JPS54162631A - Descaling method for secondary scale of hot rolled steel strip - Google Patents
Descaling method for secondary scale of hot rolled steel stripInfo
- Publication number
- JPS54162631A JPS54162631A JP7077178A JP7077178A JPS54162631A JP S54162631 A JPS54162631 A JP S54162631A JP 7077178 A JP7077178 A JP 7077178A JP 7077178 A JP7077178 A JP 7077178A JP S54162631 A JPS54162631 A JP S54162631A
- Authority
- JP
- Japan
- Prior art keywords
- hot rolled
- strip
- steel strip
- water
- scale
- 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
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
PURPOSE: To cheaply obtain a hot rolled low S steel strip with no scale defect by spraying high press. water upon a hot rolled steel strip contg. S≤0.001% at the inlet side of a rolling mill by a specified method in removal of secondary scale of the strip.
CONSTITUTION: In removal of secondary scale of a hot rolled low S steel strip contg. S≤0.001%, this strip is sprayed with water of such a high press. as 90W130 kg/cm2 twice at an interval of 1W3 sec at the inlet side of a rolling mill to pertinently remove the well-adhered scale. Experimental results are as follows: in case the strip is descaled once with water of an elevated press., an insufficient result is produced. The strip is descaled twice at an interval of 1W3 sec under a water press. of 110 kg/cm2, resulting in enhanced exfoliation of scale. Compared to a conventional method this method requires low water press., reduced power cost and no complex temp. control, and a hot rolled low S steel strip of high quality is obtd. cheaply.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7077178A JPS54162631A (en) | 1978-06-14 | 1978-06-14 | Descaling method for secondary scale of hot rolled steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7077178A JPS54162631A (en) | 1978-06-14 | 1978-06-14 | Descaling method for secondary scale of hot rolled steel strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54162631A true JPS54162631A (en) | 1979-12-24 |
Family
ID=13441107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7077178A Pending JPS54162631A (en) | 1978-06-14 | 1978-06-14 | Descaling method for secondary scale of hot rolled steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54162631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193222A (en) * | 1981-05-23 | 1982-11-27 | Kawasaki Steel Corp | Scale removing method of steel plate |
| CN111974801A (en) * | 2020-08-13 | 2020-11-24 | 无锡市城南带钢有限公司 | Method for producing hot-rolled strip steel |
-
1978
- 1978-06-14 JP JP7077178A patent/JPS54162631A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193222A (en) * | 1981-05-23 | 1982-11-27 | Kawasaki Steel Corp | Scale removing method of steel plate |
| JPS6239044B2 (en) * | 1981-05-23 | 1987-08-20 | Kawasaki Steel Co | |
| CN111974801A (en) * | 2020-08-13 | 2020-11-24 | 无锡市城南带钢有限公司 | Method for producing hot-rolled strip steel |
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