CN104561480A - Surface treatment method for automobile engine cylinder jacket - Google Patents
Surface treatment method for automobile engine cylinder jacket Download PDFInfo
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- CN104561480A CN104561480A CN201510029610.9A CN201510029610A CN104561480A CN 104561480 A CN104561480 A CN 104561480A CN 201510029610 A CN201510029610 A CN 201510029610A CN 104561480 A CN104561480 A CN 104561480A
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- Prior art keywords
- cylinder jacket
- treatment method
- surface treatment
- automobile engine
- cylinder sleeve
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a surface treatment method for an automobile engine cylinder jacket, and relates to the technical field of the manufacturing of automobile parts. The surface treatment method comprises the following steps: A. roughly machining a cast cylinder jacket blank and tempering the cylinder jacket blank, then semi-finishing inner hole and outer circle parts, and finely turning the outer circle to the size of a finished product, and then roughly and finely honing the inner hole to the size of the finished product; and B. carrying out shot blasting treatment on the cylinder jacket processed as the step A, cleaning and drying the cylinder jacket, packaging and storing the cylinder jacket. Compared with the prior art, the cylinder jacket manufactured by the surface treatment method disclosed by the invention is high in anti-fatigue ability, good in surface stress and capable of solving a problem that the circular bead of the cylinder jacket is easily broken.
Description
Technical field
The present invention relates to auto parts machinery manufacturing technology field, especially a kind of surface treatment method for automobile engine cylinder.
Background technology
Cylinder sleeve is a cylindrical component, is placed in the cylinder body opening of motor car engine, is fixed by cylinder head.Cylinder piston within it hole is reciprocating, and outer by water quench at it, cylinder sleeve and bucket cylinder lid form enclosed space.Motor car engine is because its working load is comparatively large, and again because many combusting heavy oils, Working environment is comparatively severe, and particularly cylinder sleeve is frequently impacted, and can make its fatigue failure for a long time in the past and cause cylinder sleeve shoulder cleavage event to occur, and causing damage to engine.
Summary of the invention
The object of this invention is to provide a kind of automobile engine cylinder cover surface treatment method, it can solve and improve existing cylinder sleeve anti-fatigue ability poor, easily there is the problem that shoulder ruptures.
In order to solve the problem, the technical solution used in the present invention is: the surface treatment method of this automobile engine cylinder cover, comprises the steps:
A, by the liner blank tempering after roughing after casting, then carry out endoporus and the semi-finishing of cylindrical position, then outer circle finish turning is worked into final dimension, then, microhoning thick to endoporus is worked into final dimension;
B, steps A machined after cylinder sleeve carry out shot peening, after completing through cleaning, dry after pack.
In the technical scheme of the surface treatment method of above-mentioned automobile engine cylinder cover; technical scheme can also be more specifically: described shot peening first protects near the position of shoulder with the upper waistband that two block plates are made into the cylinder sleeve that machining completes by semicircle ring set; then use hand-held shotblasting machine, shot peening is carried out to the upper waistband region of the grinding undercut of described cylinder sleeve, lower shoulder face and part.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
Due to adopt the shoulder of exhaust hood cover is completed to machining under assemble grinding undercut position and carry out shot peening, the speed of this shot-peening, flow and shot-peening time can formulate according to the shot-peening area of blaster and cylinder sleeve workpiece, cylinder sleeve anti-fatigue ability after shot peening is improved, and effectively can reduce the problem that rupturing easily appears in cylinder sleeve shoulder.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described:
A surface treatment method for automobile engine cylinder cover, comprises the steps:
A, by the liner blank tempering after roughing after casting, then carry out endoporus and the semi-finishing of cylindrical position, then outer circle finish turning is worked into final dimension, then, microhoning thick to endoporus is worked into final dimension;
B, steps A machined after cylinder sleeve carry out shot peening, after completing through cleaning, dry after pack.
above-mentionedshot peening in step B is first made into semicircle ring set with two block plates to be protected near the position of shoulder by the upper waistband of the cylinder sleeve after completing through machining, then with hand-held shotblasting machine, shot peening is carried out to the upper waistband region of the grinding undercut of this cylinder sleeve, lower shoulder face and part, after remove semicircle ring set; Surface is after shot peening, and cylinder-barrel surface stress, fatigue resistance are improved.
It is high that adopt the present invention to make cylinder sleeve that machining obtains has anti-fatigue ability, surface stress is good, solve the problem that cylinder sleeve shoulder easily ruptures, for the shot-peening that the antifatigue of ship machine cylinder jacket support shoulders lower surface is strengthened, diameter can be adopted to be the cast steel ball of 1.5 millimeters, and shot peening strength adopts conventional A test piece 0.008-0.01 inch.
Claims (2)
1. a surface treatment method for automobile engine cylinder cover, is characterized in that: comprise the steps:
A, by the liner blank tempering after roughing after casting, then carry out endoporus and the semi-finishing of cylindrical position, then outer circle finish turning is worked into final dimension, then, microhoning thick to endoporus is worked into final dimension;
B, steps A machined after cylinder sleeve carry out shot peening, after completing through cleaning, dry after pack.
2. the surface treatment method of automobile engine cylinder cover according to claim 1; it is characterized in that: described shot peening first protects near the position of shoulder with the upper waistband that two block plates are made into the cylinder sleeve that machining completes by semicircle ring set; then use hand-held shotblasting machine, shot peening is carried out to the upper waistband region of the grinding undercut of described cylinder sleeve, lower shoulder face and part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029610.9A CN104561480A (en) | 2015-01-21 | 2015-01-21 | Surface treatment method for automobile engine cylinder jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510029610.9A CN104561480A (en) | 2015-01-21 | 2015-01-21 | Surface treatment method for automobile engine cylinder jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104561480A true CN104561480A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510029610.9A Pending CN104561480A (en) | 2015-01-21 | 2015-01-21 | Surface treatment method for automobile engine cylinder jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104561480A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071298A (en) * | 2009-11-20 | 2011-05-25 | 贾维珍 | Shot blasting and strengthening process |
| CN102416601A (en) * | 2010-09-27 | 2012-04-18 | 贾维珍 | Surface strengthening method |
| CN103128665A (en) * | 2011-11-30 | 2013-06-05 | 徐金兰 | Surface hardening method of automobile part |
-
2015
- 2015-01-21 CN CN201510029610.9A patent/CN104561480A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071298A (en) * | 2009-11-20 | 2011-05-25 | 贾维珍 | Shot blasting and strengthening process |
| CN102416601A (en) * | 2010-09-27 | 2012-04-18 | 贾维珍 | Surface strengthening method |
| CN103128665A (en) * | 2011-11-30 | 2013-06-05 | 徐金兰 | Surface hardening method of automobile part |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |