DE508207C - Process for the production of adhesive coatings on aluminum and its alloys - Google Patents
Process for the production of adhesive coatings on aluminum and its alloysInfo
- Publication number
- DE508207C DE508207C DEP57755D DEP0057755D DE508207C DE 508207 C DE508207 C DE 508207C DE P57755 D DEP57755 D DE P57755D DE P0057755 D DEP0057755 D DE P0057755D DE 508207 C DE508207 C DE 508207C
- Authority
- DE
- Germany
- Prior art keywords
- aluminum
- salts
- alloys
- production
- adhesive coatings
- 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
- 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
- C23C22/44—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 containing also fluorides or complex fluorides
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)
- Coloring (AREA)
Description
Verfahren zur Herstellung haftender Überzüge auf Aluminium und dessen Legierungen Zusatz zum Patent 480995 In dem Hauptpatent d.8o 995 ist ein Färbeverfahren für verschiedene Metalle, darunter auch für Aluminium, beschrieben, welches darin besteht, daß Aluminium mit einer Lösung behandelt wird, die Molybdat und gewisse Salze, darunter solche der Fluorwasserstcit- und Kieselfluorwasserstoffsäure, enthält. Das Färbeverfahren verläuft bei Anwendung dieser Salze im allgemeinen mit solcher Schnelligkeit; daß es oft schwer ist, die Behandlung bei Erzielung des gewünschten Farbtcnes rasch genug abzubrechen. Es hat sich nun gezeigt, daß man den Färbevorgang verlangsamen und auf diese Weise den erwähnten Nachteil vermeiden kann, wenn man dem Färbebad Zinksalze zusetzt. Als solche haben sich als vorzüglich geeignet erwiesen z. B. (las Sulfat und das Chlorid; auch mit Zinkfluorid werden gute Resultate erhalten. Durch Zugabe weiterer indifferenter Elektrolvten, z. B. von Ammonsalzen, wie Ammonchlorid, Ammonnitrat, Ammonsulfat, Ammonoxalat u. dgl., läßt sich die Färbegeschwindigkeit andererseits wieder steigern, so daß man es durch Regelung der Art und Menge der verschiedenen Zusätze weitgehend in der Irland hat, mit welcher Geschwindigkeit man den Vorgang ablaufen lassen will. Unter den Molybdaten hat sich im allgemeinen das Amnic,nniolvbdat weniger geeignet erwiesen als andere :1#ll:aliiilolyl)date. Beispiel in eine Lösung, welche 12 g Zinksulfat, 5 g :,: atriummolybdat und 3 g N atriumfluorid auf 11l,,1 Wasser enthält, werden Metallfolien aus Aluminium eingetaucht. Die Temperatur des Bades beträgt 50 bis 70° C. Bei niedriger Temperatur verläuft der Vorgang langsamer.A process for producing adherent coatings on aluminum and its alloys additional patent 480 995 in the main Patent d.8o 995 is a dyeing method for various metals, including aluminum, described which is that aluminum is treated with a solution containing molybdate and contains certain salts, including those of hydrofluoric and hydrofluoric acid. The dyeing process generally proceeds with such rapidity when these salts are used; that it is often difficult to break off the treatment quickly enough when the desired shade is achieved. It has now been shown that the dyeing process can be slowed down and the disadvantage mentioned can be avoided in this way if zinc salts are added to the dyebath. As such, have proven to be extremely suitable, for. B. (Read sulfate and the chloride; good results are also obtained with zinc fluoride. On the other hand, the speed of dyeing can be increased again by adding further inert electrolytes, e.g. ammonium salts, such as ammonium chloride, ammonium nitrate, ammonium sulfate, ammonoxalate and the like so that by regulating the type and quantity of the various additives it is largely up to Ireland to determine the speed at which the process is to be carried out : aliiilolyl) date. For example, metal foils made of aluminum are immersed in a solution which contains 12 g of zinc sulfate, 5 g of atrium molybdate and 3 g of sodium fluoride in 11 liters of water. The temperature of the bath is 50 to 70 ° C. If the temperature is low, the process is slower.
Durch Zusatz von anderen Salzen, wie Nickel, Kupfer, Kobalt- und Mangansalzen, kann der Farbton des Metalles beliebig verändert «-erden. Dieser durchläuft hinterein-. ander die Farben hellblau, dunkelblau, goldgelb, rosa, rot, grün, dunkelrot, braun. In vielen der verwendeten Lösungen kann man bis zu dunkelbraun innerhalb 1 Minute gelangen. Als Anhaltspunkt für die Geschwindigkeit sei beispielsweise erwähnt, daß in diesem Falle die goldgelbe Farbe innerhalb 15 Sekunden erscheint.By adding other salts such as nickel, copper, cobalt and manganese salts, the color of the metal can be changed at will. This runs through one behind the other. other the colors light blue, dark blue, golden yellow, pink, red, green, dark red, brown. Many of the solutions used can turn dark brown within 1 minute reach. As an indication of the speed, it should be mentioned, for example, that in this case the golden yellow color appears within 15 seconds.
Das Verfahren kann hinsichtlich der Arbeitstemperatur sowie Zusammensetzung und Konzentration der verwendeten Lösungen den mannigfachsten Abänderungen unterworfen werden.The process can vary in terms of working temperature as well as composition and concentration of the solutions used are subject to the most varied changes will.
Es ist bereits vorgeschlagen worden, zur Färbung von Aluminium oder Aluminiumlegierungen Lösungen zu verwenden, welche als Hauptbestandteil Ammoniak sowie Silbersalze und :@inmcnsalze, gegebenenfalls neben geringenMcn gen von Salzen anderer Metalle, als welche nur beispielsweise unter anderem auch Zink ün:d -Mälybdän genannt sind, enthalten. Nach dem vorliegenden Verfahren dagegen werden Lösüngen verwendet, deren wesentlicher Bestandteil nicht freies Ammmoniak, sondern ein Molybdat ist, welche ferner kein Silbersalz, sondern Salze der Fluorwasserstoff- und Kieselfluorwasserstoffsäure enthalten, und denen zum Zwecke der Verlangsamung des Färbevorganges zielbewußt Zinksalze zugesetzt worden sind.It has already been suggested for coloring aluminum or Aluminum alloys use solutions, which are ammonia as the main component as well as silver salts and: @inmin salts, possibly in addition to small amounts of salts other metals, than what just for example, among other things Zinc ün: d -Mälybdän are included. According to the present proceedings against it solutions are used whose essential component is not free ammonia, but a molybdate, which is not a silver salt, but salts of the hydrogen fluoride and silicofluoric acid, and those for the purpose of slowing down Zinc salts have been purposefully added during the dyeing process.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP57755D DE508207C (en) | 1928-05-13 | 1928-05-13 | Process for the production of adhesive coatings on aluminum and its alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP57755D DE508207C (en) | 1928-05-13 | 1928-05-13 | Process for the production of adhesive coatings on aluminum and its alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
DE508207C true DE508207C (en) | 1930-09-25 |
Family
ID=7388803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP57755D Expired DE508207C (en) | 1928-05-13 | 1928-05-13 | Process for the production of adhesive coatings on aluminum and its alloys |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE508207C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7763121B2 (en) | 2006-04-28 | 2010-07-27 | Tokai Rubber Industries, Ltd. | Rubber part having an aluminum-based metal component and method of producing the same |
-
1928
- 1928-05-13 DE DEP57755D patent/DE508207C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7763121B2 (en) | 2006-04-28 | 2010-07-27 | Tokai Rubber Industries, Ltd. | Rubber part having an aluminum-based metal component and method of producing the same |
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