CN107502899A - Whiten the pre-treating method of cleaning mixture and application thereof and aluminium alloy - Google Patents
Whiten the pre-treating method of cleaning mixture and application thereof and aluminium alloy Download PDFInfo
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- CN107502899A CN107502899A CN201710784281.8A CN201710784281A CN107502899A CN 107502899 A CN107502899 A CN 107502899A CN 201710784281 A CN201710784281 A CN 201710784281A CN 107502899 A CN107502899 A CN 107502899A
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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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
Abstract
The present invention relates to technical field of aluminum alloy surface treatment, and in particular to one kind whitens cleaning mixture, and by weight, it includes：1~50 part of 1~100 part of oxidant, 1~10 part of stabilizer, 0.1~5 part of catalyst, 1~50 part of builder and solvent, further relate to a kind of pre-treating method of aluminium alloy, comprise the following steps：Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing is put into above-mentioned whiten to carry out whitening dirty removing processing in cleaning mixture.This whitens cleaning mixture, and not only to whiten scale removal efficiency high, effect to the foreign metal of aluminum alloy surface preferable, and can avoid producing harmful vapors, effectively ensures the health of operating personnel.
Description
Technical field
The present invention relates to technical field of aluminum alloy surface treatment, and cleaning mixture and application thereof is whitened in particular to one kind
And the pre-treating method of aluminium alloy.
Background technology
Aluminium alloy is one of widest a kind of non-ferrous metal structural material in commercial Application at present.It is common, whiten and remove
Dirty process is indispensable important step in pretreatment of aluminum alloy technique.Aluminium alloy is during alkaline etching, its intermetallic
The particle of thing is generally not involved in the etch reaction of alkalescence, still remains in the surface of aluminium alloy castings, one layer of grey black of formation
Loose ash shape thing, the unconsolidated material of these grey blacks influence the progress of the techniques such as follow-up passivation, spraying, chemical plating and plating,
Therefore must go to remove.
At present, the Conventional processing methods for removing grey black unconsolidated material are mainly clear to carry out plus hydrofluoric acid using nitric acid
Wash, though this method can effectively remove surface grey black, nitrogen oxides and hydrogen fluoride gas are also easy to produce during scale removal, pollute
Environment, endanger workers ' health.
The content of the invention
First purpose of the present invention is that providing one kind whitens cleaning mixture, is whitened well with having to aluminum alloy surface
Scale removal effect, and do not produce harmful vapors.
Second object of the present invention is to provide the above-mentioned purposes for whitening cleaning mixture as aluminum alloy surface cleaning fluid, its
The surface of aluminium alloy can fast and effectively be cleaned, and not produce chemical noxious smog.
Third object of the present invention is to provide a kind of pre-treating method of aluminium alloy, can remove the miscellaneous of aluminum alloy surface
Matter metal, it is preferable not only to whiten scale removal efficiency high, effect, and can avoid producing harmful vapors, effectively ensures operation
The health of personnel.
The present invention is solved its technical problem and realized using following technical scheme.
One kind whitens cleaning mixture, by weight, including：1~100 part of oxidant, 1~10 part of stabilizer, catalyst 0.1
1~50 part of~5 parts, 1~50 part of builder and solvent.
The above-mentioned purposes for whitening cleaning mixture as aluminum alloy surface cleaning fluid.
A kind of pre-treating method of aluminium alloy, comprises the following steps：With it is above-mentioned whiten cleaning mixture to aluminium alloy for example by
Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing carries out whitening dirty removing processing.
The beneficial effect of the pre-treating method for whitening cleaning mixture and application thereof and aluminium alloy of embodiment of the present invention is：
Oxygen is carried out to impurity element such as iron, manganese, copper, silicon etc. of aluminum alloy surface by whitening oxidant in cleaning mixture and catalyst
Change, it is generated the oxide of foreign ion, reacted afterwards with builder, can so remove the miscellaneous of aluminum alloy surface
Matter, 1~100 part of simultaneous oxidation agent, 1~10 part of stabilizer, 0.1~5 part of catalyst, 1~50 part of builder and solvent 1~50
Part proportional arrangement so that can mutually be cooperateed between various composition, it is good not only to whiten scale removal efficiency high, effect, and can be with
Avoid producing harmful vapors, effectively ensure the health of operating personnel.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of embodiment of the present invention
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the Surface Characterization figure of untreated preceding aluminium alloy；
Fig. 2 is that the cleaning mixture that whitens in the embodiment of the present invention 1 to aluminum alloy surface whiten phenogram after scale removal.
Embodiment
, below will be to embodiment party of the present invention to make the purpose, technical scheme and advantage of embodiment of the present invention clearer
Technical scheme in formula is clearly and completely described.Unreceipted actual conditions person in embodiment or embodiment, according to routine
The condition that condition or manufacturer suggest is carried out.Agents useful for same or the unreceipted production firm person of instrument, being can be by commercially available purchase
Buy the conventional products of acquisition.
A kind of pre-treating method for whitening cleaning mixture and application thereof and aluminium alloy of embodiment of the present invention is entered below
Row illustrates.
One kind whitens cleaning mixture, by weight, including 1~100 part of oxidant, 1~10 part of stabilizer, catalyst 0.1
1~50 part of~5 parts, 1~50 part of builder and solvent.
By whitening oxidant in cleaning mixture and catalyst impurity element such as iron, manganese, copper, silicon etc. to aluminum alloy surface
Aoxidized, it is generated the oxide of foreign ion, reacted afterwards with builder, can so remove aluminum alloy surface
Impurity, 1~100 part of simultaneous oxidation agent, 1~10 part of stabilizer, 0.1~5 part of catalyst, 1~50 part of builder and solvent 1
~50 parts of proportional arrangement so that can mutually it be cooperateed between various composition, it is good not only to whiten scale removal efficiency high, effect, and
It can avoid producing harmful vapors, effectively ensure the health of operating personnel.
Some embodiments of the present invention, by weight, whiten cleaning mixture include 15~80 parts of oxidant, stabilizer 2~
20~50 parts of 10 parts, 0.1~3 part of catalyst, 20~50 parts of builder and solvent.
Some embodiments of the present invention, by weight, whitening cleaning mixture includes 1~50 part of oxidant, stabilizer 1~5
Part, 0.1~1 part of catalyst, 1~35 part of builder and 1~40 part of solvent.
According to some embodiments, oxidant can include at least one of persulfate and peroxide；For example,
Oxidant can include persulfate, can also include peroxide, and oxidant can also include persulfate and peroxide simultaneously
Compound.
According to some embodiments, persulfate includes at least one of potassium peroxydisulfate, ammonium persulfate, i.e. persulfate
Can be potassium peroxydisulfate or ammonium persulfate, persulfate can also include potassium peroxydisulfate and ammonium persulfate simultaneously.
According to some embodiments, preferred oxidant is included in potassium peroxydisulfate, ammonium persulfate, hydrogen peroxide, calper calcium peroxide
It is at least one；It is further preferred that the oxidant includes the potassium peroxydisulfate, the ammonium persulfate and the hydrogen peroxide；More
Preferably, the mass ratio of the potassium peroxydisulfate, the ammonium persulfate and the hydrogen peroxide is (1~2)：(1~1.5)：(1~
1.5).By above-mentioned three kinds being had the material of oxidisability according to (1~2)：(1~1.5)：The mass ratio of (1~1.5) is mixed
Close to form oxidant so that its oxidant formed there can be good oxidation susceptibility, can be to the miscellaneous of aluminum alloy surface
Matter carries out effective oxidation and peeled off, and it is fully generated the oxide of impurity, so as to reach preferably cleaning and scale removal effect.
According to some embodiments, the concentration of hydrogen peroxide is 20%~50%, further preferred 30%~50%, most preferably
30%.Hydrogen peroxide is hydrogen peroxide, and it has good oxidisability, and its oxidisability is relevant with its content, and content is excessive easily right
The surface of aluminium alloy impacts, and content is too small, cannot get optimal oxidation effectiveness.Therefore, the hydrogen peroxide of above-mentioned content is not only
Effectively the surface impurity of aluminium alloy can be aoxidized, and aluminium alloy will not be damaged, while it also can be more
Coordinative role is carried out with potassium peroxydisulfate, ammonium persulfate well, to reach best oxidation effectiveness, final improve whitens cleaning mixture pair
Aluminium alloy whitens scale removal effect.
According to some embodiments, stabilizer can include at least one of phytic acid, butyl glycol ether；Preferably, surely
Determining agent includes phytic acid, butyl glycol ether, it is highly preferred that the mass ratio of phytic acid, butyl glycol ether is (1~1.5)：(1~1.5).
By phytic acid, butyl glycol ether combine, may be such that it is solution-stabilized, so as to ensure that it is black that solution can effectively remove aluminum alloy surface
Ash.
According to some embodiments, builder can include fluoride；Preferably, fluoride includes sodium fluoride, hydrogen fluoride
At least one of ammonium and ammonium fluoride, i.e. builder both can be single hydrofluoric acid, ammonium acid fluoride or ammonium fluoride or
Two or three therein of any combination.It is highly preferred that builder includes, sodium fluoride, ammonium acid fluoride and ammonium fluoride, further
Preferably, the mass ratio of sodium fluoride, ammonium acid fluoride and ammonium fluoride is (1~1.5)：(1~1.5)：(1~2), sodium fluoride, fluorination
Hydrogen ammonium and ammonium fluoride according to aforementioned proportion be mixed to form builder can ground with oxidant coordinate and remove aluminium alloy table
The impurity elements such as the iron in face, manganese, copper, silicon.
According to some embodiments, catalyst includes at least one in ferrous sulfate, ferric sulfate, cuprous sulfate and copper sulphate
Kind；Preferably, catalyst includes ferrous sulfate, ferric sulfate, cuprous sulfate and copper sulphate, it is highly preferred that ferrous sulfate, sulfuric acid
The mass ratio of iron, cuprous sulfate and copper sulphate is (1~1.5)：(1~2)：(1~1.5)：(1~2).
According to some embodiments, solvent includes at least one of water and ethanol；Preferably, the solvent includes water and second
Alcohol, it is highly preferred that the mass ratio of water and ethanol is (3~6)：(1~1.5).By above-mentioned solvent can to oxidant, stably
Agent, catalyst and builder are dissolved, and are thoroughly mixed together various components, so as to make itself while and aluminium alloy
The grey black on surface is acted on, and is reached and is whitened scale removal effect well.
The above-mentioned cleaning mixture that whitens only need to be by above-mentioned oxidant, stabilizer, catalyst, builder in embodiments of the present invention
And solvent is mixed and can obtain.
Some embodiments of the present invention, which also provide, above-mentioned can whiten purposes of the cleaning mixture as aluminum alloy surface cleaning fluid.
Some embodiments of the present invention additionally provide a kind of pre-treating method of aluminium alloy, comprise the following steps：
Aluminium alloy is carried out to whiten dirty removing processing with the above-mentioned cleaning mixture that whitens.
According to some embodiments, aluminium alloy is the aluminium alloy after pickling processes, alkaline etching processing.According to some embodiment party
Formula, aluminium alloy are the aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing.
Some embodiments of the present invention additionally provide a kind of pre-treating method of aluminium alloy, comprise the following steps：
Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing is put into above-mentioned whiten in cleaning mixture to be washed
White dirty removing processing.
According to some embodiments, the duration for whitening dirty removing processing is 60 seconds~120 seconds；Above-mentioned processing time, make
Obtain fully can carry out cleaning and descaling to aluminum alloy surface, and further the surface of aluminium alloy will not be damaged again.It is preferred that
Ground, whiten dirty removing processing and carried out at a temperature of 20~30 DEG C., can so as to carry out whitening dirty removing processing in this temperature range
Reach more preferable reaction effect.This whitens scale remover and pre-treating method is applied to the aluminium alloy scale removal of most of model, especially
Scale removal is whitened suitable for high silicon pack alloy.
Some embodiments of the present invention additionally provide a kind of pre-treating method of aluminium alloy, and it includes：
S1, aluminium alloy is put into degreasing agent carries out ungrease treatment；
S2, the aluminium alloy after ungrease treatment is put into mordant carries out pickling processes；
S3, the aluminium alloy after overpickling is put into alkali cleaning agent to progress alkaline etching processing；
S4, the aluminium alloy after alkaline etching is handled is put into above-mentioned whiten carries out whitening dirty removing processing in cleaning mixture；
S5, the aluminium alloy after whitening dirty removing processing is carried out to the subsequent treatment such as heavy zinc, alkali nickel, copper facing, silver-plated.
According to some embodiments, ungrease treatment is carried out at a temperature of 55 DEG C~70 DEG C, and the ungrease treatment continues
Time is 5 minutes~8 minutes, is so advantageous to improve degreasing effect, the grease of aluminum alloy surface is sufficiently removed.Its
In, degreasing agent can include following each component：20-100g/L aluminium alloy weak base erosion powder, dispersant is water.
According to some embodiments, pickling processes are carried out at a temperature of room temperature, and the duration of pickling processes is 60 seconds
~120 seconds, be so advantageous to improve pickling effect.Wherein, mordant can include following each component：5-10% mixed acid is molten
Liquid, remaining component are water.
According to some embodiments, alkaline etching processing is carried out at a temperature of 50 DEG C~65 DEG C, and the alkaline etching processing continues
Time is 15~60 seconds, is so advantageous to improve alkaline etching effect.Wherein, Alkaline etchant includes 60-80g/L alkaline etching powder, remaining
Component is water.
In order to reduce the mutually caused influence of each operation in pretreatment of aluminum alloy method, so as to improve overall pre-treatment
Effect, such as whitened after ungrease treatment before pickling processes, after pickling processes before alkaline etching processing, after alkaline etching processing at scale removal
Before reason, whiten and sink after dirty removing processing after zinc before processing, heavy zinc processing before Nickel Plating Treatment, after Nickel Plating Treatment before copper facing and copper facing
Water washing operations are carried out to aluminium alloy afterwards.The mutually caused shadow of each operation in pretreatment of aluminum alloy method can so be reduced
Ring, so as to improve overall pre-treatment effect.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：1 part of oxidant, stabilizer 1
Part, 0.1 part of catalyst, 1 part of builder and 1 part of solvent.
Wherein, oxidant is potassium peroxydisulfate, and stabilizer is phytic acid, and builder is sodium fluoride, and catalyst is ferrous sulfate, molten
Agent is water.
Embodiment 2
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：100 parts of oxidant, stably
50 parts of 10 parts of agent, 5 parts of catalyst, 50 parts of builder and solvent.
Wherein, oxidant is ammonium persulfate, and stabilizer is butyl glycol ether, and catalyst is ferric sulfate, and builder is fluorination
Hydrogen ammonium, solvent are water.
Embodiment 3
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：20 parts of oxidant, stabilizer
10 parts of 2 parts, 1 part of catalyst, 10 parts of builder and solvent.
Wherein, oxidant is calper calcium peroxide, and stabilizer is phytic acid, and builder is ammonium fluoride, and catalyst is cuprous sulfate, molten
Agent is water.
Embodiment 4
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：80 parts of oxidant, stabilizer
40 parts of 8 parts, 4 parts of catalyst, 40 parts of builder and solvent.
Wherein, oxidant is hydrogen peroxide, and the concentration of hydrogen peroxide is 27.5%；Stabilizer is the mixed of phytic acid and butyl glycol ether
The mass ratio of compound, phytic acid and butyl glycol ether is 1：1.2；Catalyst is copper sulphate；Builder is sodium fluoride and ammonium acid fluoride
Mixture, the mass ratio 1.2 of sodium fluoride and ammonium acid fluoride：1；Solvent is water.
Embodiment 5
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：25 parts of oxidant, stabilizer
30 parts of 8 parts, 2 parts of catalyst, 20 parts of builder and solvent.
Wherein, oxidant includes potassium peroxydisulfate and calper calcium peroxide, and the mass ratio of potassium peroxydisulfate and calper calcium peroxide is 2：1；Surely
Determining agent includes phytic acid and butyl glycol ether, and the mass ratio of phytic acid and butyl glycol ether is 1：1.5；Builder includes sodium fluoride and fluorine
The mass ratio of change ammonium, sodium fluoride and ammonium fluoride is 1：1.8；Catalyst includes ferrous sulfate and cuprous sulfate；Ferrous sulfate and sulphur
The cuprous mass ratio of acid is 1：1.5；Solvent includes water and ethanol, and the mass ratio of water and ethanol is 4：1.
Embodiment 6
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：1 part of oxidant, stabilizer 1
Part, 0.1 part of catalyst, 1 part of builder and 1 part of solvent.
Wherein, oxidant is the mass ratio 1 of ammonium persulfate and hydrogen peroxide, ammonium persulfate and hydrogen peroxide：1, hydrogen peroxide it is dense
Spend for 30%；Stabilizer can include the mass ratio 1.5 of butyl glycol ether and phytic acid, butyl glycol ether and phytic acid：1；Builder
Including ammonium acid fluoride and ammonium fluoride, the mass ratio of ammonium acid fluoride and ammonium fluoride is 1.5：1；Catalyst includes ferric sulfate and sulfuric acid
The mass ratio of copper, ferric sulfate and copper sulphate is 2：1；Solvent is water.
Embodiment 7
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：10 parts of oxidant, stabilizer
45 parts of 5 parts, 2 parts of catalyst, 10 parts of builder and solvent.
Wherein, oxidant includes potassium peroxydisulfate, calper calcium peroxide and hydrogen peroxide, potassium peroxydisulfate, calper calcium peroxide and hydrogen peroxide
Mass ratio is 1：1：1.5, the content of hydrogen peroxide is 30%；Stabilizer includes phytic acid, butyl glycol ether, phytic acid, butyl glycol ether
Mass ratio be 1：1；Builder includes sodium fluoride, ammonium acid fluoride and ammonium fluoride, the quality of sodium fluoride, ammonium acid fluoride and ammonium fluoride
Than for 1.5：1：2, catalyst includes ferrous sulfate, cuprous sulfate and copper sulphate；The matter of ferrous sulfate, cuprous sulfate and copper sulphate
Amount is than being 1：1：1；Solvent includes water and ethanol, and the mass ratio of water and ethanol is 5：1.
Embodiment 8
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：35 parts of oxidant, stabilizer
35 parts of 2 parts, 0.2 part of catalyst, 30 parts of builder and solvent.
Wherein, oxidant includes potassium peroxydisulfate, ammonium persulfate, calper calcium peroxide and hydrogen peroxide, potassium peroxydisulfate, persulfuric acid
The mass ratio of ammonium, calper calcium peroxide and hydrogen peroxide is 2：1：2：1.The concentration of hydrogen peroxide is 30%.Stabilizer includes phytic acid, ethylene glycol
Butyl ether；Phytic acid, the mass ratio of butyl glycol ether are 1：1.5.Builder includes sodium fluoride, ammonium acid fluoride and ammonium fluoride, sodium fluoride,
The mass ratio of ammonium acid fluoride and ammonium fluoride is 1.5：1：1.Catalyst includes ferrous sulfate, ferric sulfate, cuprous sulfate and copper sulphate；
Ferrous sulfate, ferric sulfate, the mass ratio of cuprous sulfate and copper sulphate are 1：2：1：1.Solvent includes water and ethanol；Water and ethanol
Mass ratio is 1：1.5.
Embodiment 9
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：60 parts of oxidant, stabilizer
25 parts of 5 parts, 1 part of catalyst, 20 parts of builder and solvent.
Wherein, oxidant includes potassium peroxydisulfate, ammonium persulfate, calper calcium peroxide and hydrogen peroxide；Potassium peroxydisulfate, ammonium persulfate,
The mass ratio of calper calcium peroxide and hydrogen peroxide is 1.2：1.3：1：1.2, the concentration of hydrogen peroxide is 35%.Stabilizer includes phytic acid, second
Glycol butyl ether；Phytic acid, the mass ratio of butyl glycol ether are 1.2：1.3.Builder includes sodium fluoride, ammonium acid fluoride and ammonium fluoride,
The mass ratio of sodium fluoride, ammonium acid fluoride and ammonium fluoride is 1.2：1.1：1.5.It is sub- that catalyst includes ferrous sulfate, ferric sulfate, sulfuric acid
Copper and copper sulphate；Ferrous sulfate, ferric sulfate, the mass ratio of cuprous sulfate and copper sulphate are 1.1：1.5：1.3：1.6.Solvent includes
Water and ethanol；The mass ratio of water and ethanol is 4.5：1.1.
Embodiment 10
One kind that the present embodiment provides whitens cleaning mixture, includes each component of following parts by weight：30 parts of oxidant, stabilizer
40 parts of 6 parts, 3 parts of catalyst, 20 parts of builder and solvent.
Wherein, oxidant includes potassium peroxydisulfate, ammonium persulfate, calper calcium peroxide and hydrogen peroxide, potassium peroxydisulfate, persulfuric acid
The mass ratio of ammonium, calper calcium peroxide and hydrogen peroxide is 1.5：1：2：1.2, the content of hydrogen peroxide is 50%.Stabilizer include phytic acid,
Butyl glycol ether；Phytic acid, the mass ratio of butyl glycol ether are 1：1.5.Builder includes sodium fluoride, ammonium acid fluoride and ammonium fluoride,
The mass ratio of sodium fluoride, ammonium acid fluoride and ammonium fluoride is 1.5：1.2：2.Catalyst includes ferrous sulfate, ferric sulfate, cuprous sulfate
And copper sulphate；Ferrous sulfate, ferric sulfate, the mass ratio of cuprous sulfate and copper sulphate are 1.5：1.6：1：2.Solvent includes water and second
The mass ratio of alcohol, water and ethanol is 6：1.
Embodiment 11
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing is put into embodiment 10 and whitens cleaning mixture
In temperature be 25 DEG C at a temperature of carry out whitening dirty removing processing 60 seconds.
Embodiment 12
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing is put into whitening in cleaning mixture in embodiment 9
Carry out whitening dirty removing processing 120 seconds at a temperature of temperature is 30 DEG C.
Embodiment 13
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
Aluminium alloy after ungrease treatment, pickling processes, alkaline etching processing is put into whitening in cleaning mixture in embodiment 8
Carry out whitening dirty removing processing 90 seconds at a temperature of temperature is 20 DEG C.
Embodiment 14
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
S1, aluminium alloy is put into degreasing agent ungrease treatment is carried out at a temperature of 55 DEG C, the duration of ungrease treatment
For 5 minutes, wherein, degreasing agent can include following each component：20g/L aluminium alloy weak base erosion powder, dispersant is water.
S2, the aluminium alloy after ungrease treatment is put into mordant pickling processes are carried out at a temperature of room temperature, acid
The duration for washing processing is 60 seconds, wherein, mordant can include following each component：5% mixed acid solution, remaining component
For water.
S3, the aluminium alloy after overpickling is put into alkali cleaning agent at a temperature of 50 DEG C to progress alkaline etching processing, at alkaline etching
The duration of reason is 15 seconds, wherein, Alkaline etchant includes 60g/L alkaline etching powder, and remaining ingredient is water.
S4, the aluminium alloy after alkaline etching is handled is put into whitening in cleaning mixture 30 DEG C and whiten removing in embodiment 10
Dirt processing 60 seconds.
S5, the aluminium alloy after whitening dirty removing processing is carried out to the subsequent treatment such as heavy zinc, alkali nickel, copper facing, silver-plated.
Embodiment 15
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
S1, aluminium alloy is put into degreasing agent ungrease treatment is carried out at a temperature of 70 DEG C, the duration of ungrease treatment
For 8 minutes, wherein, degreasing agent can include following each component：100g/L aluminium alloy weak base erosion powder, dispersant is water.
S2, the aluminium alloy after ungrease treatment is put into mordant pickling processes are carried out at a temperature of room temperature, acid
The duration for washing processing is 120 seconds, wherein, mordant can include following each component：10% mixed acid solution, remaining group
It is divided into water.
S3, the aluminium alloy after overpickling is put into alkali cleaning agent at a temperature of 65 DEG C to progress alkaline etching processing, at alkaline etching
The duration of reason is 60 seconds, wherein, Alkaline etchant includes 80g/L alkaline etching powder, and remaining ingredient is water.
S4, the aluminium alloy after alkaline etching is handled is put into whitening in cleaning mixture in embodiment 10 whitened at 20 DEG C
Dirty removing processing 120 seconds.
S5, the aluminium alloy after whitening dirty removing processing is carried out to the subsequent treatment such as heavy zinc, alkali nickel, copper facing, silver-plated.
Embodiment 16
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
S1, aluminium alloy is put into degreasing agent ungrease treatment is carried out at a temperature of 60 DEG C, the duration of ungrease treatment
For 6 minutes, wherein, degreasing agent can include following each component：50g/L aluminium alloy weak base erosion powder, dispersant is water.
S2, the aluminium alloy after ungrease treatment is put into mordant pickling processes are carried out at a temperature of room temperature, acid
The duration for washing processing is 80 seconds, wherein, mordant can include following each component：7% mixed acid solution, remaining component
For water.
S3, the aluminium alloy after overpickling is put into alkali cleaning agent at a temperature of 60 DEG C to progress alkaline etching processing, at alkaline etching
The duration of reason is 40 seconds, wherein, Alkaline etchant includes 70g/L alkaline etching powder, and remaining ingredient is water.
S4, the aluminium alloy after alkaline etching is handled is put into embodiment 8 to whiten in cleaning mixture whiten removing at 26 DEG C
Dirt processing 80 seconds.
S5, the aluminium alloy after whitening dirty removing processing is carried out to the subsequent treatment such as heavy zinc, alkali nickel, copper facing, silver-plated.
Embodiment 17
A kind of pre-treating method of aluminium alloy is present embodiments provided, is comprised the following steps：
S1, aluminium alloy is put into degreasing agent ungrease treatment is carried out at a temperature of 60 DEG C, the duration of ungrease treatment
For 7 minutes, then the aluminium alloy after degreasing is washed.Wherein, degreasing agent can include following each component：40g/L aluminium
Alloy weak base loses powder, and dispersant is water.
S2, the aluminium alloy after ungrease treatment is put into mordant pickling processes are carried out at a temperature of room temperature, acid
90 seconds duration of processing are washed, the aluminium alloy after pickling is washed.Wherein, mordant can include following each component：
8% mixed acid solution, remaining component are water.
S3, the aluminium alloy after overpickling is put into alkali cleaning agent at a temperature of 55 DEG C to progress alkaline etching processing, at alkaline etching
The duration of reason is 30 seconds, and the aluminium alloy after alkaline etching is washed.Wherein, Alkaline etchant includes 65g/L alkaline etching powder, remains
Remaining component is water.
S4, the aluminium alloy after alkaline etching is handled is put into whitening in cleaning mixture in embodiment 9 whitened at 30 DEG C
Dirty removing processing 90 seconds, washed to whitening the aluminium alloy after scale removal.
S5, the aluminium alloy after whitening dirty removing processing is carried out to the subsequent treatment such as heavy zinc, alkali nickel, copper facing, silver-plated, heavy
Zinc, alkali nickel, copper facing and it is silver-plated after aluminium alloy is washed.
Test example 1
The aluminium alloy after pickling processes, alkaline etching processing whiten removing using the cleaning mixture that whitens in embodiment 1
Dirt processing, obtains contrast effect before and after the processing, and the aluminium alloy of before processing is as shown in figure 1, aluminium alloy such as Fig. 2 institutes after processing
Show, therefore, by contrast it can be seen that this whitens cleaning mixture and can effectively remove the grey black of aluminum alloy surface, and aluminum flake surface is equal
It is even white bright.In addition, harmful vapors will not be produced during whitening scale removal, be advantageous to the health of worker.
In summary, by whiten oxidant in cleaning mixture and catalyst to the impurity element such as iron of aluminum alloy surface,
Manganese, copper, silicon etc. are aoxidized, and it is generated the oxide of foreign ion, are reacted with builder, can so remove afterwards
The impurity of aluminum alloy surface, 1~100 part of simultaneous oxidation agent, 1~10 part of stabilizer, 0.1~5 part of catalyst, builder 1~50
Part and 1~50 part of solvent proportional arrangement so that can mutually be cooperateed between various composition, not only whiten scale removal efficiency high,
Effect is good, and can avoid producing harmful vapors, effectively ensures the health of operating personnel.It can so avoid existing
There are nitrogen oxides caused by technique and fluoride gas, so as to avoid endangering environment, so as to ensure the health of operator.
Embodiments described above is part of the embodiment of the present invention, rather than whole embodiments.The reality of the present invention
The detailed description for applying example is not intended to limit the scope of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, belongs to the scope of protection of the invention.
Claims (10)
1. one kind whitens cleaning mixture, it is characterised in that by weight, including：
1~100 part of oxidant；
1~10 part of stabilizer；
0.1~5 part of catalyst；
1~50 part of builder；And
1~50 part of solvent.
2. according to claim 1 whiten cleaning mixture, it is characterised in that the oxidant includes persulfate and peroxidating
At least one of thing；
Preferably, the persulfate includes at least one of potassium peroxydisulfate, ammonium persulfate；
Preferably, the peroxide includes at least one of hydrogen peroxide, calper calcium peroxide.
3. according to claim 1 whiten cleaning mixture, it is characterised in that the oxidant includes potassium peroxydisulfate, persulfuric acid
At least one of ammonium, hydrogen peroxide and calper calcium peroxide；
Preferably, the oxidant includes the potassium peroxydisulfate, the ammonium persulfate, the hydrogen peroxide and the peroxidating
Calcium.
4. according to claim 1 whiten cleaning mixture, it is characterised in that the stabilizer includes phytic acid, butyl glycol ether
At least one of；
Preferably, the stabilizer includes phytic acid and butyl glycol ether, it is highly preferred that the phytic acid, the butyl glycol ether
Mass ratio is (1~1.5)：(1~1.5).
5. according to claim 1 whiten cleaning mixture, it is characterised in that the builder includes fluoride；
Preferably, the fluoride includes at least one of sodium fluoride, ammonium acid fluoride and ammonium fluoride, it is highly preferred that the fluorine
Compound includes the sodium fluoride, the ammonium acid fluoride and the ammonium fluoride, it is further preferred that the sodium fluoride, the fluorination
The mass ratio of hydrogen ammonium and the ammonium fluoride is 1~1.5)：(1~1.5)：(1~2).
6. according to claim 1 whiten cleaning mixture, it is characterised in that the catalyst include ferrous sulfate, ferric sulfate,
At least one of cuprous sulfate and copper sulphate.
7. according to claim 1 whiten cleaning mixture, it is characterised in that the solvent includes at least one in water and ethanol
Kind；
Preferably, the solvent includes the water and the ethanol, it is highly preferred that the mass ratio of the water and the ethanol is (3
~6)：(1~1.5).
8. according to claims 1 to 7 whitens purposes of the cleaning mixture as aluminum alloy surface cleaning fluid.
9. a kind of pre-treating method of aluminium alloy, comprises the following steps：
With according to claim 1~7 any one whiten cleaning mixture to aluminium alloy for example by ungrease treatment, pickling at
Aluminium alloy after reason, alkaline etching processing carries out whitening dirty removing processing.
10. the pre-treating method of the aluminium alloy according to any one of claim 7~8, it is characterised in that described to whiten scale removal
The duration of processing is 60 seconds~120 seconds；
Preferably, the dirty removing processing that whitens is carried out at a temperature of 20~30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710784281.8A CN107502899A (en) | 2017-09-04 | 2017-09-04 | Whiten the pre-treating method of cleaning mixture and application thereof and aluminium alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784281.8A CN107502899A (en) | 2017-09-04 | 2017-09-04 | Whiten the pre-treating method of cleaning mixture and application thereof and aluminium alloy |
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| CN110438509A (en) * | 2019-08-15 | 2019-11-12 | 昆山兰博旺新材料技术服务有限公司 | Pickling solution for pack alloy passivation technology |
| CN115074793A (en) * | 2022-06-16 | 2022-09-20 | 山东省机械设计研究院 | Novel electroplating process of copper-aluminum composite material |
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Application publication date: 20171222 |