JPS57115959A - Detection of shell breakdown of cast steel in continuous casting mold - Google Patents
Detection of shell breakdown of cast steel in continuous casting moldInfo
- Publication number
- JPS57115959A JPS57115959A JP142081A JP142081A JPS57115959A JP S57115959 A JPS57115959 A JP S57115959A JP 142081 A JP142081 A JP 142081A JP 142081 A JP142081 A JP 142081A JP S57115959 A JPS57115959 A JP S57115959A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- cast steel
- prescribed
- breakdown
- casting
- 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
- Continuous Casting (AREA)
Abstract
PURPOSE: To stop casting temporarily or to decrease casting speed and to prevent the generation of breakout by detecting the breakdown of a solidified shell from the abrupt rise in the temp. in the prescribed position in the wall of a mold.
CONSTITUTION: Thermocouples are buried in the position by ≥20mm and ≤700mm than the melt level in a mold at ≥1mm and ≤30mm under the surface of the inside wall and the temp. T is measured therewith. The temp. is compared with the reference values obtd. by adding the prescribed values ku1, ku2, etc. corresponding to casting conditions to the time series smoothed value of the steady indicating temps. of the temp. T. The breakdown of the solidified shell of the cast steel is detected when the readings of the T per period of prescribed sampling pulses exceed the reference values by prescribed values. At the point of the time when the breakown is detected, the drawing of the cast steel is stopped or decelerated and the drawing is performed after waiting for the formation of the shell. The detection and decision of abnormality and the indication of casting operations are accomplished respectively by means of a microcomputer.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP142081A JPS57115959A (en) | 1981-01-08 | 1981-01-08 | Detection of shell breakdown of cast steel in continuous casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP142081A JPS57115959A (en) | 1981-01-08 | 1981-01-08 | Detection of shell breakdown of cast steel in continuous casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57115959A true JPS57115959A (en) | 1982-07-19 |
Family
ID=11500965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP142081A Pending JPS57115959A (en) | 1981-01-08 | 1981-01-08 | Detection of shell breakdown of cast steel in continuous casting mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57115959A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011224582A (en) * | 2010-04-15 | 2011-11-10 | Nippon Steel Corp | Method for predicting breakout of continuous casting |
-
1981
- 1981-01-08 JP JP142081A patent/JPS57115959A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011224582A (en) * | 2010-04-15 | 2011-11-10 | Nippon Steel Corp | Method for predicting breakout of continuous casting |
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