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DE678324C - Use of a steel alloy known per se for the production of electrical heating wires - Google Patents

Use of a steel alloy known per se for the production of electrical heating wires

Info

Publication number
DE678324C
DE678324C DEV27412D DEV0027412D DE678324C DE 678324 C DE678324 C DE 678324C DE V27412 D DEV27412 D DE V27412D DE V0027412 D DEV0027412 D DE V0027412D DE 678324 C DE678324 C DE 678324C
Authority
DE
Germany
Prior art keywords
heating wires
known per
steel alloy
production
electrical heating
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
DEV27412D
Other languages
German (de)
Inventor
Dr Erich Scheil
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.)
Kohle und Eisenforschung GmbH
Original Assignee
Kohle und Eisenforschung GmbH
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 Kohle und Eisenforschung GmbH filed Critical Kohle und Eisenforschung GmbH
Priority to DEV27412D priority Critical patent/DE678324C/en
Application granted granted Critical
Publication of DE678324C publication Critical patent/DE678324C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys

Landscapes

  • Conductive Materials (AREA)
  • Resistance Heating (AREA)

Description

Verwendung einer an sich bekannten Stahllegierung zur Herstellung von elektrischen Heizdrähten Es ist schon bekannt, Chrom-Aluminium-Legierungen, und zwar insbesondere solche, bei denen der Chromgehalt höher als der Aluminiumgehalt ist, als Werkstoff für elektrische Heizwidergtände zu verwenden. Legierungen von dieser Zusammensetzung besitzen zwar einen hohen elektrischen Widerstand, dagegen aber einen geringen Temperaturkoeffizienten. Infolgedessen rufen in Widerstandsdrähten, die aus den bekannten Legierungen bestehen, die unvermeidlichen Spannungsschwankungen störende Temperaturveränderungen hervor.Use of a steel alloy known per se for production of electric heating wires It is already known that chrome-aluminum alloys, in particular those in which the chromium content is higher than the aluminum content is to be used as a material for electrical heating resistors. Alloys of this composition have a high electrical resistance, however but a low temperature coefficient. As a result, call in resistance wires, which consist of the known alloys, the inevitable voltage fluctuations disturbing temperature changes.

Gegenstand der Erfindung ist die Verwendung einer an sich bekannten Stahllegierung zur Herstellung von elektrischen Heizdrähten mit einem Chromgehalt zwischen 1,8 und 45% und einem Aluminiumgehalt zwischen 7,5 und i2%. Legierungen dieser Zusammensetzung besitzen außer einem hohen elektrischen -Widerstand bei gewöhnlicher Temperatur (Raumtemperatur) auch einen hohen Temperaturkoeffizienten des Widerstandes. So weist z. B. eine Legierung mit 2,2% Chrom und 7,8% Aluminium und geringen anderen Beimengungen bei 2o° C einen Widerstand von o,93 und bei iooo° C einen solchen von auf, während Legierungen mit außerhalb der angegebenen Legierungsgrenzen liegenden Zusammensetzungen eine derartige Vereinigung eines hohen elektrischen Widerstandes mit einem hohen Temperaturkoeffizienten .nicht ;aufweisen.The invention relates to the use of a steel alloy known per se for the production of electrical heating wires with a chromium content between 1.8 and 45% and an aluminum content between 7.5 and 12%. In addition to a high electrical resistance at normal temperature (room temperature), alloys of this composition also have a high temperature coefficient of resistance. So z. B. an alloy with 2.2% chromium and 7.8% aluminum and small other additions at 20 ° C a resistance of o.93 and at 100o ° C one of while alloys with compositions outside the specified alloy limits do not have such a combination of a high electrical resistance with a high temperature coefficient.

Für die Verwendung einer solchen Legierung für Heizdrähte sind diese Eigenschaften von ,ausschlaggebender Bedeutung, da ihre Temperaturen von den Spannungsschwankungen des elektrischen Stromes viel weniger abhängig sind ,als die Temperaturen der bekannten Legierungen. Die Legierung gemäß der Erfindung besitzt außerdem den Vorzug einer sehr hohen Zunderfestigkeit.For the use of such an alloy for heating wires, these are Properties of, crucial, as their temperatures depend on the voltage fluctuations of the electric current are much less dependent than the temperatures of the known Alloys. The alloy according to the invention also has the merit of one very high scale resistance.

Außer Chrom und Aluminium können der Legierung gegebenenfalls auch Silicium, Titan, Beryllium, Mangan, - Nickel, Wolfram, Molybdän usw. zugesetzt werden. Die Menge der Zusätze darf insgesamt 2% nicht überschreiten.In addition to chromium and aluminum, the alloy can optionally also be used Silicon, titanium, beryllium, manganese, nickel, tungsten, molybdenum etc. can be added. The total amount of additives must not exceed 2%.

Claims (1)

PATENTANSPRUCH: Die Verwendung einer an sich bekannten Stahllegierung mit einem Chromgehalt von 1,8 bis 4,50/0 und einem 'Aluminiumgehalt zwischen 7,5 bis i2%, gegebenenfalls mit Zusätzen von Silicium, Titan, Beryllium, Mangan, Nickel, Wolfram oder Molybdän bis zu 2% als Werkstoff für elektrische Heizdrähte mit hohem elektrischem Widerstand und einem hohen Temperaturkoeffizienten des Widerstandes.PATENT CLAIM: The use of a steel alloy known per se with a chromium content of 1.8 to 4.50 / 0 and an aluminum content between 7.5 up to i2%, if necessary with additions of silicon, titanium, beryllium, manganese, nickel, Tungsten or molybdenum up to 2% as a material for electrical heating wires with a high electrical resistance and a high temperature coefficient of resistance.
DEV27412D 1931-10-16 1931-10-16 Use of a steel alloy known per se for the production of electrical heating wires Expired DE678324C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV27412D DE678324C (en) 1931-10-16 1931-10-16 Use of a steel alloy known per se for the production of electrical heating wires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV27412D DE678324C (en) 1931-10-16 1931-10-16 Use of a steel alloy known per se for the production of electrical heating wires

Publications (1)

Publication Number Publication Date
DE678324C true DE678324C (en) 1939-07-15

Family

ID=7583375

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV27412D Expired DE678324C (en) 1931-10-16 1931-10-16 Use of a steel alloy known per se for the production of electrical heating wires

Country Status (1)

Country Link
DE (1) DE678324C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147699B (en) * 1955-06-15 1963-04-25 Dr Carl Schusterius Heating element for heat devices
DE3825012A1 (en) * 1988-07-22 1990-01-25 Beru Werk Ruprecht Gmbh Co A MATERIAL FOR AN ELECTRICAL RESISTANCE ELEMENT WITH POSITIVE TEMPERATURE COEFFICIENT
DE102006041902A1 (en) * 2006-09-07 2008-03-27 Daimler Ag Components made of ultrahigh-carbon steels with reduced density and high scale resistance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1147699B (en) * 1955-06-15 1963-04-25 Dr Carl Schusterius Heating element for heat devices
DE3825012A1 (en) * 1988-07-22 1990-01-25 Beru Werk Ruprecht Gmbh Co A MATERIAL FOR AN ELECTRICAL RESISTANCE ELEMENT WITH POSITIVE TEMPERATURE COEFFICIENT
DE102006041902A1 (en) * 2006-09-07 2008-03-27 Daimler Ag Components made of ultrahigh-carbon steels with reduced density and high scale resistance
US8257646B2 (en) 2006-09-07 2012-09-04 Daimler Ag Components made of steels with an ultrahigh carbon content and with a reduced density and high scaling resistance

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