US1970548A - Metal finish - Google Patents

Metal finish Download PDF

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Publication number
US1970548A
US1970548A US569853A US56985331A US1970548A US 1970548 A US1970548 A US 1970548A US 569853 A US569853 A US 569853A US 56985331 A US56985331 A US 56985331A US 1970548 A US1970548 A US 1970548A
Authority
US
United States
Prior art keywords
metal
copper
tin
coating
electroplated
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
US569853A
Other languages
English (en)
Inventor
Harrison M Batten
Carl J Welcome
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.)
City Auto Stamping Co
Original Assignee
City Auto Stamping Co
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
Priority to FR743797D priority Critical patent/FR743797A/fr
Application filed by City Auto Stamping Co filed Critical City Auto Stamping Co
Priority to US569853A priority patent/US1970548A/en
Priority to GB29160/32A priority patent/GB409001A/en
Application granted granted Critical
Publication of US1970548A publication Critical patent/US1970548A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/56Electroplating: Baths therefor from solutions of alloys
    • C25D3/58Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/922Static electricity metal bleed-off metallic stock
    • Y10S428/9335Product by special process
    • Y10S428/934Electrical process
    • Y10S428/935Electroplating
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12472Microscopic interfacial wave or roughness
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12708Sn-base component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12708Sn-base component
    • Y10T428/12722Next to Group VIII metal-base component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12806Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826Group VIB metal-base component
    • Y10T428/12847Cr-base component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12806Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826Group VIB metal-base component
    • Y10T428/12847Cr-base component
    • Y10T428/12854Next to Co-, Fe-, or Ni-base component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771Transition metal-base component
    • Y10T428/12861Group VIII or IB metal-base component
    • Y10T428/12903Cu-base component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12993Surface feature [e.g., rough, mirror]

Definitions

  • An object of the invention is to produce an electrodeposit which can be built up to a con: siderable thickness without blistering or becoming roughened.
  • Another object of the invention is to produce'a coating adapted to be easily buiied to a high 'polish.
  • Another object is to obtain a metal or composition that may be electrodeposited over itself in successive layers.
  • Another object is to obtain a coating that is not only highly resistant to corrosion in itself but has that property of being electrodeposited to or buiied to a dense surface that closes up porosity within the electrodeposited coating.
  • a further object is to produce a coating adapted for use as an intermediate between a relatively rough polished or unpolished base metal and a r highly lustrous finish metal such as chromium.
  • Our improved electrodeposited coating comprises a mixture or alloy of the two metals copper and tin.-
  • the coating is obtained by a process which comprises the'electrolyzing of a cyanide solution containing both copper and tin using anodes containing both copper and tin.
  • the composition of the bath may vary widely under different conditions depending-on the requirements of the particular work under treatment but in general it is desirable to maintain the proportions within the following limits:
  • the main desirable ingredients are the copper cyanide, soluble stannate, soluble free cyanide, and a suitable alkali.
  • Equivalent reagents for obtaining a solution containing such ingredients may also be used such for example as the potassium salts instead of the sodium salts and other equivalent substitutes.
  • the recommended temperature of operation of the bath is between 50 and 60 C. but satisfactory electroplating can be obtained at room temperatures although with less current efliciency.
  • the anodes used are preferably of pure copper and pure tin alternately arranged but anodes of a mixture or alloy of copper and tin may be used in lieu thereof.
  • the anodes show good corrosion in the bath, thereby maintaining the preferred composition of the electrolyte. It is a noteworthy fact that the copper anode is maintained very bright in the bath in contradistinction to the dull appearance due to oxide formation in other electroplating processes involving the use of copper anodes.
  • Our process may be used for electroplating directly on iron and its alloys including steel. It may also be used for plating onother metals whether they bethe base metal or onlya coating over another base metal. Examples of such metals are copper, nickel, tin, zinc, cobalt, silver, as well as combinations of these metals such as nickel and cobalt, copper and zinc, zinc and aluminum, cadmium and v silver and copper and nickel.
  • the above metals can also be electrortCiiur new composition hasthe following prope es:
  • Ihe electroplated coating may advantageously be used as an undercoat in the production of bright metal finishes.
  • chromium plating an automobile radiator .shell in order to obtain both resistance to corrosion and high luster, it iscommon practice to take the steel shell as it comes from the dies and subject it to a series of polishingoperations to remove die marks, cuts, slight metal distortions, pits and othersurface defects in the metal as otherwise these blemishes would show in the final finish. With our process, we are enabled to eliminate the mechanical polishing of the base metal and electrodeposit our metal or alloy directly on the unpolished metal.
  • Electrodeposited metal containing approximately.85% copper and 15% tin.
  • a composite article comprising a base metal having surface irregularities therein, an electroplated coating composed of copper and tin bond.
  • a composite article comprising a base metal having surface irregularities therein, an electroplated coating composed of Ill-25% tin and balance copper bonded to .said metal and having a smooth, bufled surface free from corresponding surface irregularities and an overcoating of an other metal.
  • a composite article comprising a base metal having surface irregularities therein, an electroplated coating bonded to said metal and having a smooth, buffed surface free from corresponding surface irregularities, said coating comprising a preponderance of copper and a substantial amount of tin and characterized by a substan tially higher spreading power than electroplated copper,'and an outer coating of bright metal.
  • a composite article comprising a base metal having surface irregularities therein, an electroplated coating composed of copper and tin bonded to said metal and having a'smooth, bufied surface free from corresponding surface irregularities and an outer coating of chromium.
  • a composite article comprising a base metal having surface irregularities .therein, an electroplated coating composed of copper and-tin bonded to said metal and having a smooth, buffed surface free from corresponding surface irregularities, a superposed coating of nickel and an outer coating of chromium.
  • a composite article comprising a base metal rough polished, with 80 to 120 emery, an electroplated coating composed of copper or tin bonded vto said base metal and having a smooth bufled surface.
  • An article comprising a base metal, a superposed electroplated layer comprising copper and tin and an outer layer of a bright metal.
  • An article comprising a base metal, a superposed electroplated layer comprising copper and tin and an outer coating of chromium.
  • An article comprising a base metal, a superposed electroplated layer comprising copper and tinand a superposed layer of nickel.
  • An article comprising a superposed electroplated layer comprising copper and tin and an outer layer of a bright metal.
  • An article comprising a ferrous'metal, a contacting'electroplated layer comprising copper and tin and a contacting layer of bright metal.
  • An article comprising a ferrous metal and successive contacting electroplated layers of bronze and chromium, said bronze comprising I copper and tin.
  • An article comprising successive contacting layers of ferrous metal, electrodeposited bronze, nickel and chromium, said bronze comprising copper and tin.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
US569853A 1931-10-19 1931-10-19 Metal finish Expired - Lifetime US1970548A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR743797D FR743797A (enrdf_load_stackoverflow) 1931-10-19
US569853A US1970548A (en) 1931-10-19 1931-10-19 Metal finish
GB29160/32A GB409001A (en) 1931-10-19 1932-10-18 Metal finish and process of obtaining the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569853A US1970548A (en) 1931-10-19 1931-10-19 Metal finish

Publications (1)

Publication Number Publication Date
US1970548A true US1970548A (en) 1934-08-21

Family

ID=24277152

Family Applications (1)

Application Number Title Priority Date Filing Date
US569853A Expired - Lifetime US1970548A (en) 1931-10-19 1931-10-19 Metal finish

Country Status (3)

Country Link
US (1) US1970548A (enrdf_load_stackoverflow)
FR (1) FR743797A (enrdf_load_stackoverflow)
GB (1) GB409001A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507400A (en) * 1943-08-02 1950-05-09 Sk Wellman Co Method of electroplating with iron and cobalt
US2528601A (en) * 1946-01-05 1950-11-07 Metal & Thermit Corp Copper-tin alloy plating
US2658032A (en) * 1949-06-11 1953-11-03 City Auto Stamping Co Electrodeposition of bright copper-tin alloy
US2667429A (en) * 1949-02-11 1954-01-26 Rca Corp Coating mixture with addition agent and method of coating therewith
US2918722A (en) * 1955-11-02 1959-12-29 Nat Standard Co Electrical communication wire
US3051633A (en) * 1959-03-16 1962-08-28 Sealed Power Corp Process of chromium plating vented piston rings
US3321328A (en) * 1962-11-15 1967-05-23 Ibm Coating of aluminum substrates with a magnetic material
US3869261A (en) * 1974-05-22 1975-03-04 Usui Kokusai Sangyo Kk Corrosion-resistant composite coating to be formed on steel materials and method of forming the same
ITVI20120300A1 (it) * 2012-11-08 2014-05-09 Italo Caoduro Oggetto con strato superficiale di copertura ottenuto per deposizione elettrolitica, soluzione elettrolitica impiegata in tale deposizione e metodo di realizzazione di tale oggetto.
IT202100008084A1 (it) * 2021-03-31 2022-10-01 Bluclad S P A Soluzione elettrolitica per l’elettrodeposizione su substrato metallico di uno strato preparatore a base di rame e stagno

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1219708A (en) * 1984-05-01 1987-03-31 Michael J.H. Ruscoe Aureate coins, medallions and tokens
CA2013639C (en) * 1990-04-02 1998-06-23 Mitsuhiro Yasuda Electroplated blank for coins, medallions and tokens

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507400A (en) * 1943-08-02 1950-05-09 Sk Wellman Co Method of electroplating with iron and cobalt
US2528601A (en) * 1946-01-05 1950-11-07 Metal & Thermit Corp Copper-tin alloy plating
US2667429A (en) * 1949-02-11 1954-01-26 Rca Corp Coating mixture with addition agent and method of coating therewith
US2658032A (en) * 1949-06-11 1953-11-03 City Auto Stamping Co Electrodeposition of bright copper-tin alloy
US2918722A (en) * 1955-11-02 1959-12-29 Nat Standard Co Electrical communication wire
US3051633A (en) * 1959-03-16 1962-08-28 Sealed Power Corp Process of chromium plating vented piston rings
US3321328A (en) * 1962-11-15 1967-05-23 Ibm Coating of aluminum substrates with a magnetic material
US3869261A (en) * 1974-05-22 1975-03-04 Usui Kokusai Sangyo Kk Corrosion-resistant composite coating to be formed on steel materials and method of forming the same
ITVI20120300A1 (it) * 2012-11-08 2014-05-09 Italo Caoduro Oggetto con strato superficiale di copertura ottenuto per deposizione elettrolitica, soluzione elettrolitica impiegata in tale deposizione e metodo di realizzazione di tale oggetto.
EP2730683A1 (en) * 2012-11-08 2014-05-14 Italo Caoduro Object with surface covering layer obtained through electrolytic deposition, electrolytic solution used for said deposition and method for making said object.
IT202100008084A1 (it) * 2021-03-31 2022-10-01 Bluclad S P A Soluzione elettrolitica per l’elettrodeposizione su substrato metallico di uno strato preparatore a base di rame e stagno

Also Published As

Publication number Publication date
GB409001A (en) 1934-04-18
FR743797A (enrdf_load_stackoverflow) 1933-04-06

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