US1970548A - Metal finish - Google Patents

Metal finish Download PDF

Info

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
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

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/58—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of copper
    • 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
    • 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.]
    • Y10T428/12708—Sn-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.]
    • Y10T428/12708—Sn-base component
    • Y10T428/12722—Next to Group VIII 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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-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
    • Y10T428/12806—Refractory [Group IVB, VB, or VIB] metal-base component
    • Y10T428/12826—Group VIB metal-base component
    • Y10T428/12847—Cr-base component
    • Y10T428/12854—Next to Co-, Fe-, or Ni-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
    • Y10T428/12903—Cu-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
    • Y10T428/12993—Surface 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.

Description

Patented Aug. 21, 1934 UNITED. STATES METAL FINISH Harrison M. Batten, Highland Park, and Carl J.
Welcome, Lansing, Mich., assignors to The City Auto. Stamping company Toledo, Ohio, a corporation of Ohio No Drawing. Application October 19, 1931 Serial No. 569,853
16 Claims. (Cl. 20413) The invention relates to electrodeposited coatings upon a base metal either polished or unpolished. The process of electrodeposition herein described 'forms part of the subject matter of our co-pending application, Serial No. 685,146,
filed August 14, 1933.
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.
These and other objects are obtained in the electrodeposited coating hereinafter more fully described. 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:
Copper cyanide 011(0103. 5 to 35 grams per liter.- Sodium stannate NmSnO 5 to 35 grams per liter. Sodium cyanide (free)- NaOn 10 to 40 grams per liter. Sodium hydroxlde. NaOH 5 to 30 grams per l1ter.
' In the above table, 'it is to be understood that 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.
As an example of a specific formula for the plated over the alloy formed by our process.
bath, the following preferred composition may be used:
The above solution gives good electrodeposits at current densities from 10 to 80 amperes per square foot and it is possible to carry the current density much higher. Adensity of 320 amperes per square foot has been used but this results in an abnormally high evolution of hydrogen and requiressome means for inhibiting the hydrogen at the cathode in order to obtain commercial satisfaction. v
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.
The operation of our bath at different current densities results in an electrodeposit of varying composition, the general rule being that at the lower current densities, there is a greater percentage of tin in the coating than at the higher current densities. With the preferred bath composition given above, we have. obtained deposits containing 80% copper and 20% tin at 20 amperes per square foot and deposits containing 87% copper and 13% tin at 80 amperes per square foot. These properties may be varied however "by changing the composition of the electrolyte.
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:
(a) A high spreading property.
(b) Easy bufling.
(c) A minimum loss of metal upon bufling.
((1) High corrosion resistance.
(e) An improved surface for superimposing another coating. I
(I) Allows other metals to. be electroplated thereon in a smooth lustrous condition- (a) Does not peel even in thick deposits.
(it) Can besuperimposed over itself.
The process for obtaining our alloy as herein before set forth has the following advantageous properties: 4 r
1. High rate of deposition.
2. A greatly improved ability to be electrodeposited to a greater thickness without becoming either blistered or rough.
3. Ease of control. I
4. A greater ability to produce a suitable coating over wide ranges of solution composition.
5. A greater ability to produce,a suitable coating over wide ranges of current density.
6. A greater ability to produce a suitable coating from a hot or cold bath. 7. Moredeposit per unit of power input.
\ 8. The ability 'to control the composition of plated coating by varying the following factors, voltage, temperature, composition of solution and kind and distribution of suitable anodes.
Ihe electroplated coating may advantageously be used as an undercoat in the production of bright metal finishes. For example in 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. We place a suificiently thick coating of alloy so that it can be buffed without cutting through and because of the high spreading power of the alloy, the surface defects are completely-oblit erated leaving a highly buifed smooth surface for the final finish. Any type of finishmay then be superposed on the bronze. 'For example, bright chromium may be directly superposed or a nickel layer may be deposited, then buffed and finally covered with chromium. Our process eliminates the original polishing of the base metal and "also makes the finish more resistant to corrosion be cause the exceptional spreading. power of our metal causes the metal to be less porous." It is understood, however; that this improved process" may be also advantageously applied to metal surthe novel resultshereinbefore set What we claim as our invention is:
1."Electrodeposited metal containing IO-25% tin and the balance substantially copper.
2. Electrodeposited metal containing approximately.85% copper and 15% tin.
3. A composite article comprising a base metal having surface irregularities therein, an electroplated coating composed of copper and tin bond.-
ed to said metal and having a smooth, buffed surface free from corresponding. surface irregularities and an overcoating of another metal.
4. 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.
5. 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.
6. 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.
7 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.
8. 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.
9. An article comprising a base metal, a superposed electroplated layer comprising copper and tin and an outer layer of a bright metal.-
10. An article comprising a base metal, a superposed electroplated layer comprising copper and tin and an outer coating of chromium.
11. An article comprising a base metal, a superposed electroplated layer comprising copper and tinand a superposed layer of nickel.
12. 'An article comprising a base metal, a su-' .perposed electroplated layer comprising copper and tin, a superposed layer of nickel, and a superposed layer of chromium.
13; An article comprising a superposed electroplated layer comprising copper and tin and an outer layer of a bright metal.
14; An article comprising a ferrous'metal, a contacting'electroplated layer comprising copper and tin and a contacting layer of bright metal.
15. An article comprising a ferrous metal and successive contacting electroplated layers of bronze and chromium, said bronze comprising I copper and tin.
16. An article comprising successive contacting layers of ferrous metal, electrodeposited bronze, nickel and chromium, said bronze comprising copper and tin.
. HARRISON M. BA'I'I'EN.
CARL J. WELCOME- 1 ferrous metal, a
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 (en) 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 (en)
FR (1) FR743797A (en)
GB (1) GB409001A (en)

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 (en) * 2012-11-08 2014-05-09 Italo Caoduro OBJECT WITH SURFACE COVERING LAYER OBTAINED BY ELECTROLYTIC DEPOSITION, ELECTROLYTIC SOLUTION USED IN SUCH A DEPOSITION AND METHOD OF REALIZING THIS ITEM.
IT202100008084A1 (en) * 2021-03-31 2022-10-01 Bluclad S P A ELECTROLYTIC SOLUTION FOR THE ELECTRODEPOSITION ON A METALLIC SUBSTRATE OF A COPPER AND TIN BASED PREPARATORY LAYER

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 (en) * 2012-11-08 2014-05-09 Italo Caoduro OBJECT WITH SURFACE COVERING LAYER OBTAINED BY ELECTROLYTIC DEPOSITION, ELECTROLYTIC SOLUTION USED IN SUCH A DEPOSITION AND METHOD OF REALIZING THIS ITEM.
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 (en) * 2021-03-31 2022-10-01 Bluclad S P A ELECTROLYTIC SOLUTION FOR THE ELECTRODEPOSITION ON A METALLIC SUBSTRATE OF A COPPER AND TIN BASED PREPARATORY LAYER

Also Published As

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

Similar Documents

Publication Publication Date Title
US2470775A (en) Electroplating nickel and cobalt with periodic reverse current
US2678909A (en) Process of electrodeposition of metals by periodic reverse current
US1970548A (en) Metal finish
GB2032961A (en) Multi-layer corrosion resistant plating utilizing alloys hving micro-throwing powr
US1931704A (en) Process of protecting ferrous metals
US2871550A (en) Composite chromium electroplate and method of making same
US20060257683A1 (en) Stainless steel electrolytic coating
US3247082A (en) Electrodeposition of a corrosion resistant coating
US1970549A (en) Process of electroplating bronze
US2658266A (en) Laminated coating
US3009238A (en) Protective and decorative nickel coatings
US2832729A (en) Electrodeposition of iron-zinc alloys
US2078868A (en) Electroplating process
US3064337A (en) Composite metal article
US3009236A (en) Protective and decorative coatings containing nickel
US2468825A (en) Plating
US1651278A (en) Process of producing corrosion-resisting coating on iron and steel and products
US2462870A (en) Electrodeposition of copper
US2856334A (en) Chromium plating
US1904732A (en) Alloy plated iron and steel and process of making the same
US2061056A (en) Method of plating and article produced thereby
US3202589A (en) Electroplating
US1614303A (en) Process of producing corrosion-resisting coating on iron and steel and products thereof
US2221562A (en) Electroplating
US3020217A (en) Mirror bright gold alloy electroplating