CN108220966A - A kind of aluminium section bar rapidly and efficiently frosting technology - Google Patents
A kind of aluminium section bar rapidly and efficiently frosting technology Download PDFInfo
- Publication number
- CN108220966A CN108220966A CN201611155273.9A CN201611155273A CN108220966A CN 108220966 A CN108220966 A CN 108220966A CN 201611155273 A CN201611155273 A CN 201611155273A CN 108220966 A CN108220966 A CN 108220966A
- Authority
- CN
- China
- Prior art keywords
- section bar
- aluminium section
- efficiently
- rapidly
- aluminium
- 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.)
- Pending
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
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
Abstract
The present invention relates to a kind of aluminium shape surface process for producing technique more particularly to a kind of aluminium section bar rapidly and efficiently frosting technologies.Rapidly and efficiently frosting technology has the advantages that a kind of aluminium section bar disclosed by the invention：It uses with Na2CO3Alkaline etching agent as main component pre-processes aluminium section bar, and anodic oxidation widens oxidizing temperature range using the sulfuric acid electrolyte for being added to organic acid, accelerates oxidation rate.The surface preparation flow of aluminium section bar is reduced while aluminium section bar sand surface treatment effect is not reduced, reduces aluminium consumption.
Description
Technical field
The present invention relates to a kind of aluminium shape surface process for producing technique more particularly to a kind of aluminium section bar rapidly and efficiently frosted works
Skill.
Background technology
Aluminium section bar when in use, easily corrodes.In order to improve the corrosion resisting property of aluminium shape surface, need to aluminium section bar
It is surface-treated.Existing major part aluminium section bar carries out surface preparation using acid etching, to eliminate metallic luster and surface line
The defects of line.But the hydrogen fluoride environmental pollution in etching agent is bigger.Old-fashioned alkaline etching processing method aluminium consumption is high, alkaline residue
It is more.Chinese invention patent application No. is 20131496880.1 proposes a kind of aluminium section bar frosting technology, to aluminium before pretreatment
Section bar carries out blasting treatment, uses and drives glass sand impact aluminium shape surface with high pressure gas, removes aluminium shape surface metal light
Pool and strain line defect.Although can obtain sand face effect still needs to increase abrasive blast equipment, technological process is complicated, and time-consuming.
Invention content
The present invention overcomes a kind of aluminium section bar rapidly and efficiently frosting technology the shortcomings that the prior art, is provided, do not reducing
The surface preparation flow of aluminium section bar is reduced while aluminium section bar sand surface treatment effect, reduces aluminium consumption.The technology of the present invention
Scheme is as follows：
A kind of aluminium section bar rapidly and efficiently frosting technology, it is characterised in that including step once：
Step 1：Removal surface grease, dirt and autoxidation are reacted in the processing of aluminium section bar alkaline etching using alkaline etching agent with aluminium section bar
Film.Alkaline etching agent is that main component is Na2CO3、NaOH、Na2SO4、Na3PO4, dodecyl sodium sulfate and glycerine.Na2CO3As one
The aluminium surface processing alkaline etching agent that kind reacts mild can be consumed by the way that alkaline etching temperature and time is controlled to lower aluminium, avoid excessive erosion phenomenon
Generation.NaOH can improve corrosive nature of the alkaline etching agent to aluminium section bar, and prevent Na2CO3Absorb the CO in air2Generation
The relatively low sodium bicarbonate precipitation of solubility.Na2SO4To inhibit the dust phenomenon of aluminium shape surface.Na3PO4Aluminium section bar can be flattened
Surface removes mechanical line.
Step 2：Aluminium section bar neutralisation treatment, it is using acid acceptor that the aluminium shape surface by alkaline etching processing is remaining
Lye.
Step 3：Aluminium section bar oxidation processes；Using aluminium section bar as anode be put into the sulfuric acid electrolyte containing additive into
Row electrolytic oxidation generates artificial oxidation's film in aluminium shape surface.The main component of the additive is organic acid and glycerine.
Organic acid and glycerine are added in sulfuric acid electrolyte can effectively reduce the harmful effect of reaction heat effect in anode oxidation process,
The temperature range of oxidation can be widened under conditions of oxide thickness and hardness is not lowered, accelerates the speed of anodic oxidation.
Step 4：Twice water wash procedures.The residual acid remained in aluminium shape surface hole is thoroughly cleaned up.
Step 5：Aluminium section bar sealing pores.The fine pore of oxidation film layer is closed, forms fine and close oxidation film,
Improve the performances such as anti-pollution, against corrosion of anode oxide film.
Preferably, the alkaline etching agent contains Na2CO380~100g/L, NaOH 8~10g/L, Na2SO415~30g/
L, Na3PO420~25g/L, 0.6~1g/L of dodecyl sodium sulfate, 3~10g/L of glycerine.By Na2CO3As being carried in alkaline etching agent
For the main component of alkaline environment, a large amount of aluminium consumption height brought using NaOH can be avoided, reacts violent, be susceptible to excessive erosion
Phenomenon.
Preferably, 55~60 DEG C of pretreatment temperature in the step 1.The too low aluminium of temperature consumes relatively low, dusting effect
Difference, temperature too high alumina consumption excessively high cause the wasting of resources.
Preferably, 10~15min of pretreatment time in the step 1.Reaction time is too short, dusting effect unobvious；
Reaction time extends, and aluminium consumption increases, and is susceptible to excessive erosion.
Preferably, contain H in the sulfuric acid electrolyte in the step 32SO4140~180g/L, 5~8g/ of oxalic acid
L, 5~10g/L of lactic acid, glycerine 3~5g/L, NiSO45~10g/L.Organic acid and glycerine are added in sulfuric acid electrolyte, it can
To improve the operating temperature upper limit of anodic oxidation electrolyte, while weaken the dissolving of oxidation film, contribute to oxidation film generation and
It thickens.Nickel sulfate can improve the conductive capability of sulfuric acid electrolyte, improve the current density of permission, accelerate oxidation rate.
Preferably, the technological parameter of anodized described in the step 3 is：10~40 DEG C of temperature, anode electricity
1~2A/dm of current density2, anode and cathode area ratio 1:2；30~40min of anodized time.Current density is crossed conference and is led
Anodization temperature rise is caused to accelerate, influences film quality.
Preferably, in the step 4 water wash procedures include aluminium section bar being put into the flowing sink of ultrasonic drilling machine into
Row cleans for first and aluminium section bar is put into progress second cleaning in the flowing sink with inflating stirring.The molecule of ultrasonic wave
Vibrating effect is conducive to vibrate out by the sour dirt in gap, inflating stirring formed medium flowing, be conducive to by residual acid band from
Aluminium shape surface.
Preferably, first of cleaning, in a manner that frozen water machine is direct-cooled, temperature is controlled at 3~5 DEG C, is controlled simultaneously
Water electric conductivity is less than 100 μ s/cm, and pH value is more than 3.The intrapore chemical reaction rate of aluminium section bar can be inhibited by reducing temperature,
Ensure the cleannes of water quality simultaneously.Although the residual acid being precipitated in this way has corrosiveness to film layer, because reaction speed is extremely low several
The performance of oxidation film is not interfered with.
Rapidly and efficiently frosting technology has the advantages that a kind of aluminium section bar disclosed by the invention：It uses with Na2CO3For
The alkaline etching agent of main component pre-processes aluminium section bar, and anodic oxidation widens oxygen using the sulfuric acid electrolyte for being added to organic acid
Change temperature range, accelerate oxidation rate.The surface that aluminium section bar is reduced while aluminium section bar sand surface treatment effect is not reduced is pre-
Process flow reduces aluminium consumption.
Specific embodiment
Embodiments of the present invention are described in detail below.A kind of aluminium section bar rapidly and efficiently frosting technology, feature
It is to include the following steps：
Step 1：Removal surface grease, dirt and autoxidation are reacted in the processing of aluminium section bar alkaline etching using alkaline etching agent with aluminium section bar
Film.The ingredient of alkaline etching agent is Na2CO390/L, NaOH 9g/L, Na2SO428g/L, Na3PO420g/L, dodecyl sodium sulfate
0.8g/L, glycerine 8g/L.58 DEG C of pretreatment temperature, pretreatment time 12min.
Step 2：Aluminium section bar neutralisation treatment；It is using acid acceptor that the aluminium shape surface by alkaline etching processing is remaining
Lye；
Step 3：Aluminium section bar oxidation processes；Aluminium section bar is put into as anode in the sulfuric acid electrolyte containing additive and carries out electricity
Solution oxidation generates artificial oxidation's film in aluminium shape surface.Contain H in sulfuric acid electrolyte2SO4160g/L, oxalic acid 6g/L, lactic acid 8g/
L, glycerine 4g/L, NiSO48g/L.Technological parameter is：10~40 DEG C, 1~2A/dm2 of anodic current density of temperature, negative and positive pole-face
Product ratio 1:2；30~40min of anodized time.
Step 4：Twice water wash procedures.It includes to be put into aluminium section bar in the flowing sink of ultrasonic drilling machine and carries out first clearly
It washes and aluminium section bar is put into progress second cleaning in the flowing sink with inflating stirring.First of cleaning is straight using frozen water machine
Cold mode, temperature are controlled at 3~5 DEG C, while water electric conductivity is controlled to be less than 100 μ s/cm, and pH value is more than 3.Step 7：It adopts
It will be in the dusty spray of wood grain thermal transfer to aluminium shape surface with vacuum wood grain film coating technique.
Step 5：Aluminium section bar sealing pores.
It these are only the preferred embodiments of the present invention, but those of ordinary skill in the art can want in appended right
Various deformations or amendments are made in the range of asking.
Claims (8)
1. a kind of aluminium section bar rapidly and efficiently frosting technology, it is characterised in that include the following steps：
Step 1：Removal surface grease, dirt and autoxidation are reacted in the processing of aluminium section bar alkaline etching using alkaline etching agent with aluminium section bar
Film；Alkaline etching agent is that main component is Na2CO3、NaOH、Na2SO4、Na3PO4, dodecyl sodium sulfate and glycerine；
Step 2：Aluminium section bar neutralisation treatment；The remaining lye of aluminium shape surface that will be handled using acid acceptor by alkaline etching；
Step 3：Aluminium section bar oxidation processes；Aluminium section bar is put into as anode in the sulfuric acid electrolyte containing additive and carries out electricity
Solution oxidation generates artificial oxidation's film in aluminium shape surface；The main component of the additive is organic acid and glycerine；
Step 4：Twice water wash procedures；
Step 5：Aluminium section bar sealing pores.
2. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：The alkaline etching agent contains
Na2CO380~100g/L, NaOH 8~10g/L, Na2SO415~30g/L, Na3PO420~25g/L, dodecyl sodium sulfonate
0.6~1g/L of sodium, 3~10g/L of glycerine.
3. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：It is pre- in the step 1
55~60 DEG C for the treatment of temperature.
4. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：It is pre- in the step 1
10~15min of processing time.
5. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：In the step 3
Contain H in the sulfuric acid electrolyte2SO4140~180g/L, 5~8g/L of oxalic acid, 5~10g/L of lactic acid, 3~5g/L of glycerine,
NiSO4 5~10g/L.
6. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：Institute in the step 3
The technological parameter for stating anodized is：10~40 DEG C of temperature, 1~2A/dm of anodic current density2, anode and cathode area ratio
1:2；30~40min of anodized time.
7. a kind of aluminium section bar according to claim 1 rapidly and efficiently frosting technology, it is characterised in that：Water in the step 4
Washing procedure, which includes aluminium section bar being put into the flowing sink of ultrasonic drilling machine, to carry out first of cleaning and is put into aluminium section bar to carry
Second cleaning is carried out in the flowing sink of inflating stirring.
8. a kind of aluminium section bar according to claim 7 rapidly and efficiently frosting technology, it is characterised in that：First of cleaning
In a manner that frozen water machine is direct-cooled, temperature is controlled at 3~5 DEG C, while water electric conductivity is controlled to be less than 100 μ s/cm, and pH value is more than
3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155273.9A CN108220966A (en) | 2016-12-14 | 2016-12-14 | A kind of aluminium section bar rapidly and efficiently frosting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611155273.9A CN108220966A (en) | 2016-12-14 | 2016-12-14 | A kind of aluminium section bar rapidly and efficiently frosting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108220966A true CN108220966A (en) | 2018-06-29 |
Family
ID=62651139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611155273.9A Pending CN108220966A (en) | 2016-12-14 | 2016-12-14 | A kind of aluminium section bar rapidly and efficiently frosting technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108220966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941523A (en) * | 2021-01-26 | 2021-06-11 | 广东华昌铝厂有限公司 | Frosting process for aluminum profile production |
| CN112941526A (en) * | 2021-01-20 | 2021-06-11 | 浙江乔老爷铝业有限公司 | Aluminum profile surface treatment process with low aluminum consumption |
-
2016
- 2016-12-14 CN CN201611155273.9A patent/CN108220966A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112941526A (en) * | 2021-01-20 | 2021-06-11 | 浙江乔老爷铝业有限公司 | Aluminum profile surface treatment process with low aluminum consumption |
| CN112941523A (en) * | 2021-01-26 | 2021-06-11 | 广东华昌铝厂有限公司 | Frosting process for aluminum profile production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103668386B (en) | Al and Alalloy surface treatment method | |
| CN101967674B (en) | A kind of electrolytic polishing process | |
| CN105624764A (en) | Preparation method for micro-arc oxidation of ceramic membrane on magnesium alloy | |
| CN101845662A (en) | Magnesium alloy surface treating method and magnesium alloy polished by same | |
| CN102634805B (en) | Method for preparing magnesium alloy with super-hydrophobic layer on surface | |
| CN106757269A (en) | Aluminium section bar oxide-film method for demoulding and aluminium section bar oxide-film film plating process | |
| CN104562136A (en) | Frosting process for aluminum profile | |
| CN104878390A (en) | Rapid and efficient sanding process for aluminium profile | |
| CN105112978A (en) | Aluminum alloy surface treatment agent and aluminum alloy surface treatment method | |
| CN102965709A (en) | Environmental long-term pre-treatment process for surface anodization of aluminum alloy | |
| CN110607549A (en) | Anti-static hard anodic oxidation process | |
| CN106835236A (en) | A kind of production method for improving section bar corrosion resistance | |
| CN108220966A (en) | A kind of aluminium section bar rapidly and efficiently frosting technology | |
| CN107675193A (en) | A kind of raw material of aluminum alloy preprocess method | |
| CN103834983B (en) | The environment-protecting energy-saving liquor phase plasma cleaning method of shape | |
| CN103590085B (en) | A kind of surface treatment method of bonding wire production aluminum steel axle | |
| CN110093608B (en) | Surface polishing solution for additive manufacturing of aluminum alloy and application | |
| KR100489640B1 (en) | Electrolyte solution for anodizing and corrosion-resisting coating method of magnesium alloy using the same | |
| CN107541740A (en) | A kind of aluminium section bar improves rapidly and efficiently frosting technology | |
| CN107988611A (en) | A kind of aluminium shape surface pre-treating technology | |
| CN114921829A (en) | Anodic oxidation film forming method for aluminum alloy | |
| CN109295483B (en) | Insulation protection method for copper-plated part | |
| CN112267135A (en) | Zinc-nickel alloy electroplating process for vacuum brake booster shell of new energy automobile | |
| CN113235153A (en) | Method for removing carbon deposition on airplane turbine blade through electrolysis | |
| CN105648494A (en) | Wear resistance and corrosion resistance treatment method for surfaces of aluminum base valve parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |