JPS56111507A - Controlled rolling method for carbon steel or low alloy steel - Google Patents
Controlled rolling method for carbon steel or low alloy steelInfo
- Publication number
- JPS56111507A JPS56111507A JP1423380A JP1423380A JPS56111507A JP S56111507 A JPS56111507 A JP S56111507A JP 1423380 A JP1423380 A JP 1423380A JP 1423380 A JP1423380 A JP 1423380A JP S56111507 A JPS56111507 A JP S56111507A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- pass
- grain size
- work
- low alloy
- 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
- Heat Treatment Of Steel (AREA)
Abstract
PURPOSE: To enable the manufacture of the steel material possessing a specified material characteristic, by exactly presuming the grain size depending on the rolling strain rate, rolling temperatures, etc., for each rolling pass, and by giving arbitrary grain size in response to the request, at carrying out a multipass hot rolling work for carbon steels or low alloy steels.
CONSTITUTION: At subjecting carbon steels or low alloy steels to a multipass hot rolling work, a controlled rolling work is carried out, without necessity of the heat treatment following to the rolling work, making the austenite grain very fine by only the rolling work; hereby, the steel material with excellent strength and toughness is manufactured. For this purpose, the rolling strain rate in the i-th pass is controlled so as to make the number of grain size (Ni) of recrystallized austenite (γ) after the i-th rolling pass, to be a specified value designated by the equation (I). In the equation (I), Ni-1 is for the number of grain size of recrystallized austenite after the i-1th rolling pass, Ti is for the rolling temperature (°C) in the i-th rolling pass, and εi is for the rolling strain rate occurring in the i-th rolling pass.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1423380A JPS56111507A (en) | 1980-02-07 | 1980-02-07 | Controlled rolling method for carbon steel or low alloy steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1423380A JPS56111507A (en) | 1980-02-07 | 1980-02-07 | Controlled rolling method for carbon steel or low alloy steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56111507A true JPS56111507A (en) | 1981-09-03 |
Family
ID=11855350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1423380A Pending JPS56111507A (en) | 1980-02-07 | 1980-02-07 | Controlled rolling method for carbon steel or low alloy steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56111507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247987A (en) * | 2010-05-19 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for producing electrical steel and carbon steel through mixed rolling |
-
1980
- 1980-02-07 JP JP1423380A patent/JPS56111507A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247987A (en) * | 2010-05-19 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for producing electrical steel and carbon steel through mixed rolling |
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