US1417896A - Electrodeposition of metals upon iron and alloys of iron - Google Patents
Electrodeposition of metals upon iron and alloys of iron Download PDFInfo
- Publication number
- US1417896A US1417896A US437943A US43794321A US1417896A US 1417896 A US1417896 A US 1417896A US 437943 A US437943 A US 437943A US 43794321 A US43794321 A US 43794321A US 1417896 A US1417896 A US 1417896A
- Authority
- US
- United States
- Prior art keywords
- iron
- electrodeposition
- metals
- copper
- alloys
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 52
- 229910052742 iron Inorganic materials 0.000 title description 26
- 239000002184 metal Substances 0.000 title description 12
- 229910052751 metal Inorganic materials 0.000 title description 12
- 229910000640 Fe alloy Inorganic materials 0.000 title description 10
- 238000004070 electrodeposition Methods 0.000 title description 9
- 150000002739 metals Chemical group 0.000 title description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
- C25F1/02—Pickling; Descaling
- C25F1/04—Pickling; Descaling in solution
- C25F1/06—Iron or steel
Definitions
- This invention relates to the electrodeposition of nickel, iron, cobalt and other metals upon the surface of iron or alloys of iron, such as-ordinary or special steels, and more especially to the method of cleaning the iron so that a firm and coherent coating of the deposited metal can be obtained direct upon the iron surface.
- the iron or iron alloy on which the metal is to be deposited is subjected to an electrolytic cleansing treatment in an acid, bath con taining a salt of copper.
- the electrolytic treatment is such that the iron is left clean without an adhering film of copper, to which metal the iron is electro-positive.
- a suitable bath for this purpose consists of a solution of, say, 10 to 12 per cent sulphuric acid in water with about 5 to 10 per cent of copper sulphate.
- the temperature employed may be the normal atmospheric temperature and should not be allowed to exceed 120 F.
- the body to be cleansed is suspended in the bath or vat, which may be lead lined or provided with a lead electrode and current of suitable density is supplied.
- iron is preferably first made the cathode
- hen iron is placed in' an electrolyte containing a copper salt, since the iron is electro-positive to the copper, the tendency is for copper to deposit, with or without the action of current in a direction which assists the deposit, that is, with the iron as cathode.
- S1nce tlie iron is covered with an oxide coating the copper forms a loose deposit associated with the oxide, and' when the current is passed through the bath with the iron as the anode, the copper is immediately removed, taking with it any oxides or other impurities with which the surface of the iron is coated.
- Deposition may be effected by any of the customary solutions into which the cleansed iron body is placed after removal from the cleansing bath. It is found that iron, nickel and cobalt can be deposited directly upon such a cleansed surface, without the interposition'of a copper or other primary coating. Otherwise the depositing process may be of the usual type. The process enables parts of machinery which have been worn to be thickened, at any required point, by a deposited iron layer which becomes homogeneous with the original metal and so allows the worn parts to be utilized again. The deposited layer may be case hardened if desired.
- a process for the cleansing of'the surface of ironor iron alloy prior to the electrodeposition of metals upon such surface which consists in subjecting the said surface to an electrolytic cleansing treatment by immersing it in an acid bath containing a .salt of copper and passing current through the acid bath and the body to be cleansed the said body formingan anode.
- a process forthe cleansing of the surface of iron or iron alloy prior to the electrodeposition of metals upon such surface which consists in placing the iron or iron alloy in an acid bath containing copper sulphate passing current through the bath with the body to be cleansed employed as a 4.
- a process for the electrodeposition of metals upon an iron or iron alloy surface, WhlCh consists in sub ecting the said surface to an electrolytic cleansing treatment in an acid bath containing copper sulphate freelng the surface from the copper solution and thereupon depositing directly upon the said cleansed surface, the required metallic 25 coating from an electroplating solution.
Description
-50 rent required is usually at a pressure of,8
UNITED s'rA'resj ROBERT JOSEPH FLETCHER, OF LONDON,
PATENT OFFICE.
ENGLAND, ASSIGNOR TO THE FLETCHER ELECTED SALVAGE COMPANY, LIMITED, 01 LONDON, ENGLAND, A BRITISH COM- PANY. 1
ELECTRODEPOSITION OF METALS UPON IRON AND ALLOYS OF IRON.
No Drawing.
To all whom it may concern:
Be it known that 1, ROBERT JosEPH FLETCHER, a subject. of the Kin Britain, residing at 3 Penarth treet, Old Kent Road, in thecounty of London, England, have invented certain new and useful Improvements in or Relating to the Electrodeposition of Metals Upon Iron and Alloys of Iron, of which the following is a specification.
This invention relates to the electrodeposition of nickel, iron, cobalt and other metals upon the surface of iron or alloys of iron, such as-ordinary or special steels, and more especially to the method of cleaning the iron so that a firm and coherent coating of the deposited metal can be obtained direct upon the iron surface.
According to this invention the iron or iron alloy on which the metal is to be deposited is subjected to an electrolytic cleansing treatment in an acid, bath con taining a salt of copper. The electrolytic treatment is such that the iron is left clean without an adhering film of copper, to which metal the iron is electro-positive. A suitable bath for this purpose consists of a solution of, say, 10 to 12 per cent sulphuric acid in water with about 5 to 10 per cent of copper sulphate. The temperature employed may be the normal atmospheric temperature and should not be allowed to exceed 120 F. The body to be cleansed is suspended in the bath or vat, which may be lead lined or provided with a lead electrode and current of suitable density is supplied. The
iron is preferably first made the cathode,
and after a'suitable time, depending on the.
electrolytic. treatment with the iron as cathode may be dispensed with. The cur- Specification of Letters Patent.
of- Great Patented May 30, 1922.
.Application filed January 17, 1921. Serial No. 437,943.
to 20 volts with a density of from 150 to 500 ampleres per square foot of iron surface.
hen iron is placed in' an electrolyte containing a copper salt, since the iron is electro-positive to the copper, the tendency is for copper to deposit, with or without the action of current in a direction which assists the deposit, that is, with the iron as cathode. S1nce tlie iron is covered with an oxide coating the copper forms a loose deposit associated with the oxide, and' when the current is passed through the bath with the iron as the anode, the copper is immediately removed, taking with it any oxides or other impurities with which the surface of the iron is coated.
The surface of the work is freed from grease before it is introduced into the bath operation is finished the work is chemically clean and is left untouched until the electro deposition is effected. Deposition may be effected by any of the customary solutions into which the cleansed iron body is placed after removal from the cleansing bath. It is found that iron, nickel and cobalt can be deposited directly upon such a cleansed surface, without the interposition'of a copper or other primary coating. Otherwise the depositing process may be of the usual type. The process enables parts of machinery which have been worn to be thickened, at any required point, by a deposited iron layer which becomes homogeneous with the original metal and so allows the worn parts to be utilized again. The deposited layer may be case hardened if desired.
What I claim and desire to secure by Letters Patent of the United States is 1. A process for the cleansing of'the surface of ironor iron alloy prior to the electrodeposition of metals upon such surface, which consists in subjecting the said surface to an electrolytic cleansing treatment by immersing it in an acid bath containing a .salt of copper and passing current through the acid bath and the body to be cleansed the said body formingan anode.
2. A process forthe cleansing of the surface of iron or ironalloy prior to the electrodeposition of metals upon such surface,
. anode. V
to an electrolytic cleansing treatment by immersing it in a solution of sulphuric acid containing copper sulphate and passing h current through the acid bath and the body to be cleansed the said body forming an 3. A process forthe cleansing of the surface of iron or iron alloy prior to the electrodeposition of metals upon such surface, which consists in placing the iron or iron alloy in an acid bath containing copper sulphate passing current through the bath with the body to be cleansed employed as a 4. A process for the electrodeposition of metals upon an iron or iron alloy surface, WhlCh consists in sub ecting the said surface to an electrolytic cleansing treatment in an acid bath containing copper sulphate freelng the surface from the copper solution and thereupon depositing directly upon the said cleansed surface, the required metallic 25 coating from an electroplating solution.
ROBERT JOSEPH FLETCHER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2710/20A GB162391A (en) | 1920-01-28 | 1920-01-28 | Improvements in or relating to the electro deposition of metals upon iron and alloys of iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1417896A true US1417896A (en) | 1922-05-30 |
Family
ID=33462618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US437943A Expired - Lifetime US1417896A (en) | 1920-01-28 | 1921-01-17 | Electrodeposition of metals upon iron and alloys of iron |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1417896A (en) |
| DE (1) | DE347219C (en) |
| FR (1) | FR529936A (en) |
| GB (1) | GB162391A (en) |
| NL (1) | NL8437C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2442195A (en) * | 1945-07-31 | 1948-05-25 | Gen Electric | Cleaning and electroplating process |
| US2457060A (en) * | 1945-10-25 | 1948-12-21 | Int Nickel Co | Method for bonding a nickel electrodeposit to a nickel surface |
| US3620934A (en) * | 1966-08-08 | 1971-11-16 | Fer Blanc Sarl Centre Rech Du | Method of electrolytic tinning sheet steel |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE741666C (en) * | 1942-01-12 | 1943-11-15 | Messerschmitt Boelkow Blohm | Process for the electrolytic removal of contaminants deposited on valve cones, in particular exhaust valves, of high-quality internal combustion engines |
| DE939659C (en) * | 1952-06-28 | 1956-03-01 | Richard Dr Springer | Process for the electrolytic descaling of metal surfaces in alkaline solutions |
-
1920
- 1920-01-28 GB GB2710/20A patent/GB162391A/en not_active Expired
-
1921
- 1921-01-17 US US437943A patent/US1417896A/en not_active Expired - Lifetime
- 1921-01-19 FR FR529936D patent/FR529936A/en not_active Expired
- 1921-01-23 DE DE1921347219D patent/DE347219C/en not_active Expired
- 1921-02-15 NL NL18048A patent/NL8437C/xx active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2442195A (en) * | 1945-07-31 | 1948-05-25 | Gen Electric | Cleaning and electroplating process |
| US2457060A (en) * | 1945-10-25 | 1948-12-21 | Int Nickel Co | Method for bonding a nickel electrodeposit to a nickel surface |
| US2457061A (en) * | 1945-10-25 | 1948-12-21 | Int Nickel Co | Method for bonding a nickel electrodeposit to a nickel surface |
| US2457059A (en) * | 1945-10-25 | 1948-12-21 | Int Nickel Co | Method for bonding a nickel electrodeposit to a nickel surface |
| US3620934A (en) * | 1966-08-08 | 1971-11-16 | Fer Blanc Sarl Centre Rech Du | Method of electrolytic tinning sheet steel |
Also Published As
| Publication number | Publication date |
|---|---|
| FR529936A (en) | 1921-12-09 |
| GB162391A (en) | 1921-04-28 |
| NL8437C (en) | 1923-02-15 |
| DE347219C (en) | 1922-01-17 |
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