EP0988908A1 - Verfahren zur Lokalisierung von Elementkonzentrationen in einem Gussstrang und Anordnung zur Durchführung des Verfahrens - Google Patents
Verfahren zur Lokalisierung von Elementkonzentrationen in einem Gussstrang und Anordnung zur Durchführung des Verfahrens Download PDFInfo
- Publication number
- EP0988908A1 EP0988908A1 EP99118339A EP99118339A EP0988908A1 EP 0988908 A1 EP0988908 A1 EP 0988908A1 EP 99118339 A EP99118339 A EP 99118339A EP 99118339 A EP99118339 A EP 99118339A EP 0988908 A1 EP0988908 A1 EP 0988908A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal
- cast strand
- computer
- strip
- test specimen
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
Definitions
- the invention relates on the one hand to a method for localizing element concentrations in the edge areas of a horizontally manufactured cast strand alloyed non-ferrous metals.
- the invention is directed to one Device for performing the method.
- the thickness of the removed surface layer has so far been based on empirical values determined that were sufficient for the rule. Now, however, are forming in horizontal casting under certain conditions tin concentrations that protrude beyond the normal dimension into the cast strand at certain points. root cause this is mostly due to wanted or unwanted changes in the cooling conditions. However, these anomalies can only be identified after several work steps rolled and polished surfaces in the form of linear light yellow stripes. These batches were then usually scrapped.
- the invention is based on the object Method for localizing element concentrations in the marginal areas of a horizontally manufactured cast strand from alloyed non-ferrous metals as well as a Show device for performing the method in which both wanted and unwanted changes in cooling conditions as well regardless an optional local homogenization cooling element concentrations can be reliably recognized and eliminated.
- the cast strand at the beginning and end of a coil to be wound a length section removed as a test specimen and from this specimen in the transverse direction a surface layer with a certain thickness removed like a strip.
- the surface layer can be removed by milling, Grinding or another type of mechanical processing. It is important here that no lubricants are added during acceptance become. The acceptance takes place over the entire length of the test specimen and thus the width of the cast strand.
- the method according to the invention therefore makes it possible to determine exactly how much Material must be removed from the cast strand so that further processing a flawless starting material can be provided.
- This device has a sensor that determines the position of the test specimen Metal acquisition unit and a spectral analysis head, which is relative to the test specimen relocatable and under the influence of a metal acceptance and analysis control unit are provided, on the one hand via a programmable logic controller and on the other hand is coupled to a computer via a spectrometer.
- the Computer has a screen and a printer.
- the test specimen removed from the cast strand is fixed locally.
- the sensor feels then the surface of the test specimen and the metal removal unit, in particular a milling head with milling cutter, such that one of these is uniformly thick Surface layer can be removed.
- the extension in Transverse direction determined.
- the sensor is under the influence of a Metal acceptance and analysis control unit with a programmable logic controller Control is coupled.
- the control is in turn connected to a computer connected via the control and the metal acceptance and analysis control unit positioned the sensor step by step and also all safety chains and functions of the device checked.
- a predetermined layer thickness is achieved with the metal removal unit removed like a strip, for example 0.6 mm, so that now a bare surface is present.
- the spectral analysis head which is now in linear sequence of points determines the metal composition, the spectrometer also transmits the concentration to the computer.
- the computer collects all positioning and analysis data and also the analysis data corrected with reference to the calibration values, the analysis and Positioning data transferred into a diagram, which is then online on the screen of the computer is displayed. It can be clearly seen here where, if necessary anomaly is exceeded. Does the calculator set one such an anomaly, he immediately determines that the metal take-off unit is another Layer from the length section, but this time in a smaller one Thickness, for example with 0.2 mm. This can take place over the entire extension Transverse direction of the longitudinal section take place or only where the inflated in advance Concentration was determined.
- a spectral analysis is carried out again and determined whether the increased concentration is still present or whether the element concentrations are within the limit values. Lie they within the limits, the anomaly is well defined, so then the values for machining the cast strand are also fixed. Is the anomaly still present, another thin layer of e.g. 0.2 mm removed and the specimen was then examined spectrally analytically.
- the metal acceptance and analysis control unit with the spectrometer is connected via optical fibers.
- 1 is an arrangement for localizing element concentrations rectangular in the edge areas of a horizontally manufactured cast strand Cross section made of a copper-tin alloy (CuSn4).
- the arrangement 1 comprises a sample table 2, on which a short length section of the cast strand in Shape of a test specimen 3 can be fixed locally.
- a short length section of the cast strand in Shape of a test specimen 3 can be fixed locally.
- the length L of the cast strand Specimen 3 dimensioned significantly smaller than the width B, which is also the Corresponds to the width of the cast strand.
- the test specimen is 3 also fixed locally in the longitudinal direction of the sample table 2.
- a metal removal unit 4 in the form of a milling head with milling cutter 5 relocatable.
- the milling cutter 5 can be moved downwards out of the metal removal unit 4.
- the metal removal unit 4 can be displaced transversely to the sample table 2.
- the metal removal unit 4 is shown in FIG Way under the influence of an integrated in the sample table 2 metal and Analysis control unit 6.
- the metal take-off unit 4 is assigned a sensor 7, via which the position of the Test specimen 3 on the sample table 2 and its width B in the transverse direction is determined.
- metal take-off unit 4 under the influence of the metal take-off and analysis control unit 6 stands, it is also via a line 8 with a programmable logic controller Controller 9 coupled, which in turn via a line 10 is coupled to a computer 11 with screen 12 and printer 13.
- a spectral analysis head 14 can be displaced. This one too is under the influence of the metal acceptance and analysis control unit 6, the in turn via optical fiber 15 with a spectrometer 16 and this in turn is coupled to the computer 11 via a line 17.
- the controller 9 and the control unit are used first 6, the sensor 7 is shifted over the test specimen 3, the position and scans its width B.
- the controller 9 uses the values reported to the controller then the metal removal unit 4 in such a way that the milling cutter 5 is removed from the test specimen 3 in Width B is a surface layer with a depth of 0.6 mm in strips milled off (see also Figure 2).
- Spectral analysis head 14 moved in the longitudinal direction of the milled strip 18, wherein a punctiform spectral analysis of the metal composition of the Test specimen 3 in a linear succession 19 (focal spots of the spectrometer) is carried out.
- the spectrometer receives 16 instructions from Computer 11, which alloy is to be analyzed and when it has to drop.
- the Spectrometer 16 determines the composition by emission spectrometry and reports the concentration to the computer 11.
- the arrows PF indicate the flow of information.
- the computer 11 collects the positioning data and analysis data and corrects them possibly referring to the calibration values. It then transfers the analysis and positioning data to a diagram which is oneline according to FIG screen 12 is shown.
- the width B of the test specimen is on the abscissa A 3 in millimeters and on the ordinate O the tin concentration in percent shown.
- the permissible tin concentration is between about 3.5 and 4.5 Percent.
- the spectrometer 16 has a milling depth of approx. 0.6 mm from position 375 to 425 mm above the upper limit OG tin concentration 20 going beyond determined, transmitted to the computer 11 and shown in Figure 3.
- the metal removal unit 4 is again in the longitudinal direction of the strip 18 moves, with a further 0.2 mm material removed.
- the spectral analysis head 14 is then moved in the longitudinal direction of the strip 18 and determined the metal composition.
- this analysis also shows with a milling depth of 0.8 mm in total, an increased tin concentration 20 in the range between 375 and 425 mm. However, it can also be seen that the tin concentration 20 has become narrower at the base.
- the metal take-off unit then becomes 4 moved again in the longitudinal direction of the strip 18 and one another layer of 0.2 mm removed.
- the spectral analysis head 14 is again in the longitudinal direction of the Strip 18 moves and the current metal composition determined.
- the total milling depth now is approximately 1 mm still an increased tin concentration between the positions 375 to 425 mm 20 available.
- FIG. 5 shows that the tin concentration 20 at the Base has become significantly narrower.
- the metal removal unit 4 is again in the longitudinal direction of the strip 18 shifted and with the cutter 5 another layer with a thickness of 0.2 mm decreased.
- the spectral analysis head 14 is then moved in the longitudinal direction of the strip 18 and determined the metal composition.
Abstract
Description
- Figur 1
- im Schema eine Vorrichtung zur Lokalisierung von Elementkonzentrationen in einem Gußstrang;
- Figur 2
- in vergrößerter Darstellung eine Draufsicht auf einen einen Probekörper bildenden Längenabschnitt eines Gußstrangs und
- Figuren 3 bis 6
- verschiedene Diagramme einer Seigerungs-Analyse.
- 1 -
- Anordnung
- 2 -
- Probentisch
- 3 -
- Probekörper
- 4 -
- Metallabnahmeeinheit
- 5 -
- Fräser
- 6 -
- Metallabnahme- u. Analysenregeleinheit
- 7 -
- Sensor
- 8 -
- Leitung
- 9 -
- speicherprogrammierbare Steuerung
- 10 -
- Leitung
- 11 -
- Rechner
- 12 -
- Bildschirm
- 13 -
- Drucker
- 14 -
- Spektralanalysenkopf
- 15 -
- Lichtwellenleiter
- 16 -
- Spektrometer
- 17 -
- Leitung
- 18 -
- Streifen
- 19 -
- Aufeinanderfolge
- 20 -
- Zinnkonzentration
- A -
- Abszisse
- O -
- Ordinate
- OG -
- oberer Grenzwert
- PF -
- Pfeil
- UG -
- unterer Grenzwert
Claims (3)
- Verfahren zur Lokalisierung von Elementkonzentrationen (20) in den Randbereichen eines horizontal gefertigten Gußstrangs aus legierten Nichteisenmetallen, bei welchem ein Längenabschnitt (3) aus einem Gußstrang entfernt und von diesem einen Probekörper (3) bildenden Längenabschnitt mindestens einmal in Querrichtung eine Oberflächenschicht mit bestimmter Dicke streifenartig abgenommen, dann in Längsrichtung des Streifens (18) eine punktförmige spektralanalytische Prüfung der Metallzusammensetzung in linienförmiger Aufeinanderfolge (19) durchgeführt und danach mit Hilfe eines Rechners (11) die Elementkonzentrationen (20) zahlenmäßig und/oder grafisch dargestellt werden.
- Anordnung zur Durchführung des Verfahrens nach Anspruch 1, welche einen die Lage des Probekörpers (3) ermittelnden Sensor (7), eine Metallabnahmeeinheit (4) und einen Spektralanalysenkopf (14) aufweist, die relativ zum Probekörper (3) verlagerbar und unter den Einfluß einer Metallabnahme- und Analysenregeleinheit (6) gestellt sind, welche einerseits über eine speicherprogrammierbare Steuerung (9) und andererseits über ein Spektrometer (16) mit einem Rechner (11) gekoppelt ist.
- Anordnung nach Anspruch 2, bei welcher die Metallabnahme- und Analysenregeleinheit (6) mit dem Spektrometer (16) über Lichtwellenleiter (15) verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843290A DE19843290A1 (de) | 1998-09-22 | 1998-09-22 | Verfahren zur Lokalisierung von Elementkonzentrationen in einem Gußstrang und Vorrichtung des Verfahrens |
DE19843290 | 1998-09-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0988908A1 true EP0988908A1 (de) | 2000-03-29 |
EP0988908B1 EP0988908B1 (de) | 2004-04-07 |
Family
ID=7881740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99118339A Expired - Lifetime EP0988908B1 (de) | 1998-09-22 | 1999-09-16 | Verfahren zur Lokalisierung von Elementkonzentrationen in einem Gussstrang und Anordnung zur Durchführung des Verfahrens |
Country Status (13)
Country | Link |
---|---|
US (1) | US6411379B1 (de) |
EP (1) | EP0988908B1 (de) |
KR (1) | KR100681803B1 (de) |
CN (1) | CN1191899C (de) |
AT (1) | ATE263645T1 (de) |
DE (2) | DE19843290A1 (de) |
DK (1) | DK0988908T3 (de) |
ES (1) | ES2218920T3 (de) |
HK (1) | HK1025279A1 (de) |
HU (1) | HU223998B1 (de) |
PL (1) | PL190825B1 (de) |
PT (1) | PT988908E (de) |
TW (1) | TW424020B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7393367B2 (en) | 2005-05-12 | 2008-07-01 | Henkel Kommanditgesellschaft Auf Aktien | Agent for dyeing keratin-based fibers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102747216B (zh) * | 2011-04-20 | 2013-10-30 | 宝山钢铁股份有限公司 | 一种控制加热炉内钢坯间隙的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972055A (ja) * | 1982-10-18 | 1984-04-23 | Mitsubishi Electric Corp | 金属材料品質検査法 |
JPS59159067A (ja) * | 1983-03-02 | 1984-09-08 | Mitsubishi Electric Corp | リン青銅の品質検査法 |
JPS6141953A (ja) * | 1984-08-06 | 1986-02-28 | Mitsubishi Electric Corp | リン青銅の鋳塊品質検出査装置 |
DE3803194A1 (de) * | 1987-02-10 | 1988-08-18 | Mitsubishi Electric Corp | Verfahren zum kontinuierlichen herstellen eines duennwandigen plattenartigen strangs aus phosphorbronze |
EP0499117B1 (de) * | 1991-02-09 | 1995-08-09 | KM Europa Metal Aktiengesellschaft | Verfahren zum kontinuierlichen Stranggiessen von Kupferlegierungen |
EP0794422A2 (de) * | 1996-03-06 | 1997-09-10 | Avesta Sheffield Aktiebolag | Verfahren zum Kontrollieren eines Produktes und Robot zur Durchführung des Verfahrens |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4692875A (en) * | 1984-06-22 | 1987-09-08 | The United States Of America As Represented By The Secretary Of The Interior | Metal alloy identifier |
JPH0688114B2 (ja) * | 1984-07-17 | 1994-11-09 | 新日本製鐵株式会社 | 連鋳片に発生する中心偏析の最大成分量の測定方法 |
US4783471A (en) * | 1985-07-02 | 1988-11-08 | Merrell Dow Pharmaceuticals Inc. | N-aralkyl piperidine methanol derivatives and the uses thereof |
JP2678797B2 (ja) * | 1989-10-13 | 1997-11-17 | 日本軽金属株式会社 | 発光分光分析用標準試料 |
-
1998
- 1998-09-22 DE DE19843290A patent/DE19843290A1/de not_active Withdrawn
-
1999
- 1999-09-08 CN CNB991186281A patent/CN1191899C/zh not_active Expired - Fee Related
- 1999-09-16 DK DK99118339T patent/DK0988908T3/da active
- 1999-09-16 DE DE59909095T patent/DE59909095D1/de not_active Expired - Lifetime
- 1999-09-16 PT PT99118339T patent/PT988908E/pt unknown
- 1999-09-16 EP EP99118339A patent/EP0988908B1/de not_active Expired - Lifetime
- 1999-09-16 ES ES99118339T patent/ES2218920T3/es not_active Expired - Lifetime
- 1999-09-16 AT AT99118339T patent/ATE263645T1/de active
- 1999-09-18 TW TW088116155A patent/TW424020B/zh not_active IP Right Cessation
- 1999-09-21 KR KR1019990040627A patent/KR100681803B1/ko not_active IP Right Cessation
- 1999-09-21 HU HU9903204A patent/HU223998B1/hu not_active IP Right Cessation
- 1999-09-22 US US09/404,989 patent/US6411379B1/en not_active Expired - Lifetime
- 1999-09-22 PL PL335540A patent/PL190825B1/pl unknown
-
2000
- 2000-07-25 HK HK00104586A patent/HK1025279A1/xx not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972055A (ja) * | 1982-10-18 | 1984-04-23 | Mitsubishi Electric Corp | 金属材料品質検査法 |
JPS59159067A (ja) * | 1983-03-02 | 1984-09-08 | Mitsubishi Electric Corp | リン青銅の品質検査法 |
JPS6141953A (ja) * | 1984-08-06 | 1986-02-28 | Mitsubishi Electric Corp | リン青銅の鋳塊品質検出査装置 |
DE3803194A1 (de) * | 1987-02-10 | 1988-08-18 | Mitsubishi Electric Corp | Verfahren zum kontinuierlichen herstellen eines duennwandigen plattenartigen strangs aus phosphorbronze |
EP0499117B1 (de) * | 1991-02-09 | 1995-08-09 | KM Europa Metal Aktiengesellschaft | Verfahren zum kontinuierlichen Stranggiessen von Kupferlegierungen |
EP0794422A2 (de) * | 1996-03-06 | 1997-09-10 | Avesta Sheffield Aktiebolag | Verfahren zum Kontrollieren eines Produktes und Robot zur Durchführung des Verfahrens |
Non-Patent Citations (3)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 008, no. 179 (P - 295) 17 August 1984 (1984-08-17) * |
PATENT ABSTRACTS OF JAPAN vol. 009, no. 009 (P - 327) 16 January 1985 (1985-01-16) * |
PATENT ABSTRACTS OF JAPAN vol. 010, no. 198 (P - 476) 11 July 1986 (1986-07-11) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7393367B2 (en) | 2005-05-12 | 2008-07-01 | Henkel Kommanditgesellschaft Auf Aktien | Agent for dyeing keratin-based fibers |
Also Published As
Publication number | Publication date |
---|---|
DK0988908T3 (da) | 2004-08-09 |
HUP9903204A2 (hu) | 2001-12-28 |
HU9903204D0 (en) | 1999-11-29 |
HK1025279A1 (en) | 2000-11-10 |
ATE263645T1 (de) | 2004-04-15 |
CN1248502A (zh) | 2000-03-29 |
KR20000023337A (ko) | 2000-04-25 |
TW424020B (en) | 2001-03-01 |
ES2218920T3 (es) | 2004-11-16 |
DE59909095D1 (de) | 2004-05-13 |
PL335540A1 (en) | 2000-03-27 |
KR100681803B1 (ko) | 2007-02-15 |
US6411379B1 (en) | 2002-06-25 |
PT988908E (pt) | 2004-08-31 |
PL190825B1 (pl) | 2006-02-28 |
DE19843290A1 (de) | 2000-03-23 |
HUP9903204A3 (en) | 2002-02-28 |
CN1191899C (zh) | 2005-03-09 |
HU223998B1 (hu) | 2005-04-28 |
EP0988908B1 (de) | 2004-04-07 |
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