DE448009C - Process for producing a rust-proof layer on iron and steel - Google Patents
Process for producing a rust-proof layer on iron and steelInfo
- Publication number
- DE448009C DE448009C DESCH79024D DESC079024D DE448009C DE 448009 C DE448009 C DE 448009C DE SCH79024 D DESCH79024 D DE SCH79024D DE SC079024 D DESC079024 D DE SC079024D DE 448009 C DE448009 C DE 448009C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- rust
- steel
- proof layer
- producing
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
- C23C22/10—Orthophosphates containing oxidants
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
Verfahren zur Erzeugung einer rostsicheren Schicht auf Eisen und Stahl. Die Phosphorsäure hat sowohl allein als auch in Verbindung mit Metallen und Metalloxyden bereits vielfach Verwendung gefunden zur Erzeugung einer rostsicheren Schicht auf Eisen und Stahl. Eine weitere Ausgestaltung des Verfahrens erfolgte durch Zusatz von Wasserstoffsuperoxyd bzw. von solchen Verbindungen, welche in wässeriger Lösung mit oder ohne Zusatz von Säure Sauerstoff im Status nascendi abspalten, um in der Rostschutzflüssigkeit Sauerstoff zur Entstehung zu bringen und dadurch die rostsichere Schicht zu verbessern.Process for producing a rust-proof layer on iron and steel. The phosphoric acid has both alone and in conjunction with metals and metal oxides has already been widely used to produce a rust-proof layer Iron and Steel. A further refinement of the procedure took place through an addition of hydrogen peroxide or of those compounds which are in aqueous solution with or without the addition of acid, split off oxygen in the status nascendi in order to be in the To bring about the emergence of anti-rust liquid oxygen and thereby the rust-proof Layer to improve.
Vorliegende Erfindung betrifft eine weitere Verbesserung der Schutzschicht sowohl in ihrer inneren Zusammensetzung als auch in ihrer Verbindung mit dem Eisen oder Stahl. Gemäß der Erfindung wird nämlich kein Metall oder Metalloxyd, sondern ein Metallchlorat, insbesondere Kaliumchlorat, in Verbindung mit Wassersto Superoxyd und Phosphorsäure zur Bildung der Schutzschicht benutzt.The present invention relates to a further improvement in the protective layer both in their internal composition and in their connection with iron or steel. According to the invention, namely, no metal or metal oxide, but a metal chlorate, especially potassium chlorate, in connection with hydrogen superoxide and phosphoric acid is used to form the protective layer.
Ein Ausführungsbeispiel zur Durchführung des Verfahrens ist folgendes: Zunächst wird das Kaliumchlorat in Wasserstoffsuperoxyd gelöst und diese Lösung dann der Phosphorsäure zugesetzt, zweckmäßigerweise in dem Verhältnis, daß auf 1l Phosphorsäure 20 g 3oprozentiges Wasserstoffsuperoxyd kommt, das ro g Kaliumchlorat enthält. In das derart hergestellte und auf Kochtemperatur gebrachte Bad werden die metallisch reinen Eisen- oder Stahlgegenstände eingebracht, welche nach etwa anderthalb bis zwei Stunden mit einer rostsicheren Schutzschicht überzogen sind.An exemplary embodiment for carrying out the method is as follows: First the potassium chlorate is dissolved in hydrogen peroxide and this solution then added to the phosphoric acid, expediently in the ratio that to 1l Phosphoric acid 20 g 3% hydrogen peroxide comes in, the ro g potassium chlorate contains. In the bath produced in this way and brought to boiling temperature the metallically pure iron or steel objects introduced, which after about are covered with a rustproof protective layer for one and a half to two hours.
Wie Versuche ergeben haben, ist die mit dem Verfahren gemäß der Erfindung erzeugte Schutzschicht wesentlich besser und widerstandsfähiger sowie ihre Verbindung mit dem Eisen eine wesentlich innigere als bei den bisher bekannten Verfahren. Dieses ist in erster Linie darauf zurückzuführen, daß eine äußerst energische Oxydationswirkung entsteht, weil zunächst Chlordioxyd frei wird, welche die Wirkung des Wasserstoffsuperoxyds unterstützt.As tests have shown, that with the method according to the invention created protective layer much better and more resistant as well as their connection with iron, it is much more intimate than with the previously known processes. This is primarily due to the fact that it has an extremely energetic oxidizing effect arises because chlorine dioxide is initially released, which has the effect of hydrogen peroxide supports.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH79024D DE448009C (en) | 1926-06-01 | 1926-06-01 | Process for producing a rust-proof layer on iron and steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH79024D DE448009C (en) | 1926-06-01 | 1926-06-01 | Process for producing a rust-proof layer on iron and steel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE448009C true DE448009C (en) | 1927-08-05 |
Family
ID=7441758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DESCH79024D Expired DE448009C (en) | 1926-06-01 | 1926-06-01 | Process for producing a rust-proof layer on iron and steel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE448009C (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748210C (en) * | 1939-04-23 | 1944-10-28 | Process for the production of phosphate coatings on iron and steel | |
DE969976C (en) * | 1947-11-22 | 1958-08-07 | Metallgesellschaft Ag | Process for the production of a phosphate coating on ferrous materials |
DE974004C (en) * | 1937-06-02 | 1960-08-18 | Metallgesellschaft Ag | Process to improve the non-cutting deformation of workpieces made of iron and zinc |
DE974713C (en) * | 1941-04-25 | 1961-04-06 | Metallgesellschaft Ag | Process for the production of coatings on metals |
DE1169251B (en) * | 1956-04-13 | 1964-04-30 | Fmc Corp | Process for pickling mild steel |
-
1926
- 1926-06-01 DE DESCH79024D patent/DE448009C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974004C (en) * | 1937-06-02 | 1960-08-18 | Metallgesellschaft Ag | Process to improve the non-cutting deformation of workpieces made of iron and zinc |
DE748210C (en) * | 1939-04-23 | 1944-10-28 | Process for the production of phosphate coatings on iron and steel | |
DE974713C (en) * | 1941-04-25 | 1961-04-06 | Metallgesellschaft Ag | Process for the production of coatings on metals |
DE969976C (en) * | 1947-11-22 | 1958-08-07 | Metallgesellschaft Ag | Process for the production of a phosphate coating on ferrous materials |
DE1169251B (en) * | 1956-04-13 | 1964-04-30 | Fmc Corp | Process for pickling mild steel |
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