GB375836A - Improvements in and relating to electrodes for welding and for other processes - Google Patents
Improvements in and relating to electrodes for welding and for other processesInfo
- Publication number
- GB375836A GB375836A GB3?40/31A GB364031A GB375836A GB 375836 A GB375836 A GB 375836A GB 364031 A GB364031 A GB 364031A GB 375836 A GB375836 A GB 375836A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tungsten
- copper
- electrodes
- tungsten carbide
- furnace
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Tungsten carbide powder for use in making electrodes is made either by heating a mixture of powdered tungsten and lamp black in a graphite container to from 1200-1400 DEG C. for a period of from one-half to one hour in a carbon resistance or other high temperature furnace and then rapidly cooling the container in a reducing atmosphere, or by passing carbon monoxide through tungsten powder in an enclosed tube furnace.ALSO:An electrode for spot or butt welding, or for use as a current collector in electric traction systems or as a contact for switches, consists of a body of preformed tungsten carbide saturated with copper. Tungsten carbide powder is mixed with a binder consisting of a metal of the chromium group, such as molybdenum or tungsten, or with copper, and is compressed in dies to form the electrodes, which are then submerged in molten copper, preferably in a hydrogen furnace after first preheating the electrode. Prior to submerging in copper, it may be sintered in a hydrogen or other reducing atmosphere.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US375836XA | 1930-02-04 | 1930-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375836A true GB375836A (en) | 1932-07-04 |
Family
ID=21895120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3?40/31A Expired GB375836A (en) | 1930-02-04 | 1931-02-04 | Improvements in and relating to electrodes for welding and for other processes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB375836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2282557A (en) * | 1993-10-08 | 1995-04-12 | Honda Motor Co Ltd | Resistance welding electrode |
-
1931
- 1931-02-04 GB GB3?40/31A patent/GB375836A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2282557A (en) * | 1993-10-08 | 1995-04-12 | Honda Motor Co Ltd | Resistance welding electrode |
| GB2282557B (en) * | 1993-10-08 | 1996-05-22 | Honda Motor Co Ltd | Resistance welding electrode |
| US5611945A (en) * | 1993-10-08 | 1997-03-18 | Honda Giken Kogyo Kabushiki Kaisha | Resistance welding electrode |
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