GB1209983A - Improvements in the manufacture of carbide-containing welding rods - Google Patents
Improvements in the manufacture of carbide-containing welding rodsInfo
- Publication number
- GB1209983A GB1209983A GB4490968A GB4490968A GB1209983A GB 1209983 A GB1209983 A GB 1209983A GB 4490968 A GB4490968 A GB 4490968A GB 4490968 A GB4490968 A GB 4490968A GB 1209983 A GB1209983 A GB 1209983A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melt
- carbide
- tungsten carbide
- welding rods
- prepared
- 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)
- Ceramic Products (AREA)
Abstract
1,209,983. Composite casting processes. E. KEMMING. 20 Sept., 1968 [22 Dec., 1967], No. 44909/68. Heading B3F. [Also in Division C7] Welding rods are prepared by stirring a solid particulate carbide into a melt and drawing off the melt into heat resistant vacuum tubes. The melt used contains in wt. per cent. The preferred carbide is tungsten carbide which may be added to comprise up to 40% but, preferably, at least 7% by weight of the mixture based upon the total weight of the mixture. The tungsten carbide used may be made by alloying the elements (W 2 C) or by a sintering process (WC) and preferably contains Mo, Ti, Ta and/or Nb carbides in the form of mixed crystals to increase its stability in the melt. If sintered tungsten carbide is used this should be added to the melt before the chromium. A melt containing 70% wt. Co and 30% wt. Cr (the Cr containing 2À2% wt. C) was prepared and pulverized W 2 C of a grain size from 2 to 5 microns was introduced into the melt while the melt was stirred inductively. The resulting suspension at 1400‹ to 1750‹ C. was drawn off into quartz tubes by a vacuum and allowed to solidify.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671558894 DE1558894C3 (en) | 1967-12-22 | 1967-12-22 | Process for the production of carbide-containing welding rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1209983A true GB1209983A (en) | 1970-10-28 |
Family
ID=5677417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4490968A Expired GB1209983A (en) | 1967-12-22 | 1968-09-20 | Improvements in the manufacture of carbide-containing welding rods |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1588657A (en) |
| GB (1) | GB1209983A (en) |
-
1968
- 1968-09-20 GB GB4490968A patent/GB1209983A/en not_active Expired
- 1968-10-11 FR FR1588657D patent/FR1588657A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1588657A (en) | 1970-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |