NO125686B - - Google Patents
Download PDFInfo
- Publication number
- NO125686B NO125686B NO2483/70A NO248370A NO125686B NO 125686 B NO125686 B NO 125686B NO 2483/70 A NO2483/70 A NO 2483/70A NO 248370 A NO248370 A NO 248370A NO 125686 B NO125686 B NO 125686B
- Authority
- NO
- Norway
- Prior art keywords
- sealing
- acid
- aluminum
- water
- solution
- Prior art date
Links
- 238000007789 sealing Methods 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 229920002125 Sokalan® Polymers 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- 239000004584 polyacrylic acid Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 10
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 3
- 239000010407 anodic oxide Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SDGNNLQZAPXALR-UHFFFAOYSA-N 3-sulfophthalic acid Chemical compound OC(=O)C1=CC=CC(S(O)(=O)=O)=C1C(O)=O SDGNNLQZAPXALR-UHFFFAOYSA-N 0.000 description 1
- HVBSAKJJOYLTQU-UHFFFAOYSA-N 4-aminobenzenesulfonic acid Chemical compound NC1=CC=C(S(O)(=O)=O)C=C1 HVBSAKJJOYLTQU-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- YVIMHTIMVIIXBQ-UHFFFAOYSA-N [SnH3][Al] Chemical compound [SnH3][Al] YVIMHTIMVIIXBQ-UHFFFAOYSA-N 0.000 description 1
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000002048 anodisation reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229940078494 nickel acetate Drugs 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229950000244 sulfanilic acid Drugs 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
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
- C25D11/18—After-treatment, e.g. pore-sealing
- C25D11/24—Chemical after-treatment
- C25D11/246—Chemical after-treatment for sealing layers
Description
Fremgangsmåte til behandling a<y> overflater av Method of treatment a<y> surfaces of
aluminium eller aluminiumlegeringer. aluminum or aluminum alloys.
Oppfinnelsen vedrører en fremgangsmåte til behandling av overflater av aluminium eller aluminiumlegeringer ved anodisk frembringelse av oksydsjikt med en etterfølgende tetning ved hjelp av vann eller vanndamp, idet det hindres opptreden av aluminiumhydroksyd-belegg ("forseglingsbelegg"). The invention relates to a method for treating surfaces of aluminum or aluminum alloys by anodic production of an oxide layer with a subsequent seal by means of water or steam, preventing the occurrence of aluminum hydroxide coating ("sealing coating").
På aluminiumflaten påføres for korrosjonsbeskyttelse ofte anodisk frembragte oksydsj.ikt. Disse oksydsjikt beskytter aluminiumoverflaten mot klimainnvirkning og andre korroderende medier. Videre påføres de anodiske oksydsjikt også for å oppnå en hårdere overflate og dermed å oppnå en øket slitasjefasthet av aluminium. Anodically produced oxide layers are often applied to the aluminum surface for corrosion protection. These oxide layers protect the aluminum surface against climatic influences and other corrosive media. Furthermore, the anodic oxide layers are also applied to achieve a harder surface and thus to achieve an increased wear resistance of aluminium.
Ved oksydsjiktenes farge resp. deres delvis lette innfargbarhet lar det seg oppnå spesielt dekorative effekter. By the color of the oxide layers or their partly easy dyeability makes it possible to achieve particularly decorative effects.
For påføringen>ay anodiske oksydsjikt på aluminium er det kjent en rekke fremgangsmåter. Eksempelvis foregår frembringel-sen av oksydsjikt med likestrøm i oppløsninger av svovelsyre (like-strøm-svovelsyre-fremgangsmåten). Ofte anvendes imidlertid også oppløsninger av organiske syrer som spesielt sulfoftalsyre resp. sulfanilsyre eller også disse i blanding med svovelsyre. De sist-nevnte fremgangsmåter er spesielt kjent som hårdanodiseringsfrem-gangsmåter. A number of methods are known for the application of anodic oxide layers on aluminium. For example, the production of an oxide layer takes place with direct current in solutions of sulfuric acid (the direct current sulfuric acid method). Often, however, solutions of organic acids are also used, such as particularly sulfophthalic acid or sulphanilic acid or these in a mixture with sulfuric acid. The last-mentioned methods are particularly known as hard anodizing methods.
Disse anodisk påførte oksydsjikt oppfyller imidlertid ikke alle krav med hensyn til korrosjonsbeskyttelse, da de har en porøs struktur. Av denne grunn er det nødvendig å ettertette oksyd-sjiktene. Denne ettertetning foretas med varmt resp. kokende vann eller vanndamp og betegnes ofte som "forsegling". Herved lukkes porene og dermed økes korrosjonsbeskyttelsen betraktelig. However, these anodically applied oxide layers do not meet all requirements with regard to corrosion protection, as they have a porous structure. For this reason, it is necessary to seal the oxide layers. This sealing is done with hot or boiling water or steam and is often referred to as "sealing". This closes the pores and thus increases corrosion protection considerably.
Ved ettertetning av anodisk påførte oksydsjikt lukkes imidlertid ikke bare porene, men det danner seg også-på den samlede flate et mer eller mindre tykt fløyelslignende belegg, det såkalte "forseglingsbelegg". Dette består av amorft aluminiumhydroksyd og er ikke gripefast, sSLedes at den dekorative effekt av sjiktet herved influeres. Av denne grunn var det hittil nødvendig å fjerne dette belegg mekanisk for hånden. When resealing an anodically applied oxide layer, however, not only the pores are closed, but a more or less thick velvet-like coating, the so-called "sealing coating", is also formed on the overall surface. This consists of amorphous aluminum hydroxide and is not grip-resistant, so that the decorative effect of the layer is thereby influenced. For this reason, it has hitherto been necessary to remove this coating mechanically by hand.
Oppfinnelsen vedrører altså en fremgangsmåte til behandling av overflater av aluminium eller aluminiumlegeringer, hvor overflatene oksyderes anodisk og det fremstilte oksydsjikt tettes ved hjelp av vann eller vanndamp, idet fremgangsmåten er karakterisert ved at overflatene før tetningen, eller når tetningsmidlet er vann, eventuelt samtidig med tetningen, behandles med en vandig oppløsning av en temperatur mellom 15 og 95°C, som inneholder 0,01-10 g/l akrylsyre og/eller polymerisater av akrylsyre, av metakrylsyre resp. av maleinsyre med spesifikk viskositet inntil. The invention therefore relates to a method for treating surfaces of aluminum or aluminum alloys, where the surfaces are oxidized anodically and the produced oxide layer is sealed using water or steam, the method being characterized in that the surfaces before the sealing, or when the sealing agent is water, possibly simultaneously with the sealing , is treated with an aqueous solution of a temperature between 15 and 95°C, which contains 0.01-10 g/l acrylic acid and/or polymers of acrylic acid, of methacrylic acid resp. of maleic acid with specific viscosity up to.
0,75 cP ved 0, 7%- ig oppløsning i 2N natronlut ved 20°C. 0.75 cP at 0.7% solution in 2N caustic soda at 20°C.
For gjennomføring av denne fremgangsmåte kan det anvendes akrylsyre og polymerisater av akryl-, metakryl- og maleinsyre. Acrylic acid and polymers of acrylic, methacrylic and maleic acid can be used to carry out this method.
Ved polymerisatene av maleinsyre kan det dreie seg om rene. eller blandingspolymerisater som eksempelvis med etylen eller vinylalkohol. Det har vist seg som hensiktsmessig å anvende slike polymerisater hvis spesifikke viskositet ikke overskrider en verdi på 0,75 cP. Herved er hver gang den spesifikke viskositet målt på en 0, 7%- ig opp-løsning i 2N natronlut ved 20°C. The polymers of maleic acid may be pure. or mixed polymers such as, for example, with ethylene or vinyl alcohol. It has proven appropriate to use such polymers whose specific viscosity does not exceed a value of 0.75 cP. Hereby each time the specific viscosity is measured on a 0.7% solution in 2N caustic soda at 20°C.
Fortrinnsvis gjennomføres mellombehandlingen med opp-løsninger som inneholder polyakrylsyre. og/eller polymetakrylsyre med spesifikk viskositet på n = 0,05 til 0,25 cP. The intermediate treatment is preferably carried out with solutions containing polyacrylic acid. and/or polymethacrylic acid with a specific viscosity of n = 0.05 to 0.25 cP.
Mellombehandlingsoppløsningen inneholder 0,1 til 10 The intermediate treatment solution contains 0.1 to 10
g/l av nevnte forbindelser, som kan anvendes enkeltvis eller i blanding. Det er selvsagt mulig også å anvende større mengder, imidlertid medfører dette ingen ytterligere fordeler. g/l of said compounds, which can be used individually or in a mixture. It is of course also possible to use larger quantities, however this does not entail any further advantages.
De ovennevnte oppløsninger for mellombehandlingen har en pH-verdi som ligger mellom 5 og 6. Denne pH-verdi har vist seg som hensiktsmessig, således at det ikke er nødvendig med en ekstra pH-innstilling. En slik pH-verdi bør imidlertid innstilles hvis det ved fremstilling av oppløsningene istedenfor syrene gåes ut fra de tilsvarende vannoppløselige salter som kalium-, natrium- eller ammoniumsalter. Vanligvis er en slik arbeidsmåte ikke hensiktsmessig, da herved nøytralsaltene kommer inn i oppløsningene. Por fremstillingen av oppløsningene er det ofte fordelaktig når det anvendes fullavsaltet resp. destillert eller kondensvann. The above-mentioned solutions for the intermediate treatment have a pH value that lies between 5 and 6. This pH value has proven to be appropriate, so that an additional pH setting is not necessary. However, such a pH value should be set if, when preparing the solutions, instead of the acids, the starting point is the corresponding water-soluble salts such as potassium, sodium or ammonium salts. Usually, such a method of working is not appropriate, as this way the neutral salts get into the solutions. For the preparation of the solutions, it is often advantageous when fully desalted or distilled or condensed water.
Mellombehandlingen gjennomføres ved temperaturer mellom 15 og 95°C, fortrinnsvis ved temperaturer over 50°C, idet de anodi-serte gjenstander av aluminium eller aluminiumlegeringer inndyppes i oppløsningene eller besprøytes hermed. Behandlingsvarigheten ligger vanligvis under 10 min. Lengere behandlingstider er uheldig. Etter mellombehandlingen med de ovennevnte oppløsninger kan det foretas en vannspyling for å unngå en medslepning av avspylbare stoffer i ettertetningen. Denne spyling er imidlertid ikke nødvendig. Det fremkommer ingen ulemper når aluminiumdelene med en gang etter mellombehandlingen overføres i ettertetningen. The intermediate treatment is carried out at temperatures between 15 and 95°C, preferably at temperatures above 50°C, with the anodized objects made of aluminum or aluminum alloys being immersed in the solutions or sprayed with them. The treatment duration is usually less than 10 minutes. Longer treatment times are unfortunate. After the intermediate treatment with the above-mentioned solutions, a water rinse can be carried out to avoid entrainment of rinse-off substances in the sealing. However, this flushing is not necessary. There are no disadvantages when the aluminum parts are transferred immediately after the intermediate treatment in the post-sealing.
En spesiell utførelsesform av denne fremgangsmåte består i at ettertetningen med vann og mellombehandlingen gjennomføres i ett arbeidstrinn. I dette tilfelle blandes det for ettertetning beregnede vann med de nevnte forbindelser i de 'anvendte mengder og tetningen gjennomføres på vanlig måte. A special embodiment of this method consists in the sealing with water and the intermediate treatment being carried out in one work step. In this case, water calculated for post-sealing is mixed with the aforementioned compounds in the quantities used and the sealing is carried out in the usual way.
Herved kan ettertetningsoppløsningene videre dessuten også inneholde for dette formål i og for seg kjente tilsetninger som nikkelacetat i små mengder. Ved den nye fremgangsmåte er det mulig å hindre dannelsen av forseglingsbelegg uten at det anodiske oksydsjikt influeres eller ettertetningens kvalitet nedsettes. Ut-seende av overflaten influeres ikke ved fremgangsmåten ifølge oppfinnelsen, det bibeholdes de effekter som ble oppnådd ved forbehand-ling og anodisering. Hereby, the resealing solutions can furthermore also contain additives known per se for this purpose, such as nickel acetate in small quantities. With the new method, it is possible to prevent the formation of sealing coatings without affecting the anodic oxide layer or reducing the quality of the reseal. The appearance of the surface is not influenced by the method according to the invention, the effects achieved by pretreatment and anodization are maintained.
I følgende eksempler ble oksydsjiktenes kvalitet be-stemt ved den såkalte testalverdi ifølge DIN 50 9^ 9- Verdier som ifølge denne prøve ligger over 15, er teknisk ikke tilfredsstillende. Betegnelsen av aluminiumlegeringene i eksemplene foregår ifølge DIN 1725. In the following examples, the quality of the oxide layers was determined by the so-called test value according to DIN 50 9^ 9- Values which, according to this test, are above 15, are technically not satisfactory. The designation of the aluminum alloys in the examples takes place according to DIN 1725.
Eksempel 1. Example 1.
På vanlig måte alkalisk avfettet og beiset aluminium-profil (Al Mg Si 0,5), som var anodisk oksydert ved hårdanodiserings-fremgangsmåten (sjikttykkelse 29/Um), ble behandlet med en oppløs-ning av 5,0 g/l polyakrylsyre (n = 0,08 cP i 0,7%-ig oppløsning i 2N NaOH ved 20°C) i fullavsaltet vann ved 80°C i 10 minutter. Etter In the usual way, alkaline degreased and stained aluminum profile (Al Mg Si 0.5), which was anodically oxidized by the hard anodizing method (layer thickness 29/Um), was treated with a solution of 5.0 g/l polyacrylic acid ( n = 0.08 cP in 0.7% solution in 2N NaOH at 20°C) in fully desalted water at 80°C for 10 minutes. After
en mellomspyling ble aluminiumdelene tettet i varmt vann (100°C, an intermediate rinse, the aluminum parts were sealed in hot water (100°C,
60 min.). Deretter har profilene ingen forseglingsbelegg. Sjikt-tykkelsene utgjorde etter tetningen 29/Um, testalverdien var falt fra over 200 til 7,5- 60 min.). The profiles then have no sealing coating. The layer thicknesses after the sealing amounted to 29/Um, the testal value had fallen from over 200 to 7.5-
Eksempel 2. Example 2.
På vanlig måte avfettede aluminiumproÆiler (Al Mg 3), som var anodisk oksydert ved likestrøm-svovelsyre-fremgangsmåten (sj ikttykkelse 20^,um), ble behandlet med en oppløsning av 0,2 g/l polyakrylsyre (n = 0,5 cP i 0,7#-ig oppløsning i 2N NaOH ved 20°C) Conventionally degreased aluminum profiles (Al Mg 3 ), which were anodically oxidized by the direct current sulfuric acid method (layer thickness 20 µm), were treated with a solution of 0.2 g/l polyacrylic acid (n = 0.5 cP in 0.7#-ig solution in 2N NaOH at 20°C)
i destillert vann ved 50°C i 5 minutter. Etter en mellomspyling ble aluminiumdelene tettet i vanndamp i 60 min. Deretter viste profilene ingen forseglingsbelegg. Sjikttykkelsen utgjorde etter tetning 20/fum og testalverdien var falt fra over 200 til 6,0. in distilled water at 50°C for 5 minutes. After an intermediate rinse, the aluminum parts were sealed in water vapor for 60 min. Thereafter, the profiles showed no sealing coating. The layer thickness after sealing was 20/fum and the testal value had fallen from over 200 to 6.0.
Eksempel 3- Example 3-
På vanlig måte alkalisk avfettet og beiset aluminium-blikk (Al Si 5), som var anodisk oksydert ved likestrøm-svoveloksal-fremgangsmåten (sjikttykkelse 15^um) ble tettet i en oppløsning med 1,0 g/l polymetakrylsyre (n = 0,10 cP i 0,7#-ig oppløsning i 2N NaOH ved 20°C) i fullavsaltet vann ved 100°C i 60 minutter. Blikkene viste ingen forseglingsbelegg. Sjikttykkelsen utgjorde etter tetning 13^ um, testalverdien var falt fra over 200 til 10,0. In the usual way, alkaline degreased and stained aluminum tin (Al Si 5 ), which had been anodically oxidized by the direct current sulfur oxal process (layer thickness 15 µm) was sealed in a solution of 1.0 g/l polymethacrylic acid (n = 0, 10 cP in 0.7#-ig solution in 2N NaOH at 20°C) in fully desalted water at 100°C for 60 minutes. The looks showed no sealing coating. The layer thickness after sealing was 13 µm, the testal value had fallen from over 200 to 10.0.
Eksempel ^. Example ^.
På vanlig måte alkalisk avfettet og beiset aluminium-profil (Al Mg Si 0,5), som var anodisk oksydert ved likestrøm-svovel-syrefremgangsmåten (sjikttykkelse 20-30^um), ble tettet i oppløs-ninger som inneholdt 5 g/l av i den følgende tabell angitte kjemi-kalier og var innstilt på en pH-verdi på 5-6 ved 100°C i 6 minutter, resp. forbehandlet i oppløsningene ved 80°C i 10 minutter og etter en mellomspyling tettet i varmt vann ved 100°C i 60 minutter. Sjikttykkelsen forble uforandret etter tetningen ved de enkelte profiler. Dannelsen resp. hindring av forseglingsbelegg og de forskjellige kvaliteter av tetningene målt ved hjelp av testalverdien, er opp-stilt i tabellen. Bare ved anvendelse av forbindelsene ifølge oppfinnelsen inntrer det ingen forseglingsbelegg og ingen skadelige inn-virknigner på ettertetningen. In the usual way, alkaline degreased and stained aluminum profile (Al Mg Si 0.5), which was anodically oxidized by the direct current sulfuric acid method (layer thickness 20-30 µm), was sealed in solutions containing 5 g/l of the chemicals specified in the following table and was set to a pH value of 5-6 at 100°C for 6 minutes, resp. pretreated in the solutions at 80°C for 10 minutes and after an intermediate rinse sealed in hot water at 100°C for 60 minutes. The layer thickness remained unchanged after sealing at the individual profiles. The formation or obstruction of the sealing coating and the different qualities of the seals measured using the testal value are listed in the table. Only by using the compounds according to the invention, no sealing coating occurs and no harmful effects on the sealing.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1938039A DE1938039C3 (en) | 1969-07-26 | 1969-07-26 | Process for the treatment of anodically oxidized aluminum surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
NO125686B true NO125686B (en) | 1972-10-16 |
Family
ID=5740973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO2483/70A NO125686B (en) | 1969-07-26 | 1970-06-25 |
Country Status (15)
Country | Link |
---|---|
US (1) | US3672966A (en) |
JP (1) | JPS4947618B1 (en) |
AT (1) | AT295952B (en) |
BE (1) | BE753900A (en) |
CA (1) | CA922262A (en) |
CH (1) | CH558427A (en) |
DE (1) | DE1938039C3 (en) |
ES (1) | ES382171A1 (en) |
FR (1) | FR2053182B1 (en) |
GB (1) | GB1265424A (en) |
NL (1) | NL168015C (en) |
NO (1) | NO125686B (en) |
SE (1) | SE367439B (en) |
YU (1) | YU34914B (en) |
ZA (1) | ZA705096B (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4024039A (en) * | 1972-08-31 | 1977-05-17 | Honny Chemicals Company, Ltd. | Coloring methods for aluminum and aluminum alloys |
US3961111A (en) * | 1975-03-18 | 1976-06-01 | Pennwalt Corporation | Method of increasing corrosion resistance of anodized aluminum |
US4310390A (en) * | 1977-08-10 | 1982-01-12 | Lockheed Corporation | Protective coating process for aluminum and aluminum alloys |
US4130466A (en) * | 1978-05-31 | 1978-12-19 | The United States Of America As Represented By The Secretary Of The Navy | Antifouling coating for aluminum structures |
DE3126626A1 (en) | 1981-07-06 | 1983-01-20 | Hoechst Ag, 6000 Frankfurt | HYDROPHILIZED CARRIER MATERIALS FOR OFFSET PRINTING PLATES, A METHOD FOR THEIR PRODUCTION AND THEIR USE |
DE3126636A1 (en) | 1981-07-06 | 1983-01-27 | Hoechst Ag, 6000 Frankfurt | HYDROPHILIZED CARRIER MATERIALS FOR OFFSET PRINTING PLATES, A METHOD FOR THEIR PRODUCTION AND THEIR USE |
EP0072384A1 (en) * | 1981-08-14 | 1983-02-23 | Cowa chemische Fabrikation GmbH | Preserving means for metal surfaces and process for coating the same |
DE3434668A1 (en) * | 1984-09-21 | 1986-04-03 | Henkel KGaA, 4000 Düsseldorf | PRESERVATIVES FOR ALUMINUM SURFACES |
DE4023270A1 (en) * | 1990-07-21 | 1992-02-06 | Hoechst Ag | HYDROPHILIC MIXED POLYMERS AND THEIR USE IN REPROGRAPHY |
DE4023267A1 (en) * | 1990-07-21 | 1992-01-23 | Hoechst Ag | PLATE, FILM OR TAPE-BASED CARRIER MATERIAL FOR OFFSET PRINT PLATES, METHOD FOR THE PRODUCTION THEREOF AND THEIR USE |
US5262244A (en) * | 1990-07-21 | 1993-11-16 | Hoechst Aktiengesellschaft | Hydrophilic copolymers and their use in reprography |
DE4023269A1 (en) * | 1990-07-21 | 1992-01-23 | Hoechst Ag | HYDROPHILIC MIXED POLYMERS AND THEIR USE IN REPROGRAPHY |
DE4023271A1 (en) * | 1990-07-21 | 1992-01-23 | Hoechst Ag | Thermosetting hydrophilic copolymer - having acid and basic side gps. and N-butoxy-methyl-carbamoyl gps., used for treating lithographic substrate |
US6410197B1 (en) | 1998-09-18 | 2002-06-25 | Lexmark International, Inc. | Methods for treating aluminum substrates and products thereof |
JP3803353B2 (en) * | 2003-06-17 | 2006-08-02 | 中国電化工業株式会社 | Surface-treated aluminum material and manufacturing method thereof |
CN109518252B (en) * | 2017-09-18 | 2021-05-21 | 中铝材料应用研究院有限公司 | High-adhesion and corrosion-resistant anodic oxidation method based on aluminum alloy |
CN109518253B (en) * | 2017-09-18 | 2021-05-21 | 中铝材料应用研究院有限公司 | High-adhesion and corrosion-resistant anodic oxidation method based on aluminum alloy surface |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1246106A (en) * | 1957-04-12 | 1960-11-18 | Pechiney Prod Chimiques Sa | Protection of metal surfaces |
FR1255294A (en) * | 1960-04-25 | 1961-03-03 | Improvement in the surface treatment of light aluminum-based alloys |
-
1969
- 1969-07-26 DE DE1938039A patent/DE1938039C3/en not_active Expired
-
1970
- 1970-06-25 NO NO2483/70A patent/NO125686B/no unknown
- 1970-06-25 SE SE08849/70A patent/SE367439B/xx unknown
- 1970-06-25 NL NL7009365A patent/NL168015C/en not_active IP Right Cessation
- 1970-07-08 US US53318A patent/US3672966A/en not_active Expired - Lifetime
- 1970-07-10 CA CA087884A patent/CA922262A/en not_active Expired
- 1970-07-17 YU YU1817/70A patent/YU34914B/en unknown
- 1970-07-23 AT AT674470A patent/AT295952B/en not_active IP Right Cessation
- 1970-07-24 ZA ZA705096A patent/ZA705096B/en unknown
- 1970-07-24 GB GB1265424D patent/GB1265424A/en not_active Expired
- 1970-07-24 BE BE753900D patent/BE753900A/en not_active IP Right Cessation
- 1970-07-24 FR FR707027364A patent/FR2053182B1/fr not_active Expired
- 1970-07-24 CH CH1130470A patent/CH558427A/en not_active IP Right Cessation
- 1970-07-24 ES ES382171A patent/ES382171A1/en not_active Expired
- 1970-07-27 JP JP45065677A patent/JPS4947618B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
ZA705096B (en) | 1971-04-28 |
JPS4947618B1 (en) | 1974-12-17 |
AT295952B (en) | 1972-01-25 |
FR2053182A1 (en) | 1971-04-16 |
YU181770A (en) | 1979-10-31 |
NL7009365A (en) | 1971-01-28 |
US3672966A (en) | 1972-06-27 |
YU34914B (en) | 1980-04-30 |
CH558427A (en) | 1975-01-31 |
GB1265424A (en) | 1972-03-01 |
NL168015C (en) | 1982-02-16 |
FR2053182B1 (en) | 1973-05-25 |
BE753900A (en) | 1971-01-25 |
SE367439B (en) | 1974-05-27 |
NL168015B (en) | 1981-09-16 |
CA922262A (en) | 1973-03-06 |
DE1938039C3 (en) | 1978-04-06 |
DE1938039B2 (en) | 1971-10-21 |
ES382171A1 (en) | 1972-11-01 |
DE1938039A1 (en) | 1971-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
NO125686B (en) | ||
US4184926A (en) | Anti-corrosive coating on magnesium and its alloys | |
US3961111A (en) | Method of increasing corrosion resistance of anodized aluminum | |
US4042468A (en) | Process for electrolytically coloring aluminum and aluminum alloys | |
US2647865A (en) | Brightening aluminum and aluminum alloy surfaces | |
US3838023A (en) | Sealing anodized aluminum | |
CN107604414B (en) | Aluminum and aluminum alloy anodic oxidation high-temperature nickel-free sealing agent | |
CN106191959A (en) | A kind of environment-friendly type aluminium alloy sealing agent | |
JPS6041155B2 (en) | A method of treating aluminum surfaces by oxidizing and subsequently sealing them. | |
KR20080059468A (en) | Method for improving the corrosion resistance and lightfastness of painted aluminum oxide layers | |
US2987417A (en) | Pigmenting aluminum oxide coating | |
US2548420A (en) | Method of producing lustrous zinc | |
NO833388L (en) | PROCEDURE FOR SURFACE TREATMENT OF ALUMINUM AND ALUMINUM ALLOYS | |
NO141523B (en) | DEVICE FOR LAYING A LONG, FLEXIBLE AND CONNECTED PIPE PIPE | |
NO145475B (en) | PROCEDURE FOR COLORING ALUMINUM OR ALUMINUM ALLOY. | |
US4316780A (en) | Method of producing color-anodized aluminium articles | |
EP0008212A1 (en) | Method of anodising aluminium, novel article with an anodised aluminium surface, and use thereof in alkaline conditions | |
CN110158136A (en) | A kind of aluminium electrolytic coloring titanium color surface treatment method | |
NO125687B (en) | ||
US3785940A (en) | Method for electrolytically treating the surface of a steel plate with a chromate solution | |
US2092034A (en) | Thermal treatment of aluminous metals | |
US2520475A (en) | Process for the chemical oxidation of aluminum and alloys thereof | |
JP2953474B2 (en) | Electrolytic treatment of aluminum and aluminum alloy | |
US2811426A (en) | Treating aluminum surfaces | |
KR102476892B1 (en) | A Aluminium Surface Treating Method Having High Light Stability Using Anodizing |