CN105442018A - Conductive oxidation process for automobile aluminum alloy parts - Google Patents
Conductive oxidation process for automobile aluminum alloy parts Download PDFInfo
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- CN105442018A CN105442018A CN201510700770.1A CN201510700770A CN105442018A CN 105442018 A CN105442018 A CN 105442018A CN 201510700770 A CN201510700770 A CN 201510700770A CN 105442018 A CN105442018 A CN 105442018A
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- workpiece
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- degree celsius
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- 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
- C25D11/12—Anodising more than once, e.g. in different baths
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- 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
- C25D11/16—Pretreatment, e.g. desmutting
Abstract
The invention discloses a conductive oxidation process for automobile aluminum alloy parts, which comprises the steps of deoiling, cleaning with clear water for multiple times, cleaning with acid, conducting oxidation, drying and storing. The method comprises the steps of firstly removing oil from an aluminum alloy workpiece, cleaning the aluminum alloy workpiece with flowing clear water for multiple times, carrying out primary surface treatment by using acid, and carrying out oxidation treatment by passing through an oxidation tank for multiple times, so that the corrosion resistance and the wear resistance of the aluminum alloy workpiece are enhanced, a good coating film layer is formed on the surface of the workpiece, the paint spraying adhesive force is good, the corrosion resistance effect is good, an oxidant after treatment is pollution-free and environment-friendly, and the raw materials are simple and low in cost.
Description
Technical field
The present invention relates to alloy oxidation technique, particularly relate to aluminium alloy car part electric conductive oxidation technique.
Background technology
Aluminium alloy as a kind of Industrial materials of widespread use, because having high-strength and high ductility, the high characteristic such as easier than strong Gao Bimo, heat-proof corrosion-resistant, machine-shaping and be subject to the extensive concern of multiple industry as aerospace, automobile, refrigeration industry, precision instrument etc.Because the surface hardness of aluminium alloy is low, be easily worn, therefore, after the machine-shaping of aluminium part, often require to carry out surface treatment.In prior art, modal surface treatment is the chemical oxidation treatment using oxidation treatment solution.Associativity between the rete that prior art treatment soln is formed and aluminium substrate is not ideal enough, thus, when using this treatment soln to carry out oxide treatment, needs to carry out strict control to processing condition etc., adds operation easier and have impact on production efficiency.
Summary of the invention
The object of this invention is to provide aluminium alloy car part electric conductive oxidation technique, in order to overcome the deficiencies in the prior art, after oxide treatment, the wear-resisting and corrosion resistance and good of rete.
For solving technical problem described in background technology, the present invention by the following technical solutions:
Aluminium alloy car part electric conductive oxidation technique, is characterized in that comprising following operation steps:
1) deoil: first organic solvent is carried out to workpiece, chemical solvents deoils;
2) clean: then workpiece is put into the cleaning of flowing Rinsing Area, by workpiece cleaning 10-15s in flowing Rinsing Area, water temperature is 20-27 degree Celsius,
3) acid adding cleaning: put in nitric acid by workpiece and soak 3-5s, temperature is 25-27 degree Celsius, then workpiece is put into flowing Rinsing Area in repeat clean 10-15s;
4) electric conductive oxidation technique:
The first step puts into energising oxidation pond one, and control PH is 1.2-1.6, and soak time is 1-5min, and temperature is 35-40 degree Celsius;
Second step puts into energising oxidation pond two, and control PH is 1.5-2, and soak time is 3-5min, and soaking temperature is 25-45 degree Celsius;
3rd step puts into energising oxidation pond three, and control temperature is 20-25 degree Celsius, and soak time is 3-5min;
5) recovery and rinsing: the workpiece after oxidation is put in the flowing Rinsing Area of 20-25 degree Celsius and cleaned 10-15s, then to put into water temperature be by workpiece cleaning 10-15s in the flowing hot water tank of 70-95 degree Celsius;
6) drying and processing: workpiece being put into temperature is carry out drying and processing in the baking oven of 80-95 degree Celsius, until workpiece surface colour is by evenly pale yellow to dark yellow-green, or workpiece surface presents iris;
7) store: under putting into dry environment, carry out piling preservation.
Preferably, the solution formula in described oxidation pond one is: potassium bichromate 3-3.5g/l, chromic anhydride 3.5-4g/l, Sodium Fluoride 0.5-0.8g/l.
Preferably, the solution formula in described oxidation pond two is: chromic anhydride 10-20g/l, Sodium Fluoride 3-6g/l, water glass 4-8g/l.
Preferably, the solution formula in described oxidation pond three is: sodium dichromate 99 3.5g/l, chromic anhydride 4g/l, Sodium Fluoride 0.8g/l.
The invention has the beneficial effects as follows: first Al alloy parts is deoiled process, again after the clean water that repeatedly flows, preliminary surface process is carried out with acid, again through the oxidation pond oxide treatment that is repeatedly energized, the anticorrosion and wear resistance of Al alloy parts is strengthened, forms good coating rete at workpiece surface, the sticking power that sprays paint is good, favorable anti-corrosion effect, the agent of process rear oxidation is pollution-free and environmental protection, and raw material is simple and cost is low.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, will be further detailed the present invention below.
In a kind of embodiment, aluminium alloy car part electric conductive oxidation technique provided by the invention, is characterized in that comprising following operation steps:
1) deoil: first organic solvent is carried out to workpiece, chemical solvents deoils;
2) clean: then workpiece is put into the cleaning of flowing Rinsing Area, by workpiece cleaning 10s in flowing Rinsing Area, water temperature is 20 degrees Celsius,
3) acid adding cleaning: put in nitric acid by workpiece and soak 3s, temperature is 25 degrees Celsius, then workpiece is put into flowing Rinsing Area in repeat clean 10s;
4) electric conductive oxidation technique:
The first step puts into energising oxidation pond one, and control PH is 1.2, and soak time is 1min, and temperature is 35 degrees Celsius;
Second step puts into energising oxidation pond two, and control PH is 1.5, and soak time is 3min, and soaking temperature is 25 degrees Celsius;
3rd step puts into energising oxidation pond three, and control temperature is 20 degrees Celsius, and soak time is 3min;
5) recovery and rinsing: the workpiece after oxidation is put in the flowing Rinsing Area of 20 degrees Celsius and cleaned 10s, then to put into water temperature be by workpiece cleaning 10s in the flowing hot water tank of 70 degrees Celsius;
6) drying and processing: workpiece being put into temperature is carry out drying and processing in the baking oven of 80 degrees Celsius, until workpiece surface colour is by evenly pale yellow to dark yellow-green, or workpiece surface presents iris;
7) store: under putting into dry environment, carry out piling preservation.
Preferably, the solution formula in described oxidation pond one is: potassium bichromate 3g/l, chromic anhydride 3.5g/l, Sodium Fluoride 0.5g/l.
Preferably, the solution formula in described oxidation pond two is: chromic anhydride 10g/l, Sodium Fluoride 3g/l, water glass 4g/l.
Preferably, the solution formula in described oxidation pond three is: sodium dichromate 99 3.5g/l, chromic anhydride 4g/l, Sodium Fluoride 0.8g/l.
Embodiment two
Aluminium alloy car part electric conductive oxidation technique, is characterized in that comprising following operation steps:
1) deoil: first organic solvent is carried out to workpiece, chemical solvents deoils;
2) clean: then workpiece is put into the cleaning of flowing Rinsing Area, by workpiece cleaning 15s in flowing Rinsing Area, water temperature is 27 degrees Celsius,
3) acid adding cleaning: put in nitric acid by workpiece and soak 5s, temperature is 27 degrees Celsius, then workpiece is put into flowing Rinsing Area in repeat clean 15s;
4) electric conductive oxidation technique:
The first step puts into energising oxidation pond one, and control PH is 1.6, and soak time is 5min, and temperature is 40 degrees Celsius;
Second step puts into energising oxidation pond two, and control PH is 2, and soak time is 5min, and soaking temperature is 45 degrees Celsius;
3rd step puts into energising oxidation pond three, and control temperature is 25 degrees Celsius, and soak time is 5min;
5) recovery and rinsing: the workpiece after oxidation is put in the flowing Rinsing Area of 25 degrees Celsius and cleaned 15s, then to put into water temperature be by workpiece cleaning 15s in the flowing hot water tank of 95 degrees Celsius;
6) drying and processing: workpiece being put into temperature is carry out drying and processing in the baking oven of 95 degrees Celsius, until workpiece surface colour is by evenly pale yellow to dark yellow-green, or workpiece surface presents iris;
7) store: under putting into dry environment, carry out piling preservation.
Preferably, the solution formula in described oxidation pond one is: potassium bichromate 3.5g/l, chromic anhydride 3.5-4g/l, Sodium Fluoride 0.5-0.8g/l.
Preferably, the solution formula in described oxidation pond two is: chromic anhydride 20g/l, Sodium Fluoride 6g/l, water glass 8g/l.
Preferably, the solution formula in described oxidation pond three is: sodium dichromate 99 3.5g/l, chromic anhydride 4g/l, Sodium Fluoride 0.8g/l.
Embodiment three
Aluminium alloy car part electric conductive oxidation technique, is characterized in that comprising following operation steps:
1) deoil: first organic solvent is carried out to workpiece, chemical solvents deoils;
2) clean: then workpiece is put into the cleaning of flowing Rinsing Area, by workpiece cleaning 12s in flowing Rinsing Area, water temperature is 25 degrees Celsius,
3) acid adding cleaning: put in nitric acid by workpiece and soak 5s, temperature is 27 degrees Celsius, then workpiece is put into flowing Rinsing Area in repeat clean 12s;
4) electric conductive oxidation technique:
The first step puts into energising oxidation pond one, and control PH is 1.6, and soak time is 5min, and temperature is 37 degrees Celsius;
Second step puts into energising oxidation pond two, and control PH is 1.7, and soak time is 5min, and soaking temperature is 45 degrees Celsius;
3rd step puts into energising oxidation pond three, and control temperature is 23 degrees Celsius, and soak time is 4min;
5) recovery and rinsing: the workpiece after oxidation is put in the flowing Rinsing Area of 24 degrees Celsius and cleaned 12s, then to put into water temperature be by workpiece cleaning 12s in the flowing hot water tank of 90 degrees Celsius;
6) drying and processing: workpiece being put into temperature is carry out drying and processing in the baking oven of 90 degrees Celsius, until workpiece surface colour is by evenly pale yellow to dark yellow-green, or workpiece surface presents iris;
7) store: under putting into dry environment, carry out piling preservation.
Preferably, the solution formula in described oxidation pond one is: potassium bichromate 3.2g/l, chromic anhydride 4g/l, Sodium Fluoride 0.7g/l.
Preferably, the solution formula in described oxidation pond two is: chromic anhydride 15g/l, Sodium Fluoride 5g/l, water glass 6g/l.
Preferably, the solution formula in described oxidation pond three is: sodium dichromate 99 3.5g/l, chromic anhydride 4g/l, Sodium Fluoride 0.8g/l.
Mode above only by illustrating describes some one exemplary embodiment of the present invention, undoubtedly, for those of ordinary skill in the art, when without departing from the spirit and scope of the present invention, can revise described embodiment by various different mode.Therefore, being described in is illustrative in essence, should not be construed as the restriction to the claims in the present invention protection domain.
Claims (4)
1. aluminium alloy car part electric conductive oxidation technique, is characterized in that comprising following operation steps:
1) deoil: first organic solvent is carried out to workpiece, chemical solvents deoils;
2) clean: then workpiece is put into the cleaning of flowing Rinsing Area, by workpiece cleaning 10-15s in flowing Rinsing Area, water temperature is 20-27 degree Celsius;
3) acid adding cleaning: put in nitric acid by workpiece and soak 3-5s, temperature is 25-27 degree Celsius, then workpiece is put into flowing Rinsing Area in repeat clean 10-15s;
4) electric conductive oxidation technique: the first step puts into energising oxidation pond one, and control PH is 1.2-1.6, and soak time is 1-5min, and temperature is 35-40 degree Celsius;
Second step puts into energising oxidation pond two, and control PH is 1.5-2, and soak time is 3-5min, and soaking temperature is 25-45 degree Celsius;
3rd step puts into energising oxidation pond three, and control temperature is 20-25 degree Celsius, and soak time is 3-5min;
5) recovery and rinsing: the workpiece after oxidation is put in the flowing Rinsing Area of 20-25 degree Celsius and cleaned 10-15s, then to put into water temperature be by workpiece cleaning 10-15s in the flowing hot water tank of 70-95 degree Celsius;
6) drying and processing: workpiece being put into temperature is carry out drying and processing in the baking oven of 80-95 degree Celsius, until workpiece surface colour is by evenly pale yellow to dark yellow-green, or workpiece surface presents iris;
7) store: under putting into dry environment, carry out piling preservation.
2. aluminium alloy car part electric conductive oxidation technique according to claim 1, is characterized in that: the solution formula in described oxidation pond one is: potassium bichromate 3-3.5g/l, chromic anhydride 3.5-4g/l, Sodium Fluoride 0.5-0.8g/l.
3. aluminium alloy car part electric conductive oxidation technique according to claim 1, is characterized in that: the solution formula in described oxidation pond two is: chromic anhydride 10-20g/l, Sodium Fluoride 3-6g/l, water glass 4-8g/l.
4. aluminium alloy car part electric conductive oxidation technique according to claim 1, is characterized in that: the solution formula in described oxidation pond three is: sodium dichromate 99 3.5g/l, chromic anhydride 4g/l, Sodium Fluoride 0.8g/l.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510700770.1A CN105442018B (en) | 2015-10-26 | 2015-10-26 | Conductive oxidation process for automobile aluminum alloy parts |
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| CN201510700770.1A CN105442018B (en) | 2015-10-26 | 2015-10-26 | Conductive oxidation process for automobile aluminum alloy parts |
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| CN105442018B CN105442018B (en) | 2018-08-14 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244968A (en) * | 2016-08-30 | 2016-12-21 | 广东通宇通讯股份有限公司 | A kind of antenna phasing unit aluminium section bar housing surface arc spray process and aluminium section bar cavity |
| CN107557837A (en) * | 2017-08-18 | 2018-01-09 | 浙江英伦汽车有限公司 | Car body of aluminum alloy component is glued front surface processing technology, car body of aluminum alloy component, bodywork component connection method, vehicle body and automobile |
| CN107740084A (en) * | 2017-09-30 | 2018-02-27 | 中国科学院长春光学精密机械与物理研究所 | A kind of beryllium alumin(i)um alloy and preparation method thereof |
| CN108300987A (en) * | 2018-01-05 | 2018-07-20 | 佛山力邦通信设备科技有限公司 | A kind of aluminium alloy iris electric conductive oxidation technique |
| CN110923777A (en) * | 2019-09-10 | 2020-03-27 | 西北稀有金属材料研究院宁夏有限公司 | Method for conducting oxidation on surface of beryllium-aluminum alloy |
| CN114481111A (en) * | 2022-01-18 | 2022-05-13 | 深圳市飞航精工科技有限公司 | Rainbow color conductive oxidation method and oxidation liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463476A (en) * | 2009-01-14 | 2009-06-24 | 蔡乐勤 | Aluminum alloy oxidation treatment solution and oxidation technology thereof |
| CN103014807A (en) * | 2011-09-21 | 2013-04-03 | 孙健 | Aluminum material surface hardening and corrosion prevention technology |
| US20150255253A1 (en) * | 2012-10-17 | 2015-09-10 | Constellium France | Vacuum chamber elements made of aluminum alloy |
-
2015
- 2015-10-26 CN CN201510700770.1A patent/CN105442018B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463476A (en) * | 2009-01-14 | 2009-06-24 | 蔡乐勤 | Aluminum alloy oxidation treatment solution and oxidation technology thereof |
| CN103014807A (en) * | 2011-09-21 | 2013-04-03 | 孙健 | Aluminum material surface hardening and corrosion prevention technology |
| US20150255253A1 (en) * | 2012-10-17 | 2015-09-10 | Constellium France | Vacuum chamber elements made of aluminum alloy |
Non-Patent Citations (1)
| Title |
|---|
| 储荣邦等: "铝及其合金化学导电氧化生产工艺介绍 I、II、III、IV", 《材料保护》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244968A (en) * | 2016-08-30 | 2016-12-21 | 广东通宇通讯股份有限公司 | A kind of antenna phasing unit aluminium section bar housing surface arc spray process and aluminium section bar cavity |
| CN107557837A (en) * | 2017-08-18 | 2018-01-09 | 浙江英伦汽车有限公司 | Car body of aluminum alloy component is glued front surface processing technology, car body of aluminum alloy component, bodywork component connection method, vehicle body and automobile |
| CN107740084A (en) * | 2017-09-30 | 2018-02-27 | 中国科学院长春光学精密机械与物理研究所 | A kind of beryllium alumin(i)um alloy and preparation method thereof |
| CN108300987A (en) * | 2018-01-05 | 2018-07-20 | 佛山力邦通信设备科技有限公司 | A kind of aluminium alloy iris electric conductive oxidation technique |
| CN110923777A (en) * | 2019-09-10 | 2020-03-27 | 西北稀有金属材料研究院宁夏有限公司 | Method for conducting oxidation on surface of beryllium-aluminum alloy |
| CN114481111A (en) * | 2022-01-18 | 2022-05-13 | 深圳市飞航精工科技有限公司 | Rainbow color conductive oxidation method and oxidation liquid |
| CN114481111B (en) * | 2022-01-18 | 2023-09-29 | 深圳市飞航精工科技有限公司 | Iridescent conductive oxidation method and oxidation liquid |
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| CN105442018B (en) | 2018-08-14 |
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Effective date of registration: 20220516 Address after: 237000 south of Qianjin Road and east of jingsan North Road, Lu'an economic and Technological Development Zone, Anhui Province (in Anhui Bowei Chang'an Electronics Co., Ltd.) Patentee after: Anhui Bowei Chang'an Electronics Co.,Ltd. special purpose vehicle manufacturing branch Address before: 237000 south of Qianjin Road and east of jingsan North Road, Lu'an Economic Development Zone, Anhui Province Patentee before: ANHUI CHANG'AN SPECIAL PURPOSE AUTOMOBILE MANUFACTURING Co.,Ltd. |
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Effective date of registration: 20221116 Address after: 237101 WenWeng Road, economic development zone, Lu'an City, Anhui Province Patentee after: ANHUI BOWEI CHANGAN ELECTRONICS Co.,Ltd. Address before: 237000 south of Qianjin Road and east of jingsan North Road, Lu'an economic and Technological Development Zone, Anhui Province (in Anhui Bowei Chang'an Electronics Co., Ltd.) Patentee before: Anhui Bowei Chang'an Electronics Co.,Ltd. special purpose vehicle manufacturing branch |