DE1440943A1 - Elektrisches ?ndselement - Google Patents
Elektrisches ?ndselementInfo
- Publication number
- DE1440943A1 DE1440943A1 DE19541440943 DE1440943A DE1440943A1 DE 1440943 A1 DE1440943 A1 DE 1440943A1 DE 19541440943 DE19541440943 DE 19541440943 DE 1440943 A DE1440943 A DE 1440943A DE 1440943 A1 DE1440943 A1 DE 1440943A1
- Authority
- DE
- Germany
- Prior art keywords
- silicide
- spirals
- end element
- electrical end
- electrical resistance
- 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.)
- Pending
Links
- 229910021332 silicide Inorganic materials 0.000 claims description 5
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052735 hafnium Inorganic materials 0.000 claims description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052726 zirconium Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 239000011230 binding agent Substances 0.000 description 2
- MANYRMJQFFSZKJ-UHFFFAOYSA-N bis($l^{2}-silanylidene)tantalum Chemical compound [Si]=[Ta]=[Si] MANYRMJQFFSZKJ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
- C04B35/58085—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides
- C04B35/58092—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides based on silicides based on refractory metal silicides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/148—Silicon, e.g. silicon carbide, magnesium silicide, heating transistors or diodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/018—Heaters using heating elements comprising mosi2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Ceramic Products (AREA)
- Resistance Heating (AREA)
Description
Die Erfindung betrifft ein elektrisches widerstandselement,
das aus einem Silicid oder Mischsilicid mit einem Schmelzpunkt über 1400° und einem Gehalt von 2o bis 8o Gewichts-Prozent
Molybdän, Wolfram, Chrom, Tantal, Niob, Vanadin, Hafnium, Zirkonium und/oder Titan, ggbf. unter Zusatz von
Siliciumcarbid, besteht.
Es hat sich gezeigt, daß ein gemäß der Erfindung zusammenge-•setztea
Material infolge seines hohen Schmelzpunktes, seiner guten Oxydationsbeständigkeit, seines zweckentsprechenden
Temperaturkoeffizienten und der verhältnismäßig großen Unveränd«rlichkeit
seines spezifischen Widerstandes bei hohen Temperaturen mit großem Vorteil als elektrisches Widerstandsmaterial
verwendet werden kann.
Das Material ist bei entsprechend starker Erhitzung bildsam, so daß es mit Leichtigkeit zu Spiralen, gefalteten Bändern
oder Rohren geformt werden kann. Gerade aus diesem Grunde eignet sich das Material besonders für die Herstellung von
Widerstandselementen in elektrischen Öfen und anderen elektrischen
Wärmeapparaten.
Gegenstand der Erfindung ist also, daß das Heizelement rohrförmig
ausgebildet und zu Spiralen, gefalteten Bändern oder
21099
9098^4/0432
/2
dergleichen geformt ist.
Die Erweichungstemperatur des Materials wird bei zunehmendem Anteil an Tantaldisilicid niedriger. Bei etwa Io Gewichtsprozent
Tantaldisilicid ist die Erweichungstemperatur so gering, daß das beispielsweise in Draht- oder Bandform
hergestellte Misch,
formt werden kann.
formt werden kann.
hergestellte Mischsilicid bereits bei 1500 gebogen und ge-
Insbesondere kann man die Möglichkeit plastischer Formgebung
der Masse in der Hitze in einem Zwischenstadium bei der Herstellung von Spiralen, gefalteten Bändern und dergleichen in
der V/eise technisch ausnutzen, daß man das Material zunächst in Form eines Drahtes, ßohres oder Bandes nach Zusatz temporärer
Bindemittel durch Spritzpressen in plastischem Zustande herstellt. Dann wird das Material getrocknet und nach
Vertreiben des Bindemittels in Schutzgasatmosphäre bei verhältnismäßig niedriger Temperatur gesintert. Dabei erhält man
ein Zwischenprodukt mit verhältnismäßig niedriger Erweichungstemperatur. Dieses Material wird nun in der Hitze zu Spiralen,
gefalteten Bändern geformt oder ihm eine andere gewünschte Form gegeben. Nach beendeter Formung geschieht das endgültige
Sintern an der Luft bei hoher Temperatur, beispielsweise bei 1600 , wodurch die Erweichungstemperatur des Materials
bis zu einem endgültigen hohen Wert ansteigt.
Claims (1)
- Patentanspruch;Elektrisches Widerstandselement, das aus einem Silicid oder Mischsilicid mit einem Schmelzpunkt über 1400° und einem Gehalt von 2o bis 8o Gewichtsprozent Molybdän, Wolfram, Chrom,. Tantal, Mob, Vanadin, Hafnium, Zirkonium und/oder Titan, ggbf. unter Zusatz von Siliciumcarbid, besteht, dadurch gekennzeichnet, daß das Heizelement rohrförmig ausgebildet ist und die Form von Spiralen, gefalteten Bändern oder dergl. besitzt.809844/0432
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE517853 | 1953-06-04 | ||
SE110354 | 1954-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1440943A1 true DE1440943A1 (de) | 1969-10-30 |
Family
ID=26654220
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA20467A Pending DE1161693B (de) | 1953-06-04 | 1954-06-02 | Verfahren zum Herstellen eines Hartstoffes hoher Oxydationsbestaendigkeit |
DE19541440943 Pending DE1440943A1 (de) | 1953-06-04 | 1954-06-02 | Elektrisches ?ndselement |
DE19541408459 Pending DE1408459A1 (de) | 1953-06-04 | 1954-06-02 | Feuerfestes oxydationsbestaendiges,auf pulvermetallurgischem Weg hergestelltes Material |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA20467A Pending DE1161693B (de) | 1953-06-04 | 1954-06-02 | Verfahren zum Herstellen eines Hartstoffes hoher Oxydationsbestaendigkeit |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19541408459 Pending DE1408459A1 (de) | 1953-06-04 | 1954-06-02 | Feuerfestes oxydationsbestaendiges,auf pulvermetallurgischem Weg hergestelltes Material |
Country Status (2)
Country | Link |
---|---|
CH (2) | CH376589A (de) |
DE (3) | DE1161693B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2023749C2 (de) * | 1969-05-16 | 1982-05-27 | Bulten-Kanthal AB, 73401 Hallstahammar | Elektrisches Widerstandselement zur Verwendung bei hohen Temperaturen |
US4174971A (en) * | 1975-12-11 | 1979-11-20 | Bulten-Kanthal Aktiebolag | Silicon carbide body containing a molybdenum disilicide alloy |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE595890C (de) * | 1928-01-20 | 1934-04-23 | Fried Krupp Akt Ges | Verfahren zur Herstellung von Hartkoerpern fuer Werkzeuge, insbesondere Ziehsteine, aus Gemischen, Legierungen oder Verbindungen hochkohlenstoffhaltiger Metalle oder Metalloide |
BE415048A (de) * | 1935-04-18 | |||
DE873674C (de) * | 1942-03-19 | 1953-04-16 | Saint Gobain | Metallkeramische Erzeugnisse |
DE877931C (de) * | 1942-10-20 | 1953-05-28 | Axel Richard Dr Wejnarth | Verfahren zur Herstellung von bei hohen Temperaturen bestaendigen Widerstandselementen |
-
1954
- 1954-06-02 DE DEA20467A patent/DE1161693B/de active Pending
- 1954-06-02 DE DE19541440943 patent/DE1440943A1/de active Pending
- 1954-06-02 DE DE19541408459 patent/DE1408459A1/de active Pending
- 1954-06-03 CH CH7993759A patent/CH376589A/de unknown
- 1954-06-03 CH CH651454A patent/CH376274A/de unknown
Also Published As
Publication number | Publication date |
---|---|
CH376589A (de) | 1964-04-15 |
DE1161693B (de) | 1964-01-23 |
DE1408459A1 (de) | 1969-01-30 |
CH376274A (de) | 1964-03-31 |
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