US1324835A - Method op coating metals with mercury - Google Patents
Method op coating metals with mercury Download PDFInfo
- Publication number
- US1324835A US1324835A US1324835DA US1324835A US 1324835 A US1324835 A US 1324835A US 1324835D A US1324835D A US 1324835DA US 1324835 A US1324835 A US 1324835A
- Authority
- US
- United States
- Prior art keywords
- mercury
- coated
- tin
- metal
- 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
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title description 52
- 229910052753 mercury Inorganic materials 0.000 title description 48
- 239000002184 metal Substances 0.000 title description 36
- 229910052751 metal Inorganic materials 0.000 title description 36
- 239000011248 coating agent Substances 0.000 title description 16
- 238000000576 coating method Methods 0.000 title description 16
- 150000002739 metals Chemical class 0.000 title description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 44
- 229910052718 tin Inorganic materials 0.000 description 30
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 30
- 229910052742 iron Inorganic materials 0.000 description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 16
- 229910000497 Amalgam Inorganic materials 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 6
- 229910052709 silver Inorganic materials 0.000 description 6
- 239000004332 silver Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 241001000605 Semia Species 0.000 description 2
- -1 iron and steel Chemical class 0.000 description 2
- 230000004301 light adaptation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- 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
- Y10S384/00—Bearings
- Y10S384/90—Cooling or heating
- Y10S384/912—Metallic
Definitions
- object to provide a method of causing mer-' cury to adhere to other metals with which it ordinarily has no afiinity.
- Certain metals such as iron and steel, have little or no surface attraction for mercu and, consequently, it is diflicult to wet the surfaces of such metals with mercury except by plating methods. It is, however, somet1mes very desirable to produce such an intimate contact between mercury and iron or steel, and my invention is directed to methods for effecting this result.
- the iron, steel or other metal to be coated should preferably be slightly heated before the application of the amalgam.
- hydrochloric acid is next poured over the coated metal to perform the double function of cleaning themetal and of setting up a galvanic action which results in the depos1- the metal.
- the hydrochloric acid also dissolves a portion of the tin.
- the excess of tin' and mercury is then wiped off, and the surface of the iron or other metal is found to be thoroughly coated with mercury. This coating contains only a trace of the tin, and
- a suitable acid such as hot, concentrated.
- My invention may be applied to many uses other than those specifically set forth and any metal may be used for making the preliminary amalgam which Will unite. with mercury to form plastic amalgams. It is to be understood that my invention comprehends all such modifications and adaptations als fall-within the scope of the appended c alms. v
- a process of coating metallic and metal-coated surfaces With mercury that the surface to be coated, and removing the comprises coating the surface of a plece of tin and the acid.
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Description
UNITED STATES PATENT OFFICE.
JAMES P. A. MoCOY, 0F WILKINSIBURG, PENNSYLVANIA, ASSIGN'OR 17o WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION or PENNSYLVANIA.
. METHOD OF COATING METALS WITH MERCURY.
No Drawing.
object to provide a method of causing mer-' cury to adhere to other metals with which it ordinarily has no afiinity.
Certain metals, such as iron and steel, have little or no surface attraction for mercu and, consequently, it is diflicult to wet the surfaces of such metals with mercury except by plating methods. It is, however, somet1mes very desirable to produce such an intimate contact between mercury and iron or steel, and my invention is directed to methods for effecting this result.
According to my present invention, I apply the mercury to the surface to be coated in the form of an amalgam'of tin or other metal with which mercury easily amalga-- mates. In one modification of my method, I use sufiicient mercury to give the amalgam a semi-liquid consistency, and this semia liquid amalgam is then rubbed over the surface of the metal to be coated, to which it readily adheres, the mercury in its amalgamated condition not being able to form itself into globules and run olf from the surface of the metal, as is the case when mercury alone is applied to iron or steel. The iron, steel or other metal to be coated should preferably be slightly heated before the application of the amalgam.
hydrochloric acid is next poured over the coated metal to perform the double function of cleaning themetal and of setting up a galvanic action which results in the depos1- the metal. The hydrochloric acid also dissolves a portion of the tin. The excess of tin' and mercury is then wiped off, and the surface of the iron or other metal is found to be thoroughly coated with mercury. This coating contains only a trace of the tin, and
the mercury coating appears not to be Specification of Letters Patent.
A suitable acid, such as hot, concentrated.
Patented Dec. 16, 1919.
Application filed April 12,1915. Serial No. 20,751.
of a piece of tin, thereby forming a surface A amalgam upon the tin. I then heat slightly the coated tin and also the iron or other metal to be cdated and place the amalgamated surface of the tin, wet with a little concentrated hydrochloric acid in contact with the iron. The coated side of the tin is then rubbed upon the iron, conveniently with cotton waste, and the surface of the iron becomes, coated with mercury, presumably through galvanic deposition. The tin is then removed, and all acid removed by washing, leaving a coating of almost pure mercury adhering to the iron.
The foregoing process is particularly use-- ful in the preparation of mercury seals for use in vapor electric apparatus such as mercury-vapor rectifiers, in which it is necessary to wet with mercury either an iron or steel container or a porcelain container, the
,surface of which is coated with a film or silver'or other metal. When porcelain is coated with silver, as is customary in constructing certain types of mercury-vapor apparatus, it is found that the silver coating cannot be amalgamated with mercury by ordinary means. By my method, however, mercury coatings may readily be applied to metal-coated porcelain.
My invention may be applied to many uses other than those specifically set forth and any metal may be used for making the preliminary amalgam which Will unite. with mercury to form plastic amalgams. It is to be understood that my invention comprehends all such modifications and adaptations als fall-within the scope of the appended c alms. v
*1 I claim as my invention: I tion of the mercury upon the clean surface of mates with mercury and transferring the mercury from the said metal to the surface to'be coated.
2. A process of coating metallic and metal-coated surfaces With mercury that the surface to be coated, and removing the comprises coating the surface of a plece of tin and the acid.
tin with mercury and transferring the mer- In testimony whereof I have hereunto 10 I cury from the tin to the surface to be coated vsubscribed my name this 30th day of March by placing the coated surface of the tin, Wet 1915.
with hydrochloric acid, upon the surface to be coated, rubbing together the tin and JAMES P. A. MOCQY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1324835A true US1324835A (en) | 1919-12-16 |
Family
ID=3392284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1324835D Expired - Lifetime US1324835A (en) | Method op coating metals with mercury |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1324835A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2561656A (en) * | 1948-07-28 | 1951-07-24 | Emerson & Cuming Company | Electrolytic production of polyhydric alcohols |
| US2567762A (en) * | 1947-03-07 | 1951-09-11 | Raytheon Mfg Co | Method of coating nickel with mercury |
| US3276062A (en) * | 1965-02-05 | 1966-10-04 | Francis J Palumbo | Mercury-adsorbent retrieving devices |
| US3632410A (en) * | 1968-08-16 | 1972-01-04 | Trw Inc | Preparation of clean metal surfaces for diffusion bonding |
| US4625401A (en) * | 1984-06-25 | 1986-12-02 | Amp Incorporated | Method of gold coating an article |
-
0
- US US1324835D patent/US1324835A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2567762A (en) * | 1947-03-07 | 1951-09-11 | Raytheon Mfg Co | Method of coating nickel with mercury |
| US2561656A (en) * | 1948-07-28 | 1951-07-24 | Emerson & Cuming Company | Electrolytic production of polyhydric alcohols |
| US3276062A (en) * | 1965-02-05 | 1966-10-04 | Francis J Palumbo | Mercury-adsorbent retrieving devices |
| US3632410A (en) * | 1968-08-16 | 1972-01-04 | Trw Inc | Preparation of clean metal surfaces for diffusion bonding |
| US4625401A (en) * | 1984-06-25 | 1986-12-02 | Amp Incorporated | Method of gold coating an article |
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