DE480720C - Process for providing metal that consists predominantly or entirely of aluminum with an irregularly speckled coating - Google Patents
Process for providing metal that consists predominantly or entirely of aluminum with an irregularly speckled coatingInfo
- Publication number
- DE480720C DE480720C DEP54132D DEP0054132D DE480720C DE 480720 C DE480720 C DE 480720C DE P54132 D DEP54132 D DE P54132D DE P0054132 D DEP0054132 D DE P0054132D DE 480720 C DE480720 C DE 480720C
- Authority
- DE
- Germany
- Prior art keywords
- aluminum
- irregularly
- coating
- entirely
- consists predominantly
- 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.)
- Expired
Links
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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- 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
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
-
- 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
- C23C22/34—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 fluorides or complex fluorides
Description
Die vorliegende Erfindung stellt eine Oberflächenbehandlung von Aluminiumgegenständen dar zu dem Zwecke, den Gegenstand zu verzieren und gegen Korrosion beständiger zu machen. Das Verfahren kann für Reinaluminium oder Leichtmetallegierungen benutzt werden. Der Überzug wird auf den Gegenständen durch eine Lösung erzeugt, die Silicium-Fluorid- Salz, ein Alkalisalz und ein Salz der Eisengruppe des periodischen Systems (mit Ausnahme von Eisen) enthält. Von diesen Salzen eignet sich das Natrium- SiIicium-Fluorid am besten, da es am wirtschaftlichsten und am leichtesten erhältlich ist, ohne daß die Erfindung auf dieses Salz beschränkt ist. Als besonders wirkungsvoll hat sich ein Bad mit einer Konzentration von etwa 0,150/0 dieses Salzes erwiesen. Vorzügliche Resultate werden mit den Sulfaten, Nitraten und Chloriden des Nickels und Kobalts bei einer Konzentration von ungefähr o, 2 bis 0,30/0 erreicht. Als Alkalisalze eignen sich sowohl die fixen wie auch die Ammoniumsalze. Es lassen sich auch hier sowohl Phosphate wie Sulfate usw. verwenden, obgleich die Nitrate den günstigsten Effekt bewirken. Die günstigste Konzentration der Alkalisalze liegt bei etwa 10/0. .. Bäder mit höherem und geringerem Prozentsatz als io/o arbeiten auch noch gut. Es ist nur zu beachten, daß das Alkalisalz im Überschuß gegenüber den anderen Salzen vorhanden ist.The present invention provides a surface treatment of aluminum objects for the purpose of decorating the object and making it more resistant to corrosion. The process can be used for pure aluminum or light metal alloys. The coating is produced on the objects by a solution containing silicon fluoride salt, an alkali salt and a salt of the iron group of the periodic table (with the exception of iron). Of these salts, sodium silicon fluoride is the most suitable, since it is the most economical and easiest to obtain, without the invention being restricted to this salt. A bath with a concentration of about 0.150 / 0 of this salt has proven to be particularly effective. Excellent results are achieved with the sulphates, nitrates and chlorides of nickel and cobalt at a concentration of approximately 0.2 to 0.30 / 0. Both the fixed and the ammonium salts are suitable as alkali salts. Here, too, both phosphates and sulfates, etc. can be used, although the nitrates have the most favorable effect. The most favorable concentration of the alkali salts is around 10/0. .. Baths with a higher and lower percentage than io / o also work well. It is only to be noted that the alkali salt is present in excess compared to the other salts.
Die Lösung wird heiß, evtl. bis 1 oo° benutzt und der Gegenstand, der überzogen werden soll, so lange eingetaucht, bis man festgestellt. hat, daß der gewünschte Überzug sich darauf niedergeschlagen hat. Der Überzug, der sich bei dieser Behandlung bildet, hat ein gesprenkeltes, unregelmäßig getupftes, dunkles Aussehen und haftet gut. Er tritt besonders wirksam und dekorativ durch die nicht angegriffenen Aluminiumstellen hervor. Die Wirkungen, die das Bad hervorbringt, sind sowohl von der Konzentration der Lösung als auch von der Höhe der Temperatur abhängig, und zwar zeigt eine konzentrierte und heiße Lösung ein feineres Muster als eine schwächere und kältere Lösung. Die Zeichnungen variieren auch je nach den Mengen der vorhandenen Salze, z. B. ein relativ hoher Fluorsilikatgehalt bewirkt eine feinere Musterung, während ein geringerer Siliciumgehalt größere Zeichnungen bewirkt. Eine Veränderung in den Mengen der Kobalt-Nickel-Salze verursacht ebenfalls eine Änderung der Nuancen. Der Effekt der Alkalisalze scheintThe solution becomes hot, possibly used up to 1 oo ° and the object that is to be coated should, so long immersed, until one found. has the desired coating on it knocked down. The coating that forms during this treatment has a speckled, irregularly spotted, dark appearance and adheres well. It occurs particularly effectively and decorative due to the unaffected aluminum areas. The effects produced by the bath depend on the concentration of the solution as well as on the level of the temperature, and a concentrated and hot solution shows a finer pattern than a weaker one and colder solution. The drawings also vary depending on the quantities of existing ones Salts, e.g. B. a relatively high fluorosilicate content causes a finer pattern, while a lower silicon content results in larger drawings. A change in the amounts of the cobalt-nickel salts also causes a change in the nuances. The effect of the alkali salts appears
einen Einfluß auf die Tiefe der Farbe auszuüben indem geringere Konzentration ein mattes und größere Konzentration ein tiefdunkles Aussehen ergeben. exert an influence on the depth of the color by lowering the concentration matt and greater concentration result in a deep dark appearance.
Der erzeugte Überzug ist gegen Hitze unempfindlich. Durch Behandlung mit einer Stahlbürste werden nur die hellen AluminiumsteEen und nicht die dunklen Muster angegriffen. Bei geeigneter Anwendung des Verfahrens, sei es durch Konzentration oder Temperaturänderungen, wird der Überzug sehr dicht und homogen. Bei der Herstellung der Überzüge muß dem Bade Gelegenheit gegeben werden, mit allen Teilen, die überzogen werden sollen, in Berührung zu kommen. Es ist auch leicht möglich, einige Stellen abzudecken. Die Lösung kann fortwährend benutzt werden und ist sehr ausgiebig, sie wird nur von Zeit zu Zeit durch Zusatz der nötigen Salze erneuert. Ist die Lösung jedoch nach längerem Gebrauch durch die mit Überzug zu versehenden Gegenstände verunreinigt worden, so muß sie eben wieder erneuert werden.The coating produced is insensitive to heat. By treating with a Steel brush, only the light aluminum stones and not the dark patterns are attacked. If the procedure is used appropriately, be it by concentration or temperature changes, the coating becomes very dense and homogeneous. The bathing must be given an opportunity during the production of the coatings to come into contact with all parts to be coated. It is also easily possible to cover some places. The solution can be used continuously and is very extensive, it is only from time to time by adding the necessary Salts renewed. However, after prolonged use, the solution is through those with a coating objects to be provided have been contaminated, they must just be renewed again.
Die so behandelten Gegenstände können als Basis für weitere Färbeverfahren dienen, um den hellen Aluminiumstellen noch andere Nuancen zu geben. Weiterhin können auf den in obengenannter Art behandelten Gegenständen Farben, Lacke, Email leichter aufgetragen werden, da die Haftfähigkeit eine bedeutend größere ist als an einem unbehandelten Gegenstand.The objects treated in this way can serve as the basis for further dyeing processes, to give the light aluminum areas other nuances. You can continue to the objects treated in the above-mentioned manner paints, varnishes, enamel more easily be applied, as the adhesion is significantly greater than on an untreated one Object.
Aluminium und Mumimurnlegierungen, die u. a. enthalten Silicium, Magnesium, Zink, Kupfer, können nach diesem Verfahren behandelt werden, obgleich in manchen Fällen die Oberflächen nicht diese großen Kontraste zeigen. Z. B. hat eine Aluminium-Sili'cium-Legierung im allgemeinen eine dunklere, marmorierte Nuance, die sehr dekorativ wirkt, als ein Reinaluminium.Aluminum and mummimurn alloys, which i.a. contain silicon, magnesium, Zinc, copper, can be treated by this method, although in some cases the surfaces do not show these great contrasts. For example, has an aluminum-silicon alloy generally a darker, marbled shade that has a very decorative effect than pure aluminum.
Selbstverständlich ist eine Variation in der Konzentration und in der Wahl der Salze weitestgehend möglich und beschränkt sich nicht auf die hier angeführten Beispiele. Man kann also, je nachdem sich die Lösung aus einer der drei Klassen zusammensetzt, den Überzug weitestgehend variieren. Gegenwart von Molybdänverbindungen 'beschleunigt die Reaktion.A variation in the concentration and in the choice of the salts is, of course, as far as possible possible and is not limited to the examples given here. So you can, depending on the solution composed of one of the three classes, vary the coating as much as possible. presence of molybdenum compounds' accelerates the reaction.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87463A US1638273A (en) | 1926-02-10 | 1926-02-10 | Method and composition of matter for surface-treating aluminum |
Publications (1)
Publication Number | Publication Date |
---|---|
DE480720C true DE480720C (en) | 1929-08-08 |
Family
ID=22205335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP54132D Expired DE480720C (en) | 1926-02-10 | 1926-12-02 | Process for providing metal that consists predominantly or entirely of aluminum with an irregularly speckled coating |
Country Status (4)
Country | Link |
---|---|
US (1) | US1638273A (en) |
BE (1) | BE338925A (en) |
DE (1) | DE480720C (en) |
FR (1) | FR626709A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764419C (en) * | 1937-12-06 | 1952-01-31 | Leonhard Perner | Process for producing firmly adhering metal coatings on aluminum and aluminum alloys |
WO1995025830A1 (en) * | 1994-03-24 | 1995-09-28 | Novamax Technologies Holdings Inc. | Alkaline composition for tin immersion coating |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60215772A (en) * | 1984-04-10 | 1985-10-29 | Nippon Parkerizing Co Ltd | Surface treatment of aluminum and its alloy |
JPH0723543B2 (en) * | 1988-08-10 | 1995-03-15 | 日本パーカライジング株式会社 | Surface treatment liquid for zinc-based plating and surface treatment method |
US5176947A (en) * | 1990-12-07 | 1993-01-05 | International Business Machines Corporation | Electroerosion printing plates |
-
0
- BE BE338925D patent/BE338925A/xx unknown
-
1926
- 1926-02-10 US US87463A patent/US1638273A/en not_active Expired - Lifetime
- 1926-12-02 DE DEP54132D patent/DE480720C/en not_active Expired
- 1926-12-24 FR FR626709D patent/FR626709A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764419C (en) * | 1937-12-06 | 1952-01-31 | Leonhard Perner | Process for producing firmly adhering metal coatings on aluminum and aluminum alloys |
WO1995025830A1 (en) * | 1994-03-24 | 1995-09-28 | Novamax Technologies Holdings Inc. | Alkaline composition for tin immersion coating |
US5534048A (en) * | 1994-03-24 | 1996-07-09 | Novamax Technologies, Inc. | Tin coating composition and method |
US5562950A (en) * | 1994-03-24 | 1996-10-08 | Novamax Technologies, Inc. | Tin coating composition and method |
Also Published As
Publication number | Publication date |
---|---|
BE338925A (en) | |
FR626709A (en) | 1927-09-17 |
US1638273A (en) | 1927-08-09 |
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