CN108568395A - A kind of lacquer spraying technique substituting die casting aluminium surface anode effect - Google Patents
A kind of lacquer spraying technique substituting die casting aluminium surface anode effect Download PDFInfo
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- CN108568395A CN108568395A CN201810365259.4A CN201810365259A CN108568395A CN 108568395 A CN108568395 A CN 108568395A CN 201810365259 A CN201810365259 A CN 201810365259A CN 108568395 A CN108568395 A CN 108568395A
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- Prior art keywords
- die casting
- blasting treatment
- aluminum products
- casting aluminium
- spraying technique
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/065—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones
- B05D5/066—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects having colour interferences or colour shifts or opalescent looking, flip-flop, two tones achieved by multilayers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
- B05D2350/33—Roughening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/60—Adding a layer before coating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The present invention relates to a kind of lacquer spraying technique substituting die casting aluminium surface anode effect, the aluminum products that die casting is completed carry out first time blasting treatment after polishing treatment；Then surface is carried out to ooze nickel and form surfaces nitrided aluminium layer processing；Using oil removing and washing step；Spray-applied primer and specific finishing coat after second of blasting treatment.The technical program after first time blasting treatment first by carrying out oozing nickel and aln layer processing, to improve the corrosion resistance of aluminum products, then by the priming paint of two layers different colours and finishing coat processing after, punching press aluminium surface true qualities anodic process effect can be formed in die casting aluminium surface.
Description
Technical field
The invention belongs to field of metal surface treatment technology, particularly relate to a kind of spray substituting die casting aluminium surface anode effect
Lacquer craftwork.
Background technology
Although aluminium and its alloy are widely used, but since the electrode potential of aluminium is relatively low, when in wet environment with
When high potential metal contacts, contact corrosion is easily generated.In addition aluminium alloy in the fabrication process, due to pursuing high mechanical property
With otherwise comprehensive performance and add various alloying elements, the presence of these elements make aluminium alloy internal chemical composition and
Nonuniform organization, along with the presence of residual stress in heat treatment and process so that aluminum alloy materials are in use environment
Easily cause micro-cell corrosion.And aluminium alloy is inevitably present humid air in use environment, and these are moist empty
Gas condenses in aluminum alloy material surface and forms moisture film, and more seriously there are the Cl of certain content in humid air-、SO2、
The substances such as H2S, CO2, in this case, aluminum alloy materials are easier that the forms such as spot corrosion, intercrystalline corrosion, stress corrosion occur
It destroys.
Die casting aluminium anodized is a difficult point of Die Casting Industry, and the product colour list of die casting aluminium anodes processing
One, it is confined to the limited color category such as black and aluminium true qualities, cannot achieve the color requirement of die casting aluminium product.
How die casting aluminium product surface treatment process reached into punching press aluminium true qualities anodic process effect, to realize that product both had
There is metallic luster sense to have the current die casting aluminium anode processing technique of stronger sand sense texture still immature again.
Invention content
The object of the present invention is to provide a kind of lacquer spraying techniques substituting die casting aluminium surface anode effect, to solve the prior art
Die casting aluminium surface anode treatment process color single the problem of cannot be satisfied product colour requirement.
The present invention is achieved by the following technical solutions：
A kind of lacquer spraying technique substituting die casting aluminium surface anode effect, includes the following steps：
1) aluminum products for completing die casting carry out first time blasting treatment after polishing treatment；
2) aluminum products after first time blasting treatment are subjected to surface and ooze nickel and the surfaces nitrided aluminium layer processing of formation；
3) step 3) treated aluminum products are being passed through into oil removing and washing step；
4) second of blasting treatment is carried out；
5) after secondary blasting treatment aluminum products spray-applied primer and specific finishing coat.
The first time blasting treatment and second of blasting treatment are ceramic abrasion blasting；In first time blasting treatment
Afterwards, the control of aluminum products surface roughness is at 40-60 μm.
Second of blasting treatment time is less than blasting treatment time first time.
The die casting aluminium piece surface oozes nickel and the preparation method of the surfaces nitrided aluminium layer of formation,
It is embedded in by nickel oxide and carbon mix by the die casting aluminium part sealing of hole after processing, and by the die casting aluminium part after sealing of hole
In, it is heated to 350 DEG C -380 DEG C under 0.3-1MPa nitrogen atmospheres, and keep the temperature 0.5-2 hours, is then down to room temperature；
The mass ratio of the nickel oxide and the carbon is 1：10-1：5.
The degreaser of the oil removing process is organic degreaser and alkaline salt solution, caustic alkali degreasing fluid or basic salt oil removing
Liquid.
The priming paint is two layers, respectively black primer and grey color bottom paint；The black primer and the aluminum products surface
It is adjacent.
The finishing coat is aluminium paint.
The beneficial effects of the invention are as follows：
The technical program after first time blasting treatment first by carrying out oozing nickel and aln layer processing, to improve aluminum products
Corrosion resistance, then by the priming paint of two layers different colours and finishing coat processing after, punching press aluminium can be formed in die casting aluminium surface
Surface true qualities anodic process effect.
Specific implementation mode
Carry out the technical solution that the present invention will be described in detail by the following examples, embodiment below is merely exemplary, only
It can be used for explanation and illustration technical scheme of the present invention, and be not to be construed as the limitation to technical solution of the present invention.
The application provides a kind of lacquer spraying technique substituting die casting aluminium surface anode effect, includes the following steps：
1) aluminum products for completing die casting carry out first time blasting treatment after polishing treatment；First time blasting treatment
It is handled using ceramic abrasion blasting, processing time is 10-30 minutes.In this application, the ceramic abrasion blasting treatment technology used, and by aluminium
Product surface roughness is controlled at 40-60 μm.In the technical scheme, it is the application without using the reason of other sandblast technologies
The ceramics used are aluminium oxide ceramics, because of the effect of pressure, can lead to the members such as silicon, iron to prevent in carrying out sandblasting procedures
The infiltration of element, and the last treatment effect to aluminum products surface is influenced, especially influence the combination of nickel coating and aluminum products surface
Power.
2) aluminum products after first time blasting treatment are subjected to surface and ooze nickel and the surfaces nitrided aluminium layer processing of formation；
In, it is heated to 350 DEG C -380 DEG C under 0.3-1MPa nitrogen atmospheres, and keep the temperature 0.5-2 hours, is then down to room temperature；
The mass ratio of nickel oxide and carbon is 1：10-1：5.
In this process, nickel oxide can be decomposed into nitrogen and metallic nickel at 350 DEG C -380 DEG C, at this temperature, with aluminum
The metallic nickel of product surface contact can penetrate into the surface of aluminum products, and at this temperature, carbon does not penetrate into aluminum products surface will not
It reacts with the aluminium on aluminum products surface and generates aluminium carbide and influence postorder processing.By treated, aluminum products surface is passed through herein
Electron microscope observation and spectrum analysis do not obtain penetrating into forming for aluminum products surface and aluminium carbide by carbon.
By the nickel that oozes on aluminum products surface, the hole on aluminum products surface is closed first, the entrance of air is prevented, avoids
On the other hand contact with oxygen oozes nickel layer and the conjugation on aluminum products surface is high, can avoid using electronickelling process
In, because electroplating time is short, nickel layer coverage speed is fast and causes the hole on aluminum products surface to be covered by nickel coating rather than inserts,
I.e. during the nickel coating of the prior art, the hole on aluminum products surface is not to be padded, and be only covering, in this way, in aluminium
Hole of the product surface after nickel plating is still existing, also, the hole has the presence of the hydrone in electroplate liquid a bit, this
Sample forms chemical cell at the hole, and influences the corrosion resistance of aluminum products.
The technical program is by infiltration technology, before carrying out nickel coating, by way of infiltration so that nickel can penetrate into
Into the gap of aluminum products, the hole of aluminum products has been filled up, zinc layers has been covered even this is also the prior art simultaneously and also can't resolve
The pore problem on aluminum products surface, meanwhile, it need not also use the technology for covering this sacrificial layer of zinc layers.
3) step 3) treated aluminum products are being passed through into oil removing and washing step；The degreaser of oil removing process is organic removes
Finish and alkaline salt solution, caustic alkali degreasing fluid or basic salt degreasing fluid.
Which kind of specifically used degreaser is determined according to the greasy dirt situation on aluminum products surface.
4) second of blasting treatment is carried out, this blasting treatment is also that ceramic abrasion blasting is handled, and processing time is 5-10 minutes.
5) after secondary blasting treatment aluminum products spray-applied primer and specific finishing coat, in the application, using second
The purpose of blasting treatment is to improve the binding force of priming paint and aluminum products surface, is fallen off with preventing priming paint.
Priming paint is two layers, respectively black primer and grey color bottom paint；Black primer is adjacent with aluminum products surface.Finishing coat is thin
The aluminium paint of grain size, grain size is between 30-100nm.In this way after three spray paintings processing, product adhesive force and wear-resisting property
Anode surface performance can be met or exceeded.
In present embodiments, difference is only the technological parameter difference oozed nickel and form surfaces nitrided aluminium layer processing,
Therefore, in the following embodiment of the application, only these distinguishing features are illustrated respectively.
Embodiment 1
Nickel and the preparation method of the surfaces nitrided aluminium layer of formation are oozed in surface,
It is embedded in by nickel oxide and carbon mix by the aluminum products sealing of hole after processing, and by the aluminum products after sealing of hole,
It is heated to 350 DEG C under 0.3MPa nitrogen atmospheres, and keeps the temperature 0.5 hour, is then down to room temperature；
The mass ratio of nickel oxide and carbon is 1：5.
Embodiment 2
Nickel and the preparation method of the surfaces nitrided aluminium layer of formation are oozed in surface,
It is embedded in by nickel oxide and carbon mix by the aluminum products sealing of hole after processing, and by the aluminum products after sealing of hole,
It is heated to 380 DEG C under 1MPa nitrogen atmospheres, and keeps the temperature 2 hours, is then down to room temperature；
The mass ratio of nickel oxide and carbon is 1：10.
Embodiment 3
Nickel and the preparation method of the surfaces nitrided aluminium layer of formation are oozed in surface,
It is embedded in by nickel oxide and carbon mix by the aluminum products sealing of hole after processing, and by the aluminum products after sealing of hole,
It is heated to 360 DEG C under 0.5MPa nitrogen atmospheres, and keeps the temperature 1 hour, is then down to room temperature；
The mass ratio of nickel oxide and carbon is 1：8.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And deformation, the scope of the present invention are extremely equally limited by appended claims.
Claims (7)
1. a kind of lacquer spraying technique substituting die casting aluminium surface anode effect, which is characterized in that include the following steps：
1) aluminum products for completing die casting carry out first time blasting treatment after polishing treatment；
2) aluminum products after first time blasting treatment are subjected to surface and ooze nickel and the surfaces nitrided aluminium layer processing of formation；
3) step 3) treated aluminum products are being passed through into oil removing and washing step；
4) second of blasting treatment is carried out；
5) after secondary blasting treatment aluminum products spray-applied primer and specific finishing coat.
2. the lacquer spraying technique according to claim 1 for substituting die casting aluminium surface anode effect, which is characterized in that described first
Secondary blasting treatment and second of blasting treatment are ceramic abrasion blasting；After first time blasting treatment, aluminum products rough surface
Degree control is at 40-60 μm.
3. the lacquer spraying technique according to claim 2 for substituting die casting aluminium surface anode effect, which is characterized in that described second
The secondary blasting treatment time is less than blasting treatment time first time.
4. the lacquer spraying technique according to claim 1 for substituting die casting aluminium surface anode effect, which is characterized in that the die casting
Aluminium piece surface oozes nickel and the preparation method of the surfaces nitrided aluminium layer of formation,
It is embedded in by nickel oxide and carbon mix by the die casting aluminium part sealing of hole after processing, and by the die casting aluminium part after sealing of hole,
It is heated to 350 DEG C -380 DEG C under 0.3-1MPa nitrogen atmospheres, and keeps the temperature 0.5-2 hours, is then down to room temperature；
The mass ratio of the nickel oxide and the carbon is 1：10-1：5.
5. the lacquer spraying technique according to claim 1 for substituting die casting aluminium surface anode effect, which is characterized in that the oil removing
The degreaser of process is organic degreaser and alkaline salt solution, caustic alkali degreasing fluid or basic salt degreasing fluid.
6. the lacquer spraying technique according to claim 1 for substituting die casting aluminium surface anode effect, which is characterized in that the priming paint
It is two layers, respectively black primer and grey color bottom paint；The black primer is adjacent with the aluminum products surface.
7. the lacquer spraying technique according to claim 1 for substituting die casting aluminium surface anode effect, which is characterized in that the finishing coat
For aluminium paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365259.4A CN108568395B (en) | 2018-04-19 | 2018-04-19 | Paint spraying process for replacing die-casting aluminum surface anode effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810365259.4A CN108568395B (en) | 2018-04-19 | 2018-04-19 | Paint spraying process for replacing die-casting aluminum surface anode effect |
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| Publication Number | Publication Date |
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| CN108568395A true CN108568395A (en) | 2018-09-25 |
| CN108568395B CN108568395B (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810365259.4A Active CN108568395B (en) | 2018-04-19 | 2018-04-19 | Paint spraying process for replacing die-casting aluminum surface anode effect |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE651940A (en) * | 1963-08-19 | 1964-12-16 | ||
| CN1780930A (en) * | 2003-02-27 | 2006-05-31 | 吉野哈德株式会社 | Iron-based parts and method for manufacture thereof |
| CN101233256A (en) * | 2005-08-02 | 2008-07-30 | 本田技研工业株式会社 | Layered fe-based alloy and process for production thereof |
| JP4598499B2 (en) * | 2004-11-30 | 2010-12-15 | トーカロ株式会社 | Manufacturing method of composite layer covering member |
-
2018
- 2018-04-19 CN CN201810365259.4A patent/CN108568395B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE651940A (en) * | 1963-08-19 | 1964-12-16 | ||
| CN1780930A (en) * | 2003-02-27 | 2006-05-31 | 吉野哈德株式会社 | Iron-based parts and method for manufacture thereof |
| JP4598499B2 (en) * | 2004-11-30 | 2010-12-15 | トーカロ株式会社 | Manufacturing method of composite layer covering member |
| CN101233256A (en) * | 2005-08-02 | 2008-07-30 | 本田技研工业株式会社 | Layered fe-based alloy and process for production thereof |
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| Publication number | Publication date |
|---|---|
| CN108568395B (en) | 2021-01-12 |
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Address after: 219 Huiquan Road, Fenghua District, Ningbo City, Zhejiang Province Patentee after: Ningbo Shenxin Technology Co.,Ltd. Address before: 219 Huiquan Road, Fenghua District, Ningbo City, Zhejiang Province Patentee before: NINGBO SHENXIN ELECTRONICS Co.,Ltd. |
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