CN1070696A - Aluminum or aluminum alloy surface hydrophilic and preservative treatment technology - Google Patents
Aluminum or aluminum alloy surface hydrophilic and preservative treatment technology Download PDFInfo
- Publication number
- CN1070696A CN1070696A CN 91109075 CN91109075A CN1070696A CN 1070696 A CN1070696 A CN 1070696A CN 91109075 CN91109075 CN 91109075 CN 91109075 A CN91109075 A CN 91109075A CN 1070696 A CN1070696 A CN 1070696A
- Authority
- CN
- China
- Prior art keywords
- aluminum
- aluminum alloy
- treatment
- semifinished
- finished goods
- 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.)
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000005516 engineering process Methods 0.000 title claims description 12
- 239000003755 preservative agent Substances 0.000 title claims description 12
- 230000002335 preservative effect Effects 0.000 title claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 238000007747 plating Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 238000007743 anodising Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 235000011194 food seasoning agent Nutrition 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- 239000013543 active substance Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 2
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 2
- 230000002269 spontaneous effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract description 3
- 238000011109 contamination Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract 1
- 239000002481 rotproofing Substances 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001274660 Modulus Species 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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
- C25D11/16—Pretreatment, e.g. desmutting
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to the surface hydrophilic and the rotproofing of aluminum or aluminum alloy goods.The present invention utilizes electrochemical principle to integrate and applies and chemical reaction, can form the hydrophilic protective membrane of 5 μ m～50 μ m effectively on the surface of aluminum or aluminum alloy material.Thereby have treatment process novelty, simple, practical, cheap, a advantage that effect is good, can not only prevent effectively that aluminium flake or aluminum alloy sheet surface from forming the drop and the corrosion of condensed water, and treatment solution is the aqueous solution, has the free of contamination characteristics of nontoxic, no burn into.
Description
The present invention relates to the surface hydrophilic and the preservative treatment technology of the semifinished or finished goods that aluminum or aluminum alloy makes.
In the prior art of the present invention, heart-the heat exchanger of air conditioning machinery for example, this heat exchanger is made of kaolin (or aluminum alloy sheet), in the surface Working Temperature of the aluminium flake of the outdoor section of the aluminium flake of the indoor section of summer air-conditioning machine and winter air-conditioning machine all below dew point, the water of condensation that therefore airborne moisture content forms is attached to the surface of aluminium flake, this water of condensation forms water droplet, between aluminium flake, form the water bridge, reduced the area of heat exchanger, increased ventilation resistance, thereby increased power consumption, strengthened adverse consequencess such as noise and generation water-drop sputtering.What is more, the agglomerative globule can produce and freeze, its consequence is even more serious, in addition, oxygen, condensed water and airborne pollutent (as chlorine, sulphur and compound thereof) also can produce corrosive nature to aluminium, and the immersion adopted of prior art at present is stained with and is coated with processing, contains organic solvent in its solution, not only cost height, poisonous, contaminate environment, and become thickness, influence the speed of heat exchange.
Purpose of design of the present invention is: design a kind of condensed water that should prevent and form drop at aluminium flake or aluminum alloy sheet surface, prevent the corrosion of aluminium flake or aluminum alloy sheet again, and treatment solution is the aqueous solution, aluminum or aluminum alloy surface hydrophilic and preservative treatment technology that nontoxic, no burn into is free from environmental pollution.Design of the present invention is: aluminum or aluminum alloy surface hydrophilic and preservative treatment technology, at first remove the greasy dirt of aluminum alloy surface, and its aluminum or aluminum alloy surface hydrophilic and preservative treatment technology comprise pre-treatment and aftertreatment; Pre-treatment refers to the processing before the processing of aluminum or aluminum alloy sheet, and aftertreatment refers to the processing of the semifinished or finished goods that aluminum or aluminum alloy is made; Pre-treatment is identical with the technical process and the parameter of aftertreatment; Aftertreatment comprises preparation, cathode treatment, anodizing and the sealing treatment of the aqueous solution in the plating tank; The first step: the ratio of aqueous solution preparation is in the plating tank:
Silica 1～200g/L
Sodium oxide or potassium oxide 0.1～200g/L
Sodium lignosulfonate or other tensio-active agent 0.001～200g/L
Impurity 0～200g/L
Illustrate: SiO wherein
2Can derive from water glass, silicon sol or water glass, potassium silicate etc.;
Second step: cathode treatment, will be immersed in by the semifinished or finished goods that aluminum or aluminum alloy is made in the aqueous solution of plating tank, the semifinished or finished goods that aluminum or aluminum alloy is made connects negative electrode, and voltage is processing 5 seconds～50 minutes under 1～100 volt the condition in plating tank; Principal reaction is:
The 3rd step: anodizing, the semifinished or finished goods reconfiguration anode that will make through the aluminum or aluminum alloy of cathode treatment, voltage is under 1～100 volt the condition, to handle 5 seconds～50 minutes in plating tank; Its principal reaction is:
The 4th step: drying, will from plating tank, propose through the semifinished or finished goods that the aluminum or aluminum alloy after the anodizing is made, spontaneous current is clean or adopt centrifugal force that electroplate liquid is all got rid of only or with 0.5kg～4kg/cm at normal temperatures to allow electroplate liquid
2Wind it is blown off, allow its seasoning or go into baking oven and under 60 ℃～180 ℃ condition, dry then; Its principal reaction is:
The 5th step: sealing treatment, the semifinished or finished goods that dried aluminum or aluminum alloy is made is inserted in the boiling water and was soaked 0.5 minute～10 minutes, impurity concentration is 0～100g/L in the requirement boiling water, it is clean to take out the relief current, allow its seasoning or go under 60 ℃～180 ℃ condition, dry in the baking oven once more, on the surface of the semifinished or finished goods that aluminum or aluminum alloy is made, obtain the hydrophilic protective films of 5nm～50 μ m this moment, according to the quality product requirement, can save sealing treatment or save anodizing, sealing treatment, or save anodizing, or save cathode treatment, or save cathode treatment, sealing treatment; When containing copper material in the semifinished or finished goods that aluminum or aluminum alloy is made, the protection treatment process of its copper material is: adopt water-fast organic substance or organic polymer material protective membrane coated exposed part at copper material, and good to the copper pipe of opening with the soft rubber ball plug; Water-fast organic substance or organic polymer material protective membrane are resin or plastics or synthetic glass etc.
Applied Electrochemistry handling principle of the present invention and aluminum or aluminum alloy surface hydrophilic and the preservative treatment technology invented have treatment process novelty, simple, practical, cheap, advantage that effect is good; Not only can prevent effectively that condensed water from forming drop and preventing metallic corrosion at aluminium flake or aluminum alloy sheet surface, and its electroplate liquid employing aqueous solution, the free of contamination characteristics of nontoxic, no burn into had.
Description of drawings:
Fig. 1 is the process flow diagram of aluminum or aluminum alloy surface hydrophilic and preservative treatment technology.
Embodiment:
Fig. 1 is a kind of embodiment of aluminum or aluminum alloy surface hydrophilic and preservative treatment technology.
Implement: with the air conditioner heat exchanger fuse is example.After getting proportion 1.31 moduluses and be 5.5 liters of 2.5 water glass and adding water to 100 liters, add Na
2SiO
3200g dissolves, stirs evenly, filters, gets supernatant liquor and puts in the plating tank, and add sodium lignosulfonate 0.3g and form electroplate liquid (aqueous solution of plating tank), be 7.7m with area of dissipation
2The aqueous solution of air conditioner heat exchanger fuse (removed greasy dirt and finished copper pipe protection operation) immersion plating groove in; connect negative electrode; plating tank voltage is under 10 volts the condition; handled 4 minutes; again with behind its fuse reconfiguration anode, be to handle 4 minutes under 10 volts the condition at plating tank voltage, go into boiling water after the oven dry and propose after 1 minute; dry, just can obtain the surface hydrophilic protective membrane of about 60nm.
Claims (2)
1, a kind of aluminum or aluminum alloy surface hydrophilic and preservative treatment technology are at first removed the greasy dirt of aluminum alloy surface, and it is characterized in that: aluminum or aluminum alloy surface hydrophilic and preservative treatment technology comprise pre-treatment and aftertreatment; Pre-treatment refers to the processing before the processing of aluminum or aluminum alloy sheet, and aftertreatment refers to the processing of the semifinished or finished goods that aluminum or aluminum alloy is made; Pre-treatment is identical with the technical process and the parameter of aftertreatment; Aftertreatment comprises preparation, cathode treatment, anodizing and the sealing treatment of the aqueous solution in the plating tank; The first step: the ratio of aqueous solution preparation is in the plating tank: silica 1～200g/L; Sodium oxide or potassium oxide 0.1～200g/L; Sodium lignosulfonate or other tensio-active agent 0.001～200g/L; Impurity 0～200g/L; Second step: cathode treatment, will be immersed in by the semifinished or finished goods that aluminum or aluminum alloy is made in the aqueous solution of plating tank, the semifinished or finished goods that aluminum or aluminum alloy is made connects negative electrode, and voltage is processing 5 seconds～50 minutes under 1～100 volt the condition in plating tank; The 3rd step: anodizing, the semifinished or finished goods reconfiguration anode that will make through the aluminum or aluminum alloy of cathode treatment, voltage is under 1～100 volt the condition, to handle 5 seconds～50 minutes in plating tank; The 4th step: drying, will from plating tank, propose through the semifinished or finished goods that the aluminum or aluminum alloy after the anodizing is made, spontaneous current is clean or adopt centrifugal force that electroplate liquid is all got rid of only or with 0.5kg～4kg/cm at normal temperatures to allow electroplate liquid
2Wind it is blown off, allow its seasoning or go into baking oven and under 60 ℃～180 ℃ condition, dry then; The 5th step: sealing treatment; the semifinished or finished goods that dried aluminum or aluminum alloy is made is inserted in the boiling water and was soaked 0.5 minute～10 minutes; impurity concentration is 0～100g/L in the requirement boiling water; it is clean to take out the relief current; allow its seasoning or go under 60 ℃～180 ℃ condition, dry in the baking oven once more, on the surface of the semifinished or finished goods that aluminum or aluminum alloy is made, obtain the hydrophilic protective films of 5nm～50 μ m this moment.
2, aluminum or aluminum alloy surface hydrophilic according to claim 1 and preservative treatment technology, it is characterized in that:, can save sealing treatment or save anodizing, sealing treatment or save cathode treatment or save cathode treatment or save cathode treatment, sealing treatment according to the quality product requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91109075 CN1070696A (en) | 1991-09-16 | 1991-09-16 | Aluminum or aluminum alloy surface hydrophilic and preservative treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91109075 CN1070696A (en) | 1991-09-16 | 1991-09-16 | Aluminum or aluminum alloy surface hydrophilic and preservative treatment technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1070696A true CN1070696A (en) | 1993-04-07 |
Family
ID=4909626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91109075 Pending CN1070696A (en) | 1991-09-16 | 1991-09-16 | Aluminum or aluminum alloy surface hydrophilic and preservative treatment technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070696A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300543C (en) * | 2003-10-22 | 2007-02-14 | 北京化工大学 | Method for corrosion resistant protection of condensed water system |
| CN100350080C (en) * | 2004-12-02 | 2007-11-21 | 西安理工大学 | Heat etching proof surface treatment method of piston combustion chamber for natural gas fual engine |
| WO2011057422A1 (en) * | 2009-11-10 | 2011-05-19 | Unilever Plc | Frost free surfaces and method for manufacturing the same |
| CN106334663A (en) * | 2016-09-23 | 2017-01-18 | 大连理工大学 | Method for creating high-precision extremely-wet patterns on aluminum matrix |
-
1991
- 1991-09-16 CN CN 91109075 patent/CN1070696A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300543C (en) * | 2003-10-22 | 2007-02-14 | 北京化工大学 | Method for corrosion resistant protection of condensed water system |
| CN100350080C (en) * | 2004-12-02 | 2007-11-21 | 西安理工大学 | Heat etching proof surface treatment method of piston combustion chamber for natural gas fual engine |
| WO2011057422A1 (en) * | 2009-11-10 | 2011-05-19 | Unilever Plc | Frost free surfaces and method for manufacturing the same |
| US9371595B2 (en) | 2009-11-10 | 2016-06-21 | Conopco, Inc. | Frost free surfaces and method for manufacturing the same |
| EA026812B1 (en) * | 2009-11-10 | 2017-05-31 | Юнилевер Н.В. | Frost free surfaces and method for manufacturing the same |
| CN106334663A (en) * | 2016-09-23 | 2017-01-18 | 大连理工大学 | Method for creating high-precision extremely-wet patterns on aluminum matrix |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |