DE922980C - Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys - Google Patents

Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys

Info

Publication number
DE922980C
DE922980C DER8697A DER0008697A DE922980C DE 922980 C DE922980 C DE 922980C DE R8697 A DER8697 A DE R8697A DE R0008697 A DER0008697 A DE R0008697A DE 922980 C DE922980 C DE 922980C
Authority
DE
Germany
Prior art keywords
corrosion
resistant surface
heat treatment
metal alloys
continuous heat
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
DER8697A
Other languages
German (de)
Inventor
Walter Dr-Ing Reinecken
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DER8697A priority Critical patent/DE922980C/en
Application granted granted Critical
Publication of DE922980C publication Critical patent/DE922980C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/40—Direct resistance heating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur kontinuierlichen Wärmebehandlung von vergütbaren Metall-Legierungen, insbesondere zum Vergüten von Drähten, Bändern, Rohren u. dggl. aus Stählen, unter Anwendung der elektrischen Widerstandserwärmung durch Stromdurchgang, wobei die Erwärmung zum Härten sowie zum Anlassen in einem einzigen Stromdurchgang hintereinander vorgenommen und durch entsprechende Verschiebung einer Abschreck düse insbesondere die Anlaßtemperatur geregelt wird, nach Patent 8866o5.The invention relates to a method for continuous Heat treatment of temperable metal alloys, in particular for tempering Wires, tapes, pipes and the like. made of steels, using the electrical Resistance heating by passage of current, the heating being used for hardening as well for starting in a single current run carried out one after the other and through corresponding displacement of a quenching nozzle, in particular the tempering temperature is regulated, according to patent 8866o5.

Die Erfindung bezweckt eine Verbesserung des behandelten Gutes; insbesondere bei hochvergüteten Materialien, hinsichtlich seiner Oberflächenkorrosionswiderstandsfähigkeit, wodurch die Sprödbruchsicherheit wesentlich erhöht wird.The invention aims to improve the treated material; in particular in the case of highly tempered materials, with regard to its surface corrosion resistance, whereby the brittle fracture security is significantly increased.

Das Ziel wird in einfacher Weise dadurch erreicht, daß man entweder als Strom leitende Flüssigkeiten bei den Stromzuführungsrollen solche Stoffe verwendet, die eine Phosphid- oder Brünierschicht erzeugen, wie Ca3 P 04 oder Brüniersalze, oder aber solche Gase oder Dämpfe vorwiegend im Bereich der Anlaßstrecke auf das Gut einwirken läßt, die eine korrosionsfestere Oberflächenschicht entstehen lassen, wie außer vorgenannten Schichten auch solche aus Cr; Ni, Zn oder ähnliche.The goal is achieved in a simple manner by either such substances are used as electrically conductive liquids in the power supply rollers, that create a phosphide or burnishing layer, such as Ca3 P 04 or burnishing salts, or such gases or vapors mainly in the area of the starting section on the Can act well, which create a more corrosion-resistant surface layer, as well as those made of Cr in addition to the aforementioned layers; Ni, Zn or the like.

In der Zeichnung sind zwei Ausführungsbeispiele schematisch dargestellt, und zwar in Abb. r die Herstellung des Oberflächenschutzes durch Flüssigkeit und in Abb. 2 die Herstellung des Oberflächenschutzes durch Gase oder Dämpfe.In the drawing, two exemplary embodiments are shown schematically, namely in Fig. r the production of the surface protection by liquid and in Fig. 2, the creation of surface protection using gases or vapors.

In beiden Abbildungen bedeutet r die Ablaufhaspel, 2 die Richtwalzen, 3 die Stromzuführungsrollen, ¢ die verstellbare Abschreckdüse, 5 die weiteren Stromzuführungsrollen, 6 weitere Richtwalzen, 7 eine weitere Kühlvorrichtung, 8 die Aufrollhaspel; in Abb. z bedeuten 9 und ro die Behälter für die Flüssigkeit rr und r2, und in Abb. 2 bedeutet 13 den Behälter für Gase oder Dämpfe gemäß der Erfindung.In both figures, r denotes the pay-off reel, 2 the straightening rollers, 3 the power supply rollers, ¢ the adjustable quenching nozzle, 5 the further power supply rollers, 6 further straightening rollers, 7 a further cooling device, 8 the winding reel; in fig. z, 9 and ro denote the containers for the liquid rr and r2, and in fig. 2 13 denotes the container for gases or vapors according to the invention.

Claims (2)

PATENTANSPRÜCHE: r. Verfahren, zur Herstellung einer korrosionsfesten Oberfläche beim kontinuierlichen Wärmebehandeln von vergütbaren Metall-Legierungen, insbesondere von Drähten, Bändern, Rohren u. dgl. aus Stählen, unter Anwendung einer elektrischen Widerstandserwärmung durch Stromdurchgang, wobei die Stromzuführung durch gleichzeitige Verwendung von Stromzuführungsrollen und stromleitenden Flüssigkeiten vorgenommen wird, nach Patent 886605, dadurch gekennzeichnet, daß als stromleitende Flüssigkeit solche Stoffe verwendet werden, die eine Phosphid- oder Brünierschicht erzeugen. PATENT CLAIMS: r. Process for the production of a corrosion-resistant surface during the continuous heat treatment of heat treatable metal alloys, in particular of wires, strips, tubes and the like made of steels, using electrical resistance heating through the passage of current, the power supply being carried out by the simultaneous use of power supply rollers and electrically conductive liquids is, according to patent 886605, characterized in that such substances are used as the conductive liquid, which produce a phosphide or burnishing layer. 2. Verfahren zur Herstellung einer korrosionsfesten Oberfläche beim kontinuierlichen Wärmebehandeln von Metall-Legierungen unter Anwendung einer elektrischen Widerstandserwärmung durch Stromdurchgang, unter Verwendung von Stromzuführungsrollen, wobei die Erwärmung zum Härten und Anlassen in einem einzigen Stromdurchgang hintereinander vorgenommen wird, nach Patent 886 6o5, dadurch gekennzeichnet, daß die korrosionsfeste Oberflächenschicht durch Einwirkung von Gasen oder Dämpfen, vorwiegend in dem Bereich der Anlaßstrecke, erzeugt wird.2. Method of producing a corrosion-resistant surface during continuous Heat treatment of metal alloys using electrical resistance heating by current passage, using power supply rollers, with heating for hardening and tempering carried out in a single current pass one after the other is, according to patent 886 6o5, characterized in that the corrosion-resistant surface layer due to the effect of gases or vapors, mainly in the area of the starting section, is produced.
DER8697A 1952-03-30 1952-03-30 Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys Expired DE922980C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER8697A DE922980C (en) 1952-03-30 1952-03-30 Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER8697A DE922980C (en) 1952-03-30 1952-03-30 Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys

Publications (1)

Publication Number Publication Date
DE922980C true DE922980C (en) 1956-08-30

Family

ID=7397966

Family Applications (1)

Application Number Title Priority Date Filing Date
DER8697A Expired DE922980C (en) 1952-03-30 1952-03-30 Process for the production of a corrosion-resistant surface in the continuous heat treatment of metal alloys

Country Status (1)

Country Link
DE (1) DE922980C (en)

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