GB727675A - Improvements relating to the flash welding of cast iron - Google Patents
Improvements relating to the flash welding of cast ironInfo
- Publication number
- GB727675A GB727675A GB15967/52A GB1596752A GB727675A GB 727675 A GB727675 A GB 727675A GB 15967/52 A GB15967/52 A GB 15967/52A GB 1596752 A GB1596752 A GB 1596752A GB 727675 A GB727675 A GB 727675A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piece
- content
- pieces
- welding
- per
- 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)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
727,675. Welding by pressure. RORVERKEN I. GOTEBORG AKTIEBOLAG. June 25, 1952 [June 25, 1951], No. 15967/52. Class 83 (4). Each oast iron piece of a flash-welded article has a carbon content of 2.7-3.6 per cent with the content of one piece not varying from the content of the other piece by more than 0.5 per cent and with silicon and phosphorus contents not exceeding 1.9 and 0.5 per cent respectively, the phosphorus content of one piece not varying from the content of the other piece by more than 0.2 per cent. The pieces preferably have a structure with finely divided graphite or with more bound carbon than free graphite. The two cast iron pieces A are clamped in copper jaws E connected across the low voltage, e.g. 7-15 volts, secondary of a transformer T. If the melting temperature of one piece is higher than that of the other, the distance a for that piece may be reduced. A power of 0.6 KVA per mm.<SP>2</SP> of welding area is employed for tubular pieces and 0.05 KVA per mm.<SP>2</SP> for solid pieces for areas between 5000- 18000 mm.<SP>2</SP> An upset pressure of 3-9 kg. per mm.<SP>2</SP> of welding area is used and welding is quickly effected to heat only a narrow zone. After welding the pieces may be rapidly cooled to 400-500‹ C. by water cooling the jaws and then allowed to cool in room atmosphere. Cast iron pipes with a flange at one end may be welded to produce a pipe flanged at each end.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE727675X | 1951-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB727675A true GB727675A (en) | 1955-04-06 |
Family
ID=20316169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15967/52A Expired GB727675A (en) | 1951-06-25 | 1952-06-25 | Improvements relating to the flash welding of cast iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB727675A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2880303A (en) * | 1957-06-04 | 1959-03-31 | Manfred V Berg | Process for resistance-welding of cast iron |
| CN103032294A (en) * | 2012-12-31 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor air suction pipe and manufacturing method and application of compressor air suction pipe |
| CN103032640A (en) * | 2012-12-31 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe |
| CN114131163A (en) * | 2021-08-25 | 2022-03-04 | 江阴兴澄特种钢铁有限公司 | Process method for improving quality of mooring cable welded junction |
-
1952
- 1952-06-25 GB GB15967/52A patent/GB727675A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2880303A (en) * | 1957-06-04 | 1959-03-31 | Manfred V Berg | Process for resistance-welding of cast iron |
| CN103032294A (en) * | 2012-12-31 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor air suction pipe and manufacturing method and application of compressor air suction pipe |
| CN103032640A (en) * | 2012-12-31 | 2013-04-10 | 东莞市金瑞五金制品有限公司 | Compressor exhaust pipe and manufacturing method and application of compressor exhaust pipe |
| CN103032294B (en) * | 2012-12-31 | 2016-05-04 | 东莞市金瑞五金制品有限公司 | A kind of compressor suction duct and manufacture method and application |
| CN114131163A (en) * | 2021-08-25 | 2022-03-04 | 江阴兴澄特种钢铁有限公司 | Process method for improving quality of mooring cable welded junction |
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