A car cylinder liner

A technology for cylinder liner and car, applied in the direction of cylinder, cylinder head, engine components, etc., can solve the problems of deformation, uneven cylinder hole, can not meet the engine heat dissipation, etc., to reduce the cylinder center distance, solve the cylinder hole deformation, improve the combination rate and bond strength

Active Publication Date: 2018-08-21
ZYNP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, under the requirements of continuously increasing the explosion pressure, reducing weight and reducing the size of the car engine, the existing car cylinder liner can no longer meet the problems of uneven heat dissipation and cylinder bore deformation caused by the improvement of engine performance.

Method used

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  • A car cylinder liner
  • A car cylinder liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] like figure 1 and figure 2 As shown in a, a cylinder liner for a car comprises a cylinder liner substrate 1 and a spray coating 2 sprayed on the outer peripheral surface of the substrate; the outer peripheral surface of the substrate 1 is a helical texture, and the crests of the helical texture are in the form of A straight line perpendicular to the radial direction of the cylinder liner base.

[0021] The preparation method of above-mentioned car cylinder liner, it comprises the steps:

[0022] 1) The base body of the cylinder liner is cut by a lathe to make the outer circumferential surface a spiral pattern;

[0023] 2) Roughen the outer peripheral surface of the cylinder liner substrate, and the roughness Rz of the outer peripheral surface of the cylinder liner substrate after treatment is above 50 μm; the outer peripheral surface is purified; the material used for the roughening treatment is 24-mesh white corundum. Specifically, it may be: using compressed air w...

Embodiment 2

[0027] like figure 1 and figure 2 As shown in b, a cylinder liner for a car, which includes a cylinder liner substrate 1 and a spray coating 2 sprayed on the outer peripheral surface of the substrate; the outer peripheral surface of the substrate 1 is a spiral pattern, and the crest of the spiral pattern is Arc shape perpendicular to the radial direction of the cylinder liner base.

[0028] The preparation method of above-mentioned car cylinder liner, it comprises the steps:

[0029] 1) The base body of the cylinder liner is cut by a lathe to make the outer circumferential surface a spiral pattern;

[0030] 2) Roughen the outer peripheral surface of the cylinder liner substrate, the roughness Rz of the outer peripheral surface of the cylinder liner substrate after treatment is above 60 μm; the outer peripheral surface is purified; the materials used for the roughening treatment are 16 mesh and 24 mesh Mix white corundum. Specifically, it may be: use compressed air with a ...

Embodiment 3

[0034] like figure 1 and figure 2 As shown in c, a cylinder liner for a car comprises a cylinder liner substrate 1 and a spray coating 2 sprayed on the outer peripheral surface of the substrate; the outer peripheral surface of the substrate 1 is a helical texture, and the longitudinal section of the helical texture is composed of It is composed of several dovetail grooves arranged in parallel.

[0035] The preparation method of above-mentioned car cylinder liner, it comprises the steps:

[0036] 1) The base body of the cylinder liner is cut by a lathe to make the outer circumferential surface a spiral pattern;

[0037] 2) Roughen the outer peripheral surface of the cylinder liner substrate, the roughness Rz of the outer peripheral surface of the cylinder liner substrate after treatment is above 40 μm; the outer peripheral surface is purified; the material used for the roughening treatment is steel with a particle size of G17 sand. Specifically, it may be: using compressed...

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Abstract

The invention relates to a car air cylinder sleeve, which comprises an air cylinder sleeve base body and a spraying layer, wherein the spraying layer is sprayed at the surface of the outer circumference of the base body, the surface of the outer circumference of the base body is provided with a spiral grain, a thread crest of the spiral grain forms a straight line or a circular arc shape vertical to the radial direction of the air cylinder sleeve base body, and the longitudinal cross section of the spiral grain consists of a plurality of parallel dovetail grooves. The air cylinder sleeve consists of the air cylinder sleeve base body and the spraying layer; the surface of the outer circumference of the base body is machined into the spiral grain, and then the bonding spraying layer is formed by a hot spraying method. The car air cylinder sleeve has the advantages that the structure is simple, the production is convenient, the production cost is low, the production efficiency is high, the bonding rate and bonding strength of the air cylinder sleeve and the cylinder body are improved, and the problems of nonuniform heat radiating of the cylinder body, deformation of the cylinder holes and the like caused by property improvement of an engine are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of cylinder liners, and in particular relates to a car cylinder liner for casting into an engine cylinder body and a preparation method thereof. Background technique [0002] At present, under the requirements of continuously increasing the explosion pressure, reducing weight and reducing the size of the car engine, the existing car cylinder liner can no longer meet the problems of uneven heat dissipation and cylinder bore deformation caused by the improvement of engine performance. Contents of the invention [0003] The purpose of the present invention is to provide a car cylinder liner and its preparation method, which improves the heat dissipation performance of the engine cylinder block and the deformation of the cylinder hole by improving the bonding ratio and bonding strength of the cylinder liner and the cylinder block. [0004] To achieve the above object, the present invention adopts the following...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02F1/00B23P15/00
CPCB23P15/00F02F1/004
Inventor 邹悟会王勇刘凯飞杨广宁
Owner ZYNP GRP
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