JPS5524938A - Manufacture of galvanized cold rolled steel plate excellent in deep drawability - Google Patents
Manufacture of galvanized cold rolled steel plate excellent in deep drawabilityInfo
- Publication number
- JPS5524938A JPS5524938A JP9666178A JP9666178A JPS5524938A JP S5524938 A JPS5524938 A JP S5524938A JP 9666178 A JP9666178 A JP 9666178A JP 9666178 A JP9666178 A JP 9666178A JP S5524938 A JPS5524938 A JP S5524938A
- Authority
- JP
- Japan
- Prior art keywords
- cold rolled
- steel plate
- galvanized
- deep drawability
- rolled steel
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/34—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the shape of the material to be treated
- C23C2/36—Elongated material
- C23C2/40—Plates; Strips
- C23C2/405—Plates of specific length
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Abstract
PURPOSE:To manufacture galvanized cold rolled steel plate having excellent deep drawability and excellent zinc-adhesiveness by the procedure in which steel plate is continuously annealed, cooled gradually, hardened with water, coated with a flux for plating, galvanized with molten zinc, and then subjected to an overaging treatment. CONSTITUTION:A steel, containing 0.06% C, 0.30% Mn, 0.015% P, 0.012% S, and 0.0018% N, is cold rolled and then annealed at 600 to 900 deg.C continuously for recrystallization. Then, the steel is gradually quenched from the temperature to 500 to 650 deg.C to form a ferrite-carbide structure, and then rapidly quenched in water for hardening so as to keep the C solid solution formed at high temperatures at ordinary temperature. Then a flux aqueous solution for galvaniztion, containing zinc chloride as the main component and being kept at a temperature between room temperature and 90 deg.C, is coated on the steel, dried with hot air, and then galvanized in a molten zinc plating bath. Lastly, it is held at 250 to 450 deg.C for 10 to 300 sec. for overaging treatment to obtain galvanized cold rolled steel plate which is excellent in deep drawability.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9666178A JPS5524938A (en) | 1978-08-10 | 1978-08-10 | Manufacture of galvanized cold rolled steel plate excellent in deep drawability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9666178A JPS5524938A (en) | 1978-08-10 | 1978-08-10 | Manufacture of galvanized cold rolled steel plate excellent in deep drawability |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5524938A true JPS5524938A (en) | 1980-02-22 |
Family
ID=14170995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9666178A Pending JPS5524938A (en) | 1978-08-10 | 1978-08-10 | Manufacture of galvanized cold rolled steel plate excellent in deep drawability |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5524938A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952402A (en) * | 1984-10-30 | 1990-08-28 | Elan Corporation, P.L.C. | Controlled release powder and process for its preparation |
-
1978
- 1978-08-10 JP JP9666178A patent/JPS5524938A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4952402A (en) * | 1984-10-30 | 1990-08-28 | Elan Corporation, P.L.C. | Controlled release powder and process for its preparation |
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