CN101386903A - Application of laser heat treatment technology in marine diesel cylinder liner - Google Patents
Application of laser heat treatment technology in marine diesel cylinder liner Download PDFInfo
- Publication number
- CN101386903A CN101386903A CNA2007101321300A CN200710132130A CN101386903A CN 101386903 A CN101386903 A CN 101386903A CN A2007101321300 A CNA2007101321300 A CN A2007101321300A CN 200710132130 A CN200710132130 A CN 200710132130A CN 101386903 A CN101386903 A CN 101386903A
- Authority
- CN
- China
- Prior art keywords
- heat treatment
- quenching
- laser
- cylinder sleeve
- marine diesel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 17
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000010791 quenching Methods 0.000 claims abstract description 15
- 230000000171 quenching effect Effects 0.000 claims abstract description 15
- 238000013532 laser treatment Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000003921 oil Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Heat Treatment Of Articles (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to application of a laser heat treatment technology in a cylinder sleeve of a marine diesel engine, in particular to application of a laser heat treatment technology in the configuration of a large-scale ocean marine diesel engine, that is a laser irradiation quenching technology is adopted to carry out heat treatment on the inner furnace of the cylinder sleeve of the marine diesel engineer so that the surface of the inner wall of the cylinder sleeve obtains a hardening layer with certain hardness and depth and improves the wearing resistance and the anti-cavitation property of the inner wall of an oil cylinder; the deformation amount of laser treatment is between 1/20 and 1/30 of the deformation amount of the prior heat treatment; the deformation amount is small, basically keeps the original state of the cylinder sleeve before quenching and has good sealing and pair matching performances with a piston ring; the largest hardness value of laser quenching is HRC66 and is higher than the hardness value HRC54 after the prior quenching; the depth of a quenching layer reaches between 3 and 3.5 millimeters, and the width is between 2 and 2.5 millimeters; therefore, the cylinder sleeve reaches the requirements on high wearing resistance and anti-cavitation property.
Description
Technical field
The present invention relates to the application of a kind of laser heat treatment technology in marine diesel cylinder liner, be particularly useful for the configuration of large-scale oceangoing vessel diesel engine.
Background technology
The boat diesel engine cylinder sleeve of traditional low-alloy cast iron and cast alloy iron material, after using for some time, the endoporus wearing and tearing strengthen, and produce bigger gap between casing wall and the piston, and are poorly sealed, cause leakage, cause engine power to descend, the performance of also can losing the job when serious, resistance to pitcorrosion can be relatively poor simultaneously, in case cylinder sleeve is punctured by cavitation pitting, the also generation that can cause the accident.
Summary of the invention
The present invention uses the laser radiation quenching technology boat diesel engine interior surface of cylinder liner is heat-treated, and makes the hardened layer of the cylinder liner internal wall surface acquisition certain degree of hardness and the degree of depth, has improved the wear resistance and the resistance to pitcorrosion energy of oil cylinder inner wall.
The deflection of laser treatment is 1/20～1/30 of a conventional heat treatment deformation amount, and deflection is very little, keeps the virgin state before cylinder sleeve is quenched substantially, has good sealing and matching property energy with piston ring.
The rate of heating of laser radiation heating of metal is (3-5) * 10
3℃/s, improve more than tens of times than conventional type of heating rate of heating, cool off by the thermal conduction of metal self the heating back, speed of cooling reaches 900 ℃/s, the speed of cooling that is better than the conventional quenching medium, thus the tissue of laser quenching and conventional quenching organize different, from the surface to heart portion, the temperature distribution that tapers off obtains the ideal structural state.
The highest hardness value of laser quenching is HRC66, is higher than hardness value HRC54 behind the conventional quenching, and depth of hardening reaches 3-3.5mm, makes cylinder sleeve reach the requirement of high abrasion.
Laser quenching is divided into two kinds of spirrillum and reticulate patterns.The width of hardenability band is greater than the width of zone of transformation, and the width of general hardenability band is 2-2.5mm.
Description of drawings
Accompanying drawing is a process flow sheet of the present invention.
Embodiment
1. the preparation before the phosphatization
The finished product cylinder sleeve is before phosphatization, and its endoporus must possess higher roughness, and is smooth more good more, need clean up before the phosphatization.
2. phosphatization
For laser scanning is absorbed fully, cylinder sleeve must phosphatization become black, and the degree of depth of black will be consistent, otherwise influences the laser scanning quality.
(1) the hot water clean-out system cleans
Convert water with 3%-5% clean-out system (powdery), water is warmed to 60 ℃-80 ℃, cylinder sleeve is put in the water soaked 15 minutes then.
(2) hot water cleans
Clear water is heated to 75 ℃-100 ℃, cylinder sleeve is put into the pond, soaked 4-5 minute.
(3) phosphatization
According to product requirement, with phosphatization liquid and water proportioning by a certain percentage, be warmed to 110 ℃-115 ℃, cylinder sleeve is put into the phosphatization pond, according to the requirement of thicknesses of layers, generally control 20-25 minute.
(4) cold water cleans
Cleaned 5-6 minute with clean clear water.
(5) drain
Naturally drain or get final product with wind is dried.
3. laser scanning
Sweep velocity 25-40mm/s, Heating temperature is (3-5) * 10
3℃/s, quenching thickness 3-3.5mm.
4. immersion oil
Use 32# machine oil, be warmed up to 60 ℃-100 ℃, cylinder sleeve is put into oil sump soaked 15-20 minute.
Claims (3)
1. the present invention relates to the application of a kind of laser heat treatment technology in marine diesel cylinder liner, be particularly useful for the configuration of large-scale oceangoing vessel diesel engine.
2. the application of a kind of laser heat treatment technology according to claim 1 in marine diesel cylinder liner is characterized in that: the highest hardness value of laser quenching is HRC66, is higher than hardness value HRC54 behind the conventional quenching.
3. the application of a kind of laser heat treatment technology according to claim 1 in marine diesel cylinder liner, it is characterized in that: depth of hardening reaches 3-3.5mm, and the width of hardenability band is 2-2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101321300A CN101386903A (en) | 2007-09-11 | 2007-09-11 | Application of laser heat treatment technology in marine diesel cylinder liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101321300A CN101386903A (en) | 2007-09-11 | 2007-09-11 | Application of laser heat treatment technology in marine diesel cylinder liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101386903A true CN101386903A (en) | 2009-03-18 |
Family
ID=40476573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101321300A Pending CN101386903A (en) | 2007-09-11 | 2007-09-11 | Application of laser heat treatment technology in marine diesel cylinder liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101386903A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703651A (en) * | 2012-06-29 | 2012-10-03 | 上海鸿得利重工股份有限公司 | Manufacturing method for hydraulic system oil cylinder of concrete pump truck and product thereof |
| CN104911303A (en) * | 2015-07-07 | 2015-09-16 | 中原内配集团股份有限公司 | Surface micro-melting treated cylinder jacket and preparation method thereof |
| CN107000137A (en) * | 2014-12-11 | 2017-08-01 | 马勒金属立夫有限公司 | Processing, piston ring and internal combustion engine for obtaining piston ring |
-
2007
- 2007-09-11 CN CNA2007101321300A patent/CN101386903A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703651A (en) * | 2012-06-29 | 2012-10-03 | 上海鸿得利重工股份有限公司 | Manufacturing method for hydraulic system oil cylinder of concrete pump truck and product thereof |
| CN107000137A (en) * | 2014-12-11 | 2017-08-01 | 马勒金属立夫有限公司 | Processing, piston ring and internal combustion engine for obtaining piston ring |
| CN104911303A (en) * | 2015-07-07 | 2015-09-16 | 中原内配集团股份有限公司 | Surface micro-melting treated cylinder jacket and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103205668B (en) | The application in die handle and strand thick stick frame two ends handlebar of the QPQ salt bath compound process | |
| CN102218647B (en) | Texturing and self-lubricating treatment method for metal plastic forming die | |
| CN104232875B (en) | A kind of Technology for Heating Processing of shield machine 3m bearing ring | |
| CN102000824A (en) | Manufacturing method of cam of engine camshaft | |
| CN113215364A (en) | Double-medium quenching and cooling method for fine-grain strengthening and toughening of steel | |
| CN101386903A (en) | Application of laser heat treatment technology in marine diesel cylinder liner | |
| CN102953013B (en) | The preparation technology of hot-forging die transfer mold die steel | |
| CN101591724A (en) | Laser heat treatment technology in the drum type compression cylinder is used | |
| CN101693941B (en) | Method for quenching medium and low carbon alloy structural steel workpieces | |
| Dayanç et al. | The cathodic electrolytic plasma hardening of steel and cast iron based automotive camshafts | |
| CN201068822Y (en) | Novel piston with ceramic membrane protective layer | |
| CN101705348B (en) | Technology for quenching drive half shaft of a truck made from 42CrMo | |
| CN103131824A (en) | Quick cooling quenching technique for electroslag smelting casting large section crankshaft | |
| CN101550884A (en) | Manufacturing method of quenching cylinder sleeve with micro-deformation of inner holes, golden and high frequency | |
| CN101676411A (en) | Laser heat treatment technology of oil cylinder of large-scale excavator | |
| CN101153353A (en) | Application of laser heat treatment technology in cylinder cover surface | |
| CN106929638B (en) | A kind of cleaning grade quench method for using hot water as cooling medium | |
| CN201056587Y (en) | Petroleum special oil and casing tube fast aluminizing device | |
| CN201386124Y (en) | Cooling circulating mechanism of heat treatment system for seamless rings | |
| CN102477479A (en) | Nodular cast iron laser hardening technology | |
| CN104455538A (en) | Ball valve ball with high-wearable sealing surface and production method thereof | |
| CN102199698B (en) | Laser reinforcing process for valve seat of cylinder head | |
| CN106916926A (en) | A kind of rich chromium cast iron aqueous-based polymers quenching liquid | |
| CN101649375A (en) | Laser honing technology for cylinder liner of supercharger engine of automobile | |
| CN104762454A (en) | Preparation method and application of special quenching liquid for 50Mn steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090318 |