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Protection coating construction process

A technology of protective coating and construction technology, applied in metal material coating technology, coating, pressure inorganic powder coating and other directions, can solve the problems of increased cylinder weight, thermal performance mismatch, etc., to facilitate lubrication performance, avoid Substrate burnout and good coating adhesion

Pending Publication Date: 2019-06-14
罗远新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cast iron liners generally add weight to the block and can cause a thermal mismatch between aluminum blocks and cast iron liners

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Further detailed explanation through specific implementation mode below:

[0018] In at least one embodiment, the protective coating construction process includes a pretreatment stage and a spraying stage; pretreatment stage: pretreating the substrate; spraying stage: heating the metal powder or wire to a semi-molten or molten state, and accelerating the injection by gas To the surface of the substrate to be sprayed, its terminal speed reaches at least 50m / s, and accumulates on the surface of the substrate; the angle between the surface to be processed of the substrate and the moving direction of the accelerated metal material is 20-90 degrees, and the angle is 20-90 degrees Or any subrange therein can be 90 degrees, 80 degrees, 70 degrees, 45 degrees, 20 degrees or 20-45 degrees or 45-90 degrees or 20-89 degrees or 30-45 degrees.

[0019] The rise of coating pores will lead to lower wear resistance and lower coating strength. Therefore, it is generally recognized in th...

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PUM

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Abstract

The invention relates to the technical field of matrix protection coating processing, in particular to a protection coating construction process which comprises a spraying stage: heating metal powderor a metal wire to a semi-molten state or a molten state, accelerating through gas until the speed exceeds 100m / s, spraying to the surface of matrix to be coated, and accumulating to the surface of the matrix, wherein the terminal speed reach to at least 50m / s; and an included angle between a surface to be processed of the matrix and the movement direction of the accelerated metal material is 20 to 90 degrees. According to the protection coating construction process provided by the invention, the wear of the matrix can be reduced.

Description

technical field [0001] The invention relates to the field of protective coating processing. Background technique [0002] An engine block (cylinder block) may include one or more cylinder bores that accommodate pistons of an internal combustion engine. The engine block may, for example, be cast from cast iron or aluminium. Aluminum is lighter than cast iron and can be selected to reduce vehicle weight and improve fuel economy. Aluminum engine blocks may include cylinder liners, such as cast iron liners. Aluminum engine blocks can include coatings on the cylinder bore surface if there is no cylinder liner. Cast iron liners generally add weight to the block and can cause a thermal mismatch between aluminum blocks and cast iron liners. Linerless cylinder blocks may receive a coating (eg, a plasma-coated cylinder bore process) to reduce wear and / or friction. Contents of the invention [0003] The purpose of the present invention is to provide a protective coating construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/06C23C4/12C23C4/129C23C4/131C23C4/134C23C24/04C23C24/08
Inventor 罗远新
Owner 罗远新
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