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Built-in cylinder liner of automobile engine and powder metallurgy preparation method thereof

An automobile engine and powder metallurgy technology, applied in the metallurgical field, can solve the problems of wear, increased cylinder wear, maintenance wear, etc., and achieve the effects of strong wear resistance, good heat dissipation, and low energy consumption

Inactive Publication Date: 2015-12-02
SUZHOU NETABHAPE COMPOSITE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(4) Ingress of mechanical impurities aggravates wear in the middle of the cylinder
[0004] In addition, there are wear and tear caused by improper use and wear and tear caused by improper maintenance.

Method used

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  • Built-in cylinder liner of automobile engine and powder metallurgy preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A built-in cylinder liner for an automobile engine, which is made of the following raw materials in proportions by weight: 14 parts of silicon carbide, 13 parts of silicon nitride, 11 parts of silicon dioxide, 8 parts of zirconium silicate, 4 parts of zirconia, nano-oxidized 7 parts of copper, 9 parts of nano-graphene powder, 3 parts of nano-aluminum silicate, 7 parts of nano-magnesium oxide, 5 parts of dispersant, and 18 parts of water.

[0025] A powder metallurgy preparation method for a built-in cylinder liner of an automobile engine, 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 1:1.2 during the grinding process, add dispersant after mixing well, and continue ball milling for 3.5 hours;

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

[0028] (3) Put the powder mixture obtained in step (2), zirconium silicate, zirconia, n...

Embodiment 2

[0032] A built-in cylinder liner for an automobile engine, which is made of the following raw materials in proportions by weight: 33 parts of silicon carbide, 28 parts of silicon nitride, 22 parts of silicon dioxide, 14 parts of zirconium silicate, 12 parts of zirconia, nano-oxide 13 parts of copper, 15 parts of nano-graphene powder, 7 parts of nano-aluminum silicate, 11 parts of nano-magnesium oxide, 15 parts of dispersant, and 30 parts of water.

[0033] A powder metallurgy preparation method for a built-in cylinder liner of an automobile engine, 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 1.2:1.5 during the grinding process, add dispersant after mixing well, and continue ball milling for 5 hours;

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

[0036] (3) Put the powder mixture obtained in step (2), zirconium silicate, zirconia...

Embodiment 3

[0040] A built-in cylinder liner for an automobile engine, which is made of the following raw materials in proportions by weight: 37 parts of silicon carbide, 32 parts of silicon nitride, 26 parts of silicon dioxide, 17 parts of zirconium silicate, 17 parts of zirconia, nano-oxide 17 parts of copper, 19 parts of nano-graphene powder, 11 parts of nano-aluminum silicate, 13 parts of nano-magnesium oxide, 18 parts of dispersant, and 35 parts of water.

[0041] A powder metallurgy preparation method for a built-in cylinder liner of an automobile engine, 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 1.4:1.5 during the grinding process, add dispersant after mixing well, and continue ball milling for 5.5 hours;

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

[0044] (3) Put the powder mixture obtained in step (2), zirconium silicate, zirco...

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Abstract

The invention discloses a built-in cylinder liner of an automobile engine and a powder metallurgy preparation method thereof. The cylinder liner is prepared from the following raw materials in parts by weight: 14-37 parts of silicon carbide, 13-32 parts of silicon nitride, 11-26 parts of silicon dioxide, 8-17 parts of zirconium silicate, 4-17 parts of zirconium oxide, 7-17 parts of nano copper oxide, 9-19 parts of nano graphene powder, 3-11 parts of nano aluminum silicate, 7-13 parts of nano magnesium oxide, 5-18 parts of a dispersing agent and 18-35 parts of water. Compared with the prior art, the built-in cylinder liner has the advantages that (1) the built-in cylinder liner of an automobile engine is applicable to heavy-load engines and aluminum alloy cylinder engines, and has strong abrasion resistance, high temperature resistance and excellent heat dissipation performance; (2) the built-in cylinder liner has good rigidity, strong toughness and strong compactness, and is convenient to assemble; and (3) the powder metallurgy preparation method of the built-in cylinder liner has simple process flow, short period and small energy consumption, and cannot easily cause environment pollution.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to an automobile engine built-in cylinder liner and a powder metallurgy preparation method thereof. Background technique [0002] The working environment of the cylinder liner of the gas vehicle internal combustion engine is very harsh, and there are many reasons for the wear and tear. Usually due to structural reasons, normal wear is allowed, but improper use and maintenance will cause abnormal wear. [0003] Among them, the main causes of wear caused by structural reasons are as follows: (1) The lubrication condition is not good, so that the upper part of the cylinder liner is severely worn. The upper part of the cylinder liner is adjacent to the combustion chamber, the temperature is very high, and the lubrication condition is very poor. The flushing and dilution of fresh air and unevaporated fuel aggravates the deterioration of the upper condition, making the cylinders in a...

Claims

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Application Information

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IPC IPC(8): C04B35/565C04B35/622
Inventor 刘莉王爽邱晶刘晓东黄明明
Owner SUZHOU NETABHAPE COMPOSITE MATERIALS
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