CN109056023A - Sulfuric acid+oxalic acid nitration mixture anode oxidation process - Google Patents
Sulfuric acid+oxalic acid nitration mixture anode oxidation process Download PDFInfo
- Publication number
- CN109056023A CN109056023A CN201810972524.5A CN201810972524A CN109056023A CN 109056023 A CN109056023 A CN 109056023A CN 201810972524 A CN201810972524 A CN 201810972524A CN 109056023 A CN109056023 A CN 109056023A
- Authority
- CN
- China
- Prior art keywords
- anode
- sulfuric acid
- oxalic acid
- acid
- oxidation process
- 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
- 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
- C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
- C25D11/10—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing organic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention belongs to a kind of corrosion resistance Hard Anodic Oxidation Process technical fields.Specifically a kind of sulfuric acid+oxalic acid nitration mixture anode oxidation process, (1) use sulfuric acid+oxalic acid mixing tank liquor, and mesoxalic acid concentration as the main component is 50g/L, and sulfuric acid is that auxiliary ingredients concentration is 2g/L；(2) anodization is carried out to aluminum alloy materials workpiece, controlled at 4-6 DEG C, adjustment current density is 1-3A/dm2, the up-flow time is 5-10min, reaction time 3-4h, it is desirable that film thickness 50-100um；(3) after anode reaches film thickness, using 92-100 DEG C pure water sealing of hole 3-4 hours, obtain have higher rotproofness oxidation film.Sulfuric acid+oxalic acid mixing tank liquor anodized is carried out to aluminum alloy materials workpiece, so that anode surface has sulfuric acid hard anode appearance characteristic, there is oxalic acid anode high corrosion resistance energy again, nitration mixture Hard Anodic Oxidation Process anode has obvious hard anode property, higher thicknesses of layers is obtained, there is higher hardness and corrosion resistance.
Description
Technical field
The invention belongs to corrosion resistance Hard Anodic Oxidation Process technical fields, more particularly to a kind of corrosion resistance hard
Anode oxidation process is suitable for IC and assembles crucial corrosion resistance reaction cavity hard anodic process.
Background technique
Corrosion resistance Hard Anodic Oxidation Process has its special importance.Hard anodic process is due to its property
Have a wide range of applications in the industrial production, in the field IC to hard anodic process performance will gas it is higher and higher, especially anode film
Corrosion resistance, be widely applied with key reaction cavity and other key components and parts, exploitation have compared with highly corrosion resistant hard
Anode, improves equipment performance and service life is significant.
Summary of the invention
For the above technical problems, the present invention provides a kind of sulfuric acid+oxalic acid nitration mixture Hard Anodic Oxidation Process, right
Aluminum alloy materials workpiece carries out anodized in sulfuric acid+oxalic acid mix acid liquor, passes through two kinds of acid in control anodic process
Ratio, reaction temperature and current density etc..To obtain fine and close oxidation film, there is sulfuric acid hard anode appearance characteristic, again
With oxalic acid anode high corrosion resistance energy.
The purpose of the present invention is achieved through the following technical solutions:
A kind of sulfuric acid+oxalic acid nitration mixture anode oxidation process,
(1) sulfuric acid+oxalic acid mixing tank liquor is used, mesoxalic acid concentration as the main component is 50g/L, and sulfuric acid is auxiliary ingredients
Concentration is 2g/L；
(2) anodization is carried out to aluminum alloy materials workpiece, controlled at 4-6 DEG C, adjustment current density is 1-3A/dm2,
The up-flow time is 5-10min, reaction time 3-4h, it is desirable that film thickness 50-100um；
(3) after anode reaches film thickness, using 92-100 DEG C pure water sealing of hole 3-4 hours, obtain have higher rotproofness oxidation
Film.With sulfuric acid hard anode appearance characteristic, and there is oxalic acid anode high corrosion resistance energy.
The invention has the advantages that
The present invention carries out sulfuric acid+oxalic acid mixing tank liquor anodized to aluminum alloy materials workpiece, passes through two kinds of control
The ratio of acid so that anode surface has sulfuric acid hard anode appearance characteristic, and has oxalic acid anode high corrosion resistance energy, leads to
It crosses and continuously attempts to, nitration mixture Hard Anodic Oxidation Process anode has obvious hard anode property, obtains higher thicknesses of layers, has
There are higher hardness and corrosion resistance.
Specific embodiment
Below with reference to embodiment, the present invention will be described in detail.
A kind of sulfuric acid+oxalic acid nitration mixture anode oxidation process,
(1) sulfuric acid+oxalic acid mixing tank liquor is used, mesoxalic acid concentration as the main component is 50g/L, and sulfuric acid is auxiliary ingredients
Concentration is 2g/L；
(2) anodization is carried out to aluminum alloy materials workpiece, controlled at 4-6 DEG C, adjustment current density is 1-3A/dm2,
The up-flow time is 5-10min, reaction time 3-4h, it is desirable that film thickness 50-100um；
(3) after anode reaches film thickness, using 92-100 DEG C pure water sealing of hole 3-4 hours, obtain have higher rotproofness oxidation
Film.With sulfuric acid hard anode appearance characteristic, and there is oxalic acid anode high corrosion resistance energy.
The present invention can effectively improve the anode film of the corrosion resistance of workpiece, using the hydrochloric acid solution of 5%wt through row
Bubble Test, i.e., be adhered to strip using sealing water is hidden for glass tube, and test 5%wt salt is added in glass tube
Acid solution liquid level high 2-3cm continuously emits three or more bubbles at test zone solution same o'clock in one second, represents test knot
Beam, record end time.The corrosion resistance sulfuric acid Hard Anodic Oxidation Process test piece corrosion resistance testing time reaches 8h or more.
Film hardness can reach 400HV, and color difference range is in 40 >=L >=25；1≥a≥-1；6 >=b >=0, it is hard with common sulfuric acid
Matter anodic oxidation is identical.
Embodiment
The present invention includes the following steps: that aluminum alloy materials workpiece is carried out anode pre-treatment, first polishing grinding workpiece by (1)
Surface, it is desirable that Ra < 16uin after cleaning up, carries out anode pre-treatment and removes surface impurity.
(2) hard anodizing processing is carried out to workpiece, is 50g/L by workpiece oxalic acid concentration as the main component, sulfuric acid is
Auxiliary ingredients concentration is 2g/L mixed solution, and controlled at 4-6 DEG C, adjustment current density is 1-3A/dm2, up-flow the time be
5-10min, it is desirable that film thickness 80-100um.
(3) workpiece is subjected to sealing pores, the good workpiece of anode is put into 92-100 DEG C of pure water through row sealing of hole, when sealing of hole
Between be 3-4 hours.It is dried up using compressed air, static 24 hours.Obtain that there is higher rotproofness oxidation film.
Claims (2)
1. a kind of sulfuric acid+oxalic acid nitration mixture anode oxidation process, it is characterised in that:
(1) sulfuric acid+oxalic acid mixing tank liquor is used, mesoxalic acid concentration as the main component is 50g/L, and sulfuric acid is auxiliary ingredients concentration
For 2g/L；
(2) anodization is carried out to aluminum alloy materials workpiece, controlled at 4-6 DEG C, adjustment current density is 1-3A/dm2, up-flow
Time is 5-10min, reaction time 3-4h, it is desirable that film thickness 50-100um；
(3) after anode reaches film thickness, using 92-100 DEG C pure water sealing of hole 3-4 hours, obtain have higher rotproofness oxidation film.
2. sulfuric acid as described in claim 1+oxalic acid nitration mixture Hard Anodic Oxidation Process, it is characterised in that: have sulfuric acid hard sun
Pole appearance characteristics, and there is oxalic acid anode high corrosion resistance energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972524.5A CN109056023A (en) | 2018-08-24 | 2018-08-24 | Sulfuric acid+oxalic acid nitration mixture anode oxidation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810972524.5A CN109056023A (en) | 2018-08-24 | 2018-08-24 | Sulfuric acid+oxalic acid nitration mixture anode oxidation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109056023A true CN109056023A (en) | 2018-12-21 |
Family
ID=64756877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810972524.5A Pending CN109056023A (en) | 2018-08-24 | 2018-08-24 | Sulfuric acid+oxalic acid nitration mixture anode oxidation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109056023A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110541181A (en) * | 2019-09-10 | 2019-12-06 | 中国计量大学 | Preparation method of aluminum alloy surface thermal control coating |
| CN110607549A (en) * | 2019-08-20 | 2019-12-24 | 帝京半导体科技(苏州)有限公司 | Anti-static hard anodic oxidation process |
| CN111893538A (en) * | 2020-07-02 | 2020-11-06 | 中国航发贵州红林航空动力控制科技有限公司 | Hard anodizing process method for 3D printing forming AlSi10Mg aluminum alloy material |
| CN113106517A (en) * | 2021-04-09 | 2021-07-13 | 维沃移动通信(重庆)有限公司 | Preparation method of decorative ring, decorative ring and electronic equipment |
| CN114108051A (en) * | 2021-12-24 | 2022-03-01 | 靖江先锋半导体科技有限公司 | Corrosion-resistant mixed acid anodic oxidation process |
| CN114717628A (en) * | 2022-04-14 | 2022-07-08 | 广东江丰电子材料有限公司 | Preparation method of anodic oxide film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887151A (en) * | 2016-05-23 | 2016-08-24 | 沈阳富创精密设备有限公司 | Corrosion resistance sulfuric acid hard anodizing process |
| CN107641826A (en) * | 2016-07-21 | 2018-01-30 | 富泰华精密电子（济源）有限公司 | Aluminium alloy anode oxide method |
| CN108193250A (en) * | 2018-02-24 | 2018-06-22 | 沈阳富创精密设备有限公司 | A kind of sulfuric acid+nitration mixture mixing anode oxidation process |
-
2018
- 2018-08-24 CN CN201810972524.5A patent/CN109056023A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887151A (en) * | 2016-05-23 | 2016-08-24 | 沈阳富创精密设备有限公司 | Corrosion resistance sulfuric acid hard anodizing process |
| CN107641826A (en) * | 2016-07-21 | 2018-01-30 | 富泰华精密电子（济源）有限公司 | Aluminium alloy anode oxide method |
| CN108193250A (en) * | 2018-02-24 | 2018-06-22 | 沈阳富创精密设备有限公司 | A kind of sulfuric acid+nitration mixture mixing anode oxidation process |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607549A (en) * | 2019-08-20 | 2019-12-24 | 帝京半导体科技(苏州)有限公司 | Anti-static hard anodic oxidation process |
| CN110541181A (en) * | 2019-09-10 | 2019-12-06 | 中国计量大学 | Preparation method of aluminum alloy surface thermal control coating |
| CN110541181B (en) * | 2019-09-10 | 2021-05-18 | 中国计量大学 | Preparation method of aluminum alloy surface thermal control coating |
| CN111893538A (en) * | 2020-07-02 | 2020-11-06 | 中国航发贵州红林航空动力控制科技有限公司 | Hard anodizing process method for 3D printing forming AlSi10Mg aluminum alloy material |
| CN113106517A (en) * | 2021-04-09 | 2021-07-13 | 维沃移动通信(重庆)有限公司 | Preparation method of decorative ring, decorative ring and electronic equipment |
| CN114108051A (en) * | 2021-12-24 | 2022-03-01 | 靖江先锋半导体科技有限公司 | Corrosion-resistant mixed acid anodic oxidation process |
| CN114717628A (en) * | 2022-04-14 | 2022-07-08 | 广东江丰电子材料有限公司 | Preparation method of anodic oxide film |
| CN114717628B (en) * | 2022-04-14 | 2023-11-07 | 广东江丰电子材料有限公司 | Preparation method of anodic oxide film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109056023A (en) | Sulfuric acid+oxalic acid nitration mixture anode oxidation process | |
| RU2588894C2 (en) | Bath for electroplating of copper-nickel alloy and procedure for application of galvanic coating | |
| CN107855254B (en) | Preparation method of corrosion-resistant organic composite coating on surface of magnesium alloy | |
| CN108193250A (en) | A kind of sulfuric acid+nitration mixture mixing anode oxidation process | |
| CN110724992B (en) | Method for preparing corrosion-resistant super-hydrophobic film on surface of aluminum alloy | |
| CN105887151A (en) | Corrosion resistance sulfuric acid hard anodizing process | |
| CN103789808A (en) | Aluminum alloy surface treatment method and aluminum product | |
| CN101665970A (en) | Normal-temperature sealer for anodic oxide film of aluminum and aluminum alloy and sealing method thereof | |
| CN105239133A (en) | Titanium and titanium alloy surface anodic oxidation coloring method | |
| CN105297082A (en) | Method for preparing super-hydrophobic film layers on metal surfaces through one-step method | |
| TWI652378B (en) | Copper-nickel alloy plating bath | |
| CN1412352A (en) | Method and application for aluminium electrolytic polishing | |
| CN108315783B (en) | In the method for aluminium surface plating flexible metal manganese | |
| KR100696000B1 (en) | A composite of anodizing electrolyte for alloyedaluminum | |
| CN114318465A (en) | Micro-arc oxidation preparation method of black surface of 7-series aluminum alloy | |
| CN103556164B (en) | A kind of obstacles in quit of titanium aluminium chromium nitride hard reaction film | |
| KR101872436B1 (en) | Surface treated method for enhancing acid-resistance and alkali-resistance of aluminum series matter and aluminum series matter by manufacturing the same | |
| CN108360038B (en) | Corrosion-resistant aluminum alloy profile and preparation method thereof | |
| KR100489640B1 (en) | Electrolyte solution for anodizing and corrosion-resisting coating method of magnesium alloy using the same | |
| CN105543937A (en) | Electrolytic passivation solution for stainless steel cookware and passivation technique thereof | |
| US2666023A (en) | Anodic coating of aluminum | |
| CN114921829A (en) | Anodic oxidation film forming method for aluminum alloy | |
| CN105648494B (en) | A kind of wear resistant corrosion resistant processing method of aluminium base valve type piece surface | |
| CN111235558B (en) | Wear-resistant corrosion-resistant aluminum-based composite material and preparation method thereof | |
| EP3412799A1 (en) | Compositionally modulated zinc-iron multilayered coatings |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181221 |