GB1005251A - Heat treatment of welded pipes - Google Patents
Heat treatment of welded pipesInfo
- Publication number
- GB1005251A GB1005251A GB896963A GB896963A GB1005251A GB 1005251 A GB1005251 A GB 1005251A GB 896963 A GB896963 A GB 896963A GB 896963 A GB896963 A GB 896963A GB 1005251 A GB1005251 A GB 1005251A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bend
- welds
- heat treatment
- elbow
- heat
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
Abstract
<PICT:1005251/C6-C7/1> Welds joining iron or steel pipes to an elbow or bend connecting them are stress-relieved by applying a layer of exothermic composition only to the region of the welds, and enclosing the welds and the elbow or bend in a box-like structure of heat-insulating material which is spaced from them by an air gap. As shown in Fig. 1, pipes 1 and 2 are welded at 4 and 5 to bend 3, exothermic composition 6 being applied to the weld area. The whole of the exothermic material and the bend are enclosed in housing 7 built up of heat-insulating slabs, which may consist of asbestos compositions, furnace aggregate, grog or sand. Specification 898,232 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB896963A GB1005251A (en) | 1963-03-06 | 1963-03-06 | Heat treatment of welded pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB896963A GB1005251A (en) | 1963-03-06 | 1963-03-06 | Heat treatment of welded pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1005251A true GB1005251A (en) | 1965-09-22 |
Family
ID=9862796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB896963A Expired GB1005251A (en) | 1963-03-06 | 1963-03-06 | Heat treatment of welded pipes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1005251A (en) |
-
1963
- 1963-03-06 GB GB896963A patent/GB1005251A/en not_active Expired
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