AT41358B - Mixing and processing instrument for dental purposes. - Google Patents
Mixing and processing instrument for dental purposes.Info
- Publication number
- AT41358B AT41358B AT41358DA AT41358B AT 41358 B AT41358 B AT 41358B AT 41358D A AT41358D A AT 41358DA AT 41358 B AT41358 B AT 41358B
- Authority
- AT
- Austria
- Prior art keywords
- mixing
- processing instrument
- dental purposes
- alloy
- nickel
- Prior art date
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Preparations (AREA)
Description
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Anrühr-und Bearbeitungsinstrument für zahntechnische Zwecke.
Es ist bereits Tantalmetall als Material für Anrühr-und Bearheitungsinstrumente für zahnärztliche Zwecke vorgeschlagen worden. Gemäss vorliegender Erfindung wird statt dessen eine Legierung von Nickel und Wolfram verwendet, die hinreichend duktil ist, um mechanisch verarbeitet werden zu können. Sehr brauchbar ist beispielsweise eine Legierung von 100/0 Nickel mit 90% Wolfram. Diese Legierung ist ausserordentlich widerstandsfähig gegen die meisten chemischen Agentien, so dass damit vor allem auch plastische Porzellanplombe. n- Massen bearbeitet werden können. ohne dass die Masse verfärbt wird.
An Härte und Elastizität steht die genannte Logierung dem Tantalmetall sehr nahe, ist aber ausseronlent- lich viel billiger als Tantalmetall.
Der Nickelgehalt der Legierungen kann innerhalb weiter Grenzen verändert werden, es ist indessen zweckmässig, nicht unter 5% herunter zu gehen, weil es sonst nur mit sehr grossen Schwierigkeiten gelingt, die Legierung duktil zu machen und weil die Duktilitat zu gering wird, um ein vorteilhaftes Verarbeiten noch zu ermöglichen. Andererseits wird man mit dem Nickelgehalt für vorliegenden Zweck nicht über etwa 50% hinausgehen, weil mit zunehmendem Nickelgehalt vor allem die chemische Widerstandsfähigkeit der Legierungen sehr stark abnimmt und bei weiterer Erhöhung des Nickelgehaltes leicht dazu fuhren kann, dass die Werkzeuge sowohl wie die zu bearbeitenden Massen bei dem Gebrauch der Werkzeuge beschädigt werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Mixing and processing instrument for dental purposes.
Tantalum metal has already been proposed as a material for mixing and handling instruments for dental purposes. According to the present invention, instead, an alloy of nickel and tungsten is used which is sufficiently ductile to be able to be processed mechanically. For example, an alloy of 100/0 nickel with 90% tungsten is very useful. This alloy is extraordinarily resistant to most chemical agents, so that it is particularly suitable for plastic porcelain seals. n-masses can be edited. without the mass becoming discolored.
In terms of hardness and elasticity, the above-mentioned logation is very close to tantalum metal, but it is much cheaper than tantalum metal.
The nickel content of the alloys can be varied within wide limits, but it is advisable not to go below 5%, because otherwise it will only be possible to make the alloy ductile with great difficulty and because the ductility is too low for an advantageous one Still allow processing. On the other hand, the nickel content for the present purpose will not go beyond about 50%, because with increasing nickel content the chemical resistance of the alloys in particular decreases very sharply and if the nickel content is increased further, this can easily lead to the tools as well as the masses to be machined be damaged when using the tools.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1907211349D DE211349C (en) | 1907-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT41358B true AT41358B (en) | 1910-03-10 |
Family
ID=5802182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT41358D AT41358B (en) | 1907-11-16 | 1908-10-30 | Mixing and processing instrument for dental purposes. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT41358B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4222461B4 (en) | 1992-01-24 | 2004-02-19 | Los Pinos Finca Agricola, S. L., Torremendo-Orihuela | Forming element for a device for producing boxes |
-
1908
- 1908-10-30 AT AT41358D patent/AT41358B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4222461B4 (en) | 1992-01-24 | 2004-02-19 | Los Pinos Finca Agricola, S. L., Torremendo-Orihuela | Forming element for a device for producing boxes |
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