US1564581A - Electroplating - Google Patents

Electroplating Download PDF

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Publication number
US1564581A
US1564581A US710796A US71079624A US1564581A US 1564581 A US1564581 A US 1564581A US 710796 A US710796 A US 710796A US 71079624 A US71079624 A US 71079624A US 1564581 A US1564581 A US 1564581A
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US
United States
Prior art keywords
nickel
zinc
coating
electro
deposited
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 - Lifetime
Application number
US710796A
Inventor
Willis R King
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.)
Hanson & Van Winkle Co
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Hanson & Van Winkle Co
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Publication date
Application filed by Hanson & Van Winkle Co filed Critical Hanson & Van Winkle Co
Priority to US710796A priority Critical patent/US1564581A/en
Application granted granted Critical
Publication of US1564581A publication Critical patent/US1564581A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/10—Electroplating with more than one layer of the same or of different metals
    • C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
    • C25D5/14—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium two or more layers being of nickel or chromium, e.g. duplex or triplex layers
    • 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
    • Y10S428/936—Chemical deposition, e.g. electroless plating
    • 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
    • Y10T428/12—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
    • Y10T428/12944—Ni-base component

Definitions

  • the object of the present invention is to apply a nickel surface to corrosive metals as,
  • nickel electro-deposited on iron does not prevent corrosion and it has been customary to deposit a preliminary coating of zinc upon the iron and then coat the zinc with l a deposit of nickel. It is, however, very diflicult to nickel-plate over zinc. I have discovered that if the preliminary deposit is made with an admixture of nickel, the resultant nickel-zinc alloy will not only form a protective coating against corrosion but will also render very easy the subsequent electro-deposition of the nickel coating that forms the outer surface.
  • the nickel-zinc alloy may contain as much as 80 to-90% of zinc and still accomplish the desired results. . The' minimum limit of the zinc content is approximately 7 5%.
  • a suitable solution for the purpose comprises sulphate of nickel and sulphate of zinc or a mixture of a double sulphate of nickel and ammonia and sulphate of zinc.
  • sulphate of nickel and sulphate of zinc or a mixture of a double sulphate of nickel and ammonia and sulphate of zinc.
  • any additional agents for increasing the conductivity or the like purpose may, of course, be added to the electrolyte any additional agents for increasing the conductivity or the like purpose.
  • 1 is a plate of iron or the like corrosive metal that it is desired to 1924.
  • 2 is the layer of nickel-zinc alloy deposited on the iron to protect it from corrosion.
  • 3 is a surface coating of pure nickel electro-deposited on the nickel-zinc alloy.
  • Such an article so plated possesses a maximum of protection against corrosion, with the added beauty and hardness of the nickel surface.
  • a coating made according to this process will have a maximum of cohesion and a minimum of cost. 4
  • the method of electro-plating on corrodible metals which comprises applying first a coating of nickel-zinc alloy and then depositing upon the latter an outside coating of nickel.
  • the method of applying protective coatings to articles of corrodible metal which consists in immersing such articles in an electrolytic bath containing salts of nickel and zinc, passing electric current to deposit an alloy of nickel-zinc on the articles, removing the' articles from the bath and subsequently' placing them in a bath of nickel salt, and again passing electric current. through the bath to deposit a surface coating of nickel on the intermediate coating of nickel-zinc.

Description

Dec. 3, 1925' 1,564,581 W. R. KING ELECTROPLATING Filed May 3, 924
Nye/r5:
Mc/rn -z//va A4407 ma/v I l 1 Z 3 WITNESSES INVENTOR I 1mm 6!. IAIN Patented Dec. 8, 1925.
UNITED STATES PATENT DFFICE.
WILLIS It. KING, OF NEWARK, NEW JERSEY, ASSIGNDR TO THE HANSON & VAN WINKLE COMPANY, OF NEWARK, NEW JERSEY, A CORPORATIQN OF NEW JERSEY.
ELECTBOPLATING.
Application filed May 3,
To all whom it may concern:
Be it known that I, WILLIS R. KING, a citizen of the United States, and a resident of Newark, county of Essex, State of New Jersey, have invented certain new and useful Improvements in Electroplating, of which the following is a specification.
The object of the present invention is to apply a nickel surface to corrosive metals as,
for example, iron or steel. As is Well known,
nickel electro-deposited on iron does not prevent corrosion and it has been customary to deposit a preliminary coating of zinc upon the iron and then coat the zinc with l a deposit of nickel. It is, however, very diflicult to nickel-plate over zinc. I have discovered that if the preliminary deposit is made with an admixture of nickel, the resultant nickel-zinc alloy will not only form a protective coating against corrosion but will also render very easy the subsequent electro-deposition of the nickel coating that forms the outer surface. The nickel-zinc alloy may contain as much as 80 to-90% of zinc and still accomplish the desired results. .The' minimum limit of the zinc content is approximately 7 5%. A suitable solution for the purpose comprises sulphate of nickel and sulphate of zinc or a mixture of a double sulphate of nickel and ammonia and sulphate of zinc. There may, of course, be added to the electrolyte any additional agents for increasing the conductivity or the like purpose.
In the accompanying drawing is illustrated an article with protective coatings electro-deposited according to my invention.
In said drawings, 1 is a plate of iron or the like corrosive metal that it is desired to 1924. Serial No. 710,796.
protect. 2 is the layer of nickel-zinc alloy deposited on the iron to protect it from corrosion. 3 is a surface coating of pure nickel electro-deposited on the nickel-zinc alloy.
Such an article so plated possesses a maximum of protection against corrosion, with the added beauty and hardness of the nickel surface. A coating made according to this process will have a maximum of cohesion and a minimum of cost. 4
1. The method of electro-plating on corrodible metals, which comprises applying first a coating of nickel-zinc alloy and then depositing upon the latter an outside coating of nickel. i
2. The method of applying protective coatings to articles of corrodible metal, which consists in immersing such articles in an electrolytic bath containing salts of nickel and zinc, passing electric current to deposit an alloy of nickel-zinc on the articles, removing the' articles from the bath and subsequently' placing them in a bath of nickel salt, and again passing electric current. through the bath to deposit a surface coating of nickel on the intermediate coating of nickel-zinc.
3. As a new article of manufacture, an article having a corrodible base, an intermediate coating of electro-deposited nickelzinc alloy, and a surface coating of nickel.
4:. As a new article of manufacture, an article having a. base of corrodible metal, and an intermediate rotective coating of electro-deposited nicke -zinc alloy having a preponderance of zinc and a surface coating of electro-deposited nickel.
, WILLIS R. KING.
US710796A 1924-05-03 1924-05-03 Electroplating Expired - Lifetime US1564581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US710796A US1564581A (en) 1924-05-03 1924-05-03 Electroplating

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US710796A US1564581A (en) 1924-05-03 1924-05-03 Electroplating

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US1564581A true US1564581A (en) 1925-12-08

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419231A (en) * 1940-12-21 1947-04-22 Standard Steel Spring Co Electroplated corrosion proof metal articles and method of making the same
US2989446A (en) * 1956-10-29 1961-06-20 Rockwell Standard Co Electroplating
US3064337A (en) * 1958-05-19 1962-11-20 Rockwell Standard Co Composite metal article
FR2465794A2 (en) * 1979-09-25 1981-03-27 Whyco Chromium Co MULTILAYER PLATING TO GIVE FERROUS METAL SUPPORT AN IMPROVED CORROSION RESISTANCE
US4746408A (en) * 1987-11-05 1988-05-24 Whyco Chromium Company, Inc. Multi layer corrosion resistant coating
US4837090A (en) * 1987-11-05 1989-06-06 Whyco Chromium Company, Inc. Corrosion resistant coating for fasteners
US4975337A (en) * 1987-11-05 1990-12-04 Whyco Chromium Company, Inc. Multi-layer corrosion resistant coating for fasteners and method of making
US5275892A (en) * 1987-11-05 1994-01-04 Whyco Chromium Company, Inc. Multi-layer corrosion resistant coating for fasteners and method of making
US20050273994A1 (en) * 2004-06-10 2005-12-15 Bergstrom David S Clad alloy substrates and method for making same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419231A (en) * 1940-12-21 1947-04-22 Standard Steel Spring Co Electroplated corrosion proof metal articles and method of making the same
US2989446A (en) * 1956-10-29 1961-06-20 Rockwell Standard Co Electroplating
US3064337A (en) * 1958-05-19 1962-11-20 Rockwell Standard Co Composite metal article
FR2465794A2 (en) * 1979-09-25 1981-03-27 Whyco Chromium Co MULTILAYER PLATING TO GIVE FERROUS METAL SUPPORT AN IMPROVED CORROSION RESISTANCE
US4746408A (en) * 1987-11-05 1988-05-24 Whyco Chromium Company, Inc. Multi layer corrosion resistant coating
US4837090A (en) * 1987-11-05 1989-06-06 Whyco Chromium Company, Inc. Corrosion resistant coating for fasteners
US4975337A (en) * 1987-11-05 1990-12-04 Whyco Chromium Company, Inc. Multi-layer corrosion resistant coating for fasteners and method of making
US5275892A (en) * 1987-11-05 1994-01-04 Whyco Chromium Company, Inc. Multi-layer corrosion resistant coating for fasteners and method of making
US20050273994A1 (en) * 2004-06-10 2005-12-15 Bergstrom David S Clad alloy substrates and method for making same
US8387228B2 (en) * 2004-06-10 2013-03-05 Ati Properties, Inc. Clad alloy substrates and method for making same
US8813342B2 (en) 2004-06-10 2014-08-26 Ati Properties, Inc. Clad alloy substrates and method for making same

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