GB929999A - Heat treatment of metals - Google Patents
Heat treatment of metalsInfo
- Publication number
- GB929999A GB929999A GB69861A GB69861A GB929999A GB 929999 A GB929999 A GB 929999A GB 69861 A GB69861 A GB 69861A GB 69861 A GB69861 A GB 69861A GB 929999 A GB929999 A GB 929999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- weld
- exothermic mixture
- mixture
- rings
- air gap
- 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
-
- 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)
- 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)
- Heat Treatment Of Articles (AREA)
- Ceramic Products (AREA)
Abstract
929,999. Heat treating welds. KEMWELL A.G. Dec. 29, 1961 [Jan. 6, 1961], No. 698/61. Class 72. A method of stress relieving, annealing, or normalizing welds comprises locating a body of exothermic mixture near to but not in contact with the weld, firing the body and allowing it to cool in situ, the body being spaced from the weld by an air gap of such dimension that the heat from the exothermic mixture brings the weld to the desired temperature. As shown, a butt-weld 2 may have two rings 7 positioned one on either side thereof, the rings having recesses supporting sections 8 of exothermic mixture and having an air gap 4 between the sections and the weld, a sleeve 9 then being placed over the mixture. The exothermic mixture may be alumino-thermic containing less than 5% silica and may have a backing layer of heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB69861A GB929999A (en) | 1961-01-06 | 1961-01-06 | Heat treatment of metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB69861A GB929999A (en) | 1961-01-06 | 1961-01-06 | Heat treatment of metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB929999A true GB929999A (en) | 1963-06-26 |
Family
ID=9708972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB69861A Expired GB929999A (en) | 1961-01-06 | 1961-01-06 | Heat treatment of metals |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB929999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864296A (en) * | 2012-10-19 | 2013-01-09 | 哈尔滨工业大学 | Gradient heat treatment device |
-
1961
- 1961-01-06 GB GB69861A patent/GB929999A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864296A (en) * | 2012-10-19 | 2013-01-09 | 哈尔滨工业大学 | Gradient heat treatment device |
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