CN102513900A - Method for strengthening internal surface of air cylinder sleeve by virtue of surface micro-etching and particle composite filling - Google Patents
Method for strengthening internal surface of air cylinder sleeve by virtue of surface micro-etching and particle composite filling Download PDFInfo
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- CN102513900A CN102513900A CN2011103349523A CN201110334952A CN102513900A CN 102513900 A CN102513900 A CN 102513900A CN 2011103349523 A CN2011103349523 A CN 2011103349523A CN 201110334952 A CN201110334952 A CN 201110334952A CN 102513900 A CN102513900 A CN 102513900A
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Abstract
The invention discloses a method for strengthening an internal surface of an air cylinder sleeve by virtue of surface micro-etching and particle composite filling and belongs to the technical field of strengthening of inner surfaces of air cylinder sleeves of internal-combustion engines. The method is characterized by comprising the following steps of: etching the inner surface of the air cylinder sleeve by use of lasers so as to obtain a micro-pit with a certain depth, a certain area occupation ratio and a certain angle distribution; and then utilizing a ball mill to fill serpentine micro-nano grains with certain grain diameter and self-lubricating and self-repairing functions into the micro-pit. The method provided by the invention has the effects and advantages of carrying out different degrees of the micro-etching composite filling on the inner surface of the air cylinder sleeve, carrying out deep micro-etching filling on the inner surface of the air cylinder sleeve which is in a demanding environment and is seriously abraded, carrying out light micro-etching filling on the parts which are in a relatively better environment and are not seriously abraded, and carrying out multiple times of the self-repairing on the inner surface of the air cylinder sleeve in the use process of the air cylinder sleeve.
Description
Technical field
The invention belongs to cylinder jacket of diesel engine inner surface reinforcement technique field, relate to the self-lubricating and the self-repair function of interior surface of cylinder liner, is a kind of new cylinder cover surface reinforcing method.
Background technology
Present stage, the cylinder-barrel surface intensifying method was more, but great majority are to install and use preceding processed in cylinder jacket, utilized methods such as spraying, nitrogenize to make certain thickness strengthening layer at interior surface of cylinder liner, played wear-resisting effect.But in use, in case strengthening layer is worn, cylinder liner abrasion speed is sharply quickened, and makes the energy, waste of material more.After have again in lubricating oil and to add lubricant with self-lubricating self-repair function solid particle; Make cylinder jacket in use carry out selfreparing to the cylinder jacket after the wearing and tearing; But because the finiteness and the skewness property of additive;, wearing and tearing more serious position relatively harsher to some environment can not guarantee its effective selfreparing, even also be the reparation of single property after repairing, still can cause the significant wastage of material after the time is long.
Summary of the invention
Position fixed point harsh to the interior surface of cylinder liner environment in order to solve, serious wear is strengthened the single property of selfreparing and selfreparing, and the present invention provides a kind of new cylinder cover surface reinforcing method to deal with these deficiencies.
Technical scheme of the present invention is at first interior surface of cylinder liner to be carried out micro etch, and it is certain to form density, and the degree of depth is certain, little hole that distribution angle is certain; On this basis, utilize ball mill to carry out compound, filling through micro-nano granules and the cylinder liner internal wall that extruding, crowded method of oozing will have self-lubricating, self-repair function.In the mechanical milling process, the ball grinder with cylinder jacket replacement ball mill puts in micro-nano granules, ball-milling medium and ball milling with steel ball, with sealing clamp the cylinder jacket two ends are sealed.The effect that stores micro-nano granules is played in little hole, and micro-nano granules is filled in little hole, in use firmly after ball milling; In process of friction and wear; Self-lubricating, self-repair material slowly discharge, and the micro-nano granules after the release utilizes its self-lubricating, self-repair function under the effect of frictional heat; Direct and surface of friction pair produces physics or chemical action, produces wearing layer; Meanwhile, the wearing layer of generation can encapsulate the bore in little hole, slows down the release of self-lubricating selfreparing micro-nano granules in little hole.Along with the increase of fretting wear time, wearing layer is worn away gradually, and at this moment, little near coal-mine footpath is opened once more, and self-lubricating, selfreparing micro-nano granules slowly discharge again, form wearing layer again.This effect can be followed the whole life cycle of friction pair, the secondary wearing and tearing of reducing friction.
Effect of this experimental technique and benefit are to fill the micro etch that interior surface of cylinder liner carries out in various degree; Environment is harsh, the comparatively serious interior surface of cylinder liner of wearing and tearing carries out degree of depth micro etch filling, and environment facies are carried out slight micro etch to better, the not serious position of wearing and tearing; And in the cylinder jacket use, interior surface of cylinder liner is carried out repeatedly selfreparing.
Description of drawings
Fig. 1 is the little hole of the interior surface of cylinder liner after a laser micro etching audio-visual picture.
Fig. 2 is little hole cross section view.
Fig. 3 is a closed ball milling jar sketch map.
Among the figure: 1 ball milling is used steel ball; 2 cylinder jacket; 3 sealing clamps.
Specific embodiments
Below in conjunction with accompanying drawing and concrete operations rules technical scheme of the present invention is described further.
Micro etch then is to utilize high-duty density, and high-octane laser pulse focuses on material surface, makes surfacing heating vaporization, on material, forms little hole.Process little hole degree of depth 100～200 μ m on request, the cylinder jacket under the little pit area occupation rate 30～45% (being the rare close degree in little hole), little hole distribution angle 50～65 ° (being the distribution angle between little hole) is like Fig. 1, shown in 2.Packing material then is the serpentine micro-nano granules, and is obtained by ball mill, and its mean particle dia is in micro-nano rank.It then is to utilize ball mill that cylinder liner internal wall is carried out ball milling to squeeze and to ooze that serpentine micro-nano granules and cylinder jacket are carried out compound; Be placed on entire cylinder cover 2 on the ball mill as ball grinder; Put in serpentine micro-nano granules, ball-milling medium and ball milling with steel ball 1; Seal with 3 pairs of cylinder jacket two ends of sealing clamp, as shown in Figure 3.Ball mill certain rotating speed down operation regular hour 5～10h (hour), ooze, be filled in little hole micro-nano granules is crowded.It is 10: 1～15: 1 that ball milling uses the quality proportioning of steel ball and micro-nano granules.Along with the increase of fretting wear time, wearing layer is worn away gradually, and at this moment, little near coal-mine footpath is opened once more, and self-lubricating, selfreparing micro-nano granules slowly discharge again, form wearing layer again.This effect can be followed the whole life cycle of friction pair, the secondary wearing and tearing of reducing friction.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (5)
1. surface micro etching and the composite filled interior surface of cylinder liner intensifying method of particulate is characterized in that, at first interior surface of cylinder liner are carried out micro etch, form little hole; On this basis, utilize ball mill, the micro-nano granules and the cylinder liner internal wall that will have self-lubricating, self-repair function through extruding, crowded method of oozing carry out compound, filling.
2. interior surface of cylinder liner intensifying method according to claim 1; It is characterized in that; At first interior surface of cylinder liner is carried out micro etch, form little hole degree of depth 100 μ m～200 μ m, little hole that little pit area occupation rate 30～45%, little hole distribution angle are 50 °～65 °; On this basis, utilize ball mill through extruding, crowded oozing compound, filling to be carried out in little hole of micro-nano granules with self-lubricating, self-repair function and interior surface of cylinder liner, ball mill operates in 5～10h.
3. interior surface of cylinder liner intensifying method according to claim 1; It is characterized in that, in the mechanical milling process, replace the ball grinder of ball mill with cylinder jacket; Put in micro-nano granules, ball-milling medium pure water and ball milling with steel ball, the cylinder jacket two ends are sealed with sealing clamp.
4. according to claim 1,2 or 3 described interior surface of cylinder liner intensifying methods, it is characterized in that said micro-nano granules is the serpentine micro-nano granules.
5. interior surface of cylinder liner intensifying method according to claim 4 is characterized in that it is 10: 1～15: 1 that said ball milling uses the quality proportioning of steel ball and micro-nano granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103349523A CN102513900A (en) | 2011-10-28 | 2011-10-28 | Method for strengthening internal surface of air cylinder sleeve by virtue of surface micro-etching and particle composite filling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103349523A CN102513900A (en) | 2011-10-28 | 2011-10-28 | Method for strengthening internal surface of air cylinder sleeve by virtue of surface micro-etching and particle composite filling |
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| Publication Number | Publication Date |
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| CN102513900A true CN102513900A (en) | 2012-06-27 |
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| CN2011103349523A Pending CN102513900A (en) | 2011-10-28 | 2011-10-28 | Method for strengthening internal surface of air cylinder sleeve by virtue of surface micro-etching and particle composite filling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252584A (en) * | 2013-05-10 | 2013-08-21 | 常州大学 | Laser surface texturing corrosive-abrasion-resisting method of large hydraulic cylinder |
| CN105970127A (en) * | 2016-05-25 | 2016-09-28 | 南京航空航天大学 | Method for achieving nano structure on inner surface and outer surface of dual-phase titanium alloy tubular part |
| CN113430046A (en) * | 2021-06-08 | 2021-09-24 | 大连海事大学 | Preparation method of friction-induced metal wear-resistant layer |
Citations (4)
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| JPH106141A (en) * | 1996-06-17 | 1998-01-13 | Nippon Seiko Kk | Manufacture of bearing holder |
| CN1207975A (en) * | 1998-07-03 | 1999-02-17 | 杭州电子工业学院 | Surface pit machining method and equipment |
| CN1326825A (en) * | 2000-06-02 | 2001-12-19 | 杭州电子工业学院 | Surface micro-pit supersonic making method |
| EP2130944A1 (en) * | 2008-06-04 | 2009-12-09 | Messier-Bugatti | Method for treating the surface of a high-strength steel mechanical part, and sealing system obtained by implementing said method |
-
2011
- 2011-10-28 CN CN2011103349523A patent/CN102513900A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH106141A (en) * | 1996-06-17 | 1998-01-13 | Nippon Seiko Kk | Manufacture of bearing holder |
| CN1207975A (en) * | 1998-07-03 | 1999-02-17 | 杭州电子工业学院 | Surface pit machining method and equipment |
| CN1326825A (en) * | 2000-06-02 | 2001-12-19 | 杭州电子工业学院 | Surface micro-pit supersonic making method |
| EP2130944A1 (en) * | 2008-06-04 | 2009-12-09 | Messier-Bugatti | Method for treating the surface of a high-strength steel mechanical part, and sealing system obtained by implementing said method |
Non-Patent Citations (1)
| Title |
|---|
| 付景国: "高能球磨法制备气缸套表面强化层的技术研究", 《大连海事大学硕士学位论文》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252584A (en) * | 2013-05-10 | 2013-08-21 | 常州大学 | Laser surface texturing corrosive-abrasion-resisting method of large hydraulic cylinder |
| CN105970127A (en) * | 2016-05-25 | 2016-09-28 | 南京航空航天大学 | Method for achieving nano structure on inner surface and outer surface of dual-phase titanium alloy tubular part |
| CN113430046A (en) * | 2021-06-08 | 2021-09-24 | 大连海事大学 | Preparation method of friction-induced metal wear-resistant layer |
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Application publication date: 20120627 |