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
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
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
Priority claimed from DE1907211349D external-priority patent/DE211349C/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT41358B publication Critical patent/AT41358B/en

Links

Landscapes

  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Preparations (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  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**.



   <Desc / Clms Page number 1>
 



  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)

PATENT-ANSPRUCH : Anrühr- und Bearbeitungsinstrument für zabntechnische Zwecke, dadurch gekenn- zeichnet, dass es aus einer mechanisch verarbeitbaren Legierung von 5-50 0 Nickel und 95-50% Wolfram besteht. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Mixing and processing instrument for Zabntechnical purposes, characterized in that it consists of a mechanically processable alloy of 5-50% nickel and 95-50% tungsten. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT41358D 1907-11-16 1908-10-30 Mixing and processing instrument for dental purposes. AT41358B (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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