramic plate, metal and the composite ceramic plate are integrated through effects between the metal and the metal as well as between the metal and ceramic in the metal composite ceramic plate, the abrasive resistance and the toughness of the metal composite ceramic plate are enhanced, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of ceramics, in particular to a method for preparing a metal composite ceramic plate. Background technique [0002] Modern science and technology are constantly developing vigorously, social economy is also booming, and the performance requirements of materials are getting higher and higher. Even if the existing single material has high strength, high modulus, low density, corrosion resistance and high temperature resistance And other characteristics, have been far from meeting the requirements of various industries in modern society. The wear failure of most wear-resistant parts usually occurs in a certain thickness or some specific parts of the wear-resistant working surface, which not only requires the wear-resistant working surface to have high hardness, but also requires the entire wear-resistant part to have high toughness and be able to resist impact , do not break. Wear-resistant parts made of traditional me...

Claims

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Application Information

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IPC IPC(8): B22D23/04C04B35/584C04B35/626
CPCB22D23/04C04B35/584C04B35/6261C04B2235/3217C04B2235/3225C04B2235/3821C04B2235/5248C04B2235/96
Inventor 贾玉川贾鹏飞
Owner 洛阳鹏飞耐磨材料股份有限公司
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