CN105506633A - Alkali etching method of aluminum section bar - Google Patents
Alkali etching method of aluminum section bar Download PDFInfo
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- CN105506633A CN105506633A CN201511013503.3A CN201511013503A CN105506633A CN 105506633 A CN105506633 A CN 105506633A CN 201511013503 A CN201511013503 A CN 201511013503A CN 105506633 A CN105506633 A CN 105506633A
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- parts
- section bar
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- alkaline etching
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Classifications
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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
- 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
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- 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)
- ing And Chemical Polishing (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of machining of an aluminum section bar, in particular to an alkali etching method of the aluminum section bar. The method comprises the steps of wiping off oil dirt at the surface of the aluminum section bar, washing with water for 10 minutes, and then wiping with ethyl alcohol for 5min; placing the aluminum section bar in alkali etching treating fluid with treating temperature of 50 DEG C and treating time of 5min, wherein the alkali etching treating fluid is prepared from 30 parts of sodium hydroxide, 5 parts of polyvinyl acetate emulsion, 0.5 part of gastrodin, 5 parts of sodium sulphide, 5 parts of sodium carbonate, 5 parts of sorbitol and 50 parts of water; fishing out and washing with water till a pH value of the washing water recovers to be neutral and then drying. The alkali etching method of the aluminum section bar is relatively simple in operation process, and by reasonably designing a formula of the alkali etching treating fluid and the preparing method, the alkali etching effect and quality of the aluminum section bar are improved.
Description
Technical field
The present invention relates to aluminium section bar processing technique field, specifically relate to a kind of alkaline etching treatment process of aluminium section bar.
Background technology
In the course of processing of aluminium section bar, alkaline etching process is absolutely necessary treatment process, is for it obtains the committed step of excellent surface.Traditional alkaline etching process occurs be hydrolyzed and precipitate due to the accumulative of Starso, and comparatively serious to the pollution of environment.
Summary of the invention
For the technical problem existed in prior art, the object of the present invention is to provide a kind of alkaline etching treatment process of aluminium section bar, for achieving the above object, present invention employs following technical scheme:
An alkaline etching treatment process for aluminium section bar, step is as follows:
Step 1., the greasy dirt of erasing aluminium shape surface, then rinse 10 minutes with water, then use ethanol to clean 5 minutes;
2., by aluminium section bar step puts into alkaline etching treatment solution, and treatment temp is 50 DEG C, and the treatment time is 5 minutes; Alkaline etching treatment solution is made up of 30 parts of sodium hydroxide, 5 parts of polyvinyl acetate emulsions, 0.5 part of Gastrodine, 5 parts of sodium sulphite, 5 parts of sodium carbonate, 5 parts of sorbyl alcohols and 50 parts of water;
Step 3., pull rear water out and rinse until the pH value of wash-down water returns to neutrality, then dry.
Preferably, the preparation method of the alkaline etching treatment solution that 2. described step uses is: in container, first add 5 parts of polyvinyl acetate emulsions, 5 parts of sodium carbonate and 20 parts of water, stirs 5 minutes; Then slowly add 30 parts of sodium hydroxide and 10 parts of water, limit edged stirs, and stirs 5 minutes after interpolation; Then slowly add 0.5 part of Gastrodine and 5 parts of sorbyl alcohols, limit edged stirs, and stirs 5 minutes after interpolation; Finally slowly add 5 parts of sodium sulphite and 20 parts of water, stir 20 minutes.
Beneficial effect of the present invention shows:
1) the alkaline etching treatment solution, used in alkaline etching treatment process, its formulating of recipe is novel, reasonable, particularly with the addition of a small amount of Gastrodine, the processing efficiency of alkaline etching treatment solution can be significantly improved, it effectively can prevent the accumulative of sodium metaaluminate and occur be hydrolyzed and precipitate, to obtain high-quality careful sand face.
2), the preparation method of alkaline etching treatment solution, by the method for progressively adding and appropriate design order of addition(of ingredients), the solubility property between each material can not only be improved, the possibility of particle agglomeration can also be avoided, the surface protecting function of alkaline etching treatment solution is promoted significantly.
3), the alkaline etching treatment process of aluminium section bar, operating procedure is relatively more succinct, by formula and the preparation method of appropriate design alkaline etching treatment solution, thus improves aluminium section bar alkaline etching treatment effect and quality.
Embodiment
Below with reference to embodiment, the present invention is described in detail.But; embodiment content is only citing made for the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
One, the composition of alkaline etching treatment solution
30 parts of sodium hydroxide, 5 parts of polyvinyl acetate emulsions, 0.5 part of Gastrodine, 5 parts of sodium sulphite, 5 parts of sodium carbonate, 5 parts of sorbyl alcohols and 50 parts of water.
Two, the preparation method of alkaline etching treatment solution is:
First in container, add 5 parts of polyvinyl acetate emulsions, 5 parts of sodium carbonate and 20 parts of water, stir 5 minutes; Then slowly add 30 parts of sodium hydroxide and 10 parts of water, limit edged stirs, and stirs 5 minutes after interpolation; Then slowly add 0.5 part of Gastrodine and 5 parts of sorbyl alcohols, limit edged stirs, and stirs 5 minutes after interpolation; Finally slowly add 5 parts of sodium sulphite and 20 parts of water, stir 20 minutes.
Three, the alkaline etching treatment process of aluminium section bar, step is as follows:
Step 1., the greasy dirt of erasing aluminium shape surface, then rinse 10 minutes with water, then use ethanol to clean 5 minutes;
2., by aluminium section bar step puts into alkaline etching treatment solution, and treatment temp is 50 DEG C, and the treatment time is 5 minutes;
Step 3., pull rear water out and rinse until the pH value of wash-down water returns to neutrality, then dry.
Claims (2)
1. an alkaline etching treatment process for aluminium section bar, is characterized in that step is as follows:
Step 1., the greasy dirt of erasing aluminium shape surface, then rinse 10 minutes with water, then use ethanol to clean 5 minutes;
2., by aluminium section bar step puts into alkaline etching treatment solution, and treatment temp is 50 DEG C, and the treatment time is 5 minutes; Alkaline etching treatment solution is made up of 30 parts of sodium hydroxide, 5 parts of polyvinyl acetate emulsions, 0.5 part of Gastrodine, 5 parts of sodium sulphite, 5 parts of sodium carbonate, 5 parts of sorbyl alcohols and 50 parts of water;
Step 3., pull rear water out and rinse until the pH value of wash-down water returns to neutrality, then dry.
2. the alkaline etching treatment process of aluminium section bar as claimed in claim 1, is characterized in that the preparation method of the alkaline etching treatment solution that 2. described step uses is: in container, first add 5 parts of polyvinyl acetate emulsions, 5 parts of sodium carbonate and 20 parts of water, stir 5 minutes; Then slowly add 30 parts of sodium hydroxide and 10 parts of water, limit edged stirs, and stirs 5 minutes after interpolation; Then slowly add 0.5 part of Gastrodine and 5 parts of sorbyl alcohols, limit edged stirs, and stirs 5 minutes after interpolation; Finally slowly add 5 parts of sodium sulphite and 20 parts of water, stir 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013503.3A CN105506633A (en) | 2015-12-31 | 2015-12-31 | Alkali etching method of aluminum section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511013503.3A CN105506633A (en) | 2015-12-31 | 2015-12-31 | Alkali etching method of aluminum section bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105506633A true CN105506633A (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511013503.3A Pending CN105506633A (en) | 2015-12-31 | 2015-12-31 | Alkali etching method of aluminum section bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN105506633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729459A (en) * | 2019-11-21 | 2022-07-08 | 奥野制药工业株式会社 | Chemical polishing agent and chemical polishing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962920A (en) * | 2015-07-27 | 2015-10-07 | 马鞍山市华冶铝业有限责任公司 | Aluminum profile alkaline corrosion solution as well as preparation method, application and application method thereof |
-
2015
- 2015-12-31 CN CN201511013503.3A patent/CN105506633A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962920A (en) * | 2015-07-27 | 2015-10-07 | 马鞍山市华冶铝业有限责任公司 | Aluminum profile alkaline corrosion solution as well as preparation method, application and application method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114729459A (en) * | 2019-11-21 | 2022-07-08 | 奥野制药工业株式会社 | Chemical polishing agent and chemical polishing method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |