GB638557A - Improvements in or relating to welding rods for arc welding and the like - Google Patents
Improvements in or relating to welding rods for arc welding and the likeInfo
- Publication number
- GB638557A GB638557A GB12678/47A GB1267847A GB638557A GB 638557 A GB638557 A GB 638557A GB 12678/47 A GB12678/47 A GB 12678/47A GB 1267847 A GB1267847 A GB 1267847A GB 638557 A GB638557 A GB 638557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- parts
- cobalt
- molybdenum
- ferro
- 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
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3046—Co as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A welding electrode or rod contains iron, cobalt, and at least one of molybdenum, niobium, tantalum or tungsten such that the deposit is a precipitation hardenable substantially carbon-free ternary or higher alloy that can be worked by cutting, grinding, &c., immediately following deposition, and subsequently hardened by annealing. At least part of one or more of the metals is in the flux coating if any, preferably as a metal powder, but it may be in combined state. The weld metal is used for tool tipping, roll repairs, seaming, &c., and is rapidly cooled from 1200 DEG to 1300 DEG C before annealing at 500 DEG to 700 DEG C by furnace or carbon arc. The proportions are varied to produce martensitic, ferritic, semi-ferritic, or austenitic structures and examples contain 3 to 60 per cent cobalt and 4 to 40 per cent tungsten; 3 to 65 per cent cobalt and 4 to 35 per cent molybdenum; 3 to 75 per cent cobalt and 4 to 25 per cent tantalum or niobium. A coating on a mild steel wire comprises ferro molybdenum (35/65) 20 parts, cobalt 25 parts, ferro-manganese 2 parts, ferro silicon 6 parts, flux and slag-forming substances 47 parts, by weight, plus a binder, e.g., water-glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE638557X | 1946-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB638557A true GB638557A (en) | 1950-06-14 |
Family
ID=20313717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12678/47A Expired GB638557A (en) | 1946-05-10 | 1947-05-09 | Improvements in or relating to welding rods for arc welding and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB638557A (en) |
-
1947
- 1947-05-09 GB GB12678/47A patent/GB638557A/en not_active Expired
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