JPS5779017A - Descaling method of hot rolled steel sheet - Google Patents
Descaling method of hot rolled steel sheetInfo
- Publication number
- JPS5779017A JPS5779017A JP12066080A JP12066080A JPS5779017A JP S5779017 A JPS5779017 A JP S5779017A JP 12066080 A JP12066080 A JP 12066080A JP 12066080 A JP12066080 A JP 12066080A JP S5779017 A JPS5779017 A JP S5779017A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- hot rolled
- rolled steel
- descaling
- sheet
- 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
Abstract
PURPOSE: To perform descaling on the surface of steel sheet in a short time, by previously generating cracks in the scale layer on the surface of steel sheet before hot rolled steel sheet is brought into the descaler.
CONSTITUTION: When a hot rolled steel sheet 5 is descaled, the sheet 5 is passed through a rolling mill composed of small diameter rolls 2 and large diameter roils 3 to be subjected to a rolling work under such a condition where the steel sheet 5 is wound and bent altenately to the small diameter roll side 2, and thus, cracks are generated in the scale layer on the surface of the strip 5. The sheet 5 is then passed through a descaler 4 composed of a mechanical descaling equipment 7, such as brush roll, etc. and a chemical descaling equipment 8 which performs descaling work by using an aq. solution of hudrocholoric acid, etc., to remove scales on the surface of the strip 5 in a short time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12066080A JPS5779017A (en) | 1980-09-02 | 1980-09-02 | Descaling method of hot rolled steel sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12066080A JPS5779017A (en) | 1980-09-02 | 1980-09-02 | Descaling method of hot rolled steel sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5779017A true JPS5779017A (en) | 1982-05-18 |
Family
ID=14791733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12066080A Pending JPS5779017A (en) | 1980-09-02 | 1980-09-02 | Descaling method of hot rolled steel sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5779017A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581045A (en) * | 2012-01-30 | 2012-07-18 | 宝山钢铁股份有限公司 | Method for descaling surfaces of metal strips and device |
-
1980
- 1980-09-02 JP JP12066080A patent/JPS5779017A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102581045A (en) * | 2012-01-30 | 2012-07-18 | 宝山钢铁股份有限公司 | Method for descaling surfaces of metal strips and device |
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