US514896A - Process of coating metals with oxids - Google Patents
Process of coating metals with oxids Download PDFInfo
- Publication number
- US514896A US514896A US514896DA US514896A US 514896 A US514896 A US 514896A US 514896D A US514896D A US 514896DA US 514896 A US514896 A US 514896A
- Authority
- US
- United States
- Prior art keywords
- lead
- bath
- solution
- oxids
- coating metals
- 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
- 229910052751 metal Inorganic materials 0.000 title description 10
- 239000002184 metal Substances 0.000 title description 10
- 239000011248 coating agent Substances 0.000 title description 8
- 238000000576 coating method Methods 0.000 title description 8
- 150000002739 metals Chemical class 0.000 title description 8
- 238000000034 method Methods 0.000 title description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 229910002651 NO3 Inorganic materials 0.000 description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N lead(II) oxide Inorganic materials [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
- C25D9/06—Electrolytic coating other than with metals with inorganic materials by anodic processes
Definitions
- My invention relates to those processes of coating metals with oxides which consists in making the article to be coated the anode of abath containing the material for the coating desired in solution, and is designed primarily as an improvement upon those processes whichare employedto give the metal a coating of peroxide of lead.
- My invention is designed for use with copper and its alloys, or with iron, steel or'other metals.
- My invention consists in immersing the cathode in a solution of caustic soda or its equivalent as hereinafter described, separated from the bath proper by the porous diaphragm.
- oxidizing agents employed previous to my invention foroxidizing thehydrogen set free during the action of blackening or browning the metal with the oxide of lead have some of them been liable to the objection that if the process be carriedon too rapidly metallic lead would be deposited on the cathode and its surrounding diaphragm or porous cup.
- This deposit of metallic lead on the cathode not only prevents the oxidation of the hydrogen, but it would so impoverish the solution by the withdrawal of lead that the bath would become Very sluggish in .its action and it would become necessary to suspend operations for the time being until a new diaphragm could be substituted, and the solution be replenished.
- My present invention consists in the substitution for the dioxide of manganese of a It hasprior to myinvention been proposed to employ a bath for the anode composed of nitrate of lead and caustic soda or potash.
- My present invention consists in the addition to a bath containing the nitrate of lead in solution, of an oxide of lead or its equivalent (a hydrate).
- the oxide or its equivalent I add in quantities to produce a turbidity in 7 the solution.
- the finely powdered oxide may be added and while the operation is going on thorough motion'should be imparted'to the solution.
- the articleto be coated after being carefully cleansed by any Well known method employed in processes ofelectrical deposition, in order to remove all oxides and fatty material, is immersedin the bath and made the positive pole of a circuit of the dynamo electric malcd chine or other source of energy, and electric current is passed through the bath until the article has obtained the required deposit.
- the results produced by this bath are much superior to those obtained with baths heretofore proposed.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
Description
Fries.
CRAIG RITCHIE ARNOLD, OF SHARON HILL, PENNSYLVANIA.
PROCESS OF COATING METALS WITH OXIDS.
SPECIFICATION forming part of Letters Patent No. 514,896, dated February 20, 1894.
Application filed April 29, 1893- Serlal No. 472,105, (No specimens.)
T on whom it may concern.-
Be it known that I, CRAIG RITCHIE AR- NOLD, a citizen of the United States, and a resident of Sharon Hill, in the county of Delawareand State of Pennsylvania, have invented a certain new and useful Process of Coating Metals with Oxids, of which the following is a specification. Y
My invention relates to those processes of coating metals with oxides which consists in making the article to be coated the anode of abath containing the material for the coating desired in solution, and is designed primarily as an improvement upon those processes whichare employedto give the metal a coating of peroxide of lead.
My invention is designed for use with copper and its alloys, or with iron, steel or'other metals." I
It has heretofore been proposed to coat metals with a bi-oxide of lead by suspending the article in a bath containing nitrate of lead in solution and with or without other materials,and ma I a be coated tpe lmdeof the bath, and it has also been proposed; islprocesstosuspe ndapalhode i nltlqhamber congining a sii'i'fibled'epplarizmg ar enal and chambeijontainingjtlifeibath proper by a? porous m nraw."
My invention consists in immersing the cathode in a solution of caustic soda or its equivalent as hereinafter described, separated from the bath proper by the porous diaphragm.
The oxidizing agents employed previous to my invention foroxidizing thehydrogen set free during the action of blackening or browning the metal with the oxide of lead have some of them been liable to the objection that if the process be carriedon too rapidly metallic lead would be deposited on the cathode and its surrounding diaphragm or porous cup. This deposit of metallic lead on the cathode not only prevents the oxidation of the hydrogen, but it would so impoverish the solution by the withdrawal of lead that the bath would become Very sluggish in .its action and it would become necessary to suspend operations for the time being until a new diaphragm could be substituted, and the solution be replenished.
It has heretofore been proposed to use dioxide of manganese as the oxidizing substance in connection with the bath containing nitrate of lead in solution for the anode.
My present invention consists in the substitution for the dioxide of manganese of a It hasprior to myinvention been proposed to employ a bath for the anode composed of nitrate of lead and caustic soda or potash.
My present invention consists in the addition to a bath containing the nitrate of lead in solution, of an oxide of lead or its equivalent (a hydrate). The oxide or its equivalent I add in quantities to produce a turbidity in 7 the solution. During plating, the finely powdered oxide may be added and while the operation is going on thorough motion'should be imparted'to the solution.
To make a bath of the nitrate of lead, I pro ceed as follows:In order to prepare twentytwo gallons of plating bath, dissolve twentytwo .pounds of nitrate of lead in seven gallons of hot water. This solution is poured into eleven gallons of caustic soda of the specific gravity of 1.20, after having warmed it to 70 Centigrade. This solution is kept at this temperature for say, thirty minutes and mixed well; and after cooling down, sufficient Water is added to make up the required amount of bath. During plating, finely powdered litharge is added to the bath and during the operation thorough agitation should be imparted to the solution. The article to be plated is suspended from the anode pole. The articleto be coated, after being carefully cleansed by any Well known method employed in processes ofelectrical deposition, in order to remove all oxides and fatty material, is immersedin the bath and made the positive pole of a circuit of the dynamo electric malcd chine or other source of energy, and electric current is passed through the bath until the article has obtained the required deposit. The results produced by this bath are much superior to those obtained with baths heretofore proposed.
What I claim as my invention is- 1. The herein described improvement in coating metals by making the article to be coated the anode of a bath containing nitrate of lead in solution to which oxide of lead or its equivalent, as described, is added, as and for the purpose described.
2. The herein described improvement in coating metals by making the article to be coated the anode of a bath composed of nitrate of lead and caustic sodaor potash to CRAIG RITCHIE ARNOLD.
Wit n esses:
J. LENTZ GARRETT, MARY A. MARTIN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US514896A true US514896A (en) | 1894-02-20 |
Family
ID=2583704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US514896D Expired - Lifetime US514896A (en) | Process of coating metals with oxids |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US514896A (en) |
-
0
- US US514896D patent/US514896A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2293810A (en) | Electroplating stainless steel | |
| US2654701A (en) | Plating aluminum | |
| US3489539A (en) | Manganiding | |
| GB659073A (en) | Improvements in or relating to the production of plated powder-metal articles | |
| CN102242382A (en) | Production method of silver-plated conductor for producing highly sophisticated products for aviation and aerospace | |
| US2805192A (en) | Plated refractory metals | |
| US3573008A (en) | Composite metal article of copper material with a coat of nickel and tin | |
| US514896A (en) | Process of coating metals with oxids | |
| US4082908A (en) | Gold plating process and product produced thereby | |
| US3489537A (en) | Aluminiding | |
| US570554A (en) | Eduard jordis | |
| US3505181A (en) | Treatment of titanium surfaces | |
| US2440837A (en) | Metal cleaning composition | |
| US2353026A (en) | Metal-cleaning process and composition | |
| US2801960A (en) | Gold plating process | |
| US2489523A (en) | Electrodeposition of tin or lead-tin alloys | |
| US2456370A (en) | Process for producing electrodeposited nickel strip containing boron | |
| US242338A (en) | Constant laval | |
| US3265540A (en) | Production of arg hardenable tantalum-based alloys | |
| US1905105A (en) | Electrodeposition of tin-gold alloys | |
| US2088429A (en) | Bright zinc | |
| US536152A (en) | Method of plating aluminium | |
| CN105332016A (en) | Plating solution for plating copper on carbon nano tube | |
| US490841A (en) | Georg wegner | |
| US2790733A (en) | Deposition of cadmium by chemical reduction |