DE1017876B - Process for improving the adhesive strength of enamel coatings on iron or steel - Google Patents

Process for improving the adhesive strength of enamel coatings on iron or steel

Info

Publication number
DE1017876B
DE1017876B DEA25295A DEA0025295A DE1017876B DE 1017876 B DE1017876 B DE 1017876B DE A25295 A DEA25295 A DE A25295A DE A0025295 A DEA0025295 A DE A0025295A DE 1017876 B DE1017876 B DE 1017876B
Authority
DE
Germany
Prior art keywords
nickel
cobalt
iron
adhesive strength
improving
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.)
Pending
Application number
DEA25295A
Other languages
German (de)
Inventor
Fred G Stuphen
Jesse J Canfield
Robert L Myers
Joseph E Sams
Robert S Burns
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.)
Armco International Corp
Original Assignee
Armco International Corp
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 Armco International Corp filed Critical Armco International Corp
Publication of DE1017876B publication Critical patent/DE1017876B/en
Pending legal-status Critical Current

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
    • C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
    • C23D3/00—Chemical treatment of the metal surfaces prior to coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/901—Surface depleted in an alloy component, e.g. decarburized
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12472—Microscopic interfacial wave or roughness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12937—Co- or Ni-base component next to Fe-base component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12958—Next to Fe-base component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemically Coating (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Magnetic Ceramics (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Description

DEUTSCHESGERMAN

Die Erfindung betrifft eine Ausgestaltung des Verfahrens nach dem Hauptpatent. Gemäß dem Hauptpatent wird die Haftfestigkeit von Emailüberzügen auf Eisen oder Stahl dadurch verbessert, daß man die zu emaillierenden Gegenstände zunächst vernickelt, S dann oxydierend glüht und schließlich zur Entfernung der beim Glühen gebildeten Oxydschicht beizt, wobei die Glühung so geleitet wird, daß ein Oxyd entsteht, das mindestens etwa so beschaffen ist wie ein beim Erhitzen der Gegenstände in einer Atmosphäre von verbranntem Erdgas mit 11 % brennbaren Gasen, bezogen auf das trockene Gas, und mit einem Taupunkt von 66° C während 2 Minuten in einem Ofen von 845° C gebildetes Oxyd.The invention relates to an embodiment of the method according to the main patent. According to the main patent the adhesive strength of enamel coatings on iron or steel is improved by the Objects to be enamelled are initially nickel-plated, S then glows in an oxidizing manner and finally for removal the oxide layer formed during annealing is pickling, the annealing being conducted in such a way that an oxide is formed, that is at least about the same as when the objects are heated in an atmosphere of burned natural gas with 11% combustible gases, based on the dry gas, and with a dew point Oxide formed at 66 ° C for 2 minutes in an 845 ° C oven.

Es wurde nun gefunden, daß unter im wesentlichen denselben Bedingungen wie in dem Hauptpatent das Nickel durch Kobalt, eine Mischung von Kobalt und Nickel, kobaltreiche Legierungen, nickelreiche Legierungen oder kobalt- und nickelreiche Legierungen ersetzt werden kann. Die Glühung erfolgt dabei ebenfalls in einer Atmosphäre, deren oxydierende Wirkung derjenigen einer Atmosphäre von verbranntem Erdgas mit 11% brennbaren Stoffen, bezogen auf das trockene Gas, mit einem Taupunkt von etwa 54 bis 82° C während etwa 2 bis 5 Minuten in einem Ofen mit einer Temperatur von etwa 760 bis 1100° C entspricht. It has now been found that under essentially the same conditions as in the main patent Nickel by cobalt, a mixture of cobalt and nickel, cobalt-rich alloys, nickel-rich alloys or alloys rich in cobalt and nickel can be replaced. The annealing also takes place in an atmosphere whose oxidizing effect is that of an atmosphere of burnt natural gas with 11% combustible substances, based on the dry gas, with a dew point of about 54 to 82 ° C for about 2 to 5 minutes in an oven with a temperature of about 760 to 1100 ° C.

Dem Fachmann steht somit nunmehr eine ganze Auswahl verschiedener Metalle bzw. Legierungen zur Verfügung, um die Haftfestigkeit von Emailüberzügen auf Eisen oder Stahl zu verbessern.The person skilled in the art thus now has a whole selection of different metals or alloys at his disposal Available to improve the adhesive strength of enamel coatings on iron or steel.

Zweckmäßig erfolgt die Aufbringung des metallischen Überzuges wie in dem Hauptpatent durch Elektroplattierung, und zwar in einer Menge zwischen etwa 0,002 und 0,02 und vorzugsweise zwischen etwa 0,005 und 0,01 g/dm2 auf die Oberfläche des damit zu überziehenden Gutes.The metallic coating is expediently applied by electroplating, as in the main patent, in an amount between about 0.002 and 0.02 and preferably between about 0.005 and 0.01 g / dm 2 on the surface of the material to be coated with it.

Das Beizen erfolgt ebenfalls mit einer etwa 6- bis 25°/oigen Schwefelsäure bei Raumtemperatur zwischen etwa 71 und 88° C.Pickling is also carried out with about 6 to 25% sulfuric acid at room temperature around 71 and 88 ° C.

Wie in dem Hauptpatent kann auch hier auf das behandelte Gut vor der Emaillierung noch einmal ein Nickelüberzug aufgebracht werden.As in the main patent, the treated item can be checked again before enamelling Nickel plating can be applied.

Auch alle übrigen Bedingungen sind bei der praktischen Durchführung des Verfahrens dieselben, wie sie im Hauptpatent beschrieben sind, d.h., es können z. B. beliebige andere Verfahrensgänge eingeschaltet werden, wenn nur die Verfahrensabschnitte der Aufbringung des metallischen Überzuges, des oxydierenden Glühens und des Beizens ihre Reihenfolge beibehalten. All other conditions are also the same in the practical implementation of the procedure, as they are described in the main patent, i.e. it can e.g. B. any other process steps switched on if only the process stages of the application of the metallic coating, the oxidizing Maintain their order of annealing and pickling.

Ein beispielsweiser Verfahrensgang gemäß der Erfindung für die Herstellung von mit einem einzigen weißen Emailüberzug zu versehenden Gut kann aus Verfahren zur VerbesserungAn exemplary process according to the invention for the production of with a single white enamel coating too good can be made from method of improvement

der Haftfestigkeit von Emailüberzügenthe adhesive strength of enamel coatings

auf Eisen oder Stahlon iron or steel

Zusatz zum Patent 828 626Addendum to patent 828,626

Anmelder:Applicant:

The Armco International Corporation,
Middletown, Ohio (V. St. A.)The Armco International Corporation,
Middletown, Ohio (V. St. A.)

Vertreter: Dipl.-Ing. E. Prinz, Patentanwalt,
Gräfeln'ng bei München, Aribostr. 14Representative: Dipl.-Ing. E. Prinz, patent attorney,
Graefeln'ng near Munich, Aribostr. 14th

Fred G. Stuphen, Jesse J. Canfield,
Robert L. Myers, Joseph E. Sams und Robert S. Bums,Fred G. Stuphen, Jesse J. Canfield,
Robert L. Myers, Joseph E. Sams and Robert S. Bums,

Middletown, Ohio (V. St. A.),
sind als Erfinder genannt wordenMiddletown, Ohio (V. St. A.),
have been named as inventors

den folgenden Verfahrensabschnitten bestehen, die dem Kaltwalzen des Metalles auf Kaliber folgen: Normalisieren, Beizen, Aufbringen des metallischen Überzuges, oxydierendes Glühen, Beizen, Entkohlen.consist of the following process steps that follow the cold rolling of the metal to caliber: Normalizing, pickling, applying the metallic coating, oxidizing annealing, pickling, decarburizing.

Wenn ein Glühen im Muffelofen erfolgen soll, kann das dem Verfahrensgang als Endbehandlung angefügt werden. Dieser Verfahrensgang kann beliebig variiert werden, sofern nur, wie vorstehend gesagt, die Reihenfolge der drei wesentlichen Verfahrensabschnitte eingehalten wird.If annealing is to take place in the muffle furnace, this can be added to the process as a final treatment will. This process sequence can be varied as desired, provided that only the sequence, as stated above of the three essential procedural steps is complied with.

Es war keinesfalls zu erwarten, daß das Nickel unter Beibehaltung sämtlicher Bedingungen und Verfahrensmaßnahmen, wie sie im Hauptpatent beschrieben sind, ohne weiteres durch Kobalt, eine Mischung von Kobalt und Nickel, kobaltreiche Legierungen, nickelreiche Legierungen oder kobalt- und nickelreiche Legierungen ersetzt werden könnte. Die Erfindung bildet somit eine echte Bereicherung der Technik.It was by no means to be expected that the nickel, if all conditions and Process measures, as they are described in the main patent, easily by cobalt, one Mixture of cobalt and nickel, cobalt-rich alloys, nickel-rich alloys or cobalt and nickel-rich alloys could be replaced. The invention is thus a real asset to the Technology.

Claims (3)

Patentansprüche:Patent claims: 1. Verfahren zur Verbesserung der Haftfestigkeit von Emailüberzügen auf Eisen oder Stahl nach Patent 828 626, dadurch gekennzeichnet, daß vor dem oxydierenden Glühen und anschließenden Beizen des Gutes auf die Oberfläche des zu email-1. Process for improving the adhesive strength of enamel coatings on iron or steel according to patent 828 626, characterized in that before the oxidizing annealing and subsequent Pickling of the goods on the surface of the 709 756/256709 756/256 lierenden Gutes ein Überzug aus Kobalt, einer Mischung von Kobalt und Nickel, kobaltreichen Legierungen, nickelreichen Legierungen oder kobalt- und nickelreichen Legierungen aufgebracht und das Glühen in einer Atmosphäre vorgenommen wird, welche nicht weniger oxydierend ist als eine Atmosphäre von verbranntem Erdgas mit ll°/o brennbaren Stoffen, bezogen auf eine Analyse des trockenen Gases, und mit einem Taupunkt von etwa 54 bis etwa 82° C in einem Ofen mit einer Temperatur von etwa 760 bis etwa 1100° C während etwa 2 bis 5 Minuten.a coating of cobalt, a mixture of cobalt and nickel, rich in cobalt Alloys, nickel-rich alloys or cobalt and nickel-rich alloys applied and the annealing is done in an atmosphere no less oxidizing than an atmosphere of burned natural gas with 11% combustibles based on an analysis of the dry gas, and with a dew point of about 54 to about 82 ° C in an oven a temperature of about 760 to about 1100 ° C for about 2 to 5 minutes. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Metallüberzug auf dem zu emaillierenden Gut auf elektrischem Wege niedergeschlagen wird.2. The method according to claim 1, characterized in that the metal coating on the to be enamelled Is well knocked down electrically. 3. Verfahren nach Anspruch 1 und 2, gekennzeichnet durch ein anschließendes Aufbringen von Nickel auf die Oberfläche des behandelten Gutes vor der Emaillierung.3. The method according to claim 1 and 2, characterized by a subsequent application of Nickel on the surface of the treated item before enamelling. © 7» 756/256 10.57© 7 »756/256 10.57
DEA25295A 1949-06-25 1956-07-12 Process for improving the adhesive strength of enamel coatings on iron or steel Pending DE1017876B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US674490XA 1949-06-25 1949-06-25

Publications (1)

Publication Number Publication Date
DE1017876B true DE1017876B (en) 1957-10-17

Family

ID=22076058

Family Applications (2)

Application Number Title Priority Date Filing Date
DEA1920A Expired DE828626C (en) 1949-06-25 1950-06-16 Process to improve the adhesive strength of enamel coatings on iron and steel
DEA25295A Pending DE1017876B (en) 1949-06-25 1956-07-12 Process for improving the adhesive strength of enamel coatings on iron or steel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEA1920A Expired DE828626C (en) 1949-06-25 1950-06-16 Process to improve the adhesive strength of enamel coatings on iron and steel

Country Status (6)

Country Link
US (1) US2755210A (en)
BE (1) BE496572A (en)
CA (1) CA551869A (en)
DE (2) DE828626C (en)
FR (1) FR1055780A (en)
GB (2) GB674490A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957537C (en) * 1952-10-26 1957-02-07 Basf Ag Process for the particularly highly acid-resistant enamelling of metallic materials
US2819207A (en) * 1953-06-22 1958-01-07 Republic Steel Corp Process for enameling steel
US2886498A (en) * 1957-09-06 1959-05-12 Republic Steel Corp Process of preparing steel for enameling
US2940865A (en) * 1957-10-14 1960-06-14 Smith Corp A O Method of applying a glass coating to steel by using an intermediate layer of nickelous oxide
US3303064A (en) * 1963-11-29 1967-02-07 Inland Steel Co Alloy steel article and method of producing
US3333987A (en) * 1964-12-02 1967-08-01 Inland Steel Co Carbon-stabilized steel products and method of making the same
FR2213353A1 (en) * 1972-11-21 1974-08-02 Usinor Pretreatment of steel strip - providing a coating which can be directly enamelled
US4012239A (en) * 1972-11-21 1977-03-15 Union Siserurgique du Nord et de l'Est de la France, par abreviation "USINOR" Process for treating steel sheets for the purpose of enamelling the sheets
USRE33876E (en) * 1975-09-11 1992-04-07 United Technologies Corporation Thermal barrier coating for nickel and cobalt base super alloys
JPS5825758B2 (en) * 1979-11-22 1983-05-30 日本鋼管株式会社 Steel plate for welded painted cans
WO1999065616A1 (en) 1998-06-17 1999-12-23 A. O. Smith Corporation Porcelain enamel coating for high-carbon steel
US11236427B2 (en) 2017-12-06 2022-02-01 Polyvision Corporation Systems and methods for in-line thermal flattening and enameling of steel sheets

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US979931A (en) * 1909-10-29 1910-12-27 Metalloids Ltd Scaling, annealing, and coating metals.
US1360318A (en) * 1916-11-21 1920-11-30 New England Enameling Co White-enameled steel vessel
US2032256A (en) * 1932-09-06 1936-02-25 American Rolling Mill Co Metal articles for coating
US2101950A (en) * 1934-03-21 1937-12-14 American Rolling Mill Co Preparing metal for enameling
US2127388A (en) * 1934-04-07 1938-08-16 American Rolling Mill Co Metal article for coating
US2206597A (en) * 1934-04-07 1940-07-02 American Rolling Mill Co Coating metal articles
US2187844A (en) * 1936-12-29 1940-01-23 Allegheny Steel Co Manufacture of coated strip for tubing production
US2199804A (en) * 1938-08-10 1940-05-07 Archer L Matthes Vitreous enameled article
US2455331A (en) * 1944-10-24 1948-11-30 Joseph C Eckel Method of enameling
US2449023A (en) * 1945-07-09 1948-09-07 Thos Firth & John Brown Ltd Austentic alloy steels

Also Published As

Publication number Publication date
GB795632A (en) 1958-05-28
GB674490A (en) 1952-06-25
BE496572A (en) 1950-10-16
US2755210A (en) 1956-07-17
FR1055780A (en) 1954-02-22
DE828626C (en) 1952-01-21
CA551869A (en) 1958-01-21

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