US1312258A - Jesse c - Google Patents
Jesse c Download PDFInfo
- Publication number
- US1312258A US1312258A US1312258DA US1312258A US 1312258 A US1312258 A US 1312258A US 1312258D A US1312258D A US 1312258DA US 1312258 A US1312258 A US 1312258A
- Authority
- US
- United States
- Prior art keywords
- coating
- electrode
- core
- magnesite
- carbon
- 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
- 239000011248 coating agent Substances 0.000 description 28
- 238000000576 coating method Methods 0.000 description 28
- ZLNQQNXFFQJAID-UHFFFAOYSA-L Magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 16
- 235000014380 magnesium carbonate Nutrition 0.000 description 16
- 239000011776 magnesium carbonate Substances 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical compound [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001590 oxidative Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/10—Chemical after-treatment of artificial filaments or the like during manufacture of carbon
- D01F11/14—Chemical after-treatment of artificial filaments or the like during manufacture of carbon with organic compounds, e.g. macromolecular compounds
-
- 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
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2918—Rod, strand, filament or fiber including free carbon or carbide or therewith [not as steel]
- Y10T428/292—In coating or impregnation
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2973—Particular cross section
- Y10T428/2978—Surface characteristic
Definitions
- This invention relates to improvements in electrodes for use in electric furnaces and the like.
- electrodes which usually consist of carbon, waste or burn away quite rapidly at points remote from the active end, thus reducing the efliciency and life of the electrode.
- the carbon body becomes heated to very high temperatures for a considerable distance back from the end, and this heating renders the carbon more or less readily combinable with oxygen of the air or w1th other gases, with the result that the electrode burns away, thus reducing the sectional area and consequently altering the resistance and conductivity of the electrode.
- the main object of my invention is to provide an electrode having on the outer surface thereof a thin coating of non-oxidizing material designed to protect the body of the electrode from comblnation with gases at all parts of the surface not in actual operation.
- a coating of finely ground magnesite is very suitable for plied in the manner described in my ppnding application, Serial No. 99,104, filed ay- 22nd, 1916.
- the electrode is preferably baked, sothat the core and the coating become for all practical purposes intel. llteferring to the drawing, which represents a cross sectional view of the electrode with the coating applied thereto, 11 designates the core or electrode proper of carbon havin thesurface 12 roughened by any suitab e means.
- the coating may be ap-- co-' STATES I PATENT OFFICE.
- this coating forms an impenetrable coating between the electrode and the gases of the furnace.
- a binder consisting of a small proportion of pitch or other carbonaceous bonding material.
- a binder consisting of a small proportion of pitch or other carbonaceous bonding material.
- the latter ma be used'in a suitable mold as a core an the magnesite coating may be pressed into the mold around the core in the usual manner.
- a trowel or other suitable implement may be used and the magnesite in plastic condition may be pasted on to the roughened surface 'of the core, in as even a manner as possible;
- any suitable implement plo ed.
- An electrode comprising a carbon core having a roughened surface, and a coating of magnesite mixed with a carbonaceous binding material bonded or baked on the roughened surface.
- such as a cement gun may be em-
Description
J. C. KING.
ELECTRODE.
APPLICATION FILED 001.9. x912.
Patented Aug. 5, 1919.
mren/ar' Jesse 6'. may 4v To all whom it may concern Be it known that I, JEssE C. KING, a citizen of the United States, and resident of the city of Montreal, in the Province of Quebec and Dominion of Canada, have invented certain new and useful'lmprovements in Electrodes, of .which the following is a full, clear, and exact description.
This invention relates to improvements in electrodes for use in electric furnaces and the like.
It is well known that electrodes, which usually consist of carbon, waste or burn away quite rapidly at points remote from the active end, thus reducing the efliciency and life of the electrode. The carbon body becomes heated to very high temperatures for a considerable distance back from the end, and this heating renders the carbon more or less readily combinable with oxygen of the air or w1th other gases, with the result that the electrode burns away, thus reducing the sectional area and consequently altering the resistance and conductivity of the electrode.
The main object of my invention is to provide an electrode having on the outer surface thereof a thin coating of non-oxidizing material designed to protect the body of the electrode from comblnation with gases at all parts of the surface not in actual operation. I have found that a coating of finely ground magnesite is very suitable for plied in the manner described in my ppnding application, Serial No. 99,104, filed ay- 22nd, 1916. .After the. application of the protective coating, the electrode is preferably baked, sothat the core and the coating become for all practical purposes intel. llteferring to the drawing, which represents a cross sectional view of the electrode with the coating applied thereto, 11 designates the core or electrode proper of carbon havin thesurface 12 roughened by any suitab e means. The coating of magnesite Specification of Letters Patent.
this purpose, and the coating may be ap-- co-' STATES I PATENT OFFICE.
.mssn 0. June, or momma, ounnnc, cmuna.
ELECTRODE.
: Patented Aug. 5, 1919.
- Application filed October 9, 1917. Serial No. 195,576.
to a suitable fineness may be molded, pasted,
pressed or sprayed on to the roughened carbon core, and when suitably. hardened, this coating forms an impenetrable coating between the electrode and the gases of the furnace.
In some cases it may be desirable to use a binder consisting of a small proportion of pitch or other carbonaceous bonding material. When a small quantity of such a binder is used, it holds the coating during the baking process where it becomes thoroughly hardened. It will be understood that either pure magnesite, MgO, may be used, or commercial magnesite, the latter often containing impurities such as iron oxid, lime, etc.
If it is desired to mold the surface coating on to the carbon electrode, the latter ma be used'in a suitable mold as a core an the magnesite coating may be pressed into the mold around the core in the usual manner. If the magnesite coating is to be pasted on to the core, a trowel or other suitable implement may be used and the magnesite in plastic condition may be pasted on to the roughened surface 'of the core, in as even a manner as possible; To spray the coating on to the core, any suitable implement, plo ed.
aving thus described my invention, what I claim is An electrode comprising a carbon core having a roughened surface, and a coating of magnesite mixed with a carbonaceous binding material bonded or baked on the roughened surface.
In witness whereof, I have hereunto set my hand.
JESSE C. KING.
such as a cement gun, may be em-
Publications (1)
Publication Number | Publication Date |
---|---|
US1312258A true US1312258A (en) | 1919-08-05 |
Family
ID=3379755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1312258D Expired - Lifetime US1312258A (en) | Jesse c |
Country Status (1)
Country | Link |
---|---|
US (1) | US1312258A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756166A (en) * | 1951-01-27 | 1956-07-24 | Continental Can Co | Vacuum metallizing and apparatus therefor |
US4107382A (en) * | 1975-12-03 | 1978-08-15 | United States Steel Corporation | Coated pitch prill |
-
0
- US US1312258D patent/US1312258A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756166A (en) * | 1951-01-27 | 1956-07-24 | Continental Can Co | Vacuum metallizing and apparatus therefor |
US4107382A (en) * | 1975-12-03 | 1978-08-15 | United States Steel Corporation | Coated pitch prill |
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