JPS5671511A - Rolling material quality control method in hot continuous rolling mill - Google Patents
Rolling material quality control method in hot continuous rolling millInfo
- Publication number
- JPS5671511A JPS5671511A JP14606179A JP14606179A JPS5671511A JP S5671511 A JPS5671511 A JP S5671511A JP 14606179 A JP14606179 A JP 14606179A JP 14606179 A JP14606179 A JP 14606179A JP S5671511 A JPS5671511 A JP S5671511A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- steel
- hot rolling
- strain speed
- final stage
- 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.)
- Granted
Links
Landscapes
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE: To enable a steel material of required characteristics to be obtained in the case of conforming to specific rolling and thermal hysteresis conditions in a steel without containing any special elements, by forecasting the structure after rolling from the final rolling conditions by a specific experimental formula and controlling the strain speed, etc. of the final stage rolling based on the results thereof.
CONSTITUTION: A steel material of desired characteristics is obtained by subjecting a steel which is substantially in an austenite state right after the completion of hot rolling to one or more hot rolling at which the draft becomes ≥60% in total, for a time within 10sec, calculating the strain speed ε(SeC-1) of the rolling of the final stage in said hot rolling in a state when the steel is at ≥0.2sec after the hot rolling and at ≥800°C, as well as the mean temp. T(°K) of the rolled material right after the rolling, from heating temp. etc. or obtaining these from actual measurements, forecasting the recrystallization grain size Nγ after the hot rolling from said strain speed ε and rolled material mean temp. T(°K), and controlling one or both of the strain speed and rolled material mean temp. in the final stage rolling based on the results thereof.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54146061A JPS6027727B2 (en) | 1979-11-13 | 1979-11-13 | Control method for rolling material properties in continuous hot rolling mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54146061A JPS6027727B2 (en) | 1979-11-13 | 1979-11-13 | Control method for rolling material properties in continuous hot rolling mills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5671511A true JPS5671511A (en) | 1981-06-15 |
| JPS6027727B2 JPS6027727B2 (en) | 1985-07-01 |
Family
ID=15399189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54146061A Expired JPS6027727B2 (en) | 1979-11-13 | 1979-11-13 | Control method for rolling material properties in continuous hot rolling mills |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027727B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006523143A (en) * | 2003-03-28 | 2006-10-12 | ターター スチール リミテッド | Online property prediction system and method for hot rolled coils in hot strip mills |
| JP2016215237A (en) * | 2015-05-20 | 2016-12-22 | 株式会社日立製作所 | Hot rolling finish mill outlet side temperature controller and control method thereof |
| US9795755B2 (en) | 2012-07-11 | 2017-10-24 | Koninklijke Philips N.V. | Patient interface |
-
1979
- 1979-11-13 JP JP54146061A patent/JPS6027727B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006523143A (en) * | 2003-03-28 | 2006-10-12 | ターター スチール リミテッド | Online property prediction system and method for hot rolled coils in hot strip mills |
| US9795755B2 (en) | 2012-07-11 | 2017-10-24 | Koninklijke Philips N.V. | Patient interface |
| JP2016215237A (en) * | 2015-05-20 | 2016-12-22 | 株式会社日立製作所 | Hot rolling finish mill outlet side temperature controller and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6027727B2 (en) | 1985-07-01 |
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