JPS5756146A - Method and equipment for measuring thickness of molten liquid layer of injected powder in continuous casting - Google Patents
Method and equipment for measuring thickness of molten liquid layer of injected powder in continuous castingInfo
- Publication number
- JPS5756146A JPS5756146A JP12968680A JP12968680A JPS5756146A JP S5756146 A JPS5756146 A JP S5756146A JP 12968680 A JP12968680 A JP 12968680A JP 12968680 A JP12968680 A JP 12968680A JP S5756146 A JPS5756146 A JP S5756146A
- Authority
- JP
- Japan
- Prior art keywords
- liquid layer
- molten liquid
- molten
- powder
- injected
- 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
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Continuous Casting (AREA)
Abstract
PURPOSE: To measure the thickness of a molten liquid layer of injected powder, by transmitting an ultrasonic wave to the surface of a molten steel through a delaying stick whose lower end is gradually injected into the molten from the upper part of the molten liquid layer of powder, or which is grdually pulled up from the inside of the molten steel to the upper part of the molten liquid layer of powder.
CONSTITUTION: When the lower end 20a of a delaying stick 20 is gradually lowered to injected powder 14 by means of a power cylinder 24, the lower end 20 goes into a molten steel 12 through the injected powder 14d, a layer in sintered condition 14c, and a molten liquid layer 14a. At this time, a reflected echo by the upper surface of the molten steel 12 appears in a cathode-ray tube 28a in an ultrasonic wave signal processing device 28. Conversely, when the lower end 20a is pulled up from the inside of the molten steel 12 and passes through the molten liquid layer 14a, the reflected echo disappears. Therefore, the interval between the appearance and disappearance of the reflected echo corresponds to the thickness of the molten liquid layer 14a of injected powder, and the thickness is obtained by reading the received diagram.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12968680A JPS5756146A (en) | 1980-09-18 | 1980-09-18 | Method and equipment for measuring thickness of molten liquid layer of injected powder in continuous casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12968680A JPS5756146A (en) | 1980-09-18 | 1980-09-18 | Method and equipment for measuring thickness of molten liquid layer of injected powder in continuous casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5756146A true JPS5756146A (en) | 1982-04-03 |
Family
ID=15015669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12968680A Pending JPS5756146A (en) | 1980-09-18 | 1980-09-18 | Method and equipment for measuring thickness of molten liquid layer of injected powder in continuous casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5756146A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5105874A (en) * | 1989-09-13 | 1992-04-21 | Institut De Recherches De La Siderurgie Francaise (Irsid) | Process for continuously determining the thickness of the liquid slag on the surface of a bath of molten metal in a metallurgical container |
CN105973178A (en) * | 2016-05-26 | 2016-09-28 | 重庆钢铁(集团)有限责任公司 | Detection and processing method for steel tube before leaving factory |
CN108637193A (en) * | 2018-08-20 | 2018-10-12 | 武汉科技大学 | A kind of crystallizer protecting residue slag layer thickness automatic measurement and regulating device and method |
-
1980
- 1980-09-18 JP JP12968680A patent/JPS5756146A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5105874A (en) * | 1989-09-13 | 1992-04-21 | Institut De Recherches De La Siderurgie Francaise (Irsid) | Process for continuously determining the thickness of the liquid slag on the surface of a bath of molten metal in a metallurgical container |
CN105973178A (en) * | 2016-05-26 | 2016-09-28 | 重庆钢铁(集团)有限责任公司 | Detection and processing method for steel tube before leaving factory |
CN105973178B (en) * | 2016-05-26 | 2018-10-16 | 重庆钢铁(集团)有限责任公司 | A kind of preceding detection process method of steel pipe manufacture |
CN108637193A (en) * | 2018-08-20 | 2018-10-12 | 武汉科技大学 | A kind of crystallizer protecting residue slag layer thickness automatic measurement and regulating device and method |
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