CN105506727B - A kind of preparation method of aluminium alloy and plastic compound - Google Patents
A kind of preparation method of aluminium alloy and plastic compound Download PDFInfo
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- CN105506727B CN105506727B CN201510930115.5A CN201510930115A CN105506727B CN 105506727 B CN105506727 B CN 105506727B CN 201510930115 A CN201510930115 A CN 201510930115A CN 105506727 B CN105506727 B CN 105506727B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/04—Etching of light metals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/32—Alkaline compositions
- C23F1/36—Alkaline compositions for etching aluminium or alloys thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
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Abstract
The invention discloses the preparation methods of a kind of aluminium alloy and plastic compound, comprising the following steps: S1, puts Al-alloy parts into and carries out electrochemical etch process in electrochemical reaction slot, will form the Al of one layer of nanoporous on Al-alloy parts surface2O3Film layer；S2, the Al-alloy parts after electrochemical treatments are subjected to first time immersion in sodium carbonate, sodium acetate, sodium phosphate or the sodium oxalate solution that concentration is 1%-5%, water washes off the soaking solution on Al-alloy parts after immersion；S3, Al-alloy parts are subjected to second of immersion in sodium carbonate, sodium acetate, sodium phosphate or the sodium oxalate solution that concentration is 6-10%, water washes off the soaking solution on Al-alloy parts after immersion；S4, it the Al-alloy parts handled well is put into mold is integrally formed with plastics.
Description
Technical field
The present invention relates to the preparation methods of a kind of aluminium alloy and plastic compound.
Background technique
With the development of science and technology with the innovation of material, aluminum alloy material is easy to process with its density is small and good heat conductivity
With the advantages such as surface treatment in automobile, household electrical appliances, consumer electronics, the industries such as aerospace and building obtain increasingly extensive application.
More and more attention has been paid to mitigate self weight, reduce oil consumption, aluminium is used as structural member on aircraft, automobile for especially current environmental protection
It is widely applied.In consumer electronics field, aluminium is steady generous with its, and higher intensity is made on mobile phone, laptop
It is a kind of selection well for shell use.Apple series product grows tender of always the use of Al-alloy casing, even one to lean on
The Samsung of heavy plastics shell does not keep out this burst of trend yet, it is contemplated that the delivery of Samsung metal chassis smart phone in 2015 and 2016
Amount will respectively reach 100,000,000 and 1.7 hundred million, and permeability is respectively 30% and 45%.
From the development trend of current consumer electronics, the primary approach of appearance innovation is the metallization of casing, consumer
There is rigid demand with texture for beautiful.From the point of view of material, there are to a certain degree to radio signal for metal chassis
Shielding.From the point of view of processing angle, metal shell molding is more much more difficult than plastic cement, to use a large amount of CNC board, warp
The grooving, punching press, cutting process for crossing complexity could complete.Especially Complex Product Structure, processing cost is very high, and time-consuming
It is very long.The characteristics of this just needs metal to be used in combination with plastic cement, has both been utilized the good mechanical strength of metal, good heat dissipation, and tie
Plastic cement is closed without radio frequency signal shield, the advantage of labyrinth easy to form reduces the production cost of product on the whole.
It is to process drawing plastic structure in advance directly on the metalwork in conjunction with plastic cement, be allowed to that plastic-aluminum, which draws plastic structure method,
When subsequent inserts is injection moulded, plastic cement can imbed metal and draw in plastic structure, increase the two binding force, which is suitable for product structure
It is used when intensity requirement is not high.Welding is to use hot-air, ultrasonic wave, high frequency, and the modes such as infrared or laser heat reserved plastic cement
Face or riveting column, melt plastic cement, then compress the method realized and connected between plastic-metal.Laser irradiation (DLAMP) is using company
Continuous wave laser irradiation, processes wiring pattern in metal surface, forms similar resin suture texture after injection moulding, reinforces metal
The method of binding force between plastic cement.Gluing method is the direct coating glue of component area connected in needs, metal and modeling
The method that glue connection is connected together.Industrially application time is longer for above method, and technique is more mature, but exists in various degree
Disadvantage such as draws plastic structure method binding force weaker, and welding is more demanding to operator, and laser irradiation equipment investment is big, glue
Glutinous method requires bonded areas structure simple.Compared to these methods, the nanometer method of forming is using chemical/electrochemical method in metal watch
Face forms numerous micro-nano holes, and when injection moulding, metal and plastic cement are anchored together.
Summary of the invention
It is a primary object of the present invention to overcome the deficiencies of the prior art and provide the system of a kind of aluminium alloy and plastic compound
Preparation Method realizes the high-strength combination of aluminium alloy and engineering plastics.
To achieve the above object, the invention adopts the following technical scheme:
A kind of preparation method of aluminium alloy and plastic compound, comprising the following steps:
S1, it Al-alloy parts is put into carries out electrochemical etch process in electrochemical reaction slot, on Al-alloy parts surface by shape
At the Al of one layer of nanoporous2O3Film layer；
S2, by the Al-alloy parts after electrochemical treatments mass percent concentration be 1%-5% sodium carbonate, acetic acid
First time immersion is carried out in sodium, sodium phosphate or sodium oxalate solution, water washes off the soaking solution on Al-alloy parts after immersion；
It S3, by Al-alloy parts in mass percent concentration is that the sodium carbonate of 6-10%, sodium acetate, sodium phosphate or sodium oxalate are molten
It carries out impregnating for second in liquid, water washes off the soaking solution on Al-alloy parts after immersion；
S4, it the Al-alloy parts handled well is put into mold is integrally formed with plastics.
Further:
Soaking solution used by impregnating and impregnating for the first time for second is selected from following combination:
The sodium carbonate liquor using 1% is impregnated for the first time, and second of immersion uses 6% sodium carbonate liquor；
The sodium radio-phosphate,P-32 solution using 1.5% is impregnated for the first time, and second of immersion uses 8% sodium radio-phosphate,P-32 solution；
The sodium acetate solution using 3% is impregnated for the first time, and second of immersion uses 6% sodium acetate solution；
The sodium radio-phosphate,P-32 solution using 4.5% is impregnated for the first time, and second of immersion uses 6.5% sodium radio-phosphate,P-32 solution；
The sodium radio-phosphate,P-32 solution using 5% is impregnated for the first time, and second of immersion uses 8% sodium acetate solution.
In step S1, electrochemical etch process use comprising NaCl, KCl, NaBr, NaI, KBr, KI, Na2SO4, NaNO3,
K2SO4, KNO3 any one or more of chemical etching solution.
The concentration of the chemical etching solution is 100-200g/L.
In step S1, using Al-alloy parts as anode, using stereotype as cathode, the voltage for being applied to anode is 10-40V,
The temperature of electrochemical treatments is 5-25 DEG C, and the processing time is 3-5min.
Step S1 obtains Al2O3Film layer with a thickness of 4-15 μm, nano aperture 10-40nm.
It is further comprising the steps of before step S1:
S0, Al alloy parts are placed on to oil removing in weakly alkaline degreasing agent, pH value is maintained at 9-11, soaking time 1-
10min, temperature are 30-60 DEG C, then the washing removal remaining degreasing agent of Al alloy parts surface；Place into NaOH solution
Middle immersion removes the oxide layer of aluminum alloy surface self-assembling formation, and wherein the concentration of NaOH solution is 10-50g/L, temperature 20-
60℃；Then washing removal Al alloy parts NaOH solution remained on surface.
In step S0, one kind is impregnated, washes and then is put into without chromic acid Al alloy parts are put into NaOH solution
With nitric acid go out photo etching in go out light, out the pH value of photo etching be maintained at 2-3, out when light between be 1-5mins, then washing removal aluminium
Alloy workpiece photo etching out remained on surface.
The plastics are PPS, PBT or PA.
In step S4, the mold temperature of injection molding is 140-160 DEG C.
Beneficial effects of the present invention:
According to the method for the present invention, to the Al for forming one layer of nanoporous through electrochemical etch process2O3The aluminium alloy of film layer
Workpiece is successively put into sodium carbonate, sodium acetate, sodium phosphate or the sodium oxalate solution of various concentration, is impregnated in two times.It uses for the first time
The alkali of lower 1%-5% concentration impregnates, and the electrolyte dilution in micropore is gone out, and this weakly alkaline solution stays in micropore
Interior, which further corrodes nano-pore down, so that nanometer hole depth is deeper, since the weakly alkaline solution is rotten
Corrosion is weaker, will not destroying pores structure.Second of the alkali with relatively high 6-10% concentration impregnates, which is receiving
Different degrees of concaveconvex structure is further corroded out on metre hole inner wall, the structure after this corrosion can be reinforced from microstructure
It is acted on the mechanical snap of plastic cement.Immersion treatment is established on the basic pattern of the nano-pore formed and the basis of structure twice
On, nano-pore is further modified, to effectively strengthen the combination of nano-pore and plastic cement.It is sent out through many experiments
Existing, the superpower combination of Al-alloy parts and engineering plastics may be implemented in the present invention, for example, with the bond strength of PPS up to 40Mpa,
Bond strength with PBT is up to 32MPa.
The present invention has been obviously improved Al alloy parts and plastics binding force, and its processing cost is low, can meet production well
The function and appearance requirement of product realize product lightweight, simplify product structure, have a good application prospect.
Detailed description of the invention
Fig. 1 is that the electron microscope of the Al alloy parts nano surface micropore distribution obtained by an example of the invention is shot
Figure.
Specific embodiment
It elaborates below to embodiments of the present invention.It is emphasized that following the description is only exemplary,
The range and its application being not intended to be limiting of the invention.
Refering to fig. 1, in one embodiment, the preparation method of a kind of aluminium alloy and plastic compound, comprising the following steps:
S1, it Al-alloy parts is put into carries out electrochemical etch process in electrochemical reaction slot, on Al-alloy parts surface by shape
At the Al of one layer of nanoporous2O3Film layer；
S2, by the Al-alloy parts after electrochemical treatments mass percent concentration be 1%-5% sodium carbonate, acetic acid
First time immersion is carried out in sodium, sodium phosphate or sodium oxalate solution, water washes off the soaking solution on Al-alloy parts after immersion；
It S3, by Al-alloy parts in mass percent concentration is that the sodium carbonate of 6-10%, sodium acetate, sodium phosphate or sodium oxalate are molten
It carries out impregnating for second in liquid, water washes off the soaking solution on Al-alloy parts after immersion；
S4, it the Al-alloy parts handled well is put into mold is integrally formed with plastics.
In an advantageous embodiment, the sodium carbonate liquor using 1% is impregnated for the first time, and is impregnated for second and used 6%
Sodium carbonate liquor.
In another preferred embodiment, the sodium radio-phosphate,P-32 solution using 1.5% is impregnated for the first time, and impregnate for second and use
8% sodium radio-phosphate,P-32 solution；
In another preferred embodiment, the sodium acetate solution using 3% is impregnated for the first time, and impregnate for second and use
6% sodium acetate solution；
In another preferred embodiment, the sodium radio-phosphate,P-32 solution using 4.5% is impregnated for the first time, and impregnate for second and use
6.5% sodium radio-phosphate,P-32 solution；
In another preferred embodiment, the sodium radio-phosphate,P-32 solution using 5% is impregnated for the first time, and impregnate for second and use
8% sodium acetate solution.
In an advantageous embodiment, in step S1, electrochemical etch process use comprising NaCl, KCl, NaBr, NaI,
KBr, KI, Na2SO4, NaNO3, K2SO4, KNO3 any one or more of chemical etching solution.
In a more preferred embodiment, the concentration of the chemical etching solution is 100-200g/L.
In an advantageous embodiment, it in step S1, using Al-alloy parts as anode, using stereotype as cathode, is applied to
The voltage of anode is 10-40V, and the temperature of electrochemical treatments is 5-25 DEG C, and the processing time is 3-5min.
In an advantageous embodiment, step S1 obtains Al2O3Film layer with a thickness of 4-15 μm, nano aperture 10-
40nm。
In an advantageous embodiment, further comprising the steps of before step S1:
S0, Al alloy parts are placed on to oil removing in weakly alkaline degreasing agent, pH value is maintained at 9-11, soaking time 1-
10min, temperature are 30-60 DEG C, then the washing removal remaining degreasing agent of Al alloy parts surface；Place into NaOH solution
Middle immersion removes the oxide layer of aluminum alloy surface self-assembling formation, and wherein the concentration of NaOH solution is 10-50g/L, temperature 20-
60℃；Then washing removal Al alloy parts NaOH solution remained on surface.
In a more preferred embodiment, it in step S0, impregnates Al alloy parts are put into NaOH solution, wash it
Afterwards, place into a kind of going out without chromic acid and nitric acid and go out light in photo etching, the pH value of photo etching is to be maintained at 2-3 out, out when light between be
1-5mins, then washing removes Al alloy parts photo etching out remained on surface.
According to a kind of specific embodiment, firstly, Al alloy parts are placed on oil removing in weakly alkaline degreasing agent, pH value is kept
In 9-11, soaking time 1-10min, temperature is 30-60 DEG C, and then washing removes degreasing agent remained on surface；It places into
It is impregnated in NaOH solution, removes the oxide layer of aluminum alloy surface self-assembling formation, wherein the concentration of NaOH solution is 10-50g/L, temperature
Degree is 20-60 DEG C；It is equally washed, a kind of going out without chromic acid and nitric acid is placed into after washing and goes out light in photo etching, out photo etching
PH value be maintained at 2-3, out when light between be 1-5mins, then wash.
The workpiece of complete light out is put into electrochemical reaction slot, electrolyte be it is a kind of comprising NaCl, KCl, NaBr, NaI,
KBr, KI, Na2SO4, NaNO3, K2SO4, KNO3 any one or more of combined neutral solution, concentration 100-
200g/L, workpiece is as anode, and stereotype is as cathode, and the voltage for being applied to anode is 10-40V, and the processing time is 3-5mins,
The temperature of electrochemical treatments is 5-25 DEG C.Processing is adequately washed after completing.
After the completion of processing, aluminum alloy surface will form the Al2O3 film layer of one layer of nanoporous, and thicknesses of layers is up to 4-15 μ
M, nano aperture 10-40nm.
Workpiece after electrochemical treatments is immersed in again in a kind of inorganic alkali solution of various concentration, is impregnated in two times, often
It is all adequately washed after primary immersion.Inorganic alkali solution can be sodium carbonate, sodium acetate, sodium phosphate or sodium oxalate.First
Secondary concentration is 1%-5%, and second of concentration is 6-10%.
The sample handled well is put into mold and is integrally formed with engineering plastics.Engineering plastics are preferably PPS, PBT
Or PA.The mold temperature of injection molding is preferably 140-160 DEG C.
It is further described below by way of several preferred examples.
Example 1:
6063 Al alloy parts are cleaned into 1min in the alkalescent degreasing powder that pH value is 9,30g/L are placed on after washing, temperature
Degree is washed to impregnate 1min in 30 DEG C of NaOH solution, is 2 in pH value, impregnates 1min, water in the light-emitting solution that temperature is 30 DEG C
It washes, electrochemical treatments is carried out in the electrolyte that concentration is 100g/L, application voltage is 20V, handles the time and temperature is respectively
3mins and 10 DEG C.It is washed after the completion of processing, being separately immersed in concentration in two times is 1% sodium carbonate liquor and 6% sodium carbonate
In solution, it is put into mold together with PPS after finally washing drying and carries out injection molding.Finally, the stripping of the PPS and plastic cement that measure
From intensity up to 40Mpa.
Fig. 1 is the photo that the amplification factor of example 1 shot with scanning electron microscope is 10W times, four nano-scales
The distribution in the aperture of the nano aperture illustrated respectively, the nano aperture handled are distributed in 10nm between 20nm, and effect is aobvious
It writes.
Example 2:
7003 Al alloy parts are cleaned into 1.5min in the alkalescent degreasing powder that pH value is 10, are placed on 45g/L after washing,
1.5min is impregnated in the NaOH solution that temperature is 40 DEG C, is washed, is 2 in pH value, is impregnated in the light-emitting solution that temperature is 45 DEG C
1.5min, washing carry out electrochemical treatments in the electrolyte that concentration is 150g/L, and application voltage is 22V, handle time and temperature
Degree is respectively 5mins and 15 DEG C.Processing after the completion of wash, be separately immersed in two times concentration be 1.5% sodium radio-phosphate,P-32 solution and
In 8% sodium radio-phosphate,P-32 solution, it is put into mold together with PBT after finally washing drying and carries out injection molding.Finally, measure
The peel strength of PBT and plastic cement is 32Mpa.
Example 3:
7075 Al alloy parts are cleaned into 3min in the alkalescent degreasing powder that pH value is 11,45g/L are placed on after washing, temperature
Degree is washed to impregnate 3min in 40 DEG C of NaOH solution, is 2 in pH value, impregnates 3min, water in the light-emitting solution that temperature is 45 DEG C
It washes, electrochemical treatments is carried out in the electrolyte that concentration is 200g/L, application voltage is 25V, handles the time and temperature is respectively
5mins and 20 DEG C.It is washed after the completion of processing, being separately immersed in concentration in two times is 3% sodium acetate solution and 6% sodium acetate
In solution, it is put into mold together with PBT after finally washing drying and carries out injection molding.Finally, the stripping of the PBT and plastic cement that measure
It is 34Mpa from intensity.
Example 4:
6063 Al alloy parts are cleaned into 3min in the alkalescent degreasing powder that pH value is 11,45g/L are placed on after washing, temperature
Degree is washed to impregnate 3min in 40 DEG C of NaOH solution, is 2 in pH value, impregnates 3min, water in the light-emitting solution that temperature is 45 DEG C
It washes, electrochemical treatments is carried out in the electrolyte that concentration is 200g/L, application voltage is 25V, handles the time and temperature is respectively
5mins and 20 DEG C.It is washed after the completion of processing, being separately immersed in concentration in two times is 4.5% sodium radio-phosphate,P-32 solution and 6.5% phosphorus
In acid sodium solution, it is put into mold together with PPS after finally washing drying and carries out injection molding.Finally, the PPS and plastic cement that measure
Peel strength be 39Mpa.
Example 5:
6063 Al alloy parts are cleaned into 3min in the alkalescent degreasing powder that pH value is 11,45g/L are placed on after washing, temperature
Degree is washed to impregnate 3min in 40 DEG C of NaOH solution, is 2 in pH value, impregnates 3min, water in the light-emitting solution that temperature is 45 DEG C
It washes, electrochemical treatments is carried out in the electrolyte that concentration is 200g/L, application voltage is 25V, handles the time and temperature is respectively
5mins and 20 DEG C.It is washed after the completion of processing, being separately immersed in concentration in two times is 5% sodium radio-phosphate,P-32 solution and 8% sodium acetate
In solution, it is put into mold together with PPS after finally washing drying and carries out injection molding.Finally, the stripping of the PPS and plastic cement that measure
It is 42Mpa from intensity.
The above content is combine it is specific/further detailed description of the invention for preferred embodiment, cannot recognize
Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, some replacements or modifications can also be made to the embodiment that these have been described,
And these substitutions or variant all shall be regarded as belonging to protection scope of the present invention.
Claims (10)
1. the preparation method of a kind of aluminium alloy and plastic compound, which comprises the following steps:
S1, it Al-alloy parts is put into carries out electrochemical etch process in electrochemical reaction slot, one will be formed on Al-alloy parts surface
The Al of layer nanoporous2O3Film layer；
S2, by the Al-alloy parts after electrochemical treatments mass percent concentration be the sodium carbonate of 1%-5%, sodium acetate,
First time immersion is carried out in sodium phosphate or sodium oxalate solution, water washes off the soaking solution on Al-alloy parts after immersion；
It S3, by Al-alloy parts in mass percent concentration is in the sodium carbonate of 6-10%, sodium acetate, sodium phosphate or sodium oxalate solution
It carries out second to impregnate, water washes off the soaking solution on Al-alloy parts after immersion；
S4, it the Al-alloy parts handled well is put into mold is integrally formed with plastics；
Soaking solution when impregnating for the first time is by Al2O3The nano-pore of film layer further corrodes down so that nanometer hole depth it is deeper but
Will not destroying pores structure；Soaking solution when second of immersion is further rotten on the nano-pore inner wall with deeper hole depth
Lose concaveconvex structure different degrees of out.
2. the preparation method of aluminium alloy as described in claim 1 and plastic compound, which is characterized in that impregnate for the first time and the
Soaking solution used by secondary immersion is selected from following combination:
The sodium carbonate liquor using 1% is impregnated for the first time, and second of immersion uses 6% sodium carbonate liquor；
The sodium radio-phosphate,P-32 solution using 1.5% is impregnated for the first time, and second of immersion uses 8% sodium radio-phosphate,P-32 solution；
The sodium acetate solution using 3% is impregnated for the first time, and second of immersion uses 6% sodium acetate solution；
The sodium radio-phosphate,P-32 solution using 4.5% is impregnated for the first time, and second of immersion uses 6.5% sodium radio-phosphate,P-32 solution；
The sodium radio-phosphate,P-32 solution using 5% is impregnated for the first time, and second of immersion uses 8% sodium acetate solution.
3. the preparation method of aluminium alloy as claimed in claim 1 or 2 and plastic compound, which is characterized in that in step S1, electricity
Chemical etching processing, which uses, includes any in NaCl, KCl, NaBr, NaI, KBr, KI, Na2SO4, NaNO3, K2SO4, KNO3
Kind or a variety of chemical etching solution.
4. the preparation method of aluminium alloy as claimed in claim 3 and plastic compound, which is characterized in that the chemical etching
The concentration of solution is 100-200g/L.
5. the preparation method of aluminium alloy as claimed in claim 1 or 2 and plastic compound, which is characterized in that in step S1, with
Al-alloy parts are as anode, and using stereotype as cathode, the voltage for being applied to anode is 10-40V, and the temperature of electrochemical treatments is 5-
25 DEG C, the processing time is 3-5min.
6. the preparation method of aluminium alloy as described in claim 1 and plastic compound, which is characterized in that step S1 obtains Al2O3
Film layer with a thickness of 4-15 μm, nano aperture 10-40nm.
7. the preparation method of aluminium alloy as claimed in claim 1 or 2 and plastic compound further includes following before step S1
Step:
S0, Al alloy parts being placed on to oil removing in weakly alkaline degreasing agent, pH value is maintained at 9-11, soaking time 1-10min,
Temperature is 30-60 DEG C, then the washing removal remaining degreasing agent of Al alloy parts surface；It places into NaOH solution and soaks
Bubble removes the oxide layer of aluminum alloy surface self-assembling formation, and wherein the concentration of NaOH solution is 10-50g/L, and temperature is 20-60 DEG C；
Then washing removal Al alloy parts NaOH solution remained on surface.
8. the preparation method of aluminium alloy as claimed in claim 7 and plastic compound, which is characterized in that in step S0, inciting somebody to action
Al alloy parts, which are put into NaOH solution, to be impregnated, wash and then is put into a kind of going out without chromic acid and nitric acid and go out light in photo etching,
Out the pH value of photo etching be maintained at 2-3, out when light between be 1-5min, then washing removal Al alloy parts it is remained on surface go out light
Agent.
9. the preparation method of aluminium alloy as claimed in claim 1 or 2 and plastic compound, which is characterized in that the plastics are
PPS, PBT or PA.
10. the preparation method of aluminium alloy as claimed in claim 1 or 2 and plastic compound, which is characterized in that in step S4,
The mold temperature of injection molding is 140-160 DEG C.
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| CN106694674A (en) * | 2016-12-21 | 2017-05-24 | 常熟高嘉能源科技有限公司 | Cold-drawing forming method for aluminium case of power battery |
| CN107338431A (en) * | 2016-12-27 | 2017-11-10 | 深圳市新合富力科技有限公司 | Sour table adjustment and preparation method thereof and application method are hidden in the injection of aluminium alloy nanometer |
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| CN111549348B (en) * | 2020-05-15 | 2022-04-12 | 计锋 | Metal part surface treatment method and metal part plastic complex |
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| EP1688683A1 (en) * | 2005-01-06 | 2006-08-09 | Fenis Teknik Ürünler A.S. | Light weight high effeciency collector made of aluminum foil having selective surface |
| CN102229266A (en) * | 2010-06-10 | 2011-11-02 | 鸿富锦精密工业（深圳）有限公司 | Compound of aluminum or aluminum alloy and plastics and manufacturing method thereof |
| CN103129048B (en) * | 2011-12-02 | 2015-07-29 | 鸿富锦精密工业（深圳）有限公司 | The preparation method of the complex of metal and plastics and complex |
| TW201431676A (en) * | 2013-02-05 | 2014-08-16 | Univ Nat Taipei Technology | Method for bonding aluminum matrix with plastic |
| CN104309054B (en) * | 2013-10-31 | 2017-04-12 | 比亚迪股份有限公司 | Preparation method of metal-resin composite, and metal-resin composite |
| CN103993340B (en) * | 2014-05-20 | 2017-05-17 | 广东长盈精密技术有限公司 | Metal sheet as well as metal resin composite and preparation method thereof |
| CN104593784A (en) * | 2014-12-30 | 2015-05-06 | 罗珊珊 | Aluminum product/plastic-combined aluminum product surface treatment technique |
| CN104962972A (en) * | 2015-07-22 | 2015-10-07 | 苏州道蒙恩电子科技有限公司 | Production method of combination of aluminium alloy and resin |
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