DE324193C - Process for protecting iron and steel surfaces from being corroded - Google Patents

Process for protecting iron and steel surfaces from being corroded

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Publication number
DE324193C
DE324193C DE1913324193D DE324193DD DE324193C DE 324193 C DE324193 C DE 324193C DE 1913324193 D DE1913324193 D DE 1913324193D DE 324193D D DE324193D D DE 324193DD DE 324193 C DE324193 C DE 324193C
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DE
Germany
Prior art keywords
iron
steel surfaces
corroded
protecting iron
protecting
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
Application number
DE1913324193D
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German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHERARD OSBORN COWPER COLES
Original Assignee
SHERARD OSBORN COWPER COLES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHERARD OSBORN COWPER COLES filed Critical SHERARD OSBORN COWPER COLES
Application granted granted Critical
Publication of DE324193C publication Critical patent/DE324193C/en
Expired legal-status Critical Current

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  • Chemically Coating (AREA)

Description

Verfahren zum Schätzen von Eisen- und Stahlflächen gegen Zerfressen. Die Erfindung. bezieht sich auf ein Verfahren zum Schützen von Eisen- und Stahlflächen gegen Zerfressen...Method of estimating iron and steel surfaces against pitting. The invention. refers to a method of protecting iron and steel surfaces against being eaten away ...

Zu diesem Zwecke werden zuerst die Späne bzw. Schuppen, das Fett und das Oxyd von den zu behandelnden Gegenständen entfernt, und zwar in irgendeiner bekannten Weise. Es kann dies z. B. - durch Ablassen mittels Sand geschehen. Gemäß der Erfindung wird hierauf auf den Gegenständen auf elektrischem Wege ein dicker schützender Niederschlag von reinem Eisen angebracht. Unter »reinem« Eisen ist im vorliegenden Falle ein Eisen @zu verstehen, welches frei von Kohlenstoff und edleren Metallen, aber infolge seiner Herstellung wasserstoffhaltig ist. Das Eisen kann von irgendeinem geeigneten Elektrolyten niedergeschlagen werden, welcher z. B. aus Eisenvitriol oder Ferrochlorid besteht.For this purpose, the chips or flakes, the fat and removes the oxide from the objects to be treated, in any way known way. It can do this e.g. B. - done by draining with sand. According to the invention then becomes a thick one on the objects by electrical means protective deposit of pure iron attached. Under "pure" iron is im In the present case, an iron is to be understood, which is free from carbon and more noble Metals, but contains hydrogen as a result of its manufacture. The iron can be precipitated by any suitable electrolyte, e.g. B. off There is iron vitriol or ferrous chloride.

Nachdem die Gegenstände gewaschen und in einen zweiten Behälter gebracht sind, wird nun nach der Erfindung auf dem reinen Eisenüberzug ein weiterer schützender Niederschlag aus Zink angebracht.After the items are washed and placed in a second container are now, according to the invention, a further protective coating on the pure iron coating Precipitation of zinc attached.

Es wird bemerkt, daß es bereits vorgeschlagen worden ist, einen dünnen .Überzug aus chemisch reinem Eisen als Basis für einen Niederschlag von Metallen, wie Zinn, Nickel und Kupfer, zu verwenden. Bei dieser Verwendung wurde aber ein dünner Überzug aus Eisen aus dem Grund niedergeschlagen, um die Adhäsion des Metalles zu erhöhen, welches auf dein Eisen niedergeschlagen wird. Gemäß der Erfindung wird hingegen auf dem Eisen oder dem Stahl ein verhältnismäßig dicker Überzug aus reinem Eisen niedergeschlagen, welcher zu dem unteren Metall elektropositiv ist und selbst als Schutz gegen das Zerfressen wirkt. Der Betrag des niedergeschlagenen Eisens überschreitet im vorliegenden Falle den Betrag von Zink, welches auf denn Eisen niedergeschlagen wird. Die Niederschläge von Eisen und Zink können hierbei demselben elektrolytischen Bad entnommen «-erden (vgl. Sherard Cowper-C o 1 e s, Elektrolytische Verzinkung, deutsch von A b e l 1905, S. 11).It is noted that it has already been proposed to use a thin coating of chemically pure iron as the base for a deposit of metals such as tin, nickel and copper. In this use, however, a thin coating of iron was deposited for the purpose of increasing the adhesion of the metal which is deposited on the iron. According to the invention, on the other hand, a relatively thick coating of pure iron is deposited on the iron or steel, which is electropositive to the lower metal and itself acts as a protection against erosion. The amount of iron deposited in the present case exceeds the amount of zinc that is deposited on the iron. The precipitates of iron and zinc can be taken from the same electrolytic bath (cf. Sherard Cowper-C o 1 es, Elektrolytische Verzinkung, German from A bel 1905, p. 11).

An der. auf vorstehende Art präparierten Flächen können die Gegenstände eventuell schließlich einem Heiz- oder Brennprozesse unterworfen werden, um eine dichtere Vereinigung der Niederschläge mit der Oberfläche der Gegenstände zu erzielen.At the. The objects eventually be subjected to a heating or firing process in order to achieve a to achieve closer union of the precipitates with the surface of the objects.

Claims (1)

PATRNT-ANSPRUCH. Verfahren zum Schützen von Eisen-und Stahlflächen gegen Zerfressen, dadurch gekennzeichnet, daß zunächst auf der präparierten Fläche ein galvanischer, dicker, schützender Niederschlag von reinem Eisen und alsdann auf diesem schützenden Überzuge ein weiterer Niederschlag angebracht wird, welcher Zink enthält.PATRNT CLAIM. Method for protecting iron and steel surfaces against erosion, characterized in that first on the prepared surface a galvanic, thick, protective deposit of pure iron and then a further deposit is applied to this protective coating, which Contains zinc.
DE1913324193D 1913-01-26 1913-01-26 Process for protecting iron and steel surfaces from being corroded Expired DE324193C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE324193T 1913-01-26

Publications (1)

Publication Number Publication Date
DE324193C true DE324193C (en) 1920-08-19

Family

ID=6178010

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1913324193D Expired DE324193C (en) 1913-01-26 1913-01-26 Process for protecting iron and steel surfaces from being corroded

Country Status (1)

Country Link
DE (1) DE324193C (en)

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