DE974897C - Cover body for the edges of workpieces to be heated inductively - Google Patents

Cover body for the edges of workpieces to be heated inductively

Info

Publication number
DE974897C
DE974897C DEW4080D DEW0004080D DE974897C DE 974897 C DE974897 C DE 974897C DE W4080 D DEW4080 D DE W4080D DE W0004080 D DEW0004080 D DE W0004080D DE 974897 C DE974897 C DE 974897C
Authority
DE
Germany
Prior art keywords
cover body
workpieces
edges
workpiece
aluminum
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
DEW4080D
Other languages
German (de)
Inventor
Arthur Dipl-Ing Schmidt
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DEW4080D priority Critical patent/DE974897C/en
Application granted granted Critical
Publication of DE974897C publication Critical patent/DE974897C/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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34Methods of heating
    • C21D1/42Induction heating
    • 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06Surface hardening
    • C21D1/09Surface hardening by direct application of electrical or wave energy; by particle radiation
    • C21D1/10Surface hardening by direct application of electrical or wave energy; by particle radiation by electric induction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process 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)
  • Heat Treatment Of Articles (AREA)

Description

Nach einem nicht vorveröffentlichten Vorschlag soll die Abdeckscheibe für die Stirnkanten induktiv zu erwärmender Werkstücke aus Aluminium bzw. einer Aluminiumlegierung hergestellt werden und zumindest an der Anlegefläche mit dem Werkstück eine Eloxalschicht aufweisen. Mit einem solchen Abdeckkörper wird erreicht, daß das die Werkstückkante überschneidende Hochfrequenzfeld gedrosselt und damit die Heizleistung im WerkstückAccording to a proposal not previously published, the cover plate for the front edges should be inductive workpieces to be heated are made of aluminum or an aluminum alloy and have an anodized layer at least on the contact surface with the workpiece. With such a Cover body ensures that the high-frequency field intersecting the workpiece edge is throttled and thus the heating power in the workpiece

ίο herabgesetzt wird, so daß keine schädliche Übererwärmung der Werkstückkanten eintritt. Die Eloxalschicht bildet dabei eine elektrisch gut isolierende Zwischenschicht, die hart und abnutzungsfest ist und dem Abdeckkörper eine lange Gebrauchs-ίο is reduced so that no harmful overheating the workpiece edge occurs. The anodized layer forms an electrically well insulating one Intermediate layer that is hard and wear-resistant and that gives the cover body a long service life

IS fähigkeit verleiht. Aluminium hat aber keine so hohe elektrische Leitfähigkeit wie z. B. Kupfer oder Silber.IS ability. But aluminum doesn't have that high electrical conductivity such as B. copper or silver.

Der Erfindung liegt die Aufgabe zugrunde, einen Abdeckkörper mit möglichst hoher elektrischer Leitfähigkeit zu schaffen, dessen Gebrauchsfläche bei guter elektrischer Isoliereigenschaft sehr hart und abnutzungsfest ist. Gemäß derErfmdungbesteht der Abdeckkörper für die Kanten induktiv zu erwärmender Werkstücke aus einem Werkstück mit optimal hoher elektrischer Leitfähigkeit, vorzugsweise Kupfer, und ist mit einer Schicht aus Aluminium bzw. einer Aluminiumlegierung bewehrt, die zumindest an der mit dem Werkstück in Berührung gelangenden Fläche eloxiert ist.The invention is based on the object of providing a cover body with the highest possible electrical conductivity to create, the surface of which is very hard and with good electrical insulation properties is wear-resistant. According to the invention, the cover body for the edges is to be heated inductively Workpieces from a workpiece with optimally high electrical conductivity, preferably Copper, and is reinforced with a layer of aluminum or an aluminum alloy, which is anodized at least on the surface that comes into contact with the workpiece.

Die Aluminiumschicht kann auf dem Abdeckkörper aus Kupfer oder Silber aufgespritzt oder aufplattiert oder in anders geeigneter Weise verbunden sein. Nach dem Aufbringen der Al-Schicht wird das Eloxieren derselben vorgenommen. Die Anpassung des Abdeckkörpers an die Form des Werkstücks kann vor oder nach dem Eloxieren erfolgen.The aluminum layer can be sprayed or plated onto the covering body made of copper or silver or connected in some other suitable manner. After applying the Al layer, this will be Anodizing the same made. The adaptation of the cover body to the shape of the workpiece can be done before or after anodizing.

Der erfindungsgemäße Abdeckkörper findet Anwendung bei beliebigen Werkstücken, insbesondere aber bei Zahnrädern, die induktiv erwärmt und durch anschließendes Abschrecken oberflächengehärtet werden. Er kann aber auch beim Glühen und Anlassen von Werkstücken verwendet werden. In der Zeichnung ist der Erfindungsgegenstand beispielsweise veranschaulicht, und zwar als Abdeckscheibe für Zahnräder, deren Zähne induktiv erwärmt und durch anschließendes Abschrecken oberflächengehärtet werden. Das Zahnrad 1, bei dem jeweils die Zahnflanken zweier benachbarter Zähne durch einen in die Zahnlücke eingeführten Induktor 2 erhitzt und anschließend durch eine aus der Düse 3 austretende Abschreckflüssigkeit abgeschreckt werden, ist auf einen Dorn 4 aufgesteckt, der in Richtung des Pfeiles 5 gegenüber dem Induktor 2 längsbewegt wird. Um beim Eintritt und Austritt des Induktors eine schädliche Übererwärmung der Zahnkanten des Werkstücks zu vermeiden, ist dieses zwischen, die Abdeckscheiben 6 gespannt, die entsprechend dem Zahnrad 1 verzahnt sind. Die Abdeckscheiben 6 bestehen z. B. aus Kupfer und sind an der Gebrauchsfläche mit einer dünnen Schicht 7 aus Aluminium bzw. einer Aluminiumlegierung versehen-, die außen eloxiert ist. Die Eloxierschicht ist durch die dick ausgezogene Linie 8 verdeutlicht.The cover body according to the invention is used for any workpieces, in particular but with gears that are inductively heated and surface hardened by subsequent quenching will. But it can also be used for annealing and tempering workpieces. In the drawing, the subject matter of the invention is illustrated, for example, as a cover plate for gears whose teeth are inductively heated and then quenched are surface hardened. The gear 1, in which each of the tooth flanks of two adjacent teeth heated by an inductor 2 inserted into the tooth gap and then heated by one of the The quenching liquid emerging from the nozzle 3 is quenched, is attached to a mandrel 4, which is moved longitudinally in the direction of arrow 5 relative to inductor 2. To when entering and Exit of the inductor to avoid harmful overheating of the tooth edges of the workpiece, this is stretched between the cover disks 6, which are toothed corresponding to the gear 1 are. The cover plates 6 consist, for. B. made of copper and are on the surface with a thin layer 7 made of aluminum or an aluminum alloy, which is anodized on the outside. The anodized layer is indicated by the thick line 8.

Claims (1)

PATENTANSPRUCH:PATENT CLAIM: Abdeckkörper für die Kanten induktiv zu erwärmender Werkstücke, dadurch gekennzeichnet, daß er aus einem Werkstück mit optimal hoher elektrischer Leitfähigkeit, vorzugsweise Kupfer, besteht und mit einer Schicht aus Aluminium bzw. einer Aluminiumlegierung bewehrt ist, die zumindest an der mit dem Werkstück in Berührung gelangenden Fläche eloxiert.Cover body for the edges of workpieces to be inductively heated, characterized in that that it is made from a workpiece with optimally high electrical conductivity, preferably copper, consists and is reinforced with a layer of aluminum or an aluminum alloy, which anodized at least on the surface that comes into contact with the workpiece. In Betracht gezogene Druckschriften:
»Aluminium-Taschenbuch«, 9. Auflage, 1942, S. 366bis36S.
Considered publications:
"Aluminum-Taschenbuch", 9th edition, 1942, pp. 366 to 36 p.
DEW4080D 1944-11-22 1944-11-22 Cover body for the edges of workpieces to be heated inductively Expired DE974897C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW4080D DE974897C (en) 1944-11-22 1944-11-22 Cover body for the edges of workpieces to be heated inductively

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW4080D DE974897C (en) 1944-11-22 1944-11-22 Cover body for the edges of workpieces to be heated inductively

Publications (1)

Publication Number Publication Date
DE974897C true DE974897C (en) 1961-05-25

Family

ID=7592180

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW4080D Expired DE974897C (en) 1944-11-22 1944-11-22 Cover body for the edges of workpieces to be heated inductively

Country Status (1)

Country Link
DE (1) DE974897C (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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