US1774269A - Plating process - Google Patents
Plating process Download PDFInfo
- Publication number
- US1774269A US1774269A US362134A US36213429A US1774269A US 1774269 A US1774269 A US 1774269A US 362134 A US362134 A US 362134A US 36213429 A US36213429 A US 36213429A US 1774269 A US1774269 A US 1774269A
- Authority
- US
- United States
- Prior art keywords
- steel
- chromium
- iron
- plating
- nickel
- 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
- 238000000034 method Methods 0.000 title description 16
- 238000007747 plating Methods 0.000 title description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 15
- 229910052804 chromium Inorganic materials 0.000 description 15
- 239000011651 chromium Substances 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 15
- 239000002184 metal Substances 0.000 description 15
- 229910052759 nickel Inorganic materials 0.000 description 13
- 238000000576 coating method Methods 0.000 description 10
- 150000002739 metals Chemical class 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 5
- 239000007888 film coating Substances 0.000 description 5
- 238000009501 film coating Methods 0.000 description 5
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 nickel Chemical compound 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002344 surface layer Substances 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
-
- 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
- Y10S205/00—Electrolysis: processes, compositions used therein, and methods of preparing the compositions
- Y10S205/917—Treatment of workpiece between coating steps
Definitions
- This invention relates to plating processes; and it comprises a process of electroplating iron and steel obj eots with other metals wherein the object is madean anode in a solution of 5 chromic acid and a flow of current maintained until a brownish film coating forms and is then plated with a metal other than chromium, such as nickel, the brow'nfilm be- I ing sometimes removed before plating and sometimes not; all as more fully hereinafter set forth and as claimed.
- the suitably cleaned meta article which is usually iron or steel is made an anode-ins solution-of chromic Application filed Kay 10, 1929. Serial 110.38%,184.
- the current conditions should be such as to give free gassing- A temperature of 25 C. and a current density of 1 or 2 amperes p square inch of metal surface serves well. he time required to produce a good brown film varies with the particular steel or iron treated but is usually from 5 to 25 minutes.
- the object can be rinsed and transferred directly to a plating'bath and $0 plated in the usual way.
- the film may firstbe removed either mechanically as by scrubbing the object with the aid of fine pummestone, or chemically by means of dips of concentrated sulfuric ornitric acid& I ordinarily remove the film.
- the present process is particularly applicable in the production of nickel or other metal coatings on objects which are to be sub- .--.equently chromium plated; for instance, steel or iron objects carrying a layer of chromium with an intermediate linking layer of nickel.
- the nickel plated object may be chromium plated in any of the usual ways.
- the present process may be applied in the direct plating of iron and steel with chromium; the iron or steel being made an anode in a chromic acid solution until a brown film forms and then plated with chromium in the usual chromic acid bath.
- the invention as more particularly advantageous in the production of coherent coatings of nickel and metals other than chromium.
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)
- ing And Chemical Polishing (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US362134A US1774269A (en) | 1929-05-10 | 1929-05-10 | Plating process |
| GB13679/30A GB349747A (enrdf_load_stackoverflow) | 1929-05-10 | 1930-05-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US362134A US1774269A (en) | 1929-05-10 | 1929-05-10 | Plating process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1774269A true US1774269A (en) | 1930-08-26 |
Family
ID=23424813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US362134A Expired - Lifetime US1774269A (en) | 1929-05-10 | 1929-05-10 | Plating process |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1774269A (enrdf_load_stackoverflow) |
| GB (1) | GB349747A (enrdf_load_stackoverflow) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429655A (en) * | 1942-11-21 | 1947-10-28 | Standard Telephones Cables Ltd | Selenium element and treatment |
| US2528717A (en) * | 1944-10-11 | 1950-11-07 | Batcheller Clements | Method of electroplating stainless steels and irons |
| US2812297A (en) * | 1953-03-13 | 1957-11-05 | Metal & Thermit Corp | Method of preventing etching by chromic acid chromium plating baths |
| US2855348A (en) * | 1955-08-25 | 1958-10-07 | Tiarco Corp | Chromium plating |
| EP2636770A2 (de) | 2012-03-07 | 2013-09-11 | Umicore Galvanotechnik GmbH | Haftfeste, korrosionsbeständige technische Verchromung |
-
1929
- 1929-05-10 US US362134A patent/US1774269A/en not_active Expired - Lifetime
-
1930
- 1930-05-03 GB GB13679/30A patent/GB349747A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2429655A (en) * | 1942-11-21 | 1947-10-28 | Standard Telephones Cables Ltd | Selenium element and treatment |
| US2528717A (en) * | 1944-10-11 | 1950-11-07 | Batcheller Clements | Method of electroplating stainless steels and irons |
| US2812297A (en) * | 1953-03-13 | 1957-11-05 | Metal & Thermit Corp | Method of preventing etching by chromic acid chromium plating baths |
| US2855348A (en) * | 1955-08-25 | 1958-10-07 | Tiarco Corp | Chromium plating |
| EP2636770A2 (de) | 2012-03-07 | 2013-09-11 | Umicore Galvanotechnik GmbH | Haftfeste, korrosionsbeständige technische Verchromung |
| DE102012004356A1 (de) | 2012-03-07 | 2013-09-12 | Umicore Galvanotechnik Gmbh | Haftfeste, korrosionsbeständige technische Verchromung |
| DE102012004356B4 (de) * | 2012-03-07 | 2013-10-31 | Umicore Galvanotechnik Gmbh | Haftfeste, korrosionsbeständige technische Verchromung und Verfahren zur Herstellung derselben |
Also Published As
| Publication number | Publication date |
|---|---|
| GB349747A (enrdf_load_stackoverflow) | 1931-06-04 |
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