GB956830A - Improvements in or relating to welding electrodes - Google Patents
Improvements in or relating to welding electrodesInfo
- Publication number
- GB956830A GB956830A GB3413362A GB3413362A GB956830A GB 956830 A GB956830 A GB 956830A GB 3413362 A GB3413362 A GB 3413362A GB 3413362 A GB3413362 A GB 3413362A GB 956830 A GB956830 A GB 956830A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten
- tungsten carbide
- powder
- carbon
- granules
- 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
Links
- 238000003466 welding Methods 0.000 title 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 abstract 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- 239000000843 powder Substances 0.000 abstract 4
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- 239000008187 granular material Substances 0.000 abstract 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 3
- 229910052721 tungsten Inorganic materials 0.000 abstract 3
- 239000010937 tungsten Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910017052 cobalt Inorganic materials 0.000 abstract 2
- 239000010941 cobalt Substances 0.000 abstract 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000012188 paraffin wax Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 239000004071 soot Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/32—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C
- B23K35/327—Selection of soldering or welding materials proper with the principal constituent melting at more than 1550 degrees C comprising refractory compounds, e.g. carbides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Tungsten carbide filler material in granular form for use in tubular electrodes is made by sintering a powder comprising one or more of tungsten carbide, tungsten and carbon and containing 4.3-4.8% carbon. Tungsten carbide powder is formed into granules, e.g. by rolling with a lubricant, pressing, centrifugation or by utilizing surface tension action, and sintered by heating to 1600-1700 DEG C. Alternatively the powder may be a mixture of tungsten with tungsten carbide or carbon, e.g. soot. 0.2-0.3% of metal from the 8th group of the Periodic System, e.g. cobalt, may be added. In a particular example 6450 gm. tungsten carbide, 2100 gm. tungsten and 20 gm. cobalt in powder form are mixed together and rolled with 5% paraffin wax to form granules. The granules are sintered by heating in a graphite tray at 1650 DEG C. for 45 minutes in an inert gas, e.g. hydrogen or nitrogen, or in vacuum.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE947261 | 1961-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB956830A true GB956830A (en) | 1964-04-29 |
Family
ID=20276759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3413362A Expired GB956830A (en) | 1961-09-22 | 1962-09-06 | Improvements in or relating to welding electrodes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB956830A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9869132B2 (en) | 2015-02-04 | 2018-01-16 | National Oilwell Varco, L.P. | Wellsite hardfacing with particle distribution and method of using same |
| US9909395B2 (en) | 2015-09-21 | 2018-03-06 | National Oilwell DHT, L.P. | Wellsite hardfacing with distributed hard phase and method of using same |
-
1962
- 1962-09-06 GB GB3413362A patent/GB956830A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9869132B2 (en) | 2015-02-04 | 2018-01-16 | National Oilwell Varco, L.P. | Wellsite hardfacing with particle distribution and method of using same |
| US9909395B2 (en) | 2015-09-21 | 2018-03-06 | National Oilwell DHT, L.P. | Wellsite hardfacing with distributed hard phase and method of using same |
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