CN101736382A - Surface process for surface strengthened piston - Google Patents
Surface process for surface strengthened piston Download PDFInfo
- Publication number
- CN101736382A CN101736382A CN200810234887A CN200810234887A CN101736382A CN 101736382 A CN101736382 A CN 101736382A CN 200810234887 A CN200810234887 A CN 200810234887A CN 200810234887 A CN200810234887 A CN 200810234887A CN 101736382 A CN101736382 A CN 101736382A
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- piston
- sulphuric acid
- oxidation layer
- electrolysis
- strengthened
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- 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.)
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to a surface process for a surface strengthened piston. A piston is one of core parts of an engine. By utilizing the strong oxidization principle of concentrated sulphuric acid, the surface of a finished product aluminum piston generates a dense oxidation layer under the action of electrolysis of the strong sulphuric acid, and then the oxidation layer is subjected to blackening process. The piston has black appearance, is attractive and generous, improves the surface hardness and strengthens the corrosion and burning resistance by the surface strengthening processing.
Description
Affiliated technical field
The present invention relates to the aluminium piston surface processing technology.
Background technology
Piston is one of core part of engine, also is consumable accessory, thus higher to the mechanical property of piston, but because the reason of aluminium material itself, a little less than its surface hardness reaches and resists burn and erosion-resisting ability.
Summary of the invention
For the surface hardness that improves the aluminium piston and anti-burn and ability such as anticorrosive, the invention provides a kind of aluminium piston face ceramic treatment technology, mechanical workout finishes back finished product piston and handles the outward appearance black of piston by surface ceramic deposition, surface hardness improves, and anti-burn and resistance to corrosion strengthen.
The technical solution adopted for the present invention to solve the technical problems is, utilizes the strong oxidizing property principle of the vitriol oil, and finished product aluminium piston generates compact oxide at the electrolytic action lower surface of strength sulfuric acid, then to the processing of turning black of this zone of oxidation.
The invention has the beneficial effects as follows that piston is handled through surface ceramic deposition, its outward appearance is black, and is elegant in appearance, and its surface hardness improves, and the ability of anticorrosive and anti-burn strengthens.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
This accompanying drawing is a piston ceramic treatment process flow diagram.
Specific implementation method
The technical solution adopted for the present invention to solve the technical problems is: finished product aluminium piston technological process for-electrochemical deoiling-cold water cleaning-hot water clean-dry-go into pond-oxidizing reaction-go out pond-cold water to clean a hot water cleaning-blackout processing-sealing treatment-dry-oil packing.
Electrochemical deoiling is to clean with clean-out system, removes the oil stain of piston face, with the flushing of normal temperature tap water, is cleaning with hot water then, and its temperature is higher simultaneously in the hot water cleaning, dries easily.The air dried piston enters in the electrolyzer of the vitriol oil, piston places the anode of electrolyzer, the concentration of the electrolytic solution vitriol oil is that the 200-250g/l. electrolysis voltage is 24V, electrolysis time 40 minutes, electrolysis is put into out the pond, cold water flush after finishing, reusable heat water cleans, entered the hair blackening liquid sealing treatment 40 minutes, oven dry then, coating slushing oil.
Evenly be coated with the oxide compound of layer of aluminum through as above its surface of cylinder sleeve of ceramic treatment, its surface hardness improves, anti-oxidant, corrosion-resistant.
Claims (1)
1. surface process for surface strengthened piston is characterized in that:
1. when handling the electrolytic solution vitriol oil concentration 200-250g/l.
2. electrolysis time is 40 minutes.
3. electrolysis voltage is 24 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810234887A CN101736382A (en) | 2008-11-20 | 2008-11-20 | Surface process for surface strengthened piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810234887A CN101736382A (en) | 2008-11-20 | 2008-11-20 | Surface process for surface strengthened piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101736382A true CN101736382A (en) | 2010-06-16 |
Family
ID=42460396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810234887A Pending CN101736382A (en) | 2008-11-20 | 2008-11-20 | Surface process for surface strengthened piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101736382A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080386A (en) * | 2010-08-25 | 2013-05-01 | 丰田自动车株式会社 | Internal combustion engine and method of producing same |
-
2008
- 2008-11-20 CN CN200810234887A patent/CN101736382A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080386A (en) * | 2010-08-25 | 2013-05-01 | 丰田自动车株式会社 | Internal combustion engine and method of producing same |
| CN103080386B (en) * | 2010-08-25 | 2015-07-08 | 丰田自动车株式会社 | Internal combustion engine and method of producing same |
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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 |
Application publication date: 20100616 |