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DE485502C - Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided - Google Patents

Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided

Info

Publication number
DE485502C
DE485502C DEA48102D DEA0048102D DE485502C DE 485502 C DE485502 C DE 485502C DE A48102 D DEA48102 D DE A48102D DE A0048102 D DEA0048102 D DE A0048102D DE 485502 C DE485502 C DE 485502C
Authority
DE
Germany
Prior art keywords
glowing
wire
annealing
subdivided
pots
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
Application number
DEA48102D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Germany
Original Assignee
BBC BROWN BOVERI and CIE
Brown Boveri und Cie AG Germany
Publication date
Priority to DEA48102D priority Critical patent/DE485502C/en
Application granted granted Critical
Publication of DE485502C publication Critical patent/DE485502C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54Furnaces for treating strips or wire
    • C21D9/663Bell-type furnaces

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 Strip Materials And Filament Materials (AREA)

Description

Einrichtung zur Beschleunigung des Glühvorganges in Drahtglühöfen, bei welchen - in unterteilten Glühtöpfen geglüht wird Erfahrungsgemäß kann der Glühvorgang in Drahtglühöfen über ein bestimmtes Maß hinaus auch durch größere Wärmezufuhr nicht verkürzt werden, da der Wärmeübergang von Draht zu Draht in den übereinander- und ineinanderliegenden Drahtringen ein sehr schlechter ist. Eine Wärmezufuhr, die größer ist als die Wärmeableitungsfähigkeit, führt deshalb unbedingt zu einer sehr starken Temperatursteigerung in den äußersten Drahtlagen, ohne daß dadurch der Glühprozeß selbst wesentlich beschleunigt wird.Device for accelerating the annealing process in wire annealing furnaces, In which - is annealed in subdivided annealing pots. Experience shows that the annealing process can in wire annealing furnaces beyond a certain level, even with a larger supply of heat be shortened because the heat transfer from wire to wire in the one above the other and interlocking wire rings is a very bad one. A heat supply that is greater is than the heat dissipation ability, therefore necessarily leads to a very strong Increase in temperature in the outermost wire layers without affecting the annealing process itself is significantly accelerated.

Nach der Erfindung soll dieser Temperaturausgleich dadurch beschleunigt werden, daß zwischen die Drahtringe in bestimmten Abständen Vollblechscheiben aus einem gut wärmeleitenden Material, z. B. Kupfer, eingelegt werden, die den Transport der Wärme von außen nach innen besorgen und deren Wärmeleitfähigkeit die des Eisens übertrifft.According to the invention, this temperature equalization is intended to be accelerated that solid sheet metal washers are made between the wire rings at certain intervals a material that conducts heat well, e.g. B. copper, are inserted, the transport get the heat from the outside to the inside and their thermal conductivity is that of iron surpasses.

In der Zeichnung ist als Ausführungsbeispiel ein elektrisch geheizter Drahtglühofen im Längsschnitt dargestellt, bei dem sich der zu glühende Draht a in einem besonderen, mit indifferentem Gas gefüllten Glühtopf g befindet. Der Glühtopf besitzt einen Eisenmantel m, während der Boden b und der Deckel d aus Kupfer bestehen. Die Heizung erfolgt durch Widerstände h, die den Mantel na des Topfes g umgeben und an der Innenfläche des gemauerten Ofens o angeordnet sind. In etwa gleichmäßigem Vertikalabstand sind im Innern des Glühtopfes g zwischen den Drahtringen a Kupferscheiben k eingelegt, die zum Transport der Wärme von außen nach innen dienen. Durch den Deckel d führen zwei Rohre e, f, durch die der Glühtopf mit indifferentem Gas zur Verhinderung der Oxydation des Drahtes in an sich bekannter Weise gefüllt werden kann.In the drawing, an electrically heated wire annealing furnace is shown in longitudinal section as an exemplary embodiment, in which the wire a to be annealed is located in a special annealing pot g filled with inert gas. The glow pot has an iron jacket m, while the bottom b and the cover d are made of copper. The heating is carried out by resistors h, which surround the jacket na of the pot g and are arranged on the inner surface of the brick oven o. In the interior of the annealing pot g, copper disks k, which serve to transport the heat from the outside to the inside, are inserted between the wire rings a at approximately the same vertical spacing. Two tubes e, f lead through the cover d, through which the annealing pot can be filled with inert gas to prevent oxidation of the wire in a manner known per se.

Die Wärmeleitscheiben können auch zwischen Drahtringen angeordnet werden, die unmittelbar im Ofenraum liegen, also direkt beheizt werden, insbesondere wenn der Ofen elektrisch geheizt ist.The heat conducting disks can also be arranged between wire rings that are located directly in the furnace chamber, that is, are directly heated, in particular when the oven is electrically heated.

Die Erfindung kann sinngemäß auch beim Glühen von Bändern Verwendung finden.The invention can analogously also be used in the annealing of strips Find.

Claims (1)

PATENTANSPRÜCHE: i. Einrichtung zur Beschleunigung des Glühvorganges in Drahtglühöfen, bei welchen in unterteilten Glühtöpfen geglüht wird, dadurch gekennzeichnet, daß zwischen die Drahtlagen Scheiben aus gut wärmeleitendem Metall, z. B. Kupfer, gelegt werden, deren Leitfähigkeit die des Eisens übertrifft. z. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß Boden und Deckel des Glühtopfes ebenfalls aus dem Metall mit hoher Wärmeleitfähigkeit bestehen, der Mantel des Glühtopfes dagegen aus Eisen.PATENT CLAIMS: i. Device to accelerate the annealing process in wire annealing furnaces, in which annealing is carried out in subdivided annealing pots, characterized in that, that between the wire layers washers made of highly thermally conductive metal, for. B. copper, whose conductivity exceeds that of iron. z. Establishment according to Claim i, characterized in that the bottom and cover of the annealing pot are also consist of the metal with high thermal conductivity, the jacket of the annealing pot on the other hand made of iron.
DEA48102D Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided Expired DE485502C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA48102D DE485502C (en) Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA48102D DE485502C (en) Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided

Publications (1)

Publication Number Publication Date
DE485502C true DE485502C (en) 1929-11-01

Family

ID=6936162

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA48102D Expired DE485502C (en) Device to accelerate the glowing process in wire glowing ovens, in which the glowing pots are subdivided

Country Status (1)

Country Link
DE (1) DE485502C (en)

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