CN1088989A - A kind of IC engine cylinder body and cylinder sleeve of laser treatment - Google Patents
A kind of IC engine cylinder body and cylinder sleeve of laser treatment Download PDFInfo
- Publication number
- CN1088989A CN1088989A CN 92115071 CN92115071A CN1088989A CN 1088989 A CN1088989 A CN 1088989A CN 92115071 CN92115071 CN 92115071 CN 92115071 A CN92115071 A CN 92115071A CN 1088989 A CN1088989 A CN 1088989A
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- cylinder sleeve
- cylinder
- cylinder body
- laser
- laser treatment
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of IC engine cylinder body and cylinder sleeve of laser treatment, it utilizes laser that the cylinder body and cylinder sleeve inwall is heat-treated, make hardenability band constitute waffle-like pattern, thereby the wear resistance and the oilness of cylinder sleeve have been improved greatly, surface hardness can improve 3-5 times, and matching property can be good, is the regeneration product of boron alloy cast iron cylinder body and cylinder sleeve, save a large amount of rare alloy materials, have good economic benefit and social benefit.
Description
The present invention relates to a kind of improved IC engine cylinder body and cylinder sleeve, belong to technical field of internal combustion engines.
The cylinder body and cylinder sleeve of oil engine (hereinafter to be referred as cylinder sleeve) is a cylindrical cavity, and piston is made high-speed motion therein.Because inboard wall of cylinder liner often contacts with high temperature, highly compressed combustion gas, and speed is very high, so require that inwall is necessary high temperature resistant, antifriction damage, corrosion-resistant.Except that aspect material, adopting the manufacturing of high-quality graphitic cast iron, also add a small amount of alloying element therein for this reason, and adopt laser technology to carry out surface treatment.At present, the cylinder sleeve of up-to-date laser treatment is the spiral groove striated structure, and this structure has improved the wear resistance of cylinder sleeve greatly, has prolonged work-ing life.But, use the back that product is detected discovery in reality, undressed then softer relatively through the graphitic cast iron formation hard skeleton of laser treatment, easily by abrasion, thereby form the hurricane band ditch, be unfavorable for that store oil is lubricated.
The objective of the invention is to develop a kind of new cylinder sleeve of laser treatment, it can fully keep the advantage of laser treatment, and can improve its lubricity greatly.
The object of the present invention is achieved like this: adopt laser that inboard wall of cylinder liner is handled, make it form latticed soft and hard alternation tissue, the invention will be further described below with reference to accompanying drawing.
Fig. 1 is that inboard wall of cylinder liner grid hardenability band launches synoptic diagram.
Fig. 2 is that barber-pole stripes shape hardenability band launches synoptic diagram.
The present invention is when carrying out the inner wall laser processing to cylinder body and cylinder sleeve, its maximum characteristics are to make the laser hardening band constitute latticed pattern.Its angle α selects between 120-150 °, and the bandwidth of hardenability band is 2-4mm, is φ 47-120mm as cylinder diameter, and the hardenability band spacing is 6-17mm.Depth of hardening zone is 0.1-0.3mm(load 100g).
The material of cylinder body and cylinder sleeve generally is the HT20-40 common grey iron, and its standard weave is a perlite, also has a spot of ferrite in addition.After above-mentioned laser treatment, phase transformation has taken place in metal structure, and inwall forms the weave construction of soft and hard alternation, and hardenability band is latent needle type martensite, residual austenite.The part that its end is processed to, metal construction does not change.Like this, when piston in cylinder sleeve during high-speed motion, treated hardenability band will become hard skeleton, improve wear resistance, improve the antifriction value more than 1.5 times than the boron alloy cylinder sleeve.In friction process, soft matrix is incited somebody to action at first abrasion and is caved in, and forms rhombus store oil structure, thereby improve the cylinder sleeve oilness, in addition, go because the impurity or the grain that rubs are easy to imbed in the soft matrix, make the cylinder sleeve surface also have good tension and hinder ability, prolonged the work-ing life of cylinder sleeve.
When selecting laser apparatus, can select with GLS-1 type laser-processing system.Laser power is 500-1200W, and the sweep velocity setting range is 25-35mm/s.During processing, workpiece is placed on the rotary table, utilize microcomputer control laser power and pitch parameter, impose different treatment at the cylinder sleeve different sites, abrasion is carried out intensive treatment than large part, generally handle at the less position of abrasion, makes the sclerosis area in the travel of piston scope be not less than 40-60%.
Utilize the present invention to 212 cylinder sleeves, 815 cylinder sleeves, Fiat's 80,90 air pumps and motorcycle cylinder cover carry out laser treatment, after testing, its work-ing life and wear resistance have all surpassed the domestic boron alloy cast iron cylinder body and cylinder sleeve product that generally adopts, and surface hardness improves 3-5 doubly, microhardness is HV700-900, and join and pay excellent property, can save a large amount of rare alloy materials, have good economic benefits and social benefit.
Claims (4)
1, a kind of IC engine cylinder body and cylinder sleeve of laser treatment, it is the material manufacturing with graphitic cast iron, and utilizes laser to come the inwall of cylinder body and cylinder sleeve is heat-treated, and it is characterized in that, the laser hardening band constitutes waffle-like pattern.
2, cylinder body and cylinder sleeve according to claim 1 is characterized in that, the angle α of laser hardening band is 120-150 °.
3, cylinder body and cylinder sleeve according to claim 2 is characterized in that the hardenability band bandwidth is 2-4mm.
4, cylinder body and cylinder sleeve according to claim 3 is characterized in that, the hardenability band depth of hardening zone is 0.1-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115071 CN1088989A (en) | 1992-12-29 | 1992-12-29 | A kind of IC engine cylinder body and cylinder sleeve of laser treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92115071 CN1088989A (en) | 1992-12-29 | 1992-12-29 | A kind of IC engine cylinder body and cylinder sleeve of laser treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088989A true CN1088989A (en) | 1994-07-06 |
Family
ID=4947250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92115071 Pending CN1088989A (en) | 1992-12-29 | 1992-12-29 | A kind of IC engine cylinder body and cylinder sleeve of laser treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088989A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108227C (en) * | 1999-06-09 | 2003-05-14 | 杜学义 | Dry laser cylinder jacket for internal combustion engine and its usage and forming cutter ` |
| CN102179629A (en) * | 2011-03-21 | 2011-09-14 | 中国科学院力学研究所 | System for carrying out laser etching on internal wall of cylinder liner of internal combustion engine and processing method thereof |
| CN103014313A (en) * | 2012-11-30 | 2013-04-03 | 河南省中原内配股份有限公司 | Method for strengthening cylinder sleeve |
| CN101573206B (en) * | 2006-10-20 | 2013-11-20 | H.E.F.公司 | Friction element operating at a contact pressure of greater than 200MPa in a working lubricating medium and use thereof in the automotive field |
| CN104455407A (en) * | 2014-11-03 | 2015-03-25 | 中国船舶重工集团公司第十二研究所 | Cylinder inner wall network oil storage structure manufacturing method |
| CN111906499A (en) * | 2020-06-29 | 2020-11-10 | 东风商用车有限公司 | Inner ring surface reinforced automobile saddle opening end cover and processing method thereof |
-
1992
- 1992-12-29 CN CN 92115071 patent/CN1088989A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1108227C (en) * | 1999-06-09 | 2003-05-14 | 杜学义 | Dry laser cylinder jacket for internal combustion engine and its usage and forming cutter ` |
| CN101573206B (en) * | 2006-10-20 | 2013-11-20 | H.E.F.公司 | Friction element operating at a contact pressure of greater than 200MPa in a working lubricating medium and use thereof in the automotive field |
| CN102179629A (en) * | 2011-03-21 | 2011-09-14 | 中国科学院力学研究所 | System for carrying out laser etching on internal wall of cylinder liner of internal combustion engine and processing method thereof |
| CN103014313A (en) * | 2012-11-30 | 2013-04-03 | 河南省中原内配股份有限公司 | Method for strengthening cylinder sleeve |
| CN104455407A (en) * | 2014-11-03 | 2015-03-25 | 中国船舶重工集团公司第十二研究所 | Cylinder inner wall network oil storage structure manufacturing method |
| CN111906499A (en) * | 2020-06-29 | 2020-11-10 | 东风商用车有限公司 | Inner ring surface reinforced automobile saddle opening end cover and processing method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |