NO135032B - - Google Patents
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- NO135032B NO135032B NO741762A NO741762A NO135032B NO 135032 B NO135032 B NO 135032B NO 741762 A NO741762 A NO 741762A NO 741762 A NO741762 A NO 741762A NO 135032 B NO135032 B NO 135032B
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- Prior art keywords
- stated
- treated
- alkaline solution
- minutes
- aluminum
- Prior art date
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- 238000000034 method Methods 0.000 claims description 27
- 239000000243 solution Substances 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 239000012670 alkaline solution Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 8
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 claims description 4
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 claims description 3
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 3
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000011609 ammonium molybdate Substances 0.000 claims description 2
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 2
- 229940010552 ammonium molybdate Drugs 0.000 claims description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 239000002966 varnish Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004532 chromating Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Foreliggende oppfinnelse vedrorer en fremgangsmåte for påforing av matte, sorte omdannelsessjikt på aluminium og legeringer derav. The present invention relates to a method for applying matte, black conversion layers to aluminum and its alloys.
Det er kjent fremgangsmåter for sortfarging av aluminium, hvor fargebadene er oppbygget på grunnlag av ammoniurnmolybdater og ammoniumklorid. De etter denne fremgangsmåte erholdte overtrekk . There are known methods for black dyeing of aluminium, where the dye baths are built up on the basis of ammonium molybdates and ammonium chloride. The overcoats obtained according to this procedure.
er imidlertid dekket med et pulverformet, morkegrått belegg og overtrekkene går lett av ved en deformering. is, however, covered with a powdery, dark gray coating and the covers come off easily when deformed.
Foreliggende oppfinnelse vedrorer således en fremgangsmåte for påforing av matte, sorte omdannelsessjikt, som hefter godt og er ensartede og korrosjonsbestandige, på aluminium og legeringer derav, og det særegne ved fremgangsmåten i henhold til oppfinnelsen er at metalloverflaten ved 70 - 95°C i 1 - 4 minutter beises med en vandig 2-15 vektprosent jernkloridlosning, farges deretter i 0,5 - 10 minutter i et fargebad på 80 - 92°C som inneholder 25-70 g/l ammoniummolybdat og 10 - 100 g/l aluminiumtriklorid og som har en pH-verdi på 2 - 5 og etterbehandles tilslutt i en alkalisk losning på 80 - 92°C. The present invention thus relates to a method for applying matte, black conversion layers, which adhere well and are uniform and corrosion-resistant, to aluminum and its alloys, and the distinctive feature of the method according to the invention is that the metal surface at 70 - 95°C in 1 - 4 minutes stained with an aqueous 2-15% by weight iron chloride solution, then dyed for 0.5 - 10 minutes in a dye bath at 80 - 92°C containing 25-70 g/l ammonium molybdate and 10 - 100 g/l aluminum trichloride and which has a pH value of 2 - 5 and is finally treated in an alkaline solution of 80 - 92°C.
Disse og andre trekk ved fremgangsmåten i henhold til oppfinnelsen fremgår av patentkravene. These and other features of the method according to the invention appear in the patent claims.
Med fremgangsmåten i henhold til oppfinnelsen oppnås fblgende fordeler: With the method according to the invention, the following advantages are achieved:
- På grunn av tilstedeværelsen av aluminiumkloridet i fargebadet - Due to the presence of the aluminum chloride in the dye bath
lar et morkere, ikke pulverformet overtrekk seg fremstille, idet dette overtrekk er reproduserbart, idet dette oftest ikke er tilfellet når metallstykkene behandles i en losning som inneholder andre klorider. - Overraskende kan egenskapene av den erholdte film vesentlig forbedres ved en etterbehandling, spesielt korrosjonsbestandigheten mot alkalier. allows a darker, non-powdery coating to be produced, this coating being reproducible, as this is often not the case when the metal pieces are treated in a solution containing other chlorides. - Surprisingly, the properties of the resulting film can be significantly improved by post-treatment, especially the corrosion resistance against alkalis.
Etter denne fremgangsmåte fremstilte sorte omdannelsessjikt er Black conversion layers produced according to this method are
særlig egnet for reprografiske metoder. particularly suitable for reprographic methods.
En aluminiumplate som bærer et etter en vilkårlig fremgangsmåte erholdte omdannelses- eller A^O^-sjikt, overtrekkes med en fotolakk. Med et negativ blir de steder maskert som senere skal farges sorte. Etter belysningen kan lakken fjernes fra disse steder, mens derimot de ovrige steder er overtrukket med den etter fremkallingen polymeriserte lakk og skjermer det derunder liggende oksyd ved fremgangsmåten for sortfarging. An aluminum plate bearing a conversion or A^O^ layer obtained by any method is coated with a photo varnish. With a negative, the areas that will later be colored black are masked. After the lighting, the varnish can be removed from these places, while the other places are coated with the varnish polymerized after the development and shields the underlying oxide during the process of blacking.
Således kan de sorte flater skarpt avgrenses i forhold til de Thus, the black surfaces can be sharply delineated in relation to them
av fremgangsmåten ikke angrepne, fargelose eller annerledes fargede flater, og dette er f.eks. av betydning ved teksting, raster- of the method not attacked, colorless or differently colored surfaces, and this is e.g. of importance for subtitling, raster
eller linjebilder. or line drawings.
Oppfinnelsen skal forklares nærmere ved hjelp av den etterfblgende beskrivelse. The invention shall be explained in more detail by means of the following description.
De ayfettede gjenstander av aluminium eller en aluminiumlegering beises forst i en 2 - 15%-ig vandig jernkloridlosning som har en temperatur på 70 - 95°C, 1-4 minutter. The greased objects made of aluminum or an aluminum alloy are first stained in a 2 - 15% aqueous ferric chloride solution which has a temperature of 70 - 95°C, 1-4 minutes.
Deretter henges gjenstandene i 0,5 - 10 minutter ned i et fargebad The objects are then hung for 0.5 - 10 minutes in a dye bath
på 80 - 92°C som inneholder 25 - 70 g/l, foretrukket 40 - 60 g/l ammoniumheptamolybdat ((NH4>6 Mo7024 • 4H20) og 10 - 100 g/l, foretrukket 40 - 80 g/l aluminiumtriklorid. pH-verdien i badet ligger mellom 2 og 5, foretrukket mellom 2 og 3, og må ikke i noe s of 80 - 92°C containing 25 - 70 g/l, preferably 40 - 60 g/l ammonium heptamolybdate ((NH4>6 Mo7024 • 4H20) and 10 - 100 g/l, preferably 40 - 80 g/l aluminum trichloride. pH -value in the bathroom is between 2 and 5, preferably between 2 and 3, and must not in any way
tilfelle gå under 2. Med en badtemperatur på 90°C ligger behandlingstiden i molybdatlosningen foretrukket mellom 2 og 8 minutter. Anvendelsen av en lengre behandlingstid bevirker et tykkere, blåsort overtrekk, som ikke hefter til underlaget. case go below 2. With a bath temperature of 90°C, the treatment time in the molybdate solution is preferably between 2 and 8 minutes. The use of a longer processing time results in a thicker, blue-black coating, which does not adhere to the substrate.
For forbedring: av korrosjonsbestandigheten etterbehandles gjenstandene deretter i 0,5 - 3 minutter i en vandig alkalisk losning ved 80 - 92°C. Behandlingstemperaturen er av storste viktighet og ligger foretrukket mellom 85 og 92°C, ved hoyere temperaturer blir overtrekket blått og hefter mindre godt, og under 80°C foregås reaksjonen for sakte. For improvement: of the corrosion resistance, the objects are then post-treated for 0.5 - 3 minutes in an aqueous alkaline solution at 80 - 92°C. The treatment temperature is of the greatest importance and is preferably between 85 and 92°C, at higher temperatures the coating becomes blue and adheres less well, and below 80°C the reaction takes place too slowly.
Den alkaliske losning kan enten inneholde 10 - 20 g/l, foretrukket 13-17 g/l natriumkromat og 30 - 70 g/l, foretrukket 40 - 50 g/l natriumkarbonat, eller den kan bestå av en losning av ammoniakk eller et ammoniakkderivat, f.eks. hydrazin eller hydroksylamin, The alkaline solution can either contain 10 - 20 g/l, preferably 13-17 g/l sodium chromate and 30 - 70 g/l, preferably 40 - 50 g/l sodium carbonate, or it can consist of a solution of ammonia or an ammonia derivative , e.g. hydrazine or hydroxylamine,
med en konsentrasjon på 10 - 20 g/l. with a concentration of 10 - 20 g/l.
Eksempel 1. Example 1.
Blikk av en Al-legering med 4,3% Cu, 1,5% Mg, 0,6% Mn, 0,4% Fe og 0,3% Si, med dimensjonene 100*70#1 mm, henges etter avfetting i 3 minutter ved 91°C ned i en 5% jernkloridlosning. Etter avspyling med kaldt vanlig vann behandles blikkene med en losning av 5% ammoniumheptamolybdat og 6% aluminiumklorid i 3 minutter ved 91°C. Blikkene erholder et gråsort overtrekk. Tin of an Al alloy with 4.3% Cu, 1.5% Mg, 0.6% Mn, 0.4% Fe and 0.3% Si, with dimensions 100*70#1 mm, is hung after degreasing in 3 minutes at 91°C into a 5% ferric chloride solution. After rinsing with cold plain water, the tins are treated with a solution of 5% ammonium heptamolybdate and 6% aluminum chloride for 3 minutes at 91°C. The eyes receive a grey-black coating.
Etter avspylingen med kaldt vann etterbahandles aluminiurirblikkene After rinsing with cold water, the aluminum watches are treated
i 1 minutt med en vandig losning av 1,5% natriumkromat og 5% natriumkarbonat ved en temperatur på 90°C. De erholdte overtekk er glatte og sorte og frembyr særlig gode hefte-muligheter for lakken. for 1 minute with an aqueous solution of 1.5% sodium chromate and 5% sodium carbonate at a temperature of 90°C. The obtained covers are smooth and black and offer particularly good adhesion possibilities for the paint.
Med 1 liter fargebad av den ovennevnte sammensetning kan blikk med en total overflate på 1,03 m 2behandles uten at noen endring av fargetone og sjikttykkelse kan konstateres. Etter 1,05 m 2 er blikkene imidlertid ikke lenger sorte, men begynner tiltagende å bli grå og flekkete. With 1 liter of dye bath of the above-mentioned composition, sheet metal with a total surface of 1.03 m 2 can be treated without any change in color tone and layer thickness being detected. After 1.05 m 2, however, the eyes are no longer black, but increasingly begin to become gray and mottled.
Eksempel 2 Example 2
Dette eksempel viser innvirkningen av etterbehandlingen på korrosjonsbestandigheten. This example shows the effect of the finishing on the corrosion resistance.
Al-blikk med 1,1% Mn, 0,5% Fe, 0,3% Si og 0,1% Cu deles i 4 deler, A, B, C og D. Del A behandles som i eksempel 1, mens del B bearbeides uten etterbehandling. Del C behandles med den såkalte "MBV"- metode (en klassisk alkalisk kromateringsmetode), del D anodiseres og farges sort. • Korrosjonsbestandigheten av de behandlede prover A,.B, C og D proves med saltkammerproven Al tin with 1.1% Mn, 0.5% Fe, 0.3% Si and 0.1% Cu is divided into 4 parts, A, B, C and D. Part A is treated as in example 1, while part B is processed without finishing. Part C is treated with the so-called "MBV" method (a classic alkaline chromating method), part D is anodized and colored black. • The corrosion resistance of the treated samples A,.B, C and D is tested with the salt chamber test
(2% NaCl ved 35°C), Kesternich-proven (kunstig industriatmosfære med både 0,66 volumprosent SC^ og CC^) og alkaliproven (2% Na3P04). Resultatene er oppfort i tabellene 1 til 3. (2% NaCl at 35°C), the Kesternich sample (artificial industrial atmosphere with both 0.66 volume percent SC^ and CC^) and the alkali sample (2% Na3PO4). The results are listed in tables 1 to 3.
Tabellene 1 og 2 viser et prbven A med hensyn til korrosjonsbestandighet i salttåkekammer og Kesternich-proven ikke skiller seg vesentlig fra provene C (klassisk alkalisk kromateringsmetode) Tables 1 and 2 show a test A with respect to corrosion resistance in a salt spray chamber and the Kesternich test does not differ significantly from test C (classical alkaline chromating method)
og D (anodisert og deretter farget sort ved hjelp av en vanlig metode), selv om disse horer til dé beste kjente metoder. and D (anodized and then dyed black using a common method), although these belong to the best known methods.
Av tabell 3 fremgår at anodiserte blikk (som eksempel prove D) har en liten alkalibestandighet og, sammenlignet med prove A, har lidt et stort vekttap. Table 3 shows that anodized sheets (such as sample D) have a low alkali resistance and, compared to sample A, have suffered a large weight loss.
Fremgangsmåten i henhold til oppfinnelsen er altså minst likeverdig med andre metoder med hensyn til korrosjonsbestandighet, men den har fremfor disse den fordel, at den er problemlos og lar seg anvende på en enkel måte for reprografiske formål. The method according to the invention is thus at least equivalent to other methods with respect to corrosion resistance, but it has the advantage over these that it is problem-free and can be used in a simple way for reprographic purposes.
Eksempel 3. Example 3.
Dette eksempel viser innvirkningen av behandlingstiden i fargebadet på veksten av sjiktet ved konstant temperatur. Provene behandles som i eksempel 1, og resultatene er oppfort i tabellene 4, 5 og 6. Generelt kan nesten alle aluminiumlegeringer farges sorte. Den avgjorende parameter er behandlingstiden, idet kinetikken ved dannelsen av overtrekket er avhengig av legerings-sammensetningen. This example shows the influence of the treatment time in the dye bath on the growth of the layer at constant temperature. The samples are treated as in Example 1, and the results are listed in Tables 4, 5 and 6. In general, almost all aluminum alloys can be dyed black. The decisive parameter is the treatment time, as the kinetics of the formation of the coating depends on the alloy composition.
Eksempel 4. Example 4.
Fargelose anodiserte plater av 99,5% renaluminium overtrekkes ved en kjent fremgangsmåte med fotolakk, deretter legges et negativ på lakken og belyses. Etter fremkallingen etses bare de ikke-belyste flater alkalisk for fjernelse av det fargelose oksydsjikt, de ovrige steder er beskyttet av den polymerisérte lakk. Colorless anodized sheets of 99.5% pure aluminum are coated using a known method with photo varnish, then a negative is placed on the varnish and illuminated. After development, only the non-illuminated surfaces are etched alkaline to remove the colorless oxide layer, the other areas are protected by the polymerized varnish.
Plater behandlet på denne måte forbehandles i 3 minutter ved 87°C i en 5% jernkloridlosning, henges deretter i 3 - 4 minutter i et fargebad som i eksempel 1 og etterbehandles til slutt ganske kort, Plates treated in this way are pre-treated for 3 minutes at 87°C in a 5% ferric chloride solution, then hung for 3 - 4 minutes in a dye bath as in example 1 and finally post-treated quite briefly,
i 0,5 til 1 minutt, i en 2% vandig hydrazinlosning. Således kan de tidligere ikke belyste flater farges sorte, uten at det på de ovrige plater kan iakttas noen endring av det anodiske sjikt. for 0.5 to 1 minute, in a 2% aqueous hydrazine solution. Thus, the previously unilluminated surfaces can be colored black, without any change of the anodic layer being observed on the other plates.
Claims (7)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH703573A CH584762A5 (en) | 1973-05-17 | 1973-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO135032B true NO135032B (en) | 1976-10-18 |
| NO135032C NO135032C (en) | 1977-01-26 |
Family
ID=4318919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO741762A NO135032C (en) | 1973-05-17 | 1974-05-15 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3920488A (en) |
| AT (1) | AT328246B (en) |
| BE (1) | BE815058A (en) |
| BR (1) | BR7403995D0 (en) |
| CA (1) | CA1030409A (en) |
| CH (1) | CH584762A5 (en) |
| DE (1) | DE2419819C2 (en) |
| ES (1) | ES426179A1 (en) |
| FR (1) | FR2229786B1 (en) |
| GB (1) | GB1416417A (en) |
| IT (1) | IT1012497B (en) |
| NL (1) | NL7406676A (en) |
| NO (1) | NO135032C (en) |
| SE (1) | SE397968B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2959683B2 (en) * | 1991-04-30 | 1999-10-06 | 三井鉱山株式会社 | Method for producing high-purity alumina fiber molded body |
| JP3325334B2 (en) * | 1993-04-28 | 2002-09-17 | 日本パーカライジング株式会社 | Bright blue treatment method for hot-dip zinc-aluminum alloy plated steel sheet |
| DE29912766U1 (en) | 1999-07-21 | 1999-12-23 | Frank, Thomas, 55120 Mainz | Dark metal foil to increase the absorption and emissivity of heat radiation |
| US7641743B2 (en) * | 2003-06-05 | 2010-01-05 | Metal Coatings International Inc. | Compositions and methods for darkening and imparting corrosion-resistant properties to zinc or other active metals |
| DE102011080750A1 (en) * | 2011-08-10 | 2013-02-14 | Aktiebolaget Skf | Method for increasing the resistance of a burnishing layer and component with a burnishing layer |
| DE102012204409B3 (en) | 2012-03-20 | 2013-09-19 | Aktiebolaget Skf | Method for producing a rolling bearing and rolling bearing |
| DE102013201321A1 (en) | 2013-01-28 | 2014-07-31 | Aktiebolaget Skf | Method for producing a rolling bearing and rolling bearing |
| CN106383048B (en) * | 2016-09-07 | 2018-09-11 | 济南大学 | A kind of preparation for petrographic detector identification aluminophosphates mineral etchant |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE480995C (en) * | 1926-04-16 | 1929-08-13 | Aladar Pacz Dr | Process for coating and coloring metals |
| DE712877C (en) * | 1939-03-11 | 1941-10-27 | Bosch Gmbh Robert | Process for the production of black-colored, corrosion-resistant protective layers on the surface of objects made of aluminum or aluminum alloys |
| US2285468A (en) * | 1941-07-08 | 1942-06-09 | Aluminum Co Of America | Surface treatment for aluminum |
| DE762459C (en) * | 1942-07-17 | 1953-01-26 | Bosch Gmbh Robert | Process for coloring aluminum and its alloys black |
| US2554256A (en) * | 1948-05-15 | 1951-05-22 | Westinghouse Electric Corp | Process for treating aluminum to provide selective coloration of portions thereof |
| DE1277646B (en) * | 1963-06-27 | 1968-09-12 | Metallgesellschaft Ag | Process for increasing the corrosion resistance of surfaces made of aluminum and aluminum alloys |
| US3326728A (en) * | 1963-08-06 | 1967-06-20 | Olin Mathieson | Colored aluminum and process therefor |
| US3833374A (en) * | 1970-07-14 | 1974-09-03 | Metalphoto Corp | Coloring of anodized aluminum |
| US3799815A (en) * | 1971-12-15 | 1974-03-26 | C Subramaniam | Coloring of aluminum and its alloys |
-
1973
- 1973-05-17 CH CH703573A patent/CH584762A5/xx not_active IP Right Cessation
-
1974
- 1974-04-24 DE DE2419819A patent/DE2419819C2/en not_active Expired
- 1974-04-25 US US464328A patent/US3920488A/en not_active Expired - Lifetime
- 1974-05-10 ES ES426179A patent/ES426179A1/en not_active Expired
- 1974-05-10 GB GB2083874A patent/GB1416417A/en not_active Expired
- 1974-05-15 BE BE144336A patent/BE815058A/en unknown
- 1974-05-15 NO NO741762A patent/NO135032C/no unknown
- 1974-05-16 SE SE7406541A patent/SE397968B/en unknown
- 1974-05-16 BR BR3995/74A patent/BR7403995D0/en unknown
- 1974-05-16 AT AT406074A patent/AT328246B/en not_active IP Right Cessation
- 1974-05-16 CA CA200,146A patent/CA1030409A/en not_active Expired
- 1974-05-17 FR FR7417376A patent/FR2229786B1/fr not_active Expired
- 1974-05-17 NL NL7406676A patent/NL7406676A/xx not_active Application Discontinuation
- 1974-05-17 IT IT22896/74A patent/IT1012497B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BE815058A (en) | 1974-09-02 |
| NO135032C (en) | 1977-01-26 |
| CH584762A5 (en) | 1977-02-15 |
| IT1012497B (en) | 1977-03-10 |
| US3920488A (en) | 1975-11-18 |
| GB1416417A (en) | 1975-12-03 |
| DE2419819C2 (en) | 1984-05-24 |
| SE397968B (en) | 1977-11-28 |
| FR2229786A1 (en) | 1974-12-13 |
| CA1030409A (en) | 1978-05-02 |
| DE2419819A1 (en) | 1974-12-05 |
| BR7403995D0 (en) | 1974-12-03 |
| AT328246B (en) | 1976-03-10 |
| FR2229786B1 (en) | 1979-05-11 |
| NL7406676A (en) | 1974-11-19 |
| ES426179A1 (en) | 1976-07-01 |
| ATA406074A (en) | 1975-05-15 |
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