JPS5585620A - Manufacture of cold rolled steel sheet excellent in temporary rust preventive property - Google Patents
Manufacture of cold rolled steel sheet excellent in temporary rust preventive propertyInfo
- Publication number
- JPS5585620A JPS5585620A JP16033478A JP16033478A JPS5585620A JP S5585620 A JPS5585620 A JP S5585620A JP 16033478 A JP16033478 A JP 16033478A JP 16033478 A JP16033478 A JP 16033478A JP S5585620 A JPS5585620 A JP S5585620A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- cold rolled
- rolled steel
- rust preventive
- preventive property
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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 Sheet Steel (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
PURPOSE:To improve temporary rust preventive property of a cold rolled steel sheet, by, in final annealing of the cold rolled steel sheet, grinding mechanically the steel sheet surface previously, then by applying a treating soln. contg. Bi, Ti etc. to the steel sheet, and by annealing it. CONSTITUTION:Before recrystallization annealing of a cold rolled steel sheet 1, the steel sheet 1 is ground on both sides by brushing rolls 2, it is then applied with an aq. soln. or suspension of bismuth nitrate and other cpd. of Bi, Ti by immersion method, by spraying through a spray header 3, or by a coating roll 6, so that steel sheet may be coated with 0.1-200mg Bi or Ti/mm<2>. Having been ground, the steel sheet surface is adhered satisfactorily with the above-described treating soln. The treated steel sheet is recrystallization annealed by passing through a continuous annealing furnace. Hereby cold rolled steel sheet excellent in temporary rust preventive property is manufactured by the formation of very thin coating film on the surface thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16033478A JPS5585620A (en) | 1978-12-22 | 1978-12-22 | Manufacture of cold rolled steel sheet excellent in temporary rust preventive property |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16033478A JPS5585620A (en) | 1978-12-22 | 1978-12-22 | Manufacture of cold rolled steel sheet excellent in temporary rust preventive property |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5585620A true JPS5585620A (en) | 1980-06-27 |
Family
ID=15712717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16033478A Pending JPS5585620A (en) | 1978-12-22 | 1978-12-22 | Manufacture of cold rolled steel sheet excellent in temporary rust preventive property |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5585620A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57153109A (en) * | 1981-02-19 | 1982-09-21 | Stal Laval Turbin Ab | Combustion equipment for polluting solid fuel |
-
1978
- 1978-12-22 JP JP16033478A patent/JPS5585620A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57153109A (en) * | 1981-02-19 | 1982-09-21 | Stal Laval Turbin Ab | Combustion equipment for polluting solid fuel |
JPH0238852B2 (en) * | 1981-02-19 | 1990-09-03 | Asea Stal Ab |
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