DE194171C - - Google Patents
Info
- Publication number
- DE194171C DE194171C DENDAT194171D DE194171DA DE194171C DE 194171 C DE194171 C DE 194171C DE NDAT194171 D DENDAT194171 D DE NDAT194171D DE 194171D A DE194171D A DE 194171DA DE 194171 C DE194171 C DE 194171C
- Authority
- DE
- Germany
- Prior art keywords
- tungsten
- molybdenum
- threads
- filaments
- camphor
- 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.)
- Active
Links
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000010937 tungsten Substances 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- DSSYKIVIOFKYAU-UHFFFAOYSA-N Camphor Chemical compound C1CC2(C)C(=O)CC1C2(C)C DSSYKIVIOFKYAU-UHFFFAOYSA-N 0.000 claims description 3
- 229960000846 Camphor Drugs 0.000 claims description 3
- 241000723346 Cinnamomum camphora Species 0.000 claims description 3
- 229930007890 camphor Natural products 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- GRWFGVWFFZKLTI-UHFFFAOYSA-N (+-)-2-pinene Chemical compound CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 1
- 239000011230 binding agent Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 229960002737 Fructose Drugs 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- 210000002356 Skeleton Anatomy 0.000 description 1
- 230000000996 additive Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
- H01K3/02—Manufacture of incandescent bodies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 21/. GRUPPECLASS 21 /. GROUP
JOHANN LUX in WIEN.JOHANN LUX in VIENNA.
Patentiert im Deutschen Reiche vom 10. April 1906 ab. Patented in the German Empire on April 10, 1906 .
Die Verarbeitung von pulverförmigem Wolfram oder Molybdän zu Leuchtfäden bereitet mitunter Schwierigkeiten, weil, wenn man die oben erwähnten Metalle, wie dies bei 5 Osmium geschieht, mit organischen Bindemitteln, z. B. Teer, Lävulose, Gummi usw.., zu einer Paste knetet, daraus Fäden preßt und diese dann mittels des durchgeschickten elektrischen Stromes glüht, man dann nichtThe processing of powdered tungsten or molybdenum into filaments prepares them sometimes difficulty because when you look at the metals mentioned above, like this at 5 osmium happens with organic binders such. B. tar, levulose, rubber etc .., knead into a paste, press threads out of it and then use the sent through electric current glows, then one does not
ίο reine Metallfäden, sondern Wolfram- oder Molybdänkarbidfäden erhält und diese erst einem Entkohlungsprozeß unterwerfen muß, um reine Wolfram- bzw. Molybdänfäden zu erhalten.ίο pure metal threads, but tungsten or Receives molybdenum carbide filaments and must first subject them to a decarburization process, to get pure tungsten or molybdenum filaments.
Solche Fäden eignen sich für Glühlampen nicht, da sich der bei der elektrischen Erhitzung freigewordene Kohlenstoff an der Glaswand des Fadenbehälters niederschlägt und diese dann undurchsichtig macht.Such threads are not suitable for incandescent lamps, as they are used in electrical heating released carbon is deposited on the glass wall of the thread container and then makes it opaque.
Will man daher Wolfram oder Molybdän oder ein Gemenge beider Metalle zu Fäden verarbeiten, ohne dieselben entkohlen zu müssen, so muß man solche Bindemittel wählen, die sich ohne Rückstand verflüchtigen.So if you want tungsten or molybdenum or a mixture of both metals to make threads to process without having to decarbonize them, such binders must be used choose that volatilize without residue.
Dazu eignen sich sehr gut einige aromatische Stoffe, insbesondere Kampfer, Pinenchlorhydrat usw.Some aromatic substances are very suitable for this, especially camphor and pinene chlorohydrate etc.
Das den Gegenstand der vorliegenden Erfindung bildende Verfahren zur Herstellung von Leuchtfäden aus Wolfram oder Molybdän für elektrische Glühlampen wird demnach wie folgt ausgeführt:The method of manufacture forming the subject of the present invention of filaments made of tungsten or molybdenum for electric light bulbs is therefore like is carried out as follows:
Man mischt, gegebenenfalls unter Zusatz von etwas Alkohol, die oben erwähnten Metallpulver mit etwa ο, ι bis 0,2 ihres Gewichtes Kampfer, wodurch eine krümelige Masse entsteht, welche sich leicht unter höherem Druck zu Fäden verarbeiten läßt. Solche Fäden sind, da sie zum größten Teile aus reinem Metall bestehen, stromleitend und können daher im Vakuum oder in indifferenten Gasen leicht geglüht werden, wobei sich der Zusatz verflüchtigt. Bei steigender Glut sintert das Metallskelett zu einem homogenen Faden zusammen. The abovementioned metal powders are mixed, optionally with the addition of a little alcohol with about ο, ι to 0.2 of their weight camphor, which creates a crumbly mass, which can be easily processed into threads under higher pressure. Such threads are as pure as they are for the most part Made of metal, it conducts electricity and can therefore be used in a vacuum or in inert gases be lightly annealed, whereby the additive is volatilized. When the embers rise, it sinters Metal skeleton together to form a homogeneous thread.
Es lassen sich in dieser Weise wohl auch die niederen (leitenden) Oxyde des Wolframs oder Molybdäns verarbeiten, doch empfiehlt sich in der Regel die Anwendung der Metallpulver. The lower (conductive) oxides of tungsten can also be found in this way or molybdenum, but the use of metal powder is usually recommended.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE194171C true DE194171C (en) |
Family
ID=457332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT194171D Active DE194171C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE194171C (en) |
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0
- DE DENDAT194171D patent/DE194171C/de active Active
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