JPS649582B2 - - Google Patents
Info
- Publication number
- JPS649582B2 JPS649582B2 JP55183415A JP18341580A JPS649582B2 JP S649582 B2 JPS649582 B2 JP S649582B2 JP 55183415 A JP55183415 A JP 55183415A JP 18341580 A JP18341580 A JP 18341580A JP S649582 B2 JPS649582 B2 JP S649582B2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- ultrasonic
- planar
- flaw
- flaws
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims description 53
- 230000002238 attenuated effect Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 20
- 238000009749 continuous casting Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 description 16
- 239000000523 sample Substances 0.000 description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 10
- 229910052717 sulfur Inorganic materials 0.000 description 10
- 239000011593 sulfur Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/11—Analysing solids by measuring attenuation of acoustic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
- G01N29/348—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor with frequency characteristics, e.g. single frequency signals, chirp signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/04—Wave modes and trajectories
- G01N2291/044—Internal reflections (echoes), e.g. on walls or defects
Landscapes
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Continuous Casting (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183415A JPS57106855A (en) | 1980-12-24 | 1980-12-24 | Ultrasonic detection of flaw in ingot during continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55183415A JPS57106855A (en) | 1980-12-24 | 1980-12-24 | Ultrasonic detection of flaw in ingot during continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57106855A JPS57106855A (en) | 1982-07-02 |
| JPS649582B2 true JPS649582B2 (de) | 1989-02-17 |
Family
ID=16135373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55183415A Granted JPS57106855A (en) | 1980-12-24 | 1980-12-24 | Ultrasonic detection of flaw in ingot during continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57106855A (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100610534B1 (ko) | 2001-04-25 | 2006-08-09 | 제이에프이 스틸 가부시키가이샤 | 강의 연속주조주편의 제조방법 및 그 응고상태 계측장치 |
| JP4816130B2 (ja) * | 2006-02-22 | 2011-11-16 | Ｊｆｅスチール株式会社 | 鋼の連続鋳造鋳片の製造方法および鋳片の表層欠陥手入システム。 |
| DE102013217101A1 (de) * | 2012-12-27 | 2014-07-17 | Sms Siemag Ag | Stranggießvorrichtung und Verfahren zur Produktion und/oder Inspektion von metallurgischen Gießprodukten |
| DE102013223083A1 (de) | 2013-11-13 | 2015-05-13 | Sms Siemag Ag | Verfahren und Vorrichtung zur kontaktlosen Überprüfung der Beschaffenheit eines metallurgischen Gießproduktes |
| CN109254081A (zh) * | 2018-10-24 | 2019-01-22 | 贵州省分析测试研究院 | 测定灰铸铁内部石墨属性的方法和装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048699B2 (ja) * | 1977-11-16 | 1985-10-29 | 住友電気工業株式会社 | 連続鋳造材の内部欠陥検出方法 |
-
1980
- 1980-12-24 JP JP55183415A patent/JPS57106855A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57106855A (en) | 1982-07-02 |
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