JPS5775216A - Descaling method for steel sheet - Google Patents
Descaling method for steel sheetInfo
- Publication number
- JPS5775216A JPS5775216A JP15175780A JP15175780A JPS5775216A JP S5775216 A JPS5775216 A JP S5775216A JP 15175780 A JP15175780 A JP 15175780A JP 15175780 A JP15175780 A JP 15175780A JP S5775216 A JPS5775216 A JP S5775216A
- Authority
- JP
- Japan
- Prior art keywords
- steel sheet
- roll
- scale
- acid solution
- rolling mill
- 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 uniformly descale a steel sheet, and to improve the efficiency of the descaling work, by applying a light reducing cold rolling process to a hot rolled steel sheet, applying an acid solution to the surface of the steel sheet, leaving as it is for a short while, and then, passing the steel sheet through a brushing roll.
CONSTITUTION: A hot rolled steel sheet 2 uncoiled from an uncoiler 1 is subjected to a cold rolling process with a light draft percentage practiced by a rolling mill 3; hereby, fine cracks are generated in the scale covering the surface of the steel sheet. This crack formation may be practiced by a cold processing machine instead of the rolling mill 3, or by a combination of the rolling mill 3 and the cold processing machine. An acid solution is applied to the surface of the steel sheet by an acid applicator 4, the steel is then left as it is for a short while in order to permit the acid solution to penetrate through the cracks into the boundary plane between the base metal and the scale. The unreacted acid remaining on the surface of the steel sheet is removed by a lingua roll 5; the steel sheet is then washed with water, and is passed through a mechanical descaler 8 equipped with a brushing roll 6 made of wire brushes, etc., and a backup roll 7; hereby, the steel sheet is freed from the scale and is coiled by a coiler 9.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15175780A JPS5775216A (en) | 1980-10-28 | 1980-10-28 | Descaling method for steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15175780A JPS5775216A (en) | 1980-10-28 | 1980-10-28 | Descaling method for steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5775216A true JPS5775216A (en) | 1982-05-11 |
Family
ID=15525623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15175780A Pending JPS5775216A (en) | 1980-10-28 | 1980-10-28 | Descaling method for steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5775216A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60130414A (en) * | 1983-12-20 | 1985-07-11 | Mitsubishi Heavy Ind Ltd | Descaling method of steel strip |
| JPS61103617A (en) * | 1984-10-26 | 1986-05-22 | Sumitomo Metal Ind Ltd | Descaling method of steel strip |
| US6210501B1 (en) * | 1995-10-11 | 2001-04-03 | Nisshin Steel Co., Ltd. | Heavy-duty cold-rolling for mechanically descaling a hot-rolled steel strip before pickling |
-
1980
- 1980-10-28 JP JP15175780A patent/JPS5775216A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60130414A (en) * | 1983-12-20 | 1985-07-11 | Mitsubishi Heavy Ind Ltd | Descaling method of steel strip |
| JPH0369604B2 (en) * | 1983-12-20 | 1991-11-01 | Mitsubishi Jukogyo Kk | |
| JPS61103617A (en) * | 1984-10-26 | 1986-05-22 | Sumitomo Metal Ind Ltd | Descaling method of steel strip |
| JPH0242007B2 (en) * | 1984-10-26 | 1990-09-20 | ||
| US6210501B1 (en) * | 1995-10-11 | 2001-04-03 | Nisshin Steel Co., Ltd. | Heavy-duty cold-rolling for mechanically descaling a hot-rolled steel strip before pickling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20000053533A (en) | Method for manufacturing cold rolled metal strip having improved surface roughness | |
| JPS6254194B2 (en) | ||
| JPS5741821A (en) | Descaling method for steel strip | |
| JPS5775216A (en) | Descaling method for steel sheet | |
| JPH0461048B2 (en) | ||
| JPS5747519A (en) | Descaling method for hot rolled steel sheet | |
| JPS5450437A (en) | Method and equipment for descaling hot rolled steel sheet | |
| JP2701636B2 (en) | Descaling method of hot rolled steel strip | |
| JPH08224604A (en) | Manufacture of cold-rolled steel belt and production line | |
| JPS5534688A (en) | Descaling method for hot rolled steel strip | |
| DE19505324A1 (en) | Prodn. of cold-rolled steel strip esp. special steel strip | |
| JPS57109517A (en) | Descaling method | |
| JPS54107853A (en) | Manufacturing apparatus for composite metallic rod | |
| JPS5775217A (en) | Descaling method for steel plate | |
| JPS57202906A (en) | Continuous type producing device for cold rolled steel strip | |
| SU954131A1 (en) | Method of cleaning metallic strip surfaces from scale | |
| JPS5779017A (en) | Descaling method of hot rolled steel sheet | |
| JPS5530363A (en) | Descaling method of hot rolled steel plate | |
| JPS58110116A (en) | Method for continous descaling of steel sheet | |
| JPH0576923A (en) | Method for descaling hot rolled steel strip | |
| JPS5711713A (en) | Descaling method for strip | |
| JPH09108724A (en) | Mechanical descaling method for hot rolled strip | |
| JPS5772719A (en) | Manufacture of cold rolled steel strip | |
| JPS58135715A (en) | Continuous descaling equipment of hot rolled sheet | |
| JPS57165116A (en) | Descaling method for hot rolled strip |