DE612728C - Luestersud - Google Patents
LuestersudInfo
- Publication number
- DE612728C DE612728C DEG83003D DEG0083003D DE612728C DE 612728 C DE612728 C DE 612728C DE G83003 D DEG83003 D DE G83003D DE G0083003 D DEG0083003 D DE G0083003D DE 612728 C DE612728 C DE 612728C
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- luster
- brew
- brass
- copper
- 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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
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)
- Cosmetics (AREA)
Description
Lüstersud Bekannt ist das Färben von Messing, Kupfer, Zink und Eisen mittels Lüster- oder Blausud folgender Zusammensetzung: 124 g Natriumthiosulfat - 1/.., Mol und 38g Bleizucker = 1/10 Mol, gelöst in i 1 Wasser.Luster brews The coloring of brass, copper, zinc and iron is known using luster or blue brew of the following composition: 124 g sodium thiosulphate - 1 / .., mole and 38g lead sugar = 1/10 mole, dissolved in 1 liter of water.
Dies Verfahren gestattet, Messing in verschiedenen Farbtönen, Kupfer dunkelblau, Zink bronzeartig und Eisen stahlblau zu färben. Die allgemein übliche Badtemperatur liegt zwischen 8o und g5° C. Es ist auch möglich, mit der Temperatur bis zu einer Grenze von etwa 6o° C herabzugehen. Dabei verlängert sich aber die Zeitdauer des Färbens.This method allows brass in different shades, copper to color dark blue, zinc bronze-like and iron steel blue. The common one Bath temperature is between 8o and g5 ° C. It is also possible with the temperature to go down to a limit of about 60 ° C. But this is longer Duration of staining.
Das bisherige Verfahren hat den großen Nachteil, daß Bäder von verhältnismäßig höher Temperatur notwendig sind, um, die Lüsterfarben überhaupt zu erzeugen. Bei dieser hohen Sudtemperatur ist es außerdem schwer, einen gewünschten Farbton zu erreichen und zu beherrschen. Daher lassen die einzelnen Farbtöne an Reinheit sehr zu wünschen übrig. Wirklich befriedigend können beispielsweise bei Messing nur gelbe und blaue Farbtöne festgehalten werden. Aus diesem Grunde wird das Verfahren bisher praktisch wenig angewendet.The previous method has the major disadvantage that baths of relatively higher temperature are necessary to produce the luster colors at all. at this high brewing temperature also makes it difficult to achieve a desired color shade reach and master. Therefore, the individual colors leave a lot of purity to be desired. With brass, for example, only yellow ones can be really satisfactory and blue hues are captured. For this reason, the procedure is so far practically little applied.
Durch langwierige und umfangreiche Versuche gelang es, diese Mißstände zu beseitigen. Zunächst wurde das Mengenverhältnis der Bestandteile Natriumthiosulfat und Bleiacetat geändert, ,und es zeigte sich, daß die Arbeitstemperatur hierdurch wesentlich, und zwar unter 5o° gesenkt werden konnte. Als weiterer Vorteil stellte sich dabei heraus, daß die einzelnen Farbtöne in schöner Abstufung und sehr rein hervortraten. Die Senkung der Arbeitstemperatur auf weniger als 5o° bringt auch im praktischen Betriebe erhebliche Vorteile mit sich. Das Bad zersetzt sich nicht so schnell und gestattet eine wesentlich größere Ausbeute, so daß größere Oberflächenmengen damit gefärbt werden können; die Belästigung der färbenden Arbeiter durch ausgestoßene Dämpfe u. dgl. ist erheblich geringer. Schließlich lassen sich tiefere Temperaturen auch erheblich besser beherrschen als Temperaturen in der Nähe des Siedepunktes.Through lengthy and extensive experiments it was possible to remedy these abuses to eliminate. First, the proportion of the ingredients was sodium thiosulfate and lead acetate changed, and it was found that the working temperature thereby could be reduced significantly, namely below 5o °. Asked as an additional benefit It turns out that the individual color tones are beautifully graded and very pure emerged. The lowering of the working temperature to less than 50 ° also brings in practical operation with considerable advantages. The bath does not decompose so quickly and allows a much greater yield, so that larger surface areas can be colored with it; the harassment of the dyeing workers by outcasts Vapors and the like is considerably less. Finally, lower temperatures can be used also control them considerably better than temperatures close to the boiling point.
Alle diese Vorteile lassen sich erreichen, wenn man das bisher bekannte Konzentrationsverhältnis ändert in 15 bis 25 g Natriumthiosulfat und 1,5 bis 7,6g Bleiacetat auf ioo ccm Wasser.All these advantages can be achieved if you change the previously known concentration ratio in 1 5 to 25 g of sodium thiosulfate and 1.5 to 7.6 g of lead acetate on ioo cc of water.
Eine besonders geeignete Mischung ist folgende: 25 g Natriumthiosulfat und 3,5 g Bleiacetat auf ioo ccm Wasser.A particularly suitable mixture is the following: 25 g of sodium thiosulphate and 3.5 g of lead acetate in 100 cc of water.
Das Verfahren läßt sich noch weiter vervollkommnen und den Anforderungen der Praxis weitestgehend anpassen, wenn man die Beizgeschwindigkeit, die mit sinkender Temperatur natürlich kleiner wird, 'durch fremde Zusätze erhöht. . Es zeigte sich dabei, daß durch schwach dissoziierte, insbesondere organische Säuren oder Salze die Beizgeschwindigkeit, die beim Sud alter Zusammensetzung bei 8o° C 5o Sekunden betrug, auf 5 Sekunden verbessert werden konnte. Die Veränderung der Konzentration in Verbindung mit solchen Säuren oder Salzen läßt eine weitere Verminderung der Sudtemperatur =. Es gelingt dadurch selbst bei. Zimmertemperatur, zu färben, und schon von 3o° C ab werden schöne reine Töne in goldgelb, kupferrot, violett, dunkelblau, hellblau, Chromfarben, nickelfarben und rotgrau in guter Haltbarkeit erreicht. Die obenerwähnten Vorteile der Temperatursenkung kommen dann in noch höherem Grade zur Geltung.The process can still be perfected and the requirements adapt to practice as far as possible if you consider the pickling speed, which decreases with Temperature naturally becomes smaller, 'increased by foreign additives. . It was found while that by weakly dissociated, especially organic acids or salts the pickling speed, which was 50 seconds when brewing the old composition at 80 ° C could be improved to 5 seconds. The change in concentration in connection with such acids or salts allows a further reduction of the Brew temperature =. It even succeeds in doing so. Room temperature, to be colored, and already from 30 ° C onwards beautiful pure tones in golden yellow, copper red, violet, dark blue, light blue, chrome, nickel and red-gray with good durability achieved. The above-mentioned advantages of lowering the temperature then come even greater Grade to advantage.
Günstige Wirkungen erreicht man z. B., wenn man einer Lösung obiger Zusammensetzung o,6 bis 5 g Essigsäure, Weinstein o. dgl. pro Liter zusetzt.Favorable effects can be achieved z. B. If you have a solution above Composition 0.6 to 5 g of acetic acid, tartar or the like added per liter.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG83003D DE612728C (en) | 1932-06-26 | 1932-06-26 | Luestersud |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG83003D DE612728C (en) | 1932-06-26 | 1932-06-26 | Luestersud |
Publications (1)
Publication Number | Publication Date |
---|---|
DE612728C true DE612728C (en) | 1935-05-03 |
Family
ID=7137685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG83003D Expired DE612728C (en) | 1932-06-26 | 1932-06-26 | Luestersud |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE612728C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082129A (en) * | 1956-12-07 | 1963-03-19 | Devex Corp | Method of coating wires for drawing |
-
1932
- 1932-06-26 DE DEG83003D patent/DE612728C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3082129A (en) * | 1956-12-07 | 1963-03-19 | Devex Corp | Method of coating wires for drawing |
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