CN101457361B - Surface etching method of aluminum section bar for furniture - Google Patents
Surface etching method of aluminum section bar for furniture Download PDFInfo
- Publication number
- CN101457361B CN101457361B CN2009100424370A CN200910042437A CN101457361B CN 101457361 B CN101457361 B CN 101457361B CN 2009100424370 A CN2009100424370 A CN 2009100424370A CN 200910042437 A CN200910042437 A CN 200910042437A CN 101457361 B CN101457361 B CN 101457361B
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- treatment solution
- etch
- aluminum section
- section bar
- scattering
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Abstract
An etching scattering brightener used on furniture aluminum section surface comprises two treating solutions containing different components. The treating solution (1) is made from 12g.L<-1>-20g.L<-1> of ammonium chloride (NH4CL), 20g.L<-1>-30g.L<-1> of ammonium bifluoride (NH4HF2) and water; and the treating solution (2) is made from 15g.L<-1>-20g.L<-1> of sodium fluoride (NaF), 5g.L<-1>-10g.L<-1> of potassium permanganate (KMnO4) and the water. The chemical etching operation flow comprises the following steps: (1) removing oil stains from the surface of an aluminum section according to the conventional oil removal working procedures; and (2) etching treatment: at first, putting the aluminum section into the treating solution (1) at normal temperature to be etched for 5-10min, taking outand washing the aluminum section with flowing water, then putting the aluminum section into the treating solution (2) at the normal temperature to be etched for 3-8min, taking out and washing the aluminum section with the flowing water, then soaking and cleaning with 20-30% of dilute nitric acid solution by mass percent for 2-3min, and finally oxidizing and sealing holes according to the conventional procedures to obtain a finished product. The etching scattering brightener can ensure a furniture aluminum section to be provided with high-quality diffusion and scattering frosted surfaces, and has low production cost and stable process.
Description
Technical field
The present invention relates to aluminum section bar surface etching scattering brightener for furniture and etching method thereof, relate in particular to and furniture is imposed chemical etching with aluminium section bar and obtain the surface etching scattering brightener and the etching method thereof of high quality diffuse scattering matte surface.
Background technology
The frosting aluminium section bar is popular new variety in aluminium section bar market in recent years, and its surface is fine and smooth soft, can't see the overflow mould line, has avoided bright alloy profile to form the shortcoming of light pollution simultaneously under the certain environment condition, so favored by market.There is report to think that the frosting section bar is one of five developing direction in aluminium alloy extrusions future.
Frosting aluminium section bar preprocessing means commonly used is the chemical etching granulation method, and its essence is to utilize metallic substance in certain specific medium pitting to take place and the purpose that reaches finish.Shortcomings such as alkaline etching washes that the technology that forms the sand face exists the mould line to eliminate clean, dusting lack of homogeneity, shows that sand is not obvious, aluminium consumption and alkaline consumption are serious.Acid etching is washed the technology that forms the sand face and is had advantages such as the mechanical line ability is strong, dusting fast, the aluminium consumption is low, replaces alkaline etching gradually and washes.But acid etching is washed technology and is existed the acid etching ash to make the problem of aluminium shape surface obfuscation.
In order to overcome above-mentioned shortcoming, industry has been developed some new chemical etching granulation technology.For example No. 200410015335.7 patents of invention have proposed a kind of anodic oxidation pre-treating process of aluminium alloy.This method comprises the steps: that (1) is except that oil dewaxing; (2) washing; (3) blast acid etching; (4) acid etching light; (5) washing; (6) ash disposal; (7) washing; (8) washing.(1) can produce cryogenic polishing frosted material to (8) treatment step coupling, the aluminium shape surface after this method is handled does not have line, ashless, fine sand, beautiful.But the treatment step that should invent is many, complex process, and also the treatment solution kind of using is many, prescription is complicated, concentration of component is high, causes production cost higher.200610123725.5 it is simple that number patent of invention has proposed a kind of technology, steady quality is suitable for aluminium and alloy surface bright sand face treatment solution of chemistry and treatment process that the big technological process of production is operated.Contain sulfuric acid, fluorion, Neutral ammonium fluoride, ammonium nitrate, Secondary ammonium phosphate or primary ammonium phosphate, polar solvent in the treatment solution.This invention only needs a step aluminium surface can be made bright sand face with the technology of chemistry.But there is the prescription for the treatment of liquid complicated problems equally in this invention, and the temperature that the sand face is handled is 55 ± 5 ℃, needs heat treated liquid, and production energy consumption is higher.
Summary of the invention
The purpose of this invention is to provide a kind of furniture with aluminium section bar etching scattering brightener and etching method thereof, make aluminium shape surface obtain the cleaning, beautiful of high level, and the graceful texture effect of sand hole uniform and smooth, low production cost simultaneously, process stabilizing.
The invention provides a kind of aluminum section bar surface etching scattering brightener for furniture, 1. this surface etching scattering brightener comprises and the 2. treatment solution of two kinds of heterogeneities that described treatment solution composition 1. is: ammonium chloride (NH
4Cl) 10gL
-1～20gL
-1, ammonium bifluoride (NH
4HF
2) 15gL
-1～30gL
-1, excess water; Described treatment solution composition 2. is: Sodium Fluoride (NaF) 10gL
-1～20gL
-1, potassium permanganate (KMnO
4) 5gL
-1～10gL
-1, excess water.
The present invention also provides a kind of furniture aluminium section bar chemical etching method, and this method may further comprise the steps: (1) oil removing operation is routinely removed the greasy dirt of aluminium shape surface; (2) using described surface etching scattering brightener that aluminium section bar is carried out etch handles.Described etch is handled and is comprised twice etch operation, and 1. 1. the etch operation use treatment solution, and 2. 2. the etch operation use treatment solution.The operating process that etch is handled is: the etch operation 1. → washing → etch operation 2. → washing → pickling → oxidation → sealing of hole.The treatment solution of at first aluminium section bar after the described oil removing of step (1) being put into normal temperature is etch 5min～10min 1., the treatment solution of putting into normal temperature after taking-up is cleaned with flowing water again is etch 3min～8min 2., taking-up is cleaned the back with flowing water and embathe 2min～3min in mass percent is 20%～30% dilute nitric acid solution, program is carried out oxidation, sealing of hole routinely at last, obtains finished product.
The 1. middle fluorion (F of treatment solution
-) and chlorion (Cl
-) aluminium there is significant pitting effect, can replace the oxide compound in the local natural oxide film of aluminium material surface, make this place generate the fluorochemical of aluminium or muriate soluble salt and break away from aluminum substrate, expose clean aluminium surface simultaneously, acceleration and fluorion or chlorion react.The gas that in addition forms in chemical reaction also has stirring action, helps the renewal of aluminium material surface etch solution, thereby makes aluminium section bar that degree of depth pitting fast take place.The many local tiny area of this pitting on aluminium material surface carries out simultaneously, just forms matte surface.In addition, handle under the identical situation of rear surface dispersion effect in etch, because fluorion and chlorion have been accelerated pitting speed, so the etch loss by solution of aluminium material surface obviously reduces.Treatment solution 2. in once more the purpose of etch be ash disposal, blast.Sodium Fluoride mainly makes aluminium material surface continue pitting to take place and eliminate the acid etching ash.The oxygenizement of potassium permanganate can make aluminium material surface generate oxide film, suppress the fast deep corrosion of Sodium Fluoride, play corrosion inhibition, prevent excessive erosion, and improve the homogeneity of sand hole, final smoothly beautiful, sand hole uniform and smooth, the matte surface that gloss is soft of obtaining.
Compared with the prior art, the present invention has following beneficial effect:
The etchant prescription is simple, and is with low cost, and wherein do not contain traditional acid or alkaloids, and the aluminium consume is few.Etch is handled and is carried out at normal temperatures, has reduced production energy consumption when improving production environment.Sand hole is all thin smoothly in appearance, light is soft, texture is graceful for aluminium shape surface after the present invention handles.Surfaceness detects the surfaceness R that shows etch processing back aluminium section bar
a(profile arithmetic average error) is 0.72 μ m.The diameter that records sand hole under optical metallographic microscope is approximately 1～6 μ m.
Embodiment
Embodiment one
First step: oil removing operation is routinely removed the greasy dirt of aluminium shape surface;
Second step: carry out etch and handle.
Surface etching scattering brightener is made up of the treatment solution of two kinds of heterogeneities.Treatment solution composition 1. is: ammonium chloride (NH
4Cl) 12gL
-1, ammonium bifluoride (NH
4HF
2) 25gL
-1, excess water.Treatment solution composition 2. is: Sodium Fluoride (NaF) 15gL
-1, potassium permanganate (KMnO
4) 10gL
-1, excess water.
Etch is handled and is comprised twice etch operation, and 1. 1. the etch operation use treatment solution, and 2. 2. the etch operation use treatment solution.The operating process that etch is handled is: the etch operation 1. → washing → etch operation 2. → washing → pickling → oxidation → sealing of hole.The treatment solution of at first aluminium section bar being put into normal temperature is etch 5min～10min 1., the treatment solution of putting into normal temperature after taking-up is cleaned with flowing water again is etch 3min～8min 2., taking-up is cleaned the back with flowing water and embathe 2min～3min in mass percent is 20%～30% dilute nitric acid solution, program is carried out oxidation, sealing of hole routinely at last, obtains finished product.
Embodiment two
First step: oil removing operation is routinely removed the greasy dirt of aluminium shape surface;
Second step: carry out etch and handle.
Surface etching scattering brightener is made up of the treatment solution of two kinds of heterogeneities.Treatment solution composition 1. is: ammonium chloride (NH
4Cl) 20gL
-1, ammonium bifluoride (NH
4HF
2) 20gL
-1, excess water.Treatment solution composition 2. is: Sodium Fluoride (NaF) 20gL
-1, potassium permanganate (KMnO
4) 8gL
-1, excess water.
Etch is handled and is comprised twice etch operation, and 1. 1. the etch operation use treatment solution, and 2. 2. the etch operation use treatment solution.The operating process that etch is handled is identical with embodiment one.
Embodiment three
First step: oil removing operation is routinely removed the greasy dirt of aluminium shape surface;
Second step: carry out etch and handle.
Surface etching scattering brightener is made up of the treatment solution of two kinds of heterogeneities.Treatment solution composition 1. is: ammonium chloride (NH
4Cl) 16gL
-1, ammonium bifluoride (NH
4HF
2) 30gL
-1, excess water.Treatment solution composition 2. is: Sodium Fluoride (NaF) 17gL
-1, potassium permanganate (KMnO
4) 10gL
-1, excess water.
Etch is handled and is comprised twice etch operation, and 1. 1. the etch operation use treatment solution, and 2. 2. the etch operation use treatment solution.The operating process that etch is handled is identical with embodiment one.
Claims (2)
1. a furniture is characterized in that with aluminium section bar chemical etching method:
Adopt surface etching scattering brightener, this surface etching scattering brightener has two kinds, be respectively have heterogeneity treatment solution 1. with treatment solution 2.; Described treatment solution composition 1. is: ammonium chloride 10gL
-1～20gL
-1, ammonium bifluoride 15gL
-1～30gL
-1, excess water; Described treatment solution composition 2. is: Sodium Fluoride 10gL
-1～20gL
-1, potassium permanganate 5gL
-1～10gL
-1, excess water;
This method may further comprise the steps: (1) oil removing operation is routinely removed the greasy dirt of aluminium shape surface; (2) after 1. the described treatment solution of use carries out the etch processing to aluminium section bar earlier, re-use described treatment solution and 2. carry out the etch processing; (3) aluminium section bar after etch is handled takes out, and cleans with flowing water, embathes 2min～3min then in mass percent is 20%～30% dilute nitric acid solution, and program is carried out oxidation, sealing of hole routinely at last, obtains finished product.
2. furniture according to claim 1 aluminium section bar chemical etching method, it is characterized in that, the described etch treating processes of step (2) is: the treatment solution of at first aluminium section bar after the described oil removing of step (1) being put into normal temperature is etch 5min～10min 1., takes out the 2. etch 3min～8min of treatment solution that puts into normal temperature after cleaning with flowing water again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100424370A CN101457361B (en) | 2009-01-07 | 2009-01-07 | Surface etching method of aluminum section bar for furniture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100424370A CN101457361B (en) | 2009-01-07 | 2009-01-07 | Surface etching method of aluminum section bar for furniture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101457361A CN101457361A (en) | 2009-06-17 |
| CN101457361B true CN101457361B (en) | 2010-09-29 |
Family
ID=40768475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100424370A Expired - Fee Related CN101457361B (en) | 2009-01-07 | 2009-01-07 | Surface etching method of aluminum section bar for furniture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101457361B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152886A (en) * | 2014-08-15 | 2014-11-19 | 福建省闽发铝业股份有限公司 | Production method of aluminum profile |
| CN106435612A (en) * | 2016-07-01 | 2017-02-22 | 中航飞机股份有限公司西安飞机分公司 | Method for stabilizing aluminum alloy pickling solution with ammonium ions as complexing agent |
-
2009
- 2009-01-07 CN CN2009100424370A patent/CN101457361B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101457361A (en) | 2009-06-17 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20150107 |
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| EXPY | Termination of patent right or utility model |