US2038548A - Method of coating metal - Google Patents

Method of coating metal Download PDF

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Publication number
US2038548A
US2038548A US743281A US74328134A US2038548A US 2038548 A US2038548 A US 2038548A US 743281 A US743281 A US 743281A US 74328134 A US74328134 A US 74328134A US 2038548 A US2038548 A US 2038548A
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US
United States
Prior art keywords
coating
wire
cadmium
hot
zinc
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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 - Lifetime
Application number
US743281A
Inventor
Domm Elgin Carleton
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National Standard Co
Original Assignee
National Standard Co
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Filing date
Publication date
Application filed by National Standard Co filed Critical National Standard Co
Priority to US743281A priority Critical patent/US2038548A/en
Application granted granted Critical
Publication of US2038548A publication Critical patent/US2038548A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/934—Electrical process
    • Y10S428/935—Electroplating
    • 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
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/939—Molten or fused 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00—Resilient tires and wheels
    • Y10T152/10—Tires, resilient
    • Y10T152/10495—Pneumatic tire or inner tube
    • Y10T152/10819—Characterized by the structure of the bead portion of the tire
    • Y10T152/10846—Bead characterized by the chemical composition and or physical properties of elastomers or the like
    • 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.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12556—Organic component
    • Y10T428/12562—Elastomer
    • 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
    • Y10T428/12785—Group IIB metal-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
    • Y10T428/12785—Group IIB metal-base component
    • Y10T428/12792—Zn-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
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2945—Natural rubber in coating

Definitions

  • Patentecl ⁇ Apr. 28, 1936 I UNITED STATES PATENT OFFICE METHOD OF COATING NIETAL Elgin Carleton Domm, Niles, Mich., assignor to National-Standard Company, Niles, Mich., a corporation of Michigan 6 Claims.
  • This invention relates to improvements in method of coating metal.
  • the invention is particularly applicable to coating strands of wire to be used in reinforcing the bead of the tire.
  • the wire when so used commonly acts as a tension-member, and is imbedded in a rubber or rubber compound. When so used, the wire is exposed to Corrosive and rusting agents, particularly to moisture which may seep into the tire.
  • a metal for example wire suitable for use in tire heads, is first hot-dipped to provide a coating of cadmium. This may be done, for example, by dipping the wire in hot molten cadmium. A coating of zine is then put over the first coat by electrolysis or by electroplating, preferably by lectroplating.
  • copper'or other suitable'material may be applied over the corrosive-resistant coating in order to increase the adhesiveness of the wire to rubber. It is frequently desirable to apply such a coating when wire is used as a reinr forcement for a tire bead.
  • the new process heren described is especially useful in procuring a coating of a desired and uniform thickness.
  • I give the wire a hot coat first, and preferably I wipe this thin.
  • the operation can be continued to give exactly a desired thickness.
  • the coating acquires a smooth, uniform character which is free from holes, defects, and the like.
  • the method of coating a metal to increase its corrosion resistance comprising first applying to it molten cadmium, and then applying a second coating of zinc by electroplating over the first coating.
  • the method'of producing a ferrous tirebead reinforcement wire of uniform corrosionresistance which comprises first coating a ferrous wire with cadmium by the hot-dip process, and then electro-plating zinc upon the hot-dipped wire to produce a uniform 'coating of desired thickness.
  • a coated ferrous article comprising a ferrous base having a hot-dipped coating of cadmium thereon, and over that an electrodeposited coating substantially wholly of Zinc..
  • a coated ferrous wire comprising a ferrous' base wire having a hot-dipped coating of cadmium thereon, and over that an electrodeposited coating substantially wholly of Zinc.
  • a coated tire bead wire comprising a ferrous base wire having a hot-dipped coating of cadmium thereon, an electrodeposited coating substantially wholly of Zinc thereon, and having a coating of rubber Vulcanized thereto.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Ropes Or Cables (AREA)
  • Tires In General (AREA)

Description

Patentecl` Apr. 28, 1936 I UNITED STATES PATENT OFFICE METHOD OF COATING NIETAL Elgin Carleton Domm, Niles, Mich., assignor to National-Standard Company, Niles, Mich., a corporation of Michigan 6 Claims.
This invention relates to improvements in method of coating metal.
In the Crapo Patent No. 1,984,335, issued Dec- 11, 1934, is described a method of coating a ferrous article by hot-galvanizing' it with Zinc, and over that depositing by some other method an additional coating of zinc or a coating of cadmium.
It has now been discovered thata corrosionresisting .coating may be produced which has considerable advantage under certain circumstances, particularly with respect to the type of corrosion of which the salt spray is typical, by applyin a hot-dipped coating of cadmium, and then electroplating a coating of zinc thereon.
The invention is particularly applicable to coating strands of wire to be used in reinforcing the bead of the tire. The wire when so used commonly acts as a tension-member, and is imbedded in a rubber or rubber compound. When so used, the wire is exposed to Corrosive and rusting agents, particularly to moisture which may seep into the tire.
The drawing shows in diagrammatic form an embodimentof my invention.. p
In accordance with the invention, a metal, for example wire suitable for use in tire heads, is first hot-dipped to provide a coating of cadmium. This may be done, for example, by dipping the wire in hot molten cadmium. A coating of zine is then put over the first coat by electrolysis or by electroplating, preferably by lectroplating.
Not only does a double coating applied by the above-mentioned method give very good corrosion resistance, but it has been discovered that the electro-coat tends to fill in the depressions in the lower cadmium coat and thus produce a uniform and sr'nooth coating. This is wholly unexpected.
If desired, copper'or other suitable'material may be applied over the corrosive-resistant coating in order to increase the adhesiveness of the wire to rubber. It is frequently desirable to apply such a coating when wire is used as a reinr forcement for a tire bead.
The new process heren described is especially useful in procuring a coating of a desired and uniform thickness. In practice, I give the wire a hot coat first, and preferably I wipe this thin.
In the next step, when the coating isput on by electroplating, the operation can be continued to give exactly a desired thickness. At the same time the coating acquires a smooth, uniform character which is free from holes, defects, and the like.
The foregoing description has been given for clearness 'of understanding only, and no unnecessary limitations are to be understood therefrom, but the appended claims should be construed as broadly as permissible in View of the prior art.
This application is a division of my co-pending application Serial No. 653549, filed January 25, 1933.
What I regard as new and desire to secure by Letters Patent is:
1. The process of coating a ferrous article which consists in applying to it by the hot-dip process a coating of cadmium, and electrodepositing thereon an outer coating substantially wholly of znc.
2. The method of coating a metal to increase its corrosion resistance comprising first applying to it molten cadmium, and then applying a second coating of zinc by electroplating over the first coating.
3. The method'of producing a ferrous tirebead reinforcement wire of uniform corrosionresistance which comprises first coating a ferrous wire with cadmium by the hot-dip process, and then electro-plating zinc upon the hot-dipped wire to produce a uniform 'coating of desired thickness.
4. A coated ferrous article, comprising a ferrous base having a hot-dipped coating of cadmium thereon, and over that an electrodeposited coating substantially wholly of Zinc..
5. A coated ferrous wire, comprising a ferrous' base wire having a hot-dipped coating of cadmium thereon, and over that an electrodeposited coating substantially wholly of Zinc.
.6. A coated tire bead wire comprising a ferrous base wire having a hot-dipped coating of cadmium thereon, an electrodeposited coating substantially wholly of Zinc thereon, and having a coating of rubber Vulcanized thereto.
ELGIN CARLETON DOMM.
US743281A 1933-01-25 1934-09-08 Method of coating metal Expired - Lifetime US2038548A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US743281A US2038548A (en) 1933-01-25 1934-09-08 Method of coating metal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65354933A 1933-01-25 1933-01-25
US743281A US2038548A (en) 1933-01-25 1934-09-08 Method of coating metal

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724177A (en) * 1950-09-09 1955-11-22 Robertson Co H H Method of making a protected metal article
US3133584A (en) * 1962-07-12 1964-05-19 Nat Standard Co Rope construction
US3215513A (en) * 1962-01-04 1965-11-02 Clevite Corp Bearing material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724177A (en) * 1950-09-09 1955-11-22 Robertson Co H H Method of making a protected metal article
US3215513A (en) * 1962-01-04 1965-11-02 Clevite Corp Bearing material
US3133584A (en) * 1962-07-12 1964-05-19 Nat Standard Co Rope construction

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