US955446A - Metal-plating. - Google Patents
Metal-plating. Download PDFInfo
- Publication number
- US955446A US955446A US47234309A US1909472343A US955446A US 955446 A US955446 A US 955446A US 47234309 A US47234309 A US 47234309A US 1909472343 A US1909472343 A US 1909472343A US 955446 A US955446 A US 955446A
- Authority
- US
- United States
- Prior art keywords
- metal
- coating
- plating
- oxidizable
- iron
- 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
- 238000007747 plating Methods 0.000 title description 2
- 239000002184 metal Substances 0.000 description 30
- 229910052751 metal Inorganic materials 0.000 description 30
- 239000011248 coating agent Substances 0.000 description 18
- 238000000576 coating method Methods 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 229910052742 iron Inorganic materials 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000635 Spelter Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- QNDQILQPPKQROV-UHFFFAOYSA-N dizinc Chemical compound [Zn]=[Zn] QNDQILQPPKQROV-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
Definitions
- This invention relates to the art of coating surfaces of one metal with another metal of a different character and more especially to the art of coating surfaces of an oxidizable metal or alloy with a substantially non-oxidizable metal which is electro-positive relative thereto.
- the object of my invention is to provide an improved and inexpensive method of coating bodies of oxidizable metal with another metal electro-positive thereto.
- ile my invention is applicable generally to oxidizable metals, I have chosen iron as an example of such oxidizable metal and will accordingly direct the following detailed description to my method of coating that metal with a particular metal.
- a molten bath is provided as follows: About 100 parts of a salt of zinc, pref- .vided metallic zinc or o erably ahalogen salt such aszinc chlorid, is heated until it melts (about 262 C.) and this is continued until the mass comes to a quiet fusion.
- the iron body Upon removal from the water the iron body will be found to be very evenly coated with non-crystalline zinc which cannot be chipped or sealed from the surface of the iron body.
- the method is especially applicable to bolts, nuts, etc.
- T e method of coating an oxidizable metal surface with another metal electropositive relative thereto consisting of immersing the metal surface in a molten hath made by heating a quantity of a salt of the coating metal and mixing therewith smaller quantities of finely divided coating metal and salammoniac.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Coating With Molten Metal (AREA)
Description
I Schenectady,
of New York, have invented certain new and, .useful Improvements in require the metal part to UNITED STATES .PATEN T OFFICE.
LELAND M. WILLEY, OF SCHENECTADY, NEW YORK, ASSIGNOR T0 GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.
METAL-PLATING.
No Drawing.
Patented Apr. 19, 1910.
To all whom it may concern:
Be it known that I, LELAND M. WILLEY, a citizen of the United States, residing at county of Schenectady, State Metal-Plating, of which the following is a specification.
This invention relates to the art of coating surfaces of one metal with another metal of a different character and more especially to the art of coating surfaces of an oxidizable metal or alloy with a substantially non-oxidizable metal which is electro-positive relative thereto.
Heretofore the coating of surfaces of one metal with another metal has ordinarily been accomplished either by electro-deposition or by dipping the metal part to be coated in a molten bath of the coating metal. The former method besides being expensive of operation produces more or less unsatisfactory results due to porosity of the coating, and the latter method is ordinarily objectionable on account of the lack of uniformity of the thickness of the coating and on account of the tendency of the coating metal to assume a crystalline appearance. Moreover, both of these methods are objectionable in that they be coated to be carefully freed from all surface oxidations before application of the coating.
The object of my invention is to provide an improved and inexpensive method of coating bodies of oxidizable metal with another metal electro-positive thereto.
ile my invention is applicable generally to oxidizable metals, I have chosen iron as an example of such oxidizable metal and will accordingly direct the following detailed description to my method of coating that metal with a particular metal.
In case the iron body to be treated has become oxidized to such an extent that a scale is formed, the latter is removed by any of the well known methods, but in the practice of my method an ordinary film of oxid on the surface of .the body tends to accelerate rather than to impede the formation of a. perfect union between surfaces of the iron and the coating metal and accordingly is not removed. A molten bath is provided as follows: About 100 parts of a salt of zinc, pref- .vided metallic zinc or o erably ahalogen salt such aszinc chlorid, is heated until it melts (about 262 C.) and this is continued until the mass comes to a quiet fusion. 10 to arts of finely dizinc dust, which latter is a by-product of spelter mills consisting of fine particles of pure zinc and zinc oxid, is' added in small quantities during constant stirring. In order to increase the fluidity of the bath 3 to 10 parts of ammonium chlorid is now added in small quantities. When the bath thus made up has come to a quiet fusion, the metal body to be coated is immersed therein and left for a period of time depending upon the thickness of the metal body and the thickness of coatin desired. For ordinary bolts and nuts haIf an hour is sufficient. The iron body is then removed from mersed in water or other suitable liquid to remove any salt or scale that may adhere to the coated article.
Upon removal from the water the iron body will be found to be very evenly coated with non-crystalline zinc which cannot be chipped or sealed from the surface of the iron body. By reason of the perfect union between the two metals and the ability to control the thickness of the coating, it becomes possible to treat parts adapted to have threaded engagement without interference with their ready assemblage, and accordingly the method is especially applicable to bolts, nuts, etc.
l/Vhat I claim as new and desire to secure by Letters Patent of the United States, is,
1. The method of-coating an oxidizable metal surface With another metal electropositive thereto consisting of immersing the metal surface in a molten bath made by heating a quantity of a salt of the coating metal and mixing therewith a less quantity of the coatin metal.
2. T e method of coating an oxidizable metal surface with another metal electropositive relative thereto consisting of immersing the metal surface in a molten hath made by heating a quantity of a salt of the coating metal and mixing therewith smaller quantities of finely divided coating metal and salammoniac.
3. The method of coating iron surfaces the molten bath and im-' eee, ee
In Witness whereof, I have hereunto set my hand this 12th day of January, 1909.
LELAND. M. VVILLEY.
Witnesses:
BENJAMEN B. HULL, HELEN @RFORD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47234309A US955446A (en) | 1909-01-14 | 1909-01-14 | Metal-plating. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US47234309A US955446A (en) | 1909-01-14 | 1909-01-14 | Metal-plating. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US955446A true US955446A (en) | 1910-04-19 |
Family
ID=3023850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US47234309A Expired - Lifetime US955446A (en) | 1909-01-14 | 1909-01-14 | Metal-plating. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US955446A (en) |
-
1909
- 1909-01-14 US US47234309A patent/US955446A/en not_active Expired - Lifetime
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