GB913225A - Heat treatment of metals - Google Patents
Heat treatment of metalsInfo
- Publication number
- GB913225A GB913225A GB332360A GB332360A GB913225A GB 913225 A GB913225 A GB 913225A GB 332360 A GB332360 A GB 332360A GB 332360 A GB332360 A GB 332360A GB 913225 A GB913225 A GB 913225A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- exothermic mixture
- weld
- mixture
- shaped structure
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A method of annealing and stress-relieving welds comprises applying to the weld, or the metal adjacent the weld a body comprising an exothermic mixture, providing, as backing to the body, a removable, shaped structure of heat-insulating material surrounding the body but leaving an air space between the body and the structure, firing the exothermic mixture, allowing the fired mixture to cool in situ, and removing the structure and residue from the metal. The exothermic mixture may be aluminothermic containing less than 5% silica and, in the case of welding pipe, may be provided in the form of part-cylindrical shapes to form a sleeve round the pipe. The shaped structure may take the form of a lining to a box adapted to be fitted round a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB332360A GB913225A (en) | 1960-01-29 | 1960-01-29 | Heat treatment of metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB332360A GB913225A (en) | 1960-01-29 | 1960-01-29 | Heat treatment of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913225A true GB913225A (en) | 1962-12-19 |
Family
ID=9756151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB332360A Expired GB913225A (en) | 1960-01-29 | 1960-01-29 | Heat treatment of metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB913225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182351A (en) * | 1985-10-30 | 1987-05-13 | Agency Ind Science Techn | Heat treatment |
| EP0249888A2 (en) * | 1986-06-18 | 1987-12-23 | Elektro-Thermit GmbH | Aluminothermic preformed body for heating rails and process of its manufacturing |
-
1960
- 1960-01-29 GB GB332360A patent/GB913225A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2182351A (en) * | 1985-10-30 | 1987-05-13 | Agency Ind Science Techn | Heat treatment |
| GB2182351B (en) * | 1985-10-30 | 1989-09-27 | Agency Ind Science Techn | Methods of heat-treating metal |
| EP0249888A2 (en) * | 1986-06-18 | 1987-12-23 | Elektro-Thermit GmbH | Aluminothermic preformed body for heating rails and process of its manufacturing |
| EP0249888A3 (en) * | 1986-06-18 | 1989-07-12 | Elektro-Thermit Gmbh | Method for heating rails, and preformed heating body therefor |
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