DE669251C - Process for the production of shiny zinc coatings - Google Patents
Process for the production of shiny zinc coatingsInfo
- Publication number
- DE669251C DE669251C DEA82085D DEA0082085D DE669251C DE 669251 C DE669251 C DE 669251C DE A82085 D DEA82085 D DE A82085D DE A0082085 D DEA0082085 D DE A0082085D DE 669251 C DE669251 C DE 669251C
- Authority
- DE
- Germany
- Prior art keywords
- production
- zinc coatings
- zinc
- shiny
- shiny zinc
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
- C25D3/24—Electroplating: Baths therefor from solutions of zinc from cyanide baths
Description
Verfahren zur Herstellung glänzender Zinküberzüge Die Erfindung betrifft ein Verfahren zur Herstellung dünner glänzender Zinkniederschläge im galvanischen Bad unter Zusatz eines Amines und ist durch die Verwendung von Phenylendiamin, gegebenenfalls in Verbindung mit anderen wasserlöslichen Aminen, gekennzeichnet.Process for Making Bright Zinc Coatings The invention relates to a process for the production of thin, shiny zinc deposits by electroplating Bath with the addition of an amine and is through the use of phenylenediamine, if necessary in conjunction with other water-soluble amines.
Es ist bereits vorgeschlagen worden, feinkörnige Zinkniederschläge durch Zusatz organischer Verbindungen, z. B. von Pyridin, Aminen, zum Zinkbade herzustellen. Zu erwähnen ist, daß das Pyridin mit einem sehr störenden Geruch behaftet und außerdem nicht immer leicht zu beschaffen ist. Auch steht fest, daß manche Amine zur Lösung der Aufgabe der Erfindung durchaus ungeeignet sind.It has already been proposed to deposit fine-grained zinc by adding organic compounds, e.g. B. of pyridine, amines, to prepare zinc baths. It should be mentioned that the pyridine has a very unpleasant odor and also is not always easy to obtain. It is also clear that some amines lead to a solution the object of the invention are entirely unsuitable.
Nach der Erfindung wird ein alkalisches Zinkbad mit passenden Mengen Phenylendiamin para, meta, ortho oder in Verbindung mit anderen wasserlöslichen Aminen versetzt. So scheiden sich nach .einigen Tagen, nachdem das Bad bei geringen Stromstärken durchgearbeitet wurde, dichte, glänzende Zinkniederschläge auf den zu galvanisierenden Metallteilen ab. Beispiel 3,5kgNaCN, 5,5 kg Zn CN, 7,6 kg Na (O H) und etwa o, z kg Phenylendiamin.According to the invention, an alkaline zinc bath in appropriate quantities Phenylenediamine para, meta, ortho or in conjunction with other water-soluble Amines added. So divorce after a few days after taking the bath at low levels Amperes were worked through, thick, shiny zinc deposits on the metal parts to be electroplated. Example 3.5 kg NaCN, 5.5 kg Zn CN, 7.6 kg Na (O H) and about 0.2 kg of phenylenediamine.
In diesem Bad wird die Verzinkung in üblicher Weise durchgeführt; man arbeitet mit niedriger Volt- und mit höherer Amperezahl. Auch bei Temperaturen bis 5o° C zeichnen sich die Zinküberzüge durch große Dichte und glänzende Beschaffenheit aus.In this bath, the galvanizing is carried out in the usual way; one works with lower voltages and with higher amperages. Even at temperatures Up to 50 ° C, the zinc coatings are characterized by their high density and glossy texture the end.
Nach dem Verfahren behandelte Werkstücke sind gegen Veränderung durch atmosphärische Einflüsse oder die Berührung mit Flüssigkeiten sehr gut geschützt und haben zudem ein sehr gutes Aussehen.Workpieces treated according to the procedure cannot be changed atmospheric influences or contact with liquids very well protected and also have a very good appearance.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA82085D DE669251C (en) | 1937-02-25 | 1937-02-25 | Process for the production of shiny zinc coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA82085D DE669251C (en) | 1937-02-25 | 1937-02-25 | Process for the production of shiny zinc coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE669251C true DE669251C (en) | 1938-12-20 |
Family
ID=6948504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA82085D Expired DE669251C (en) | 1937-02-25 | 1937-02-25 | Process for the production of shiny zinc coatings |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE669251C (en) |
-
1937
- 1937-02-25 DE DEA82085D patent/DE669251C/en not_active Expired
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