JPS57115962A - Detection for abnormality of cast steel in continuous casting mold - Google Patents
Detection for abnormality of cast steel in continuous casting moldInfo
- Publication number
- JPS57115962A JPS57115962A JP142381A JP142381A JPS57115962A JP S57115962 A JPS57115962 A JP S57115962A JP 142381 A JP142381 A JP 142381A JP 142381 A JP142381 A JP 142381A JP S57115962 A JPS57115962 A JP S57115962A
- Authority
- JP
- Japan
- Prior art keywords
- shell
- abnormality
- temp
- prescribed range
- detection
- 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 detect the abnormality of a solidified shell and to prevent the generation of breakout by comparing the time change rate ΔT/Δt obtained from the measured value of the temp. T in mold walls and the values of a prescribed range.
CONSTITUTION: In the inside walls of a mold, the internal temp. T is measured with the thermocouples buried at 20W700mm below the melt level and at 1W30mm under the surface of the inside wall. The abrupt rise P1 of the temp. T indicates the breakdown of a shell and the abrupt drop P2 indicates the presence of a large-sized inclusion. Hence, the breakdown of the shell is detected when ΔT/Δt exceeds the prescribed range in the direction of + and the large-sized inclusion in the surface part of the shell is detected when the ΔT/Δt exceeds the prescribed range in the direction of -. In either case, if the drawing is continued, the possibility of the generation of breakout is high and therefore the casting is immediately stopped temporarily or decelerated and the drawing is resumed after waiting for the formation of the shell.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP142381A JPS57115962A (en) | 1981-01-08 | 1981-01-08 | Detection for abnormality of cast steel in continuous casting mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP142381A JPS57115962A (en) | 1981-01-08 | 1981-01-08 | Detection for abnormality of cast steel in continuous casting mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57115962A true JPS57115962A (en) | 1982-07-19 |
Family
ID=11501046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP142381A Pending JPS57115962A (en) | 1981-01-08 | 1981-01-08 | Detection for abnormality of cast steel in continuous casting mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57115962A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62192243A (en) * | 1986-02-17 | 1987-08-22 | Nippon Kokan Kk <Nkk> | Detection of casting slab longitudinal cracking in continuous casting |
JPS63115660A (en) * | 1986-10-31 | 1988-05-20 | Sumitomo Metal Ind Ltd | Predicting method for breakout in continuous casting |
US4774998A (en) * | 1985-02-01 | 1988-10-04 | Nippon Steel Corporation | Method and apparatus for preventing cast defects in continuous casting plant |
JPH01143748A (en) * | 1987-11-30 | 1989-06-06 | Kawasaki Steel Corp | Continuous casting method |
JP2014042938A (en) * | 2012-08-29 | 2014-03-13 | Jfe Steel Corp | Breakout prediction method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5666364A (en) * | 1979-10-31 | 1981-06-04 | Nippon Kokan Kk <Nkk> | Continuous casting method |
-
1981
- 1981-01-08 JP JP142381A patent/JPS57115962A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5666364A (en) * | 1979-10-31 | 1981-06-04 | Nippon Kokan Kk <Nkk> | Continuous casting method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4774998A (en) * | 1985-02-01 | 1988-10-04 | Nippon Steel Corporation | Method and apparatus for preventing cast defects in continuous casting plant |
JPS62192243A (en) * | 1986-02-17 | 1987-08-22 | Nippon Kokan Kk <Nkk> | Detection of casting slab longitudinal cracking in continuous casting |
JPS63115660A (en) * | 1986-10-31 | 1988-05-20 | Sumitomo Metal Ind Ltd | Predicting method for breakout in continuous casting |
JPH01143748A (en) * | 1987-11-30 | 1989-06-06 | Kawasaki Steel Corp | Continuous casting method |
JP2014042938A (en) * | 2012-08-29 | 2014-03-13 | Jfe Steel Corp | Breakout prediction method |
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