DE967151C - Arrangement for inductive heating of wires, bands, etc. like - Google Patents
Arrangement for inductive heating of wires, bands, etc. likeInfo
- Publication number
- DE967151C DE967151C DEB20543A DEB0020543A DE967151C DE 967151 C DE967151 C DE 967151C DE B20543 A DEB20543 A DE B20543A DE B0020543 A DEB0020543 A DE B0020543A DE 967151 C DE967151 C DE 967151C
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- wires
- pairs
- arrangement
- strips
- 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
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
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/60—Continuous furnaces for strip or wire with induction heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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)
- Insulating Of Coils (AREA)
Description
Es ist bekannt, Drähte, Bänder u. dgl. aus Metall oder Eisen dadurch zu erwärmen, daß eine in sich kurzgeschlossene Stroinschleife gebildet wird, die die Sekundärwicklung eines Transformatcwrs ist. Der in dieser Stromechleife fließende Kurzschluß strom erwärmt das Material.It is known to heat wires, ribbons and the like made of metal or iron by having a short-circuited Stroin loop is formed, the is the secondary winding of a transformer. The short-circuit current flowing in this current loop heats the material.
Bei einer bekannten Anordnung dieser Art zum Warmwalzen von Metallen.wird die Stromschleife aus zwei gleichzeitig zu erwärmenden Bändern gebildet. Anfang sowie Ende der beiden Bänder laufen dabei zwischen je zwei MetalLrollen hindurch, wobei die Bänder mit den Rollen einen elektrischen Kontakt bilden, über die der Kurzschlußstrom fließt. Bei derartigen Kontakten bereitet jedoch die Erzielung einer ständig guten Kontaktabgabe, vor allem bei hohen Stromstärken, Schwierigkeiten. Dies liegt daran, daß besonders bei hohen Strömen auf der Oberfläche der Rollen kleine Einbrennstellen entstehen, die im Laufe der Zeit zu einer Aufrauhung der Oberfläche führen, wodurch die Kontaktgabe immer mehr verschlechtert wird. Bei heißem Band wird die Kontaktrolle natürlich auch heiß, wodurch die Kontaktschwierigkeiten " noch größer werden.In a known arrangement of this type for hot rolling metals, the current loop formed from two strips to be heated at the same time. The beginning and end of the two belts run between each two metal rollers, the belts with the rollers having an electrical connection Form contact through which the short-circuit current flows. In the case of such contacts, however, the achievement of a consistently good contact makes one preparatory especially with high currents, difficulties. This is because that especially at high currents Small burn-in marks appear on the surface of the rollers, which over time lead to a Lead roughening of the surface, whereby the contact is deteriorated more and more. at Of course, when the tape is hot, the contact roller is also hot, which makes the contact difficult grow.
a5' Die beschriebenen Kontaktschwierigkeiten werden erfindungsgemäß dadurch behoben, daß an zwei Stellen ein elektrischer Kontakt zwischen den Drähten oder Bändern, z. B. mittels zweier Rollenpaare, die die Drähte oder Bänder aneinanderpressen, hergestellt wird. Die Rollenpaare können dabei auch aus elektrisch nicht leitendem Werkstoff hergestellt werden. Dadurch wird wegen der schlechten Wärmeleitfähigkeit der Isolierstoffe die Wärmeabgabe des Heizgutes an <*ii "Rollen und' Lagerstellen vermindert.a5 'The contact difficulties described are eliminated according to the invention in that an electrical contact between the wires or ribbons, eg. B. by means of two pairs of rollers that press the wires or tapes together, is made. The pairs of rollers can also be made of electrically non-conductive material. Because of the poor thermal conductivity of the insulating materials, the heat dissipation of the material to be heated to <* ii "rollers and bearings is reduced.
Abb. ι zeigt ein Ausführungsbeispiel der Erfindung. Die Bänden und 1'werden durch die Rollenpaare 2 und 3 kräftig zusammengedrückt, damit ein, "guter elektrischer Kontakt zwischen den beidenFig. Ι shows an embodiment of the invention. The volumes and 1 'are supported by the pairs of rollers 2 and 3 pressed together firmly, creating a "good electrical contact between the two."
Bändern entsteht. Durch die Führungsrollen 4 bis 9 werden die Bänder um den einen. Schenkel des1 Transformators 10 herumgeführt. Die Primärwicklung 11 kann entgegen der Zeichnung zur Verminderung der Streuung auch auf diesem Schenkel an-Ribbons is created. Through the guide rollers 4 to 9, the bands are around the one. Legs of 1 transformer 10 led around. The primary winding 11 can, contrary to the drawing to reduce the scattering, also on this leg.
geordnet werden. Die Führungsrollen 4 und 5 sowie 8 und 9 sollen· bewirken, daß die Berührungsfläche" des Bandes mit den Rollenpaaren' 2 und 3 möglichst klein ist. Sie. sind überflüssig, wenn die Rollenpaare 2 und 3 -aus Isolierstoff bestehen. be sorted. The guide rollers 4 and 5 as well as 8 and 9 should · cause the contact surface " of the belt with the pairs of rollers' 2 and 3 is as small as possible. She. are superfluous, if the pairs of rollers 2 and 3 are made of insulating material.
Bei Drähten erhalten die Rollenpaare 2 und 3 zweckmäßig eine Führungsrille. Abb. 2 zeigt ein solches Rollenpaar 2 mit den Drähten 12.In the case of wires, the pairs of rollers 2 and 3 are expediently provided with a guide groove. Fig. 2 shows a such a pair of rollers 2 with the wires 12.
Bänder sind häufig nicht eben. Man erhält dann statt einer linienförmigen Berührung der Bänder gegeneinander nur eine punktförmige Berührungsstelle. Dort besteht dann die Gefahr zu hoher örtlicher Erhitzung der Bänder. Zur Verbesserung der Kontaktabgabe wird erfindungsgemäß eine der beiden Rollen so gelagert^ daß sich die Rolle in der Ebene, die durch die beiden Rollenachsen geht, frei einstellen kann. Abb. 3 zeigt eine derartige Anordnung. Die Bänder 1 und 1' laufen durch das Rollenpaar 2. Die Achsstummel der oberen Rolle können sich in den senkrechten Führungen 13 bewegen. Die Rolle 14 preßt über die obere Rolle des Rollenpaares 2 die beiden Bänder zusammen. Bei sehr breiten Bändern, kann man schließlich eine der. beiden Rollen des Rollenpaares in mehrere Teilrollen unterteilen, von denen jede Teilrolle für sich gegen das Band gedruckt wird. .Ribbons are often not flat. Instead of a linear contact between the bands, one then obtains only one point of contact against each other. There is then the risk of excessive local rates Heating the tapes. To improve the contact release, one of the two is used according to the invention Rollers mounted so that the roll is free in the plane that passes through the two roll axes can adjust. Fig. 3 shows such an arrangement. The belts 1 and 1 'run through the pair of rollers 2. The stub axles of the upper roller can move in the vertical guides 13. the Roller 14 presses over the upper roller of the roller pair 2 put the two bands together. In the case of very wide bands, you can finally choose one of the. both Subdivide roles of the pair of roles into several sub-roles, each of which is a sub-role for itself the tape is printed. .
Claims (3)
mehrere Teilrollen aufgeteilt ist.3. Arrangement 'according to claim 1 for the heating of wide. Belts in which the two belts are pressed against one another by two pairs of rollers, characterized in that one roller each of the pairs of rollers
is divided into several sub-roles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB20543A DE967151C (en) | 1952-05-25 | 1952-05-25 | Arrangement for inductive heating of wires, bands, etc. like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB20543A DE967151C (en) | 1952-05-25 | 1952-05-25 | Arrangement for inductive heating of wires, bands, etc. like |
Publications (1)
Publication Number | Publication Date |
---|---|
DE967151C true DE967151C (en) | 1957-10-10 |
Family
ID=6960369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB20543A Expired DE967151C (en) | 1952-05-25 | 1952-05-25 | Arrangement for inductive heating of wires, bands, etc. like |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE967151C (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE475931C (en) * | 1927-05-15 | 1929-05-06 | Wilhelm Hammer Dr | Device for hot rolling metals and alloys |
DE490282C (en) * | 1928-10-31 | 1930-01-27 | Siegfried Junghans | Device for the uninterrupted glowing of wires or bands made of metals and alloys by electrical means, whereby metal fuses serve as liquid contacts in the heating circuit |
US2437776A (en) * | 1944-05-22 | 1948-03-16 | Olin Ind Inc | Electric induction furnace for continuously heating metal strip |
DE888181C (en) * | 1944-04-04 | 1953-08-31 | Otto Junker Fa | Process for annealing and tempering strips or wires, in particular aluminum or aluminum alloys |
-
1952
- 1952-05-25 DE DEB20543A patent/DE967151C/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE475931C (en) * | 1927-05-15 | 1929-05-06 | Wilhelm Hammer Dr | Device for hot rolling metals and alloys |
DE490282C (en) * | 1928-10-31 | 1930-01-27 | Siegfried Junghans | Device for the uninterrupted glowing of wires or bands made of metals and alloys by electrical means, whereby metal fuses serve as liquid contacts in the heating circuit |
DE888181C (en) * | 1944-04-04 | 1953-08-31 | Otto Junker Fa | Process for annealing and tempering strips or wires, in particular aluminum or aluminum alloys |
US2437776A (en) * | 1944-05-22 | 1948-03-16 | Olin Ind Inc | Electric induction furnace for continuously heating metal strip |
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