JPS5514866A - Heat treating method for joining steel sheet of soft steel and thermal refining high tensile steel - Google Patents
Heat treating method for joining steel sheet of soft steel and thermal refining high tensile steelInfo
- Publication number
- JPS5514866A JPS5514866A JP8749578A JP8749578A JPS5514866A JP S5514866 A JPS5514866 A JP S5514866A JP 8749578 A JP8749578 A JP 8749578A JP 8749578 A JP8749578 A JP 8749578A JP S5514866 A JPS5514866 A JP S5514866A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- high tensile
- thermal refining
- refining high
- soft
- 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.)
- Pending
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)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To prevent the production of strain at hardening time, by cooling rapidly after heating at the temperature between Ac3 point of soft iron and Ac3 point of thermal refining high tensile steel, at the time of hardening joining steel sheet of soft steel and thermal refining high tensile steel. CONSTITUTION:Clad steel sheet is formed by soft steel contining 0.05% of C and thermal refining high tensile steel containing 0.12% of C and the above formed sheet is hardened. On this occasion, the above sheet is heated at the middle temperature of 897 deg.C of Ac3 transformation point of soft iron and 837 deg.C of Ac3 transformation point of thermal refining high tensile steel and is tempered at 620 deg.C after carrying out water hardening. By the above method, deformation on the basis of transformation expansion at the time of transforming from austenite to ferrite, is prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8749578A JPS5514866A (en) | 1978-07-17 | 1978-07-17 | Heat treating method for joining steel sheet of soft steel and thermal refining high tensile steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8749578A JPS5514866A (en) | 1978-07-17 | 1978-07-17 | Heat treating method for joining steel sheet of soft steel and thermal refining high tensile steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5514866A true JPS5514866A (en) | 1980-02-01 |
Family
ID=13916536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8749578A Pending JPS5514866A (en) | 1978-07-17 | 1978-07-17 | Heat treating method for joining steel sheet of soft steel and thermal refining high tensile steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5514866A (en) |
-
1978
- 1978-07-17 JP JP8749578A patent/JPS5514866A/en active Pending
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