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Metal/ceramic three-layer composite material, preparation process and application thereof

A composite material and metal layer technology, applied in the direction of metal layered products, ceramic layered products, layered products, etc., can solve the problems of hydraulic cylinder inner wall and piston wear, scrapping, wear, etc., achieve stable and reliable work, and expand applications Good range and good wear resistance

Inactive Publication Date: 2009-12-30
李新桥
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Hydraulic cylinders are more and more widely used in daily life and production. The main problem is that as the hydraulic cylinders are used longer, the inner wall of the hydraulic cylinder and the piston wear more and more seriously, resulting in oil leakage and pressure relief of the cylinder due to scratches.
In order to solve the wear-resistant problem of the hydraulic cylinder, the methods commonly used at present are rolling, grinding, high-frequency quenching, chrome plating, laser treatment, etc. on the inner wall of the hydraulic cylinder. The wear resistance has not been greatly improved, and after about two years of use, there will still be severe wear and tear, or even be scrapped.

Method used

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  • Metal/ceramic three-layer composite material, preparation process and application thereof
  • Metal/ceramic three-layer composite material, preparation process and application thereof

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Embodiment 1

[0022] refer to figure 1 , the metal / ceramic three-layer composite material embodiment of the present embodiment is made of iron-zinc alloy layer 1, Si 3 N 4 Ceramic layer 3, iron-zinc alloy / Si 3 N 4 Composed of ceramic transition layer 2, iron-zinc alloy layer 1 thick 3mm, Si 3 N ceramic layer 3 thick 3 mm, Fe-Zn alloy / Si 3 N 4 The ceramic transition layer 2 is 8 mm thick.

[0023] The iron-zinc alloy layer 1 is formed by uniformly sintering the iron-zinc alloy powder of the base material with additives such as paraffin, formaldehyde, and soybean oil, and the weight ratio is: iron-zinc alloy powder: paraffin: formaldehyde: soybean oil = 0.7: 0.12: 0.13: 0.05; 3 N 4 The ceramic layer 3 is made of Si 3 N 4 Ceramic powder and additives paraffin, polyethylene and stearic acid are evenly mixed and sintered, and the weight ratio is: Si 3 N 4 Ceramic powder: paraffin: polyethylene: stearic acid = 0.7:0.11:0.1:0.09; iron-zinc alloy / Si 3 N 4 The ceramic transition layer ...

Embodiment 2

[0030] Metal / ceramic three-layer composite material embodiment of the present invention Al-Zn alloy layer thickness 3 mm, SiC ceramic layer thickness 3 mm, Al-Zn alloy / SiC ceramic transition layer thickness 6 mm, Al-Zn alloy / SiC ceramic transition layer is located at Al-Zn alloy between the alloy layer and the SiC ceramic layer.

[0031]The aluminum-zinc alloy layer is formed by uniformly sintering the base aluminum-zinc alloy powder and additives paraffin, formaldehyde, and soybean oil, and the weight ratio is: aluminum-zinc alloy powder: paraffin: formaldehyde: soybean oil = 0.7: 0.12: 0.1: 0.08 , The ceramic layer component is made of SiC ceramic powder and additives paraffin, polyethylene, and stearic acid mixed uniformly and sintered, and its weight ratio is: SiC ceramic powder: paraffin: polyethylene: stearic acid = 0.68: 0.09: 0.15: 0.08 ; The Al-Zn alloy / SiC ceramic transition layer is formed by uniformly sintering the matrix Al-Zn alloy powder, SiC ceramic powder and ...

Embodiment 3

[0035] Metal / ceramic three-layer composite material embodiment of the present invention The thickness of the metal layer is 2.5 mm, the thickness of the ceramic layer is 2.5 mm, the thickness of the metal / ceramic transition layer is 7 mm, and the metal / ceramic transition layer is located between the metal layer and the ceramic layer.

[0036] The metal layer is formed by uniformly sintering the base titanium-nickel alloy powder and additives paraffin, formaldehyde, and soybean oil. The weight ratio is: titanium-nickel alloy powder: paraffin: formaldehyde: soybean oil=0.65:0.15:0.12:0.8, ceramic The layer composition consists of Al 2 o 3 Ceramic powder and additives paraffin, polyethylene and stearic acid are evenly mixed and sintered, and its weight ratio is: Al 2 o 3 Ceramic powder: paraffin wax: polyethylene: stearic acid = 0.65: 0.11: 0.14: 0.10; the metal / ceramic transition layer is made of matrix titanium-nickel alloy powder, Al 2 o 3 Ceramic powder and additives are ...

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Abstract

The invention discloses a metal / ceramic three-layer composite material, a preparation process and application thereof. The metal / ceramic three-layer composite material consists of a metal layer, a ceramic layer and a metal / ceramic transition layer, wherein the metal / ceramic transition layer is positioned between the metal layer and the ceramic layer, the thickness of the metal / ceramic transition layer accounts for 50 to 75 percent of the total thickness of the composite material, and the thicknesses of the metal layer and that of the ceramic layer are equal. The invention also comprises the preparation process for the metal / ceramic three-layer composite material. The metal / ceramic three-layer composite material has the advantages of good abrasion resistance, high temperature resistance and corrosion resistance; and a hydraulic cylinder which is assembled with a cylinder barrel made of the composite material has stable and reliable work, long service life and low maintenance cost.

Description

technical field [0001] The invention relates to a metal / ceramic composite material and its preparation process and application, in particular to a metal / ceramic three-layer composite material and its preparation process and application. Background technique [0002] The unification of multiple properties such as wear resistance and toughness of materials is one of the hotspots in modern material research. [0003] Ceramic is a high-performance material integrating wear resistance, high temperature resistance, high hardness and corrosion resistance. However, at room temperature, it has poor toughness and is difficult to shape. Plasticity and toughness, combining these two materials through a certain process to form a new structural material should be able to have the advantages of both. [0004] Hydraulic cylinders are more and more widely used in daily life and production. The main problem is that as the hydraulic cylinders are used longer, the inner wall of the hydraulic c...

Claims

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Application Information

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IPC IPC(8): B32B15/04B32B18/00B22F7/02C22C1/05C04B35/632C04B35/64F16J10/02
Inventor 曾广胜刘跃军江太君石璞
Owner 李新桥