CN103045988A - Method for processing anti-corrosive surface through oxidation - Google Patents
Method for processing anti-corrosive surface through oxidation Download PDFInfo
- Publication number
- CN103045988A CN103045988A CN 201110323973 CN201110323973A CN103045988A CN 103045988 A CN103045988 A CN 103045988A CN 201110323973 CN201110323973 CN 201110323973 CN 201110323973 A CN201110323973 A CN 201110323973A CN 103045988 A CN103045988 A CN 103045988A
- Authority
- CN
- China
- Prior art keywords
- machining
- cylinder sleeve
- sleeve
- carrying
- oxidation
- 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
Images
Abstract
The invention relates to a method for processing an anti-corrosive surface through oxidation. The method comprises the following steps of carrying out crude machining and semifinishing machining on a cylinder sleeve; when the semifinishing machining is carried out on an outer circumference, machining unassembled parts, such as a water sleeve and a skirt part, to meet the requirements of finished products, and carrying out tempering process to generate an oxidized layer on the surface of the cylinder sleeve after the tempering process; and carrying out finish-machining on the tempered cylinder sleeve, and machining the assembly sizes of an assembly waistband, shoulder and the like and an inner hole to be matched with the requirements of the finished products, so that a water sleeve part of the cylinder sleeve does not need to be painted and does not need other chemical processes. The cylinder sleeve after the tempering process has reduced inner stress, the size of the assembled cylinder sleeve is stable, and the oxidized layer generated through the tempering step can prevent corrosion during transportation and storage and improves the cavitation erosion resistance during application.
Description
Affiliated technical field
The present invention relates to the anti-cavitation pitting treatment process of large-power marine diesel engines cylinder sleeve.
Background technology
Large-power marine diesel engines is because its operating mode poor stability, adopt simultaneously the coolings such as seawater more, the cavitation pitting problem that the water jacket wall position produces is comparatively serious, the cylinder sleeve Problem of Failure that causes is comparatively general, in order to improve the anti-cavitation pitting ability of its cylinder sleeve, method comparatively commonly used is its part to be carried out the methods such as chemical treatment and japanning now, has both increased the production cost of product, also environment is caused certain harm.
Summary of the invention
In order to improve the anti-cavitation pitting ability of marine diesel cylinder liner, the invention provides a kind of thermal treatment and process for machining, by complete processing in this, can eliminate the larger internal stress that produces in castingprocesses and the roughing process, can also improve the ability of the anti-cavitation pitting of protection against corrosion of product.
The technical solution adopted for the present invention to solve the technical problems is, in mach semi-finishing its water jacket spot size is worked into final dimension, then cylinder jacket semi-finished product is carried out the destressing temper, only process its fitting surface after the processing, the water jacket position keeps the zone of oxidation that tempering process produces.
The invention has the beneficial effects as follows, this treatment process is convenient to be produced, and has also eliminated the internal stress of product simultaneously, and the anti-cavitation pitting in water jacket position has also been saved the Chemicals such as paint that the product protection against corrosion needs, and has reduced the pollution of pollutent to environment.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
This accompanying drawing is the process flow diagram that marine diesel cylinder liner is produced.
Embodiment
The technical solution adopted for the present invention to solve the technical problems is: the cast blank of cylinder sleeve carries out roughing, and roughing contains roughing cylindrical and roughing endoporus, at first is with the roughing of liner blank cylindrical, then processes endoporus with excircle orientation.Again semi-finishing, the outer bowlder of semi-finishing, the non-assembling positions such as water jacket, skirt section are worked into the finished product requirement, then temper, tempering requires to be warming up to 600 ℃-610 ℃ per hour not to be higher than 60 ℃, is incubated 4-5 hour, is cooled to 220 ℃ of coolings of coming out of the stove per hour to be not more than 30 ℃.Cylinder-barrel surface through temper produces zone of oxidation.Cylinder sleeve after the tempering is carried out precision work again, to assemble the fitted positions such as waistband and shoulder and endoporus is worked into and meets the finished product requirement, do not paint in the water jacket position of cylinder sleeve like this, also without other chemical treatment, this cylinder sleeve reduces through internal stress after the temper, dimensional stabilizing after the assembling, tempering zone of oxidation can prevent from transporting corrosion in the storage process and occur and strengthen anti-cavitation pitting ability in the use procedure.
Claims (1)
1. an oxide treatment surface anticorrosion etching method is characterized in that: the water sleeve skirt section is worked into final dimension after the cylinder sleeve semi-finishing, temper then, and water jacket, skirt section keep the tempering zone of oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110323973 CN103045988A (en) | 2011-10-17 | 2011-10-17 | Method for processing anti-corrosive surface through oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110323973 CN103045988A (en) | 2011-10-17 | 2011-10-17 | Method for processing anti-corrosive surface through oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103045988A true CN103045988A (en) | 2013-04-17 |
Family
ID=48058846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110323973 Pending CN103045988A (en) | 2011-10-17 | 2011-10-17 | Method for processing anti-corrosive surface through oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103045988A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392623A (en) * | 2019-08-13 | 2021-02-23 | 通用汽车环球科技运作有限责任公司 | Coated cylinder liner |
-
2011
- 2011-10-17 CN CN 201110323973 patent/CN103045988A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392623A (en) * | 2019-08-13 | 2021-02-23 | 通用汽车环球科技运作有限责任公司 | Coated cylinder liner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111545584B (en) | Cold-drawing honing manufacturing method for thin-wall cylinder pressure-resistant cabin of underwater vehicle | |
| CN104588682A (en) | Turning method of long thin wall composite shell body formed by metal and glass fiber reinforced plastics | |
| CN102950434B (en) | A kind of oil transfer pump gear preparation method | |
| CN104174690A (en) | Production process of sanitary stainless steel seamless pipe | |
| CN103045988A (en) | Method for processing anti-corrosive surface through oxidation | |
| CN104404488B (en) | A kind of aluminium alloy non-chromium passivator and preparation method thereof | |
| CN109794731A (en) | A kind of hollow bolt and its processing technology | |
| CN203649438U (en) | Combined cutting tool | |
| CN102417954A (en) | Surface oxidation anti-cavitation treatment method | |
| CN106425321A (en) | Method for controlling deformation of small diameter thin-walled special-shaped rotating part | |
| CN104405770B (en) | The dimension chain of pivoting support controls and surface powder injection process | |
| CN102049660A (en) | Anti-corrosion and anti-cavitation part processing technique | |
| CN205172743U (en) | Increase wet liner on nitrogen treatment layer | |
| CN203592164U (en) | Internal cooling system for deep hole boring head tool | |
| CN103526265A (en) | Surface treatment process for magnesium alloy | |
| CN204113355U (en) | The turbosupercharger that a kind of turbine end sealing configuration is optimized | |
| CN204420011U (en) | A kind of harmonic speed reducer | |
| CN110965100A (en) | Micro-arc oxidation and hard anodization process method for forged aluminum alloy cylinder | |
| CN209206497U (en) | The dedicated mandrel tool of high precision machine tool belt pulley dynamic balancing | |
| CN203092809U (en) | Water screen type water spraying system of graphite machine | |
| CN202464113U (en) | Mounting structure for watertight top rudder carrier of rudder system of ship | |
| CN109277645B (en) | Broaching machining method for rectangular internal spline of titanium alloy thin-wall part | |
| CN103611958B (en) | Deep-hole boring head cutter inner cooling but system | |
| CN204976087U (en) | Machine tooling pyriform special fixture of breaking out | |
| CN206487579U (en) | A kind of diesel oil high pressure fuel injection device guide sleeve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |