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Copper-base ceramic cylinder sleeve and powder metallurgy preparation method thereof

A technology of powder metallurgy and ceramic cylinder, which is applied in the field of metallurgy to achieve the effects of uniform material, long service life, heat resistance and corrosion resistance

Inactive Publication Date: 2015-12-16
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention: In order to obtain a cylinder liner that is uniformly fused with a metal powder mixture and a ceramic material and is not prone to cracks, the present invention provides a copper-based ceramic cylinder liner and its powder metallurgy preparation method

Method used

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  • Copper-base ceramic cylinder sleeve and powder metallurgy preparation method thereof

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Effect test

Embodiment 1

[0024] A copper-based ceramic cylinder liner, which is made of the following raw materials in proportions by weight: 18 parts of copper powder, 13 parts of nano-copper oxide particles, 12 parts of graphene powder, 9 parts of titanium oxide, 14 parts of silicon carbide, 9 parts of silicon, 10 parts of silicon dioxide, 5 parts of dispersant, 22 parts of water.

[0025] A powder metallurgy preparation method for a copper-based ceramic cylinder liner, comprising the following steps:

[0026] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water at a mass ratio of 1:1.1 during the grinding process, add dispersant after mixing thoroughly, and continue ball milling for 3 hours;

[0027] (2) Drying the mixture prepared in step (1) and spray granulating;

[0028] (3) Put the powder mixture, copper powder, nano-copper oxide particles, graphene powder and titanium oxide fine powder obtained in step (2) in the mixing device, and blow the a...

Embodiment 2

[0032] A copper-based ceramic cylinder liner, which is made of the following raw materials in proportions by weight: 27 parts of copper powder, 21 parts of nano-copper oxide particles, 19 parts of graphene powder, 13 parts of titanium oxide, 23 parts of silicon carbide, 14 parts of silicon, 17 parts of silicon dioxide, 11 parts of dispersant, 32 parts of water.

[0033] A powder metallurgy preparation method for a copper-based ceramic cylinder liner, comprising the following steps:

[0034] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water at a mass ratio of 1.2:1.3 during the grinding process, add dispersant after mixing well, and continue ball milling for 4 hours;

[0035] (2) Drying the mixture prepared in step (1) and spray granulating;

[0036] (3) Put the powder mixture, copper powder, nano-copper oxide particles, graphene powder and titanium oxide fine powder obtained in step (2) in the mixing device, and blow the ab...

Embodiment 3

[0040] A copper-based ceramic cylinder liner, which is made of the following raw materials in proportions by weight: 31 parts of copper powder, 28 parts of nano-copper oxide particles, 25 parts of graphene powder, 18 parts of titanium oxide, 31 parts of silicon carbide, 15 parts of silicon, 22 parts of silicon dioxide, 14 parts of dispersant, 36 parts of water.

[0041] A powder metallurgy preparation method for a copper-based ceramic cylinder liner, comprising the following steps:

[0042] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water at a mass ratio of 1.2:1.5 during the grinding process, add dispersant after mixing well, and continue ball milling for 5 hours;

[0043] (2) Drying the mixture prepared in step (1) and spray granulating;

[0044] (3) Put the powder mixture, copper powder, nano-copper oxide particles, graphene powder and titanium oxide fine powder obtained in step (2) in the mixing device, and blow the ab...

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Abstract

The invention discloses a copper-base ceramic cylinder sleeve and a powder metallurgy preparation method thereof. The ceramic cylinder sleeve comprises, by weight, 18-31 parts of copper powder, 13-28 parts of nanometer copper oxide particles, 12-15 parts of graphene powder, 9-18 parts of titanium oxide, 14-31 parts of silicon carbide, 9-15 parts of silicon nitride, 10-22 parts of silicon dioxide, 5-14 parts of dispersing agent and 22-36 parts of water. Compared with the prior art, the copper-base ceramic cylinder sleeve and the powder metallurgy preparation method have the following beneficial effects that firstly, by means of the copper-base ceramic cylinder sleeve, metal powder and ceramic materials are mixed evenly through the powder metallurgy method, a blank is manufactured in an isostatic pressing manner, and accordingly it can be guaranteed that the cylinder sleeve obtained through preparing is even in material and not prone to crack; secondly, compared with a cylinder sleeve in the prior art, the abrasive resistance, tenacity, strength, thermal resistance and corrosion resistance of the copper-base ceramic cylinder sleeve are greatly improved, and the long service life is achieved; and thirdly, the preparation method of the copper-base ceramic cylinder sleeve is simple in technology, little in consumed energy and not prone to polluting the environment.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a copper-based ceramic cylinder liner and a powder metallurgy preparation method thereof. Background technique [0002] The working environment of the cylinder liner is harsh, and the requirements for the material of the cylinder liner are very high. It needs to have good toughness, wear resistance, heat resistance, corrosion resistance and sufficient strength. Therefore, the current practice is to use metals that meet the above mechanical performance requirements. The cylinder liner is made of different materials, resulting in a very high cost of the cylinder liner. In the prior art, the inner and outer surfaces of the cylinder liner are treated by a melting process, which can not only ensure the mechanical properties of the cylinder liner but also reduce the cost of the cylinder liner. [0003] Chinese patent CN201310241740X discloses a nickel-based cermet alloy powder spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/16
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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