CN110257838A - Aluminum profile dusts pre-treating technology - Google Patents
Aluminum profile dusts pre-treating technology Download PDFInfo
- Publication number
- CN110257838A CN110257838A CN201910589085.4A CN201910589085A CN110257838A CN 110257838 A CN110257838 A CN 110257838A CN 201910589085 A CN201910589085 A CN 201910589085A CN 110257838 A CN110257838 A CN 110257838A
- Authority
- CN
- China
- Prior art keywords
- parts
- aluminum profile
- washing
- water
- dusts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/34—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides
- C23C22/36—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates
- C23C22/367—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing fluorides or complex fluorides containing also phosphates containing alkaline earth metal cations
-
- 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/12—Light metals
- C23G1/125—Light metals aluminium
-
- 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
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/22—Light metals
-
- 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
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/20—Use of solutions containing silanes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Dust pre-treating technology the invention discloses a kind of aluminum profile, belong to aluminium shape surface process field, the pre-treating technology its key points of the technical solution are that a kind of aluminum profile dusts includes the following steps: S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；S2: washing；S3: pre- degreasing；S4: washing；S5: alkali cleaning；S6: washing；S7: light processing is removed；S8: washing；S9: chromium-free deactivation；S10: washing；S11: drying and processing, first drip-dry, then dry.Achieve the effect that the feature of environmental protection improved in aluminium shape surface treatment process is good.
Description
Technical field
The present invention relates to aluminium shape surface process field, in particular to aluminum profile dusts pre-treating technology.
Background technique
In daily life, aluminum profile using ubiquitous, aluminum profile doorframe, the shell for manufacturing electronic product with aluminum profile
Or components.During processing, aluminium shape surface can attach greasy dirt etc., such as aluminum profile punching press in a mold to aluminum profile
During, the grease on mold can be often adhered to, there are also some greasy deposits swum in workshop air in aluminium shape surface,
So aluminum profile is required to be surface-treated aluminum profile before the techniques such as spray painting, welding, the greasy dirt of aluminium shape surface is removed.
During existing some aluminium shape surface treatment process, usually based on nitric acid, while chromic acid and hydrogen fluorine is added
Acid handles aluminium shape surface, although fluorine ion can speed up the oxidation film of dissolution aluminium shape surface, hydrofluoric acid
Matter is unstable, and toxic gas is easy to produce in tank liquor, is detrimental to health.
Summary of the invention
In view of the deficienciess of the prior art, dusting pre-treating technology the object of the present invention is to provide a kind of aluminum profile, reach
The effect good to the feature of environmental protection improved in aluminium shape surface treatment process.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of aluminum profile dusts pre-treating technology, includes the following steps:
S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；
S2: washing；
S3: degreasing agent is added in pre- degreasing in degreasing bath, and the aluminum profile in S2 is hung in by driving and carries out degreasing in degreasing bath
Processing；Wherein according to parts by weight, degreasing agent includes 80-140 parts of phosphoric acid, 40-60 parts of sulfuric acid, 35-50 parts of sodium gluconate, two
25-55 parts of propylene glycol, 20-40 parts of ferric sulfate, 10-30 parts of oxidant；
S4: the aluminum profile in S3 is cleaned in washing；
S5: alkali cleaning agent is added in alkaline bath and water forms alkali wash water, the aluminum profile in S4 is hung in alkali cleaning by driving for alkali cleaning
Alkali cleaning processing is carried out in slot；Wherein according to parts by weight, alkali wash water includes 30-50 parts of sodium phosphate, 25-35 parts of sodium metasilicate, hydrogen-oxygen
Change sodium 60-80 parts, 20-40 parts of phosphoric acid, 20-40 parts of sodium gluconate；
S6: washing；
S7: removing light processing, is added in except light slot except photo etching and water form polish remover, and the aluminum profile in S6 is hung in by driving
Light processing is removed except chemistry is carried out in light slot；Wherein according to parts by weight, except photo etching includes 40-60 parts of citric acid, alkyl benzene sulphonate
40-50 parts of sodium, 30-60 parts of methane sulfonic acid；
S8: washing；
S9: passivator is added in chromium-free deactivation in deactivation slot, carries out surface passivating treatment to the aluminum profile in S8；Wherein by weight
Measure number meter, passivator include 50-60 parts of fluotitanic acid ammonia, 20-40 parts of nitric acid, 15-30 parts of calcium carbonate, 40-50 parts of organic phosphoric acid,
20-40 parts of silane coupling agent；
S10: washing；
S11: drying and processing, first drip-dry, then dry.
By using above-mentioned technical proposal, aluminum profile is fixed on stock shelf, is then hung in rinsing bowl again, for the first time
First aluminium shape surface to be soaked when washing, pre- degreasing agent is contacted with aluminium shape surface when facilitating pre- degreasing, while first after washing,
The some impurity for attaching in aluminium shape surface are removed, the cleaning in later period is facilitated.
When pre- degreasing, phosphoric acid, sulfuric acid can dissolve and remove the natural oxide film of aluminium shape surface, when on aluminum profile from
After right oxidation film removes, phosphoric acid, sulfuric acid are contacted with aluminium shape surface, so that the surface of aluminium is activated, to help to remove aluminium profiles
The grease on material surface, while phosphoric acid, sulfuric acid are during use, will not generate acid mist, thus will not be to environmental effects.
Dipropylene glycol is soluble easily in water, while micro- poison will not have an impact human health, improves the quality of processing environment, dipropylene glycol energy
The surface tension for enough reducing solution, can effectively improve the cleaning ability of degreasing agent and aluminium shape surface in acid corrosion process, simultaneously
The stability for also contributing to degreaser, prevent from during degreasing forming floccule in degreasing bath and the effect that influences degreasing
Rate.Ferric ion can speed up corrosion and removing oxidation film to aluminium shape surface, while iron ion and aluminium shape surface
Occur displacement reaction, enable to aluminium shape surface generate trace hydrogen, take greasy dirt out of aluminium shape surface, simultaneously because iron from
Son occurs displacement with aluminium and reacts, to generate ferrous ion, the addition of oxidant can carry out oxidation life to ferrous ion
At ferric ion, the utilization rate of iron ion is improved, while also guaranteeing the stability of degreasing agent solution.Sodium gluconate was both safe
Environmental protection, while the addition of sodium gluconate are able to maintain that the stability of degreasing agent solution, effectively delay to be formed in degreasing agent solution
The time of flocculate, to improve the efficiency of degreasing agent recycling.
In alkaline cleaning procedure, further the oxidation film of aluminium shape surface further can be removed by alkaline etching, simultaneously also
The remaining part acid solution of aluminium shape surface can be neutralized, prevents from causing aluminum profile excessive erosion, while sodium gluconate is as fouling
Inhibitor, the greasy dirt after effectivelying prevent removing form floccule and are attached again in aluminium shape surface, improved clear to aluminium shape surface
The efficiency of reason, while sodium phosphate, sodium metasilicate, sodium hydroxide, phosphoric acid and sodium gluconate are small to human body and environmental hazard, use
It is environmentally friendly in journey.
Aluminum profile can reduce the asperity of aluminium shape surface except light, make metal surface smooth, while can be into
One step reinforces the removal to aluminium shape surface grease, and the addition of citric acid is complexed with except the complexing of metal ion in light slot is formed
Object, and complex compound helps to improve the stability except photo etching solution, while the addition of citric acid can be improved sodium alkyl benzene sulfonate
Solubility between grease, improves degreasing power, and the grease and oxidation film for removing aluminium shape surface make aluminium shape surface light
Cunning is smooth, and sodium alkyl benzene sulfonate not only has emulsifiability, while also having certain decontamination and wettability；Methane sulfonic acid is made
For leveling agent and brightener, corrode with aluminium shape surface, so that aluminium shape surface is flat and smooth, improves the efficiency for removing light.
Chromium-free deactivation can effectively reduce the pollution to environment during degreasing and alkali cleaning, iron in aluminum profile,
Magnesium silicon plasma can remain in aluminium shape surface, form the unconsolidated material of grey black, influence subsequent processing insoluble in lye
Technique, and the addition of nitric acid can effectively remove the spot of aluminium shape surface, so that aluminium shape surface is consistent, use fluotitanic acid
Ammonia replaces chromium compounds, can reduce the pollution to environment, while can also effectively improve the corrosion resistance and adhesive force of passivating film, and
Ammonium ion in fluotitanic acid ammonia additionally aids the pH value for adjusting passivator solution, keeps the stability of solution.
The addition of silane coupling agent and aluminum alloy surface form organic silane film, enhance passivating film adhesive ability and corrosion-resistant
The reason of ability, silane film can be improved the adhesive ability of passivating film is that silane group and aluminium shape surface form metal silane
Key, metal silane bond energy enough improves the bonding force of fluotitanic acid ammonia and aluminium shape surface, while silane coupling agent contains Si-O-Si net
Network structure, and this network structure can effectively prevent the immersion of aggressivity meson, realize the protection to aluminum profile.Organic phosphoric acid
Protective film is formed with metal-chelating, while under the action of silane coupling agent, the protective film that organic phosphoric acid and metal-chelating are formed
It can be improved the adhesive ability with aluminium shape surface, to improve the protection to aluminum profile.And calcium ion and fluorine in calcium carbonate
Ionic reaction forms fluoride, the fluorine ion in passivating solution is consumed, by the stability of low fluotitanic acid ammonia, to accelerate titanium in aluminium profiles
The deposition on material surface shortens the processing time to reduce film forming speed, while the common presence of nitric acid and calcium ion also effectively mentions
The corrosion resisting property of high passivating film.
Fluotitanic acid ammonia, nitric acid, calcium carbonate, organic phosphoric acid and silane coupling agent are during use to the pollution of environment
It is small, effectively improve the environmental-protecting performance used.
Aluminum profile after passivation is washed and then dried again, then carries out subsequent working process, to mention
The corrosion resistance of high aluminum profile.
The present invention is further arranged to, and in S2, the treatment temperature of pre- degreasing is 25 DEG C, and the processing time is 8-12min.
By using above-mentioned technical proposal, due to containing sulfuric acid and phosphoric acid in pre- degreasing, when during degreasing
Between cannot be too long, prevent that aluminum profile was caused to pollute and influences the service performance of aluminum profile.
The present invention is further arranged to, and in S2, according to parts by weight, degreasing agent includes 10 parts of phosphatase 11,50 parts of sulfuric acid, Portugal
42 parts of grape sodium saccharate, 40 parts of dipropylene glycol, 30 parts of ferric sulfate, 20 parts of oxidant.
The present invention is further arranged to, and in S2, oxidant uses at least one of hydrogen peroxide or potassium permanganate.
By using above-mentioned technical proposal, hydrogen peroxide or potassium permanganate are oxidants, can be with the carbon-carbon bond in grease
Reaction, so that grease decomposes, to facilitate degreasing, while hydrogen peroxide and potassium permanganate during use will not be to environment
It has an impact.
The present invention is further arranged to, and in S6, is washed twice to aluminum profile, washing conditions are as follows: and 25 DEG C of washing temperature,
PH3-7, water-washing method: being into going out.
The present invention is further arranged to, in S7, except light temperature is 25 DEG C, when removing light between 4-8min, except polish remover in light slot
Concentration is 3-10；Except photo etching includes 50 parts of citric acid, 45 parts of sodium alkyl benzene sulfonate, 45 parts of methane sulfonic acid.
The present invention is further arranged to, S8, and washing includes two steps, and pure water is washed after first washing, PH3-7 when washing, temperature 25
DEG C, water-washing method is into going out；When pure water is washed, conductivity ﹤ 50us/cm, the PH ﹥ 5 of water, 25 DEG C of temperature, water-washing method is into i.e.
Out.
By using above-mentioned technical proposal, first wash mainly removes the polish remover for remaining in aluminium shape surface, is convenient for
The processing in later period washes away the partially acidic substance for remaining in aluminium shape surface, when then carrying out pure water again and washing convenient for the later period
Passivation Treatment.
The present invention is further arranged to, S9, chromium-free deactivation, and 25 DEG C of temperature, passivation time 40s-60s；Passivator includes fluorine
55 parts of metatitanic acid ammonia, 30 parts of nitric acid, 22 parts of calcium carbonate, 45 parts of organic phosphoric acid, 30 parts of silane coupling agent.
The present invention is further arranged to, and in S9, organic phosphoric acid uses aminotrimethylene phosphate.
By using above-mentioned technical proposal, aminotrimethylene phosphate has the architectural characteristic of phosphoric acid and carboxylic acid, makes it have
Good corrosion inhibition, while the protective film excellent corrosion-proof performance formed in conjunction with titanium ion, effectively prevent aluminium in use process
The influence of profile.
The present invention is further arranged to, S11, and drying uses temperature for 65 DEG C of -95 DEG C of hot-air seasonings, time 20-30min.
In conclusion the invention has the following advantages:
1, pre- degreasing agent, alkali cleaning agent, remove photo etching and the equal small pollution of the environment of chromium-free deactivation, while it is also small to human injury,
Improve the environmental-protecting performance used；
2, fluotitanic acid ammonia, machine phosphoric acid, calcium carbonate, silane coupling agent are used cooperatively in chrome-free tanning agent, in aluminium shape surface
The passivating film of formation can not only effectively improve the adhesive force of film layer, while also effectively improve the corrosion resisting property of film layer.
Specific embodiment
Embodiment 1
A kind of aluminum profile dusts pre-treating technology, includes the following steps:
S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；
S2: washing；
S3: degreasing agent is added in pre- degreasing in degreasing bath, temperature be 25 DEG C, by the aluminum profile in S2 by driving hang in it is de-
Ungrease treatment is carried out in rouge slot, the processing time is 8min；Wherein according to parts by weight, degreasing agent includes 80 parts of phosphoric acid, sulfuric acid 40
Part, 35 parts of sodium gluconate, 25 parts of dipropylene glycol, 20 parts of ferric sulfate, 10 parts of hydrogen peroxide；
S4: the aluminum profile in S3 is cleaned in washing；
S5: alkali cleaning agent is added in alkaline bath and water forms alkali wash water for alkali cleaning, is 25 DEG C in temperature, the aluminum profile in S4 is led to
It crosses driving and hangs in progress alkali cleaning processing in alkaline bath, handle time 6min；Wherein according to parts by weight, alkali wash water includes sodium phosphate
30 parts, 25 parts of sodium metasilicate, 60 parts of sodium hydroxide, 20 parts of phosphoric acid, 20 parts of sodium gluconate；
S6: washing washes aluminum profile, washing conditions are as follows: 25 DEG C of washing temperature, PH3, water-washing method: being into i.e. twice
Out；
S7: removing light processing, is added in except light slot except photo etching and water form polish remover, except light temperature is 25 DEG C, polish remover concentration
It is 3；Aluminum profile in S6 is hung in by driving except chemistry is carried out in light slot except light processing, when removing light between 4min；Wherein by weight
Number meter is measured, except photo etching includes 40 parts of citric acid, 40 parts of sodium alkyl benzene sulfonate, 30 parts of methane sulfonic acid；
S8: washing, washing include two steps, and pure water is washed after first washing, PH3 when washing, and 25 DEG C of temperature, water-washing method is into going out；
When pure water is washed, conductivity ﹤ 50us/cm, the PH ﹥ 5 of water, 25 DEG C of temperature, water-washing method is into going out；
S9: passivator is added in deactivation slot, 25 DEG C of temperature, carries out surface passivating treatment to the aluminum profile in S8 for chromium-free deactivation,
Passivation time 40s；Wherein according to parts by weight, passivator includes 50 parts of fluotitanic acid ammonia, 20 parts of nitric acid, 15 parts of calcium carbonate, amino
Three 0 part of methene phosphatase 24s, 20 parts of silane coupling agent.
S10: washing；
S11: drying and processing, first drip-dry, then dry, drying uses temperature for 65 DEG C of hot-air seasonings, time 20min.
Embodiment 2
A kind of aluminum profile dusts pre-treating technology, includes the following steps:
S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；
S2: washing；
S3: degreasing agent is added in pre- degreasing in degreasing bath, temperature be 25 DEG C, by the aluminum profile in S2 by driving hang in it is de-
Ungrease treatment is carried out in rouge slot, the processing time is 10min；Wherein according to parts by weight, degreasing agent includes 10 parts of phosphatase 11, sulfuric acid
50 parts, 42 parts of sodium gluconate, 40 parts of dipropylene glycol, 30 parts of ferric sulfate, 20 parts of oxidant；
S4: the aluminum profile in S3 is cleaned in washing；
S5: alkali cleaning agent is added in alkaline bath and water forms alkali wash water for alkali cleaning, is 25 DEG C in temperature, the aluminum profile in S4 is led to
It crosses driving and hangs in progress alkali cleaning processing in alkaline bath, handle time 8min；Wherein according to parts by weight, alkali wash water includes sodium phosphate
40 parts, 30 parts of sodium metasilicate, 70 parts of sodium hydroxide, 30 parts of phosphoric acid, 30 parts of sodium gluconate；
S6: washing washes aluminum profile, washing conditions are as follows: 25 DEG C of washing temperature, PH5, water-washing method: being into i.e. twice
Out；
S7: removing light processing, is added in except light slot except photo etching and water form polish remover, except light temperature is 25 DEG C, polish remover concentration
It is 6；Aluminum profile in S6 is hung in by driving except chemistry is carried out in light slot except light processing, when removing light between 6min；Wherein by weight
Number meter is measured, except photo etching includes 50 parts of citric acid, 45 parts of sodium alkyl benzene sulfonate, 45 parts of methane sulfonic acid；
S8: washing, washing include two steps, and pure water is washed after first washing, and PH3-7 when washing, 25 DEG C of temperature, water-washing method is into i.e.
Out；When pure water is washed, conductivity ﹤ 50us/cm, the PH ﹥ 5 of water, 25 DEG C of temperature, water-washing method is into going out；
S9: passivator is added in deactivation slot, 25 DEG C of temperature, carries out surface passivating treatment to the aluminum profile in S8 for chromium-free deactivation,
Passivation time 50s；Wherein according to parts by weight, passivator includes 55 parts of fluotitanic acid ammonia, 30 parts of nitric acid, 22 parts of calcium carbonate, amino
Three 5 parts of methene phosphatase 24s, 30 parts of silane coupling agent；
S10: washing；
S11: drying and processing, first drip-dry, then dry, drying uses temperature for 80 DEG C of hot-air seasonings, time 25min.
Embodiment 3
A kind of aluminum profile dusts pre-treating technology, includes the following steps:
S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；
S2: washing；
S3: degreasing agent is added in pre- degreasing in degreasing bath, temperature be 25 DEG C, by the aluminum profile in S2 by driving hang in it is de-
Ungrease treatment is carried out in rouge slot, the processing time is 12min；Wherein according to parts by weight, degreasing agent includes 40 parts of phosphatase 11, sulfuric acid
60 parts, 50 parts of sodium gluconate, 55 parts of dipropylene glycol, 40 parts of ferric sulfate, 30 parts of hydrogen peroxide；
S4: the aluminum profile in S3 is cleaned in washing；
S5: alkali cleaning agent is added in alkaline bath and water forms alkali wash water for alkali cleaning, is 25 DEG C in temperature, the aluminum profile in S4 is led to
It crosses driving and hangs in progress alkali cleaning processing in alkaline bath, handle time 10min；Wherein according to parts by weight, alkali wash water includes phosphoric acid
50 parts of sodium, 35 parts of sodium metasilicate, 80 parts of sodium hydroxide, 0 part of phosphatase 24,40 parts of sodium gluconate；
S6: washing washes aluminum profile, washing conditions are as follows: 25 DEG C of washing temperature, PH7, water-washing method: being into i.e. twice
Out；
S7: removing light processing, is added in except light slot except photo etching and water form polish remover, except light temperature is 25 DEG C, polish remover concentration
It is 10；Aluminum profile in S6 is hung in by driving except chemistry is carried out in light slot except light processing, when removing light between 8min；Wherein by weight
Number meter is measured, except photo etching includes 60 parts of citric acid, 50 parts of sodium alkyl benzene sulfonate, 60 parts of methane sulfonic acid；
S8: washing, washing include two steps, and pure water is washed after first washing, PH7 when washing, and 25 DEG C of temperature, water-washing method is into going out；
When pure water is washed, conductivity ﹤ 50us/cm, the PH ﹥ 5 of water, 25 DEG C of temperature, water-washing method is into going out；
S9: passivator is added in deactivation slot, 25 DEG C of temperature, carries out surface passivating treatment to the aluminum profile in S8 for chromium-free deactivation,
Passivation time 60s；Wherein according to parts by weight, passivator includes 60 parts of fluotitanic acid ammonia, 40 parts of nitric acid, 30 parts of calcium carbonate, amino
Three 50 parts of methene phosphoric acid, 40 parts of silane coupling agent.
S10: washing；
S11: drying and processing, first drip-dry, then dry, drying uses temperature for 95 DEG C of hot-air seasonings, time 30min.
Embodiment 4
Difference from Example 2 is, replaces hydrogen peroxide with the potassium permanganate of equivalent.
Comparative example 1
Use Authorization Notice No. for the Chinese patent of CN103498180B, a kind of entitled environmentally friendly anodic oxidation pre-treating technology side
Method, this method in turn include the following steps: Solvent degreasing step, electrochemical deoiling step go out light step, alkaline etching step and go out
Light step.
Performance detection
Membranous layer corrosion resistance and film adhesive detection are carried out to the aluminum profile in embodiment 1-4 and comparative example 1, testing result is such as
Shown in table 1.
(1) membranous layer corrosion resistance evaluation uses neutral salt spray test, and salt spray test is referring to GB/T10125-1997, testing liquid
For 5%(mass fraction) sodium-chloride water solution, in 6.5-7.2, the temperature inside the box is 35 DEG C for PH control, continuous 72 hours by spraying, is taken
Sample board rinsed clean out, is then measured mass loss, when quality test, removes the protective film at the sample back side, uses 1:1
The hydrochloric acid solution of (volume ratio) impregnates sample and removes corrosion product, so wherein the hexamethylenetetramine corrosion inhibiter of 3.5g/L is added
Room temperature washes with water test again afterwards, then is cleaned with acetone, weighs after dry；
(2) film adhesive test-cross-hatching, film adhesive test by mode as defined in GB/T 9286-1998 standard into
Row, using crosscut adhesion test qualitative determination, according to the dropping situations in film scribing area, accurately grades to adhesive force.
1 aluminum profile testing result of table
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 |
| Salt spray test cephacoria weight (mg/m2) | 42 | 50 | 45 | 49 | 32 |
| Salt spray test caudacoria weight (mg/m2) | 39 | 49 | 42 | 48 | 26 |
| Film weight-loss ratio (%) | 7.1 | 2 | 6.7 | 2 | 18.8 |
| Cosmetic variation after salt spray test | Slight discoloration | It is unchanged | Slight discoloration | It is unchanged | Occur corrosion product, slight loss of gloss on the surface |
| Adhesive force grade | 0 grade | 0 grade | 0 grade | 0 grade | 1 grade |
As can be known from the above table:
The amount of salt spray test cephacoria weight and test caudacoria weight is above the amount of the weight of the film in comparative example 1 in embodiment 1-4, simultaneously
Adhesive force grade illustrates each component in embodiment 1-4 and the pass between proportion also superior to the adhesive force grade in comparative example 1
System can effectively improve the corrosion resisting property of aluminum profile, play a good protective effect to aluminum profile, while each group in embodiment 1-4
Divide small pollution of the environment, improves the environmental-protecting performance used.
In embodiment 1-3, as can be known from the above table, all data in embodiment 2 is best, illustrates that the scheme in embodiment 2 is
More excellent scheme can effectively improve the corrosion resisting property of aluminum profile.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
- The pre-treating technology 1. a kind of aluminum profile dusts, which comprises the steps of:S1: aluminum profile is fixed on stock shelf by adjustment stock shelf；S2: washing；S3: degreasing agent is added in pre- degreasing in degreasing bath, and the aluminum profile in S2 is hung in by driving and carries out degreasing in degreasing bath Processing；Wherein according to parts by weight, degreasing agent includes 80-140 parts of phosphoric acid, 40-60 parts of sulfuric acid, 35-50 parts of sodium gluconate, two 25-55 parts of propylene glycol, 20-40 parts of ferric sulfate, 10-30 parts of oxidant；S4: the aluminum profile in S3 is cleaned in washing；S5: alkali cleaning agent is added in alkaline bath and water forms alkali wash water, the aluminum profile in S4 is hung in alkali cleaning by driving for alkali cleaning Alkali cleaning processing is carried out in slot；Wherein according to parts by weight, alkali wash water includes 30-50 parts of sodium phosphate, 25-35 parts of sodium metasilicate, hydrogen-oxygen Change sodium 60-80 parts, 20-40 parts of phosphoric acid, 20-40 parts of sodium gluconate；S6: washing；S7: removing light processing, is added in except light slot except photo etching and water form polish remover, and the aluminum profile in S6 is hung in by driving Light processing is removed except chemistry is carried out in light slot；Wherein according to parts by weight, except photo etching includes 40-60 parts of citric acid, alkyl benzene sulphonate 40-50 parts of sodium, 30-60 parts of methane sulfonic acid；S8: washing；S9: passivator is added in chromium-free deactivation in deactivation slot, carries out surface passivating treatment to the aluminum profile in S8；Wherein by weight Measure number meter, passivator include 50-60 parts of fluotitanic acid ammonia, 20-40 parts of nitric acid, 15-30 parts of calcium carbonate, 40-50 parts of organic phosphoric acid, 20-40 parts of silane coupling agent；S10: washing；S11: drying and processing, first drip-dry, then dry.
- The pre-treating technology 2. aluminum profile according to claim 1 dusts, it is characterised in that: in S2, the processing temperature of pre- degreasing Degree is 25 DEG C, and the processing time is 8-12min.
- The pre-treating technology 3. aluminum profile according to claim 1 dusts, it is characterised in that: in S2, according to parts by weight, take off Rouge agent includes 10 parts of phosphatase 11,50 parts of sulfuric acid, 42 parts of sodium gluconate, 40 parts of dipropylene glycol, 30 parts of ferric sulfate, 20 parts of oxidant.
- The pre-treating technology 4. aluminum profile according to claim 1 dusts, it is characterised in that: in S2, oxidant uses dioxygen At least one of water or potassium permanganate.
- The pre-treating technology 5. aluminum profile according to claim 1 dusts, it is characterised in that: in S6, two are carried out to aluminum profile Secondary washing, washing conditions are as follows: 25 DEG C of washing temperature, PH3-7, water-washing method: being into going out.
- The pre-treating technology 6. aluminum profile according to claim 1 dusts, it is characterised in that: in S7, except light temperature is 25 DEG C, 4-8min between when except light, except polish remover concentration is 3-10 in light slot；Except photo etching includes 50 parts of citric acid, sodium alkyl benzene sulfonate 45 Part, 45 parts of methane sulfonic acid.
- The pre-treating technology 7. aluminum profile according to claim 1 dusts, it is characterised in that: S8, washing include two steps, first water It washes rear pure water to wash, PH3-7 when washing, 25 DEG C of temperature, water-washing method is into going out；When pure water is washed, the conductivity ﹤ 50us/cm of water, PH ﹥ 5,25 DEG C of temperature, water-washing method is into going out.
- The pre-treating technology 8. aluminum profile according to claim 1 dusts, it is characterised in that: S9, chromium-free deactivation, temperature 25 DEG C, passivation time 40s-60s；Passivator includes 55 parts of fluotitanic acid ammonia, 30 parts of nitric acid, 22 parts of calcium carbonate, 45 parts of organic phosphoric acid, silicon 30 parts of alkane coupling agent.
- The pre-treating technology 9. aluminum profile according to claim 1 dusts, it is characterised in that: in S9, organic phosphoric acid uses ammonia Three methene phosphoric acid of base.
- The pre-treating technology 10. aluminum profile according to claim 1 dusts, it is characterised in that: S11, drying use temperature for 65 DEG C of -95 DEG C of hot-air seasonings, time 20-30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589085.4A CN110257838B (en) | 2019-07-02 | 2019-07-02 | Aluminum profile powder spraying pretreatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910589085.4A CN110257838B (en) | 2019-07-02 | 2019-07-02 | Aluminum profile powder spraying pretreatment process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110257838A true CN110257838A (en) | 2019-09-20 |
| CN110257838B CN110257838B (en) | 2021-02-19 |
Family
ID=67923742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910589085.4A Active CN110257838B (en) | 2019-07-02 | 2019-07-02 | Aluminum profile powder spraying pretreatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110257838B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921316A (en) * | 2021-01-20 | 2021-06-08 | 福建省闽发铝业股份有限公司 | Green environment-friendly aluminum profile spraying pretreatment process |
| CN113818023A (en) * | 2021-09-22 | 2021-12-21 | 嘉兴誉品光电科技有限公司 | High-finish-degree LED aluminum frame surface powder spraying pretreatment process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060130936A1 (en) * | 2002-09-09 | 2006-06-22 | Magnesum Technolgy Limited | Surface treatment of magnesium and its alloys |
| CN103498180A (en) * | 2013-08-23 | 2014-01-08 | 北京星航机电装备有限公司 | Environment-friendly anodic oxidation pretreatment process |
| CN105463429A (en) * | 2015-12-10 | 2016-04-06 | 太仓贝斯特机械设备有限公司 | Passivation method for aluminum material |
| CN107805835A (en) * | 2017-10-19 | 2018-03-16 | 江苏百舸有色金属工业科技有限公司 | Aluminium section bar Coloured Anodizing technique |
| CN109338351A (en) * | 2018-09-10 | 2019-02-15 | 佛山市保利来建材实业有限公司 | A kind of aluminum veneer Chrome-free pre-treating technology |
-
2019
- 2019-07-02 CN CN201910589085.4A patent/CN110257838B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060130936A1 (en) * | 2002-09-09 | 2006-06-22 | Magnesum Technolgy Limited | Surface treatment of magnesium and its alloys |
| CN103498180A (en) * | 2013-08-23 | 2014-01-08 | 北京星航机电装备有限公司 | Environment-friendly anodic oxidation pretreatment process |
| CN105463429A (en) * | 2015-12-10 | 2016-04-06 | 太仓贝斯特机械设备有限公司 | Passivation method for aluminum material |
| CN107805835A (en) * | 2017-10-19 | 2018-03-16 | 江苏百舸有色金属工业科技有限公司 | Aluminium section bar Coloured Anodizing technique |
| CN109338351A (en) * | 2018-09-10 | 2019-02-15 | 佛山市保利来建材实业有限公司 | A kind of aluminum veneer Chrome-free pre-treating technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921316A (en) * | 2021-01-20 | 2021-06-08 | 福建省闽发铝业股份有限公司 | Green environment-friendly aluminum profile spraying pretreatment process |
| CN113818023A (en) * | 2021-09-22 | 2021-12-21 | 嘉兴誉品光电科技有限公司 | High-finish-degree LED aluminum frame surface powder spraying pretreatment process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110257838B (en) | 2021-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4009115A (en) | Composition and method for cleaning aluminum at low temperatures | |
| KR850001324B1 (en) | Coating solution for aluminium metal surfaces | |
| US4313769A (en) | Coating solution for metal surfaces | |
| JP5390821B2 (en) | Aluminum wheel surface treatment method and alkaline etching solution | |
| US4124407A (en) | Method for cleaning aluminum at low temperatures | |
| USRE32661E (en) | Cleaning aluminum at low temperatures | |
| JPS59133382A (en) | Deterging and etching process for aluminum case | |
| CN104975280A (en) | Cold-rolled steel sheet passivating treatment method | |
| JPS5811515B2 (en) | Composition for forming a zinc phosphate film on metal surfaces | |
| US4116853A (en) | Composition for cleaning aluminum at low temperatures | |
| US4110129A (en) | Post treatment of conversion-coated zinc surfaces | |
| CN110257838A (en) | Aluminum profile dusts pre-treating technology | |
| USRE31198E (en) | Method for cleaning aluminum at low temperatures | |
| KR20150138254A (en) | Improved trivalent chromium-containing composition for aluminum and aluminum alloys | |
| KR100231390B1 (en) | Acidic cleaning aqueous soultion for aluminium based metal and method for cleaning the same | |
| US4131489A (en) | Chromate conversion composition and method for coating aluminum using low concentrations of chromate, phosphate and fluoride ions | |
| US3888783A (en) | Cleaner for tin plated ferrous metal surfaces, comprising phosphate, silicate and borax | |
| JP2006511698A (en) | Magnesium conversion coating composition and method of using the same | |
| US4950339A (en) | Process of forming phosphate coatings on metals | |
| US20040147422A1 (en) | Cleaner composition for formed metal articles | |
| CA2110364A1 (en) | Metal cleaner composition and method | |
| CA1056702A (en) | Composition and method for cleaning aluminum at low temperatures | |
| JPS6017831B2 (en) | Composition and cleaning method for cleaning metal surfaces | |
| CN109440121A (en) | A kind of processing technology of aluminum veneer | |
| JP2013524022A (en) | Process for substrate pre-treatment and treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |