CN107723770A - A kind of pack alloy cooker surface microarc oxidation treatment process - Google Patents
A kind of pack alloy cooker surface microarc oxidation treatment process Download PDFInfo
- Publication number
- CN107723770A CN107723770A CN201610660231.4A CN201610660231A CN107723770A CN 107723770 A CN107723770 A CN 107723770A CN 201610660231 A CN201610660231 A CN 201610660231A CN 107723770 A CN107723770 A CN 107723770A
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- China
- Prior art keywords
- cooker
- die casting
- casting aluminium
- treatment process
- pack alloy
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/16—Pretreatment, e.g. desmutting
Abstract
A kind of die casting aluminium cooker surface microarc oxidation treatment process, the metal fittings in addition to pack alloy, differential arc oxidation processing formation Al-base ceramic level oxide-film, its major processing steps are carried out to the surfaces externally and internally pack alloy of cooker：（Deoil）Washing differential arc oxidation pure water washes closing.Die casting aluminium cookware appearance that the method is produced is wear-resisting, beautiful, service life is long, practical, while provides new, practical designs and varieties for market again, enriches market, and available, more practical product is added for consumer.And differential arc oxidation process is simple, easy to operate, process stabilizing, the high plant area that takes of production efficiency is small, suitable for batch production.
Description
Technical field
The invention belongs to process of surface treatment in civilian product application field, belongs to critical surfaces technology application category, specifically relates to
A kind of and pack alloy cooker surface microarc oxidation treatment process.
Background technology
The defects of in order to overcome aluminum alloy surface hardness, wear resistance etc., hard anode is used in pot technique processed
Oxidation technology, make aluminum pot hard durable.The quality of hard oxygen is good more many than what is commonly aoxidized, and surface film thicknesses are different, but to aluminium
The overall stiffness changing of material is little.The processing technology of aluminium hardness, which can be changed, heat treatment, solution treatment, quenching timeliness, annealing
Etc., these techniques are only the technique that can change aluminium sheet hardness.But what ineffective PROCESS FOR TREATMENT of aluminium of each series, hardness
It all can only achieve a certain scope.It is inadequate to change cooker surface hardness, wear no resistance, the shortcomings that service life is shorter, adopt
With the technique of differential arc oxidation.Differential arc oxidation is also known as micro-plasma oxidation, is the combination by electrolyte and corresponding electrical parameter,
Pack alloy surface relies on TRANSIENT HIGH TEMPERATURE high pressure caused by arc discharge to act on, and grows the ceramics based on aluminium base oxide
Film layer, die-cast aluminum alloy material surface is obtained more high rigidity, up to 1000-2000HV, while there is good wearability
Can, process, equipment is simple, easy to operate.
The content of the invention
It is inadequate to solve cooker surface hardness, wear no resistance, the shortcomings that service life is shorter, the present invention uses a kind of die casting
Aluminum alloy cooker surface by micro-arc oxidation handling process.Its major processing steps is：
1. first to made of pack alloy cooker carry out cleaning treatment of deoiling；
2. activation process is carried out to cooker surfaces externally and internally again；
3. the cooker after activation process is subjected to micro-arc anodic oxidation again；
4. pure water is washed, ultrasonic pure water cleaning is carried out to the surfaces externally and internally of cooker, media residues are removed, expose nano ceramics
Level aluminium base oxide surface.
Heavy metal element is free of in microarc oxidation solution, meets ROSH environmental protection standards, reusable after filtering, solution makes
With long lifespan, it can make film layer that there is certain characteristic by the composition of solution is altered or modified or different colors is presented, can also lead to
Cross and change ceramic layer of the technological parameter acquisition with different qualities.
In the oxidizing process of pack alloy after ultrasonic wave and differential arc oxidation combination, using ultrasonic wave, stirring is played
The effect of solution, metal and the concentration gradient at electrolyte solution boundary are reduced, makes CURRENT DISTRIBUTION more uniform, suppressed excessive
The appearance of electric spark, prevent the too fast growth of partial oxidation film；So that alternating current breakdown of the oxide-film in dry environment is strong
Degree improves about 15%~32%, and the alternating current breakdown strength in wet environment improves about 10%~17%.
In micro-arc oxidation process, chemical oxidation, electrochemical oxidation, plasma oxidation exist simultaneously, therefore ceramic layer
Forming process it is extremely complex, the formation of ceramic layer can be described comprehensively by going back the rational model of neither one so far.Differential arc oxidation work
The faraday region that working region is aoxidized by common anode is incorporated into electrion region by skill, overcomes hard anodizing
Defect, drastically increase the combination property of film layer.Differential arc oxidation film layer is firmly combined with matrix, compact structure, and toughness is high, tool
There are the characteristics such as good wear-resisting, corrosion-resistant, high temperature impact resistance and electric insulation.
Beneficial effect
The technology has simple to operate and the characteristics of be easily achieved film layer function point analysis, and technique is uncomplicated, does not cause environment
Pollution, is a brand-new environmental type surface treatment technology of material, has broad application prospects.
Brief description of the drawings
Fig. 1 is micro-arc oxidation device schematic diagram..
Embodiment
A kind of pack alloy cooker surface microarc oxidation treatment process, the surfaces externally and internally pack alloy of cooker is carried out
Differential arc oxidation processing forms Al-base ceramic level oxide-film, the metal fittings in addition to pack alloy, does not make differential arc oxidation processing,
As shown in figure 1, technique key step：
1. first to made of die casting aluminium cooker carry out cleaning treatment of deoiling；
2. activation process is carried out to cooker surfaces externally and internally again；
3. the cooker after activation process carried out into micro-arc anodic oxidation again, i.e., by the combination of electrolyte and corresponding electrical parameter,
Pack alloy surface relies on TRANSIENT HIGH TEMPERATURE high pressure caused by arc discharge to act on, and grows the ceramics based on aluminium base oxide
Film layer
4. pure water is washed, ultrasonic pure water cleaning is carried out to the surfaces externally and internally of cooker, media residues are removed, expose nano ceramics
Level aluminium base oxide surface.
In the oxidizing process of pack alloy after ultrasonic wave and differential arc oxidation combination, it is molten that stirring is played by ultrasonic wave
The effect of liquid, metal and the concentration gradient at electrolyte solution boundary are reduced, makes CURRENT DISTRIBUTION more uniform, suppresses excessive electricity
The appearance of spark, prevent the too fast growth of partial oxidation film；So that alternating current breakdown strength of the oxide-film in dry environment
About 15%~32% is improved, the alternating current breakdown strength in wet environment improves about 10%~17%.
Heavy metal element is free of in microarc oxidation solution, meets ROSH environmental protection standards, reusable after filtering, solution makes
With long lifespan, it can make film layer that there is certain characteristic by the composition of solution is altered or modified or different colors is presented, can also lead to
Cross and change ceramic layer of the technological parameter acquisition with different qualities.
Metal is converted into metal oxide ceramic by differential arc oxidation, and the process of sparking makes ceramic phase with matrix with metallurgy side
Formula combines, and the film layer of formation and the adhesion of matrix are good, even film layer, a quality.Surface ceramii layer is equally distributed blinded
Micropore is that follow-up application processing has prepared good attachment condition, makes sprayed coating be not easy to peel off peeling.
Claims (3)
1. a kind of die casting aluminium cooker surface microarc oxidation treatment process, it is characterised in that its major processing steps is：
（1）First to made of die casting aluminium cooker carry out cleaning treatment of deoiling；
（2）Activation process is carried out to cooker surfaces externally and internally again；
（3）Cooker after activation process is subjected to micro-arc anodic oxidation again；
（4）Pure water is washed, and carries out ultrasonic pure water cleaning to the surfaces externally and internally of cooker, media residues are removed, expose nanometer pottery
Porcelain level aluminium base oxide surface.
A kind of 2. die casting aluminium cooker surface microarc oxidation treatment process according to claim 1, it is characterised in that：Pass through change
Or the composition of adjustment solution makes film layer have certain characteristic or different colors is presented, also tool can be obtained by changing technological parameter
There is the ceramic layer of different qualities.
A kind of 3. die casting aluminium cooker surface microarc oxidation treatment process according to claim 1, it is characterised in that：In ultrasonic wave
In the oxidizing process of pack alloy after being combined with differential arc oxidation, agitating solution is played a part of by ultrasonic wave, reduces gold
Category and the concentration gradient at electrolyte solution boundary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610660231.4A CN107723770A (en) | 2016-08-12 | 2016-08-12 | A kind of pack alloy cooker surface microarc oxidation treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610660231.4A CN107723770A (en) | 2016-08-12 | 2016-08-12 | A kind of pack alloy cooker surface microarc oxidation treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107723770A true CN107723770A (en) | 2018-02-23 |
Family
ID=61200642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610660231.4A Pending CN107723770A (en) | 2016-08-12 | 2016-08-12 | A kind of pack alloy cooker surface microarc oxidation treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107723770A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252200A (en) * | 2018-11-05 | 2019-01-22 | 佛山市南海镕信金属制品有限公司 | A kind of aluminum alloy die casting surface treatment method |
| CN111020665A (en) * | 2019-12-17 | 2020-04-17 | 江门市安诺特炊具制造有限公司 | Pretreatment process for spraying ceramic non-stick coating on aluminum alloy cooker |
-
2016
- 2016-08-12 CN CN201610660231.4A patent/CN107723770A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252200A (en) * | 2018-11-05 | 2019-01-22 | 佛山市南海镕信金属制品有限公司 | A kind of aluminum alloy die casting surface treatment method |
| CN111020665A (en) * | 2019-12-17 | 2020-04-17 | 江门市安诺特炊具制造有限公司 | Pretreatment process for spraying ceramic non-stick coating on aluminum alloy cooker |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |
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| WD01 | Invention patent application deemed withdrawn after publication |