DE267819C - - Google Patents
Info
- Publication number
- DE267819C DE267819C DENDAT267819D DE267819DA DE267819C DE 267819 C DE267819 C DE 267819C DE NDAT267819 D DENDAT267819 D DE NDAT267819D DE 267819D A DE267819D A DE 267819DA DE 267819 C DE267819 C DE 267819C
- Authority
- DE
- Germany
- Prior art keywords
- core
- coating
- precious metal
- pins
- consist
- 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
- 239000011162 core material Substances 0.000 claims description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 239000010970 precious metal Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000010953 base metal Substances 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 238000005476 soldering Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Wire Processing (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Den Gegenstand der Erfindung bildet ein Verfahren zur Herstellung der zur Befestigung künstlicher Zähne an ihrem Träger dienenden Stifte, die aus einem mit einem Überzug versehenen Kern bestehen. Insbesondere soll das Verfahren Verwendung finden zur Herstellung von Stiften mit einem Kern aus Unedelmetall und einem Überzug aus Edelmetall.The subject of the invention is a method for producing the fastening artificial teeth on their carrier serving pins, which are provided with a coating Core exist. In particular, the method is intended to be used for production of pens with a core made of base metal and a coating made of precious metal.
Es ist bereits bekannt, derartige Stifte inIt is already known to use such pins in
ίο der Weise herzustellen, daß von einem Draht, der mit Edelmetall überzogen ist, Stücke von der für die Stifte erforderlichen Länge abgeschmolzen werden. Dadurch wird jedoch an den Stiftenden kein Überzug aus reinem Edelmetall, sondern einer Legierung desselben mit dem unedlen Kernmetall erhalten, so daß bei dem Brennen der mit den Stiften versehenen Zähne die Stiftenden oxydieren.ίο in such a way that from a wire, which is coated with precious metal, melted pieces of the length required for the pins will. However, this does not result in a coating of pure precious metal on the pin ends, but rather an alloy of the same with the base metal, so that at the burning of the teeth provided with the pins oxidize the pin ends.
Dieser Nachteil wird durch das neue Verfahren beseitigt, und zwar dadurch, daß vor dem Herstellen des Überzuges an den Enden Maßnahmen getroffen werden, um die Hülle aus Edelmetall über den Kern so weit vorstehen zu lassen, daß aus dem vorstehenden Stück der Endverschluß geformt werden kann (Fig. 1).This disadvantage is eliminated by the new method, namely by the fact that before the production of the coating at the ends measures are taken to protect the shell made of precious metal protrude so far over the core that from the protruding piece the end closure can be molded (Fig. 1).
Der zwischen Kern und Hülle erforderlicheThe one required between the core and the shell
Längenunterschied wird dadurch erhalten, daß das Kernmaterial auf eine gewisse Tiefe durch chemische Mittel entfernt wird.The difference in length is obtained by the fact that the core material penetrates to a certain depth chemical agent is removed.
Zu diesem Zwecke werden von einem mit dem Überzug versehenen Draht Stücke in einer Länge abgeschnitten, welche die gewünschte Länge der fertigen Stifte um so viel übertrifft, daß der für den Endverschluß notwendige Teil der Hülle übrig bleibt. Das Entfernen eines Teils des Kerns erfolgt dann am besten durch Einbringen der Stifte in ein Bad, das zwar den Kern, aber nicht die Hülle angreift (z. B. Salpetersäure). For this purpose, pieces of wire provided with the coating are made in a length cut off, which exceeds the desired length of the finished pins by so much that the for the end closure part of the envelope remains. The removal of a part of the core is then best done by placing the pins in a bath, although the Attacks the core, but not the shell (e.g. nitric acid).
Bei der Bildung des End Verschlusses werden vorteilhafterweise die vorstehenden Enden der Hülle zunächst gegen die Achse des Stiftes hin zusammengestaucht (Fig. 2), dann die Ränder autogen verschweißt oder mit Hilfe eines Edelmetalles verlötet und schließlich die gebildeten Kappen aus Überzugsmetall gegen die Kernenden angedrückt (Fig. 3).Be in the formation of the end closure advantageously, the protruding ends of the sheath initially against the axis of the pin compressed (Fig. 2), then the edges autogenously welded or with the help of a precious metal soldered and finally the formed caps made of coating metal against the core ends pressed (Fig. 3).
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE267819C true DE267819C (en) |
Family
ID=524837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT267819D Active DE267819C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE267819C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742908C (en) * | 1937-12-11 | 1943-12-15 | Paul Ziegs | Process for the production of anchoring pins for artificial teeth, consisting of a core made of base metal and one or more coatings made of noble metal or noble metal alloy |
-
0
- DE DENDAT267819D patent/DE267819C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE742908C (en) * | 1937-12-11 | 1943-12-15 | Paul Ziegs | Process for the production of anchoring pins for artificial teeth, consisting of a core made of base metal and one or more coatings made of noble metal or noble metal alloy |
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