GB647797A - Process for heat treating ferrous metals and products obtained therefrom - Google Patents
Process for heat treating ferrous metals and products obtained therefromInfo
- Publication number
- GB647797A GB647797A GB34269/47A GB3426947A GB647797A GB 647797 A GB647797 A GB 647797A GB 34269/47 A GB34269/47 A GB 34269/47A GB 3426947 A GB3426947 A GB 3426947A GB 647797 A GB647797 A GB 647797A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- point
- deformation
- temperature
- products obtained
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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)
- Heat Treatment Of Steel (AREA)
Abstract
647,797. Working at specified temperatures. LEVITSKY, L. Dec. 24, 1947, No. 34269. Convention date, Sept. 37, 1946. Drawings to Specification. [Class 83 (iv)] In a process of hot working, the metal is cooled intensively so as to pass as quickly as possible the A1. point of the iron-carbon diagram, and the deformation is proceeded with immediately thereafter and continued until a temperature higher than the recrystallization point of the metal is reached. The metal is first heated to a relatively high temperature and deformed in the normal way to obtain a blank which is larger than the desired finished dimensions, and then reheated to a temperature above the A3 point of the iron-carbon diagram and preferably below the temperature at which the initial deformation was commenced. The deformation preferably does not exceed 40 per cent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR647797X | 1946-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB647797A true GB647797A (en) | 1950-12-20 |
Family
ID=9002293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34269/47A Expired GB647797A (en) | 1946-09-27 | 1947-12-24 | Process for heat treating ferrous metals and products obtained therefrom |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB647797A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2778756A (en) * | 1953-06-22 | 1957-01-22 | Bredzs Nikolajs | Process for hardening steel |
US3330705A (en) * | 1966-11-17 | 1967-07-11 | Inland Steel Co | Method to improve impact properties of steels |
US3453152A (en) * | 1963-11-12 | 1969-07-01 | Republic Steel Corp | High-strength alloy steel compositions and process of producing high strength steel including hot-cold working |
-
1947
- 1947-12-24 GB GB34269/47A patent/GB647797A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2778756A (en) * | 1953-06-22 | 1957-01-22 | Bredzs Nikolajs | Process for hardening steel |
US3453152A (en) * | 1963-11-12 | 1969-07-01 | Republic Steel Corp | High-strength alloy steel compositions and process of producing high strength steel including hot-cold working |
US3330705A (en) * | 1966-11-17 | 1967-07-11 | Inland Steel Co | Method to improve impact properties of steels |
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