CN106676529B - A kind of 1060 aluminum alloy basification optical polishing method and its basic chemical polishing liquid of use - Google Patents
A kind of 1060 aluminum alloy basification optical polishing method and its basic chemical polishing liquid of use Download PDFInfo
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- CN106676529B CN106676529B CN201710104706.6A CN201710104706A CN106676529B CN 106676529 B CN106676529 B CN 106676529B CN 201710104706 A CN201710104706 A CN 201710104706A CN 106676529 B CN106676529 B CN 106676529B
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- chemical polishing
- polishing liquid
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23F3/00—Brightening metals by chemical means
- C23F3/02—Light metals
Abstract
The invention discloses a kind of 1060 aluminum alloy basification optical polishing methods and its basic chemical polishing liquid of use, and method includes: that aluminium and/or aluminium alloy are put into dehydrated alcohol to pre-process, and is then washed with deionized water；Pretreated aluminium and/or aluminium alloy are put into basic chemical polishing liquid and carry out basic chemical polishing；By after polishing aluminium and/or aluminium alloy be sequentially placed into dust technology neutralized, be put into deionized water carry out 5~15min of ultrasonic cleaning, take out drying.Basic chemical polishing liquid is the aqueous solution being grouped as by the group of following concentration: sodium hydroxide 250g/L；Sodium nitrate 150g/L；Sodium acetate 250g/L；Sodium bromate 75g/L；Sodium fluoride 15g/L；Zinc sulfate 2g/L.Basic chemical polishing method of the invention is not only environmentally friendly, and polish after aluminum alloy surface brightness and flatness it is preferable.
Description
The application is application No. is 201510143972.0, and the applying date is on March 30th, 2015, and invention and created name is
The divisional application of the application for a patent for invention of " basic chemical polishing method and its basic chemical polishing liquid of use ".
Technical field
The invention belongs to field of metal surface treatment technology, and in particular to a kind of basic chemical polishing method and its use
Basic chemical polishing liquid.
Background technique
The method polished to aluminium and aluminum alloy surface mainly includes Mechanical Method, electrochemical process and chemical method.It is mechanical
Polishing and electrochemical polish have certain requirement due to the shapes and sizes to part, using being subject to certain restrictions.And
Chemical polishing is not limited then by the shape of part, size, and can disposably handle more part, therefore, be at present most
Common polishing method.
And existing chemically polishing method mainly or using acidic chemical polishing liquid (containing phosphoric acid, sulfuric acid and nitric acid,
It is commonly called as three acid polishing liquid), the advantages of acidic chemical polishing liquid is: polishing effect is preferable, and the piece surface after polishing is bright, flat
It is whole；Disadvantage is then: a large amount of NOx gas can be generated in polishing process, environmental pollution is serious.
Chinese patent literature CN102925900A discloses a kind of basic chemical polishing liquid, it is by 150~280g/L
Sodium hydroxide, the sodium nitrite of 100~150g/L, the sodium fluoride of 1~1.2g/L, the sodium phosphate of 10~20g/L and surplus
Water composition.Chinese patent literature CN103668228A also discloses a kind of basic chemical polishing solution, it is by 180~200g/L
Sodium hydroxide, the sodium nitrite of 145~180g/L, the sodium nitrate of 155~200g/L, 100~150g/L tertiary sodium phosphate with
And the water composition of surplus.
Above two basic chemical polishing liquid and acidic chemical polishing liquid phase ratio, advantage are: environmentally friendly；Disadvantage is then
Be: for polishing effect not as good as acidic chemical polishing liquid, the aluminum alloy surface brightness and flatness after especially polishing are poor.
Japanese documentation JPS5845380A discloses a kind of basic chemical polishing liquid, it is by sodium hydroxide, nitrous acid
Sodium, sodium nitrate, sodium phosphate, heavy metallic salt and silicide composition.The document is by being added heavy metallic salt to improve product surface
Brightness, but flatness is still bad, and product surface has " dotted vesicle " or " pork skin shape " defect.
Chinese patent literature CN1031574A discloses a kind of aluminium and aluminum alloy basification optical polishing solution, it is by hydrogen-oxygen
Change sodium, sodium nitrate, heavy metallic salt, pyrophosphate or hexametaphosphate or metavanadate composition.The document is by being added pyrophosphoric acid
Salt or hexametaphosphate are used cooperatively with heavy metallic salt, to both improve brightness, also improve flatness.But pyrophosphoric acid
The addition of salt and hexametaphosphate is still unfriendly to environment.
Summary of the invention
It is an object of the present invention to solving above-mentioned technical problem, provides a kind of not only environmentally friendly but also can make to throw
The preferable basic chemical polishing method of aluminum alloy surface brightness and flatness after light.
Another object of the present invention is to provide the basic chemical polishing liquid that the above method uses.
Realizing the technical solution of one of the object of the invention is: a kind of basic chemical polishing method has follow steps: 1. will
Aluminium and/or aluminium alloy, which are put into dehydrated alcohol, to be pre-processed, and is then washed with deionized water；2. by pretreated aluminium
And/or aluminium alloy is put into basic chemical polishing liquid, 30~80 DEG C at a temperature of carry out 5~20s of basic chemical polishing；Institute
The basic chemical polishing liquid stated is the aqueous solution being grouped as by the group of following concentration: 100~500g/L of sodium hydroxide, sodium nitrate 50
~200g/L, 100~500g/L of sodium acetate, 10~150g/L of sodium bromate, 5~20g/L of sodium fluoride, the sulfate 0.1 of heavy metal
~4g/L；3. by after polishing aluminium and/or aluminium alloy be sequentially placed into dust technology neutralized, be put into deionized water into
5~15min of row ultrasonic cleaning, drying is taken out.
The aqueous solution that the basic chemical polishing liquid is preferably grouped as by the group of following concentration: sodium hydroxide 150~
300g/L, 75~175g/L of sodium nitrate, 150~300g/L of sodium acetate, 25~100g/L of sodium bromate, 7.5~17.5g/ of sodium fluoride
L, 0.5~3g/L of sulfate of heavy metal.
The basic chemical polishing liquid is more preferably the aqueous solution being grouped as by the group of following concentration: sodium hydroxide 200
~250g/L, 100~150g/L of sodium nitrate, 200~250g/L of sodium acetate, 50~75g/L of sodium bromate, 10~15g/L of sodium fluoride,
1~2g/L of sulfate of heavy metal.
The heavy metal is one of Ni, Cu, Co, Zn, Sb, Pb, As or two kinds, preferably Cu and/or Zn.
Realizing the technical solution of another object of the present invention is: a kind of basic chemical polishing that basic chemical polishing method uses
Liquid it be the aqueous solution being grouped as by the group of following concentration: 100~500g/L of sodium hydroxide, 50~200g/L of sodium nitrate, acetic acid
100~500g/L of sodium, 10~150g/L of sodium bromate, 5~20g/L of sodium fluoride, 0.1~4g/L of sulfate of heavy metal.
The aqueous solution being preferably grouped as by the group of following concentration: 150~300g/L of sodium hydroxide, sodium nitrate 75~
175g/L, 150~300g/L of sodium acetate, 25~100g/L of sodium bromate, 7.5~17.5g/L of sodium fluoride, the sulfate of heavy metal
0.5~3g/L.
The aqueous solution being more preferably grouped as by the group of following concentration: 200~250g/L of sodium hydroxide, sodium nitrate 100~
150g/L, 200~250g/L of sodium acetate, 50~75g/L of sodium bromate, 10~15g/L of sodium fluoride, 1~2g/ of sulfate of heavy metal
L。
The heavy metal is one of Ni, Cu, Co, Zn, Sb, Pb, As or two kinds, preferably Cu and/or Zn.
The good effect that the present invention has: the present invention has surprisingly found that, is matched by addition sodium bromate with heavy metal sulfate
It closes and uses, the brightness of aluminum alloy product surface can either be improved, can also improve flatness, it is " dotted to solve product surface
The defects of vesicle " and " pork skin shape ", and the basic chemical polishing liquid is environmentally friendly.
Detailed description of the invention
Fig. 1 is the metallographic microscope photo of 7075 aluminum alloy surfaces after the basic chemical polishing of embodiment 1.
Fig. 2 is the metallographic microscope photo of 1060 aluminum alloy surfaces after the basic chemical polishing of embodiment 6.
Fig. 3 is the metallographic microscope photo of 7075 aluminum alloy surfaces after the basic chemical polishing of example 1 by contrast.
Fig. 4 is the metallographic microscope photo of 7075 aluminum alloy surfaces after the basic chemical polishing of example 2 by contrast.
Fig. 5 is the metallographic microscope photo of 7075 aluminum alloy surfaces after the basic chemical polishing of example 3 by contrast.
Specific embodiment
(embodiment 1)
The present embodiment is to carry out basic chemical polishing to 7075 aluminum alloy surfaces, is had follow steps:
It pre-processes 1. 7075 aluminium alloys are put into dehydrated alcohol and impregnate 5min, is then washed with deionized water.
2. pretreated 7075 aluminium alloy is put into basic chemical polishing liquid, in 60 DEG C of at a temperature of progress alkalinity
Chemical polishing 10s.
The basic chemical polishing liquid of the present embodiment is the aqueous solution being grouped as by the group of following concentration: sodium hydroxide 200g/
L；Sodium nitrate 100g/L；Sodium acetate 200g/L；Sodium bromate 50g/L；Sodium fluoride 10g/L；Copper sulphate 1g/L.
Neutralized 3. 7075 aluminium alloys after polishing are first put into dust technology, be then placed in deionized water into
Row ultrasonic cleaning 10min, finally takes out hot blast drying.
The metallographic microscope photo of 7075 aluminum alloy surfaces after the basic chemical polishing of the present embodiment is shown in Fig. 1, by Fig. 1
It can be seen that the 7075 aluminum alloy surface brightness is preferable.
(2~embodiment of embodiment 5)
Each embodiment is substantially the same manner as Example 1, the difference is that the composition of basic chemical polishing liquid, is specifically shown in Table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Sodium hydroxide | 200g/L | 250g/L | 200g/L | 300g/L | 150g/L |
| Sodium nitrate | 100g/L | 150g/L | 100g/L | 175g/L | 75g/L |
| Sodium acetate | 200g/L | 250g/L | 200g/L | 300g/L | 150g/L |
| Sodium bromate | 50g/L | 75g/L | 50g/L | 100g/L | 25g/L |
| Sodium fluoride | 10g/L | 15g/L | 10g/L | 17.5g/L | 7.5g/L |
| Sulfate | Copper sulphate 1g/L | Copper sulphate 1g/L | Copper sulphate 2g/L | Zinc sulfate 2g/L | Nickel sulfate 1g/L |
(embodiment 6)
The present embodiment is to carry out basic chemical polishing to 1060 aluminum alloy surfaces, is had follow steps:
It pre-processes 1. 1060 aluminium alloys are put into dehydrated alcohol and impregnate 5min, is then washed with deionized water.
2. pretreated 1060 aluminium alloy is put into basic chemical polishing liquid, in 50 DEG C of at a temperature of progress alkalinity
Chemical polishing 10s.
The basic chemical polishing liquid of the present embodiment is the aqueous solution being grouped as by the group of following concentration: sodium hydroxide 250g/
L；Sodium nitrate 150g/L；Sodium acetate 250g/L；Sodium bromate 75g/L；Sodium fluoride 15g/L；Zinc sulfate 2g/L.
Neutralized 3. 1060 aluminium alloys after polishing are first put into dust technology, be then placed in deionized water into
Row ultrasonic cleaning 10min, finally takes out hot blast drying.
The metallographic microscope photo of 1060 aluminum alloy surfaces after the basic chemical polishing of the present embodiment is shown in Fig. 2, by Fig. 2
It can be seen that the 1060 aluminum alloy surface brightness is preferable.
(7~embodiment of embodiment 10)
Each embodiment is substantially the same manner as Example 6, the difference is that the composition of basic chemical polishing liquid, is specifically shown in Table 2.
Table 2
| Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 | |
| Sodium hydroxide | 250g/L | 200g/L | 250g/L | 150g/L | 300g/L |
| Sodium nitrate | 150g/L | 100g/L | 150g/L | 75g/L | 175g/L |
| Sodium acetate | 250g/L | 200g/L | 250g/L | 150g/L | 300g/L |
| Sodium bromate | 75g/L | 50g/L | 75g/L | 25g/L | 100g/L |
| Sodium fluoride | 15g/L | 10g/L | 15g/L | 7.5g/L | 17.5g/L |
| Sulfate | Zinc sulfate 2g/L | Zinc sulfate 2g/L | Zinc sulfate 1g/L | Copper sulphate 1g/L | Cobaltous sulfate 2g/L |
(1~comparative example of comparative example 3)
Each comparative example is substantially the same manner as Example 1, the difference is that the composition of basic chemical polishing liquid, is specifically shown in Table 3.
Table 3
| Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Sodium hydroxide | 200g/L | 200g/L | 200g/L |
| Sodium nitrate | 100g/L | 100g/L | 100g/L |
| Sodium acetate | 200g/L | 200g/L | 200g/L |
| Sodium bromate | - | - | 50g/L |
| Sodium fluoride | 10g/L | 10g/L | 10g/L |
| Sulfate | Copper sulphate 1g/L | - | - |
Claims (2)
1. a kind of 1060 aluminum alloy basification optical polishing methods, it is characterised in that have follow steps:
It pre-processes 1. 1060 aluminium alloys are put into dehydrated alcohol and impregnate 5min, is then washed with deionized water；
2. pretreated 1060 aluminium alloy is put into basic chemical polishing liquid, 50 DEG C at a temperature of carry out alkali electroless
Polish 10s；
The basic chemical polishing liquid is the aqueous solution being grouped as by the group of following concentration: sodium hydroxide 250g/L；Sodium nitrate
150g/L；Sodium acetate 250g/L；Sodium bromate 75g/L；Sodium fluoride 15g/L；Zinc sulfate 2g/L；
It is neutralized 3. 1060 aluminium alloys after polishing are first put into dust technology, is then placed in deionized water and is surpassed
Sound cleans 10min, finally takes out hot blast drying.
2. a kind of basic chemical polishing liquid that 1060 aluminum alloy basification optical polishing methods use, it is characterised in that it is by following
The aqueous solution that the group of concentration is grouped as: sodium hydroxide 250g/L；Sodium nitrate 150g/L；Sodium acetate 250g/L；Sodium bromate 75g/L；
Sodium fluoride 15g/L；Zinc sulfate 2g/L.
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| CN201510143972.0A CN104694931B (en) | 2015-03-30 | 2015-03-30 | The basic chemical polishing liquid of basic chemical polishing method and its employing |
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| CN201710104706.6A Active CN106676529B (en) | 2015-03-30 | 2015-03-30 | A kind of 1060 aluminum alloy basification optical polishing method and its basic chemical polishing liquid of use |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105177586A (en) * | 2015-07-21 | 2015-12-23 | 安徽江威精密制造有限公司 | Aluminum alloy polishing solution and preparing method thereof |
| CN105039992A (en) * | 2015-07-21 | 2015-11-11 | 安徽江威精密制造有限公司 | Alkaline polishing solution and preparation method thereof |
| CN106757034A (en) * | 2016-11-28 | 2017-05-31 | 江南大学 | A kind of preparation method of alkalinous metal polishing fluid |
| CN110629225B (en) * | 2018-06-25 | 2021-11-12 | 比亚迪股份有限公司 | Aluminum alloy alkaline chemical polishing solution, preparation method and polishing method |
| CN108950565B (en) * | 2018-08-16 | 2021-02-05 | 广州波耳化工科技有限公司 | Aluminum alloy chemical polishing agent and aluminum alloy surface polishing method |
| CN112522709B (en) * | 2020-12-18 | 2022-11-15 | 东莞市新东明科技有限公司 | Flat plate shell polishing method |
| CN113718328B (en) * | 2021-11-04 | 2022-02-11 | 山东裕航特种合金装备有限公司 | Surface treatment method for aluminum alloy casting for ship |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031574A (en) * | 1987-06-19 | 1989-03-08 | 北京航空学院 | Aluminium and aluminum alloy basification optical polishing solution |
| CN1637101A (en) * | 2003-11-26 | 2005-07-13 | 福吉米株式会社 | Polishing composition and polishing method |
| CN102925900A (en) * | 2012-10-19 | 2013-02-13 | 贵州航天林泉电机有限公司 | Alkaline chemical polishing solution and alkaline chemical polishing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945756B2 (en) * | 1981-09-14 | 1984-11-08 | 横山表面工業株式会社 | Alkaline aluminum chemical polishing liquid |
-
2015
- 2015-03-30 CN CN201510143972.0A patent/CN104694931B/en active Active
- 2015-03-30 CN CN201710104706.6A patent/CN106676529B/en active Active
- 2015-03-30 CN CN201710104707.0A patent/CN106702389B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031574A (en) * | 1987-06-19 | 1989-03-08 | 北京航空学院 | Aluminium and aluminum alloy basification optical polishing solution |
| CN1637101A (en) * | 2003-11-26 | 2005-07-13 | 福吉米株式会社 | Polishing composition and polishing method |
| CN102925900A (en) * | 2012-10-19 | 2013-02-13 | 贵州航天林泉电机有限公司 | Alkaline chemical polishing solution and alkaline chemical polishing method |
Non-Patent Citations (2)
| Title |
|---|
| "铝及铝合金两酸镜面抛光液的研制";舒伟等;《第十届全国转化膜及表面精饰学术年会论文集》;20140414;第18-20页 * |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104694931B (en) | 2017-03-15 |
| CN104694931A (en) | 2015-06-10 |
| CN106702389B (en) | 2019-01-25 |
| CN106676529A (en) | 2017-05-17 |
| CN106702389A (en) | 2017-05-24 |
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