AT77791B - Method for casting objects from Sicily, in particular electrical resistance bodies. - Google Patents
Method for casting objects from Sicily, in particular electrical resistance bodies.Info
- Publication number
- AT77791B AT77791B AT77791DA AT77791B AT 77791 B AT77791 B AT 77791B AT 77791D A AT77791D A AT 77791DA AT 77791 B AT77791 B AT 77791B
- Authority
- AT
- Austria
- Prior art keywords
- electrical resistance
- particular electrical
- sicily
- silicon
- resistance bodies
- Prior art date
Links
Landscapes
- Silicon Compounds (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zum Giessen von Gegenständen aus Sizilium, Insbesondere von elektrischen Widerstandskörpern.
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abnimmt, wegen Mangel an Homogenität verloren.
Der Grund, dass man zu Siliciumkonglomeraten gegriffen hat, lag ausschliesslich darin, dass es bisher nicht gelungen war, Gegenstände aus Silicium oder nahezu reinem Silicium in beliebiger Form durch Giessen herzustellen, und zwar wegen der Eigenschaft des Siliciums, nur während einer ganz kurzen Zeit in flüssigem Zustande zu verbleiben und sich im Zeitpunkte des Erstarrens plötzlich und energisch zusammenzuziehen, wodurch in dem sich abkühlenden Gussstück Risse und Brüche entstehen.
Den Gegenstand der vorliegenden Frfindung bildet ein Verfahren zur Erzeugung von Gegenständen aus Silicium, insbesondere von elektrischen Widerstandskörpern, durch das die erwähnten Dbelstände behoben werden. Das Wesen der Erfindung besteht darin, dass dem
Silicium ein kleiner, 18% nicht übersteigender Zusatz von Metallen, z. B. Eisen, Nickel, Rupier, Magnesium und dgl. beigefügt wird, wodurch das zu rasche Erkalten und plötzliche Zusammen,ziehen des schmelzflüssigen Gegenstandes hintangehalten wird.
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Gegenstände als eigentliche elektrische Wideistande oder als Heizkörper Verwendung finden sollen.
Der Metallzusatz macht das Silicium @@@@chend giessfähig, so dass bei entsprechender Ausgestaltung der Gussformen, durch welche das Zusammenziehen des Gussstückes bis zu einem
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for casting objects from Sicily, in particular electrical resistance bodies.
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decreases, lost due to lack of homogeneity.
The sole reason for resorting to silicon conglomerates was that so far it had not been possible to manufacture objects from silicon or almost pure silicon in any shape by casting, because of the property of silicon, only for a very short time to remain in a liquid state and to contract suddenly and energetically at the time of solidification, as a result of which cracks and breaks occur in the cooling casting.
The subject matter of the present invention is a method for producing objects made of silicon, in particular electrical resistance bodies, by means of which the aforementioned dowels are eliminated. The essence of the invention is that the
Silicon is a small addition of metals that does not exceed 18%, e.g. B. iron, nickel, rupier, magnesium and the like. Is added, whereby the too rapid cooling and sudden contraction, pulling the molten object is prevented.
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Objects should be used as actual electrical Wideistande or as a radiator.
The metal additive makes the silicon @@@@ chend pourable, so that with the appropriate design of the casting molds, through which the contraction of the casting up to one
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** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT77791T | 1912-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT77791B true AT77791B (en) | 1919-08-25 |
Family
ID=3599389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT77791D AT77791B (en) | 1912-05-03 | 1912-05-03 | Method for casting objects from Sicily, in particular electrical resistance bodies. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT77791B (en) |
-
1912
- 1912-05-03 AT AT77791D patent/AT77791B/en active
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