DE3237193A1 - METHOD AND DEVICE FOR HEAT TREATMENT OF TUBES - Google Patents
METHOD AND DEVICE FOR HEAT TREATMENT OF TUBESInfo
- Publication number
- DE3237193A1 DE3237193A1 DE19823237193 DE3237193A DE3237193A1 DE 3237193 A1 DE3237193 A1 DE 3237193A1 DE 19823237193 DE19823237193 DE 19823237193 DE 3237193 A DE3237193 A DE 3237193A DE 3237193 A1 DE3237193 A1 DE 3237193A1
- Authority
- DE
- Germany
- Prior art keywords
- cooling chamber
- tubes
- chamber
- cooling
- water
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Furnace Details (AREA)
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Wärmebehandlung von Rohren aus Edelstahl Titan oder NE-Metallen bzw. deren Legierungen.The invention relates to a method and a device for the heat treatment of pipes made of stainless steel, titanium or non-ferrous metals or their alloys.
Es ist bekannt, derartige Rohre auf höhere Temperaturen von beispielssweiS'
anschließend abzukühlen.It is known that such pipes can be subjected to higher temperatures of, for example,
then cool down.
türen von beispielssweise HOO0C zu erwärmen undTo heat doors of for example HOO 0 C and
Die Erwärmung erfolgt dabei induktiv und die Rohre durchlaufen kontinuierlich zunächst die Glühkammer mit der Induktionsspule und anschließend eine wassergekühlte Kühlkammer.The heating takes place inductively and the tubes first run continuously through the annealing chamber with the induction coil and then a water-cooled cooling chamber.
Es ist auch bekannt, daß zur Erhöhung der Kühlwirkung in der Kühlkammer die Rohroberfläche umfassende Kohlebacken vorgesehen sein können, so daß die Abkühlung des Rohres auch durch die Wärme -Leitung erfolgt.It is also known that, to increase the cooling effect in the cooling chamber, carbon jaws encompassing the pipe surface can be provided so that the cooling of the pipe also takes place through the heat conduction.
Die bekannten Verfahren und Vorrichtungen haben aber den Nachteil, daß die Abkühlungsgeschwindigkeit nicht ausreichend hoch ist, bzw. der Durchlauf der Rohre langsam erfolgen muß, um eine ausreichende Kühlung zu erreichen.The known methods and devices have the disadvantage that the cooling rate is not is sufficiently high, or the passage of the pipes must be slow to ensure adequate cooling to reach.
Aufgabe der Erfindung ist es daher ein Verfahren zu • schaffen, mit dem eine schnellere Abkühlung kontinuierlich erwärmter Rohre möglich ist, sowie eine Vorrichtung zur Durchführung des Verfahrens.The object of the invention is therefore to create a method with which a faster cooling continuously heated tubes is possible, as well as a device for carrying out the method.
— 2 —- 2 -
- S - S.
Gelöst wird diese Aufgabe erfindungsgemäß durch das Verfahren gemäß Patentanspruch 1 und die Vorrichtung gemäß Anspruch 5, wobei die Unteransprüche ,jeweils vorzugsweise Weiterbildungen enthalten.This object is achieved according to the invention by the method according to patent claim 1 and the device according to claim 5, wherein the subclaims each preferably contain further developments.
Bei dem erfindungsgemäßen Verfahren wird die Abkühlung dadurch verbessert, daß die gesamte Vorrichtung, bestehend aus Glühkammer und Kühlkammern vor Fintritt der Rohre entgast wird und es wird dann entweder das Ausheizen aufrechterhalten oder aber die Abkühlung in einer Schutzgasatmosphäre vorgenommen.In the method according to the invention, the cooling improved by the fact that the entire device consists is degassed from the annealing chamber and cooling chambers before the entry of the tubes and then either the bakeout takes place maintained or the cooling carried out in a protective gas atmosphere.
Die Erfindung soll nachfolgend anhand von in den Zeich- a nungen dargestellten Ausführungsbeispielen erläutert werden.The invention is to be based on in the drawing a Embodiments illustrated are explained.
Dabei zeigt:It shows:
Fig. 1 einen Längsschnitt durch eine Ausführungsform, (reine Gaskühlung, Gas als Wärmeträger)Fig. 1 is a longitudinal section through an embodiment, (pure gas cooling, gas as heat carrier)
Flg. 2 einen Längsschnitt durch eine zweite Ausführungsform,
(Feststoff-Flächenkontakt·-Kühlung)Flg. 2 shows a longitudinal section through a second embodiment,
(Solid surface contact cooling)
Fig. 3 die Anordnung der Kohlebacken in der Kühlkammer und ·3 shows the arrangement of the coal jaws in the cooling chamber and
(Querschnitt)(Cross-section)
Fig. 4 Schleusenkammern an der Eintrittsseite der Rohre in die Vorrichtung.Fig. 4 lock chambers on the entry side of the pipes into the device.
- 6-- 6-
-i--i-
In der Fig. 1 ist im Anschluß an eine Glühkammer ?, die von einer Induktionsspule 5 umgeben ist, eine erste Kühlkammer 3 angeordnet, die doppelwandig ausgebildet ist, wobei der Zwischenraum zwischen den Wandungen von Kühlwasser 6 durchströmt wird. In Verbindung mit dieser Kühlkammer 3 steht eine zweite Kühlkammer 4. In dieser Kühlkammer sind Kohlebacken in Abständen hintereinander angeordnet, die schalenartig die Rohre 1 umgreifen. Diese Kohlebacken sind wassergekühlt, was durch die Leitungen 8 angedeutet worden ist. Am Eintritt der Rohre in die Vorrichtung, wie auch am Austritt sind Einrichtungen vorgesehen, die lediglich den Durchtritt der Rohre ermöglichen, es aber im übrigen zulassen, daß an die miteinander in Verbindung stehenden Kammern 2, 3 und 4 ein Vakuum angelegt werden kann, um diese Kammern zu entgasen.In Fig. 1 is following an annealing chamber? Which is surrounded by an induction coil 5, a arranged first cooling chamber 3, which is double-walled is, wherein the space between the walls of cooling water 6 flows through. In connection with this cooling chamber 3 there is a second cooling chamber 4. In this cooling chamber there are coal cheeks arranged at intervals one behind the other, which encompass the tubes 1 like a shell. These coal cheeks are water-cooled, which has been indicated by the lines 8. At the entry of the pipes into the device, as well as at the outlet, facilities are provided that only allow the pipes to pass through, but otherwise allow that the interconnected chambers 2, 3 and 4 a vacuum can be applied to degas these chambers.
In der Fig.. 4 ist als Beispiel für eine derartige Einrichtung eine Vakuumschleuse 9 dargestellt und in entsprechender Weise kann eine derartige Schleuse auf der gegenüberliegenden Rohraustrittsseite vorgesehen sein.In Fig. 4, a vacuum lock 9 is shown as an example of such a device and in a corresponding manner, such a lock can be provided on the opposite pipe outlet side be.
Die Anordnung der Kühlbacken 7 in der Kühlkammer 4 ist auch aus der Fig. 3 ersichtlich.The arrangement of the cooling jaws 7 in the cooling chamber 4 is can also be seen from FIG. 3.
Bei dem in der Fig. 2 dargestellten Ausführungsbeispiel befinden sich in der Kühlkammer 4 keine Kohlebacken, sondern das Rohr ist von einer KühlschlangeIn the embodiment shown in FIG there are no coal jaws in the cooling chamber 4, but the tube is from a cooling coil
im Abstand umgeben. Auch hier erfolgt, wie beim vorher beschrieben Ausführungsbeispiel, die Wärmeabgabe von den Rohren, also das Abkühlen, durch Wärmestrahlung. Bei dieser Ausführung münden in die Kühlkammer 4 Leitungen 10, durch die ein Schutzgas einführbar ist, und die Kühlwirkung dabei dadurch noch erhöht, wird, daß die Schutzgaseinführungen so angeordnet sind, daß das Schutzgas im Gegenstrom, bezogen auf die Bewegungsrichtung der Rohre, eingeführt wird»surrounded in distance. Here too, as in the previously described embodiment, the heat is emitted from the pipes, i.e. cooling, through thermal radiation. In this embodiment, they open into the cooling chamber 4 Lines 10, through which a protective gas can be introduced and the cooling effect thereby increased, is, that the protective gas inlets are arranged so that the protective gas is in countercurrent, based on the direction of movement the pipes, is inserted »
Claims (6)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3237193A DE3237193C2 (en) | 1982-10-05 | 1982-10-05 | Method and device for the heat treatment of pipes |
NL8302697A NL8302697A (en) | 1982-10-05 | 1983-07-28 | METHOD AND APPARATUS FOR HEATING TUBES. |
JP58146280A JPS5970727A (en) | 1982-10-05 | 1983-08-10 | Pipe heat treatment and device |
IT22552/83A IT1169544B (en) | 1982-10-05 | 1983-08-12 | PROCEDURE AND DEVICE FOR HEAT TREATMENT OF PIPES |
FR8315623A FR2533942B1 (en) | 1982-10-05 | 1983-09-30 | PROCESS AND DEVICE FOR THE HEAT TREATMENT OF TUBES |
SE8305449A SE8305449L (en) | 1982-10-05 | 1983-10-04 | PROCEDURE AND DEVICE FOR HEAT TREATMENT OF RODS |
GB08326629A GB2128207B (en) | 1982-10-05 | 1983-10-05 | Heat treatment of pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3237193A DE3237193C2 (en) | 1982-10-05 | 1982-10-05 | Method and device for the heat treatment of pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3237193A1 true DE3237193A1 (en) | 1984-04-05 |
DE3237193C2 DE3237193C2 (en) | 1985-11-28 |
Family
ID=6175187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3237193A Expired DE3237193C2 (en) | 1982-10-05 | 1982-10-05 | Method and device for the heat treatment of pipes |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5970727A (en) |
DE (1) | DE3237193C2 (en) |
FR (1) | FR2533942B1 (en) |
GB (1) | GB2128207B (en) |
IT (1) | IT1169544B (en) |
NL (1) | NL8302697A (en) |
SE (1) | SE8305449L (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309883A1 (en) * | 1983-03-17 | 1984-09-27 | Mannesmann AG, 4000 Düsseldorf | Method and apparatus for the heat treatment of pipes |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0425461A1 (en) * | 1989-10-27 | 1991-05-02 | Sandvik Special Metals Corp. | Continuous solution heat treatment of precipitation hardenable alloys |
DE102013114578A1 (en) | 2013-12-19 | 2015-06-25 | Sandvik Materials Technology Deutschland Gmbh | Annealing furnace and method for annealing a steel strand |
MX2018011905A (en) | 2016-03-31 | 2019-02-18 | Nippon Steel & Sumitomo Metal Corp | Heat treatment apparatus, heat treatment method for steel material, and hot bending method for steel material. |
IT201600081769A1 (en) * | 2016-08-03 | 2018-02-03 | C S M Spa | COOLING STATION FOR ELECTRIC RESISTANCE PRODUCTION PLANTS |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1929231A1 (en) * | 1969-06-10 | 1970-12-17 | Hoechst Ag | Unregistered fancy textile printing process |
US3708354A (en) * | 1971-06-09 | 1973-01-02 | Anaconda American Brass Co | Method and apparatus for measuring and controlling the continuous annealing of a long length of metal tubing |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR806287A (en) * | 1935-10-18 | 1936-12-11 | Process of annealing metal parts, in particular long and rigid metal bodies, such as tubes, pipes or bars | |
BE635787A (en) * | 1962-08-09 | |||
GB1186091A (en) * | 1967-03-21 | 1970-04-02 | Air Reduction | Electron Beam Heating Apparatus for Annealing Strip Material. |
US3593972A (en) * | 1969-02-25 | 1971-07-20 | Crucible Steel Corp | Annealing apparatus |
GB1292403A (en) * | 1969-11-15 | 1972-10-11 | Kobe Steel Ltd | Continous treatment method and apparatus for metals |
GB1428993A (en) * | 1973-07-03 | 1976-03-24 | Electricity Council | Continuous heat treatment of wire or rod |
ATA874874A (en) * | 1974-10-31 | 1978-02-15 | Ebner Ind Ofenbau | ANNEALING SYSTEM FOR BARS AND TUBES IN CHROME-NICKEL STEEL OR CHROME STEEL |
-
1982
- 1982-10-05 DE DE3237193A patent/DE3237193C2/en not_active Expired
-
1983
- 1983-07-28 NL NL8302697A patent/NL8302697A/en not_active Application Discontinuation
- 1983-08-10 JP JP58146280A patent/JPS5970727A/en active Pending
- 1983-08-12 IT IT22552/83A patent/IT1169544B/en active
- 1983-09-30 FR FR8315623A patent/FR2533942B1/en not_active Expired
- 1983-10-04 SE SE8305449A patent/SE8305449L/en not_active Application Discontinuation
- 1983-10-05 GB GB08326629A patent/GB2128207B/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1929231A1 (en) * | 1969-06-10 | 1970-12-17 | Hoechst Ag | Unregistered fancy textile printing process |
US3708354A (en) * | 1971-06-09 | 1973-01-02 | Anaconda American Brass Co | Method and apparatus for measuring and controlling the continuous annealing of a long length of metal tubing |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3309883A1 (en) * | 1983-03-17 | 1984-09-27 | Mannesmann AG, 4000 Düsseldorf | Method and apparatus for the heat treatment of pipes |
Also Published As
Publication number | Publication date |
---|---|
IT8322552A0 (en) | 1983-08-12 |
FR2533942B1 (en) | 1987-10-23 |
DE3237193C2 (en) | 1985-11-28 |
NL8302697A (en) | 1984-05-01 |
SE8305449L (en) | 1984-04-06 |
GB2128207B (en) | 1986-04-09 |
FR2533942A1 (en) | 1984-04-06 |
GB8326629D0 (en) | 1983-11-09 |
SE8305449D0 (en) | 1983-10-04 |
IT1169544B (en) | 1987-06-03 |
JPS5970727A (en) | 1984-04-21 |
GB2128207A (en) | 1984-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |