GB688244A - Improvements in and relating to electric welding processes - Google Patents
Improvements in and relating to electric welding processesInfo
- Publication number
- GB688244A GB688244A GB10999/51A GB1099951A GB688244A GB 688244 A GB688244 A GB 688244A GB 10999/51 A GB10999/51 A GB 10999/51A GB 1099951 A GB1099951 A GB 1099951A GB 688244 A GB688244 A GB 688244A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cooling
- weld
- checked
- curve
- temperature
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
688,244. Welding by pressure. ANCIENS ETABLISSEMENTS MALBER. May 10, 1951 [May 15, 1950], No. 10999/51. Class 83 (iv). [Also in Group II] In electrically welding metals, e.g. band saws, cooling of the weld is so regulated that the cooling curve on a time-temperature diagram is close to and beneath the S-curve, i.e. the curve of isothermal transformation. The rapid cooling caused by the water-cooled or other jaws of the welding machine may be checked as required by passing current through the weld or by the action of a hot fluid jet or by both. The fluid may be neutral or reducing, e.g. a flame of combustible gas, to protect the work from oxidation. Fig. 1 shows the cooling curve R for steel with 2 per cent of chromium, the cooling being checked at 330‹ C. until the weld-treated metal has a uniform temperature. For 75 carbon steel cooling is checked at about 300‹ C. In cooling from a welding temperature of, say, 1500‹ C. cooling may also be checked at about 800‹ C. to allow the temperature of the treated metal to become uniform. Cooling from 800‹ C. is then regulated as before. If desired, the weld can be subjected to a subsequent tempering by passing current through it and preferably applying a flame.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR688244X | 1950-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB688244A true GB688244A (en) | 1953-03-04 |
Family
ID=9026608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10999/51A Expired GB688244A (en) | 1950-05-15 | 1951-05-10 | Improvements in and relating to electric welding processes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB688244A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842786A1 (en) * | 1978-09-30 | 1980-04-10 | Usui Kokusai Sangyo Kk | Valve push rod for IC engine - is steel tube welded to case hardened end piece which has flat proximal and curved distal surfaces |
| EP1484129A1 (en) * | 2003-06-03 | 2004-12-08 | Denso Corporation | Resistance welding method and resistance welding apparatus |
| US8350178B2 (en) | 2007-03-23 | 2013-01-08 | National Oilwell Varco Denmark I/S | Method of welding duplex stainless steel strip for the production of an armouring layer of a flexible pipe |
| WO2015144427A1 (en) * | 2014-03-26 | 2015-10-01 | Nv Bekaert Sa | Weld between steel cord ends, method and apparatus to implement such weld |
-
1951
- 1951-05-10 GB GB10999/51A patent/GB688244A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2842786A1 (en) * | 1978-09-30 | 1980-04-10 | Usui Kokusai Sangyo Kk | Valve push rod for IC engine - is steel tube welded to case hardened end piece which has flat proximal and curved distal surfaces |
| EP1484129A1 (en) * | 2003-06-03 | 2004-12-08 | Denso Corporation | Resistance welding method and resistance welding apparatus |
| US8350178B2 (en) | 2007-03-23 | 2013-01-08 | National Oilwell Varco Denmark I/S | Method of welding duplex stainless steel strip for the production of an armouring layer of a flexible pipe |
| WO2015144427A1 (en) * | 2014-03-26 | 2015-10-01 | Nv Bekaert Sa | Weld between steel cord ends, method and apparatus to implement such weld |
| EA033990B1 (en) * | 2014-03-26 | 2019-12-17 | Нв Бекаэрт Са | Weld between steel cord ends, method and apparatus to implement such weld |
| US10537960B2 (en) | 2014-03-26 | 2020-01-21 | Nv Bekaert Sa | Weld between steel cord ends, method and apparatus to implement such weld |
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