DE102006037382A1 - Sintering metal or ceramic materials for dental use comprises embedding a sinterable or presintered part in a powder, compacting the powder and sintering the part with microwaves - Google Patents
Sintering metal or ceramic materials for dental use comprises embedding a sinterable or presintered part in a powder, compacting the powder and sintering the part with microwaves Download PDFInfo
- Publication number
- DE102006037382A1 DE102006037382A1 DE102006037382A DE102006037382A DE102006037382A1 DE 102006037382 A1 DE102006037382 A1 DE 102006037382A1 DE 102006037382 A DE102006037382 A DE 102006037382A DE 102006037382 A DE102006037382 A DE 102006037382A DE 102006037382 A1 DE102006037382 A1 DE 102006037382A1
- Authority
- DE
- Germany
- Prior art keywords
- powder
- sintering
- application
- ceramic
- microwaves
- 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.)
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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
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
- A61C13/203—Methods or devices for soldering, casting, moulding or melting using microwave energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
-
- 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
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
- A61C13/001—Electrophoresis coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Sinterung von Metall- oder Keramikmaterial in der Dentaltechnik. Mit diesem Verfahren können auch Lötarbeiten oder Reparaturen in der Keramikverblendgerüsttechnik durchgeführt werden. Beim Sintern von Keramikrohlingen ist eine gleichzeitige Glasinfiltration möglich. Darüber hinaus eröffnet die Erfindung eine Reihe weiterer Anwendungsmöglichkeiten.The The invention relates to a method for sintering metal or Ceramic material in dental technology. With this method can also soldering or repairs in the Keramikverblendgerüsttechnik be performed. When sintering ceramic blanks, simultaneous glass infiltration is possible. Furthermore open the invention a number of other applications.
In
der älteren
PCT-Anmeldung
Es ist daher Aufgabe der im Anspruch 1 angegebenen Erfindung, das Sinterverfahren noch weiter zu beschleunigen, wobei auch Pulverkeramikteile gesintert werden können. Gemäß jedem der Ansprüche 7 bis 11 wird die Anwendung des erfindungsgemäßen Verfahrens für jeweils besondere Verfahren beansprucht. Neben weiteren Vorteilen im Einzelnen werden diese Verfahren durch die erfindungsgemäße Anwendung aufgabengemäß beschleunigt.It is therefore an object of the invention specified in claim 1, the sintering process even further to accelerate, with powdered ceramic parts sintered can be. According to everyone the claims 7 to 11, the application of the method according to the invention for each particular method claimed. In addition to other benefits in detail these methods by the application according to the invention accelerated task.
Aus
der
Die
Erfindung wird anhand der
In
Das
Pulver
Wie
in
Beispiel 1:Example 1:
Ein Keramiktiegel wird zu einem Drittel mit ca. 14 g eines Pulvers gefüllt, das zu 90 Gew.% aus Aluminapulver mit einer Partikelgröße von 2 bis 5 μm und 10 Gew.% Flammruß besteht. In das Pulver wird ein durch Elektrophorese hergestelltes Brückengerüst eingelegt und anschließend das Pulver durch leichtes Klopfen und Anpressen mit einem Kolben von oben verdichtet. Danach wird das Objekt auf einem Brennträger befindlich in einem Haushaltsmikrowellengerät (Panasonic) bei 800 Watt 170 Sekunden lang gesintert. In dieser Zeit entsteht eine Sintertemperatur von 1145°C, was einer Aufheizzeit von 400 grad/min entspricht. Nach kurzer Abkühlzeit wird das Gerüst mit einem Dampfstrahler gereinigt. Das gesinterte Gerüst ist in keinem Aspekt nachteiliger als ein herkömmlich gesintertes Gerüst. Vielmehr hat das Pulver eine verzugsstabilisierende Wirkung, was zu einem präziseren Gerüst führt.A ceramic crucible is filled to one third with about 14 g of a powder, which consists of 90 wt.% Of alumina powder with a particle size of 2 to 5 microns and 10 wt.% Flammruß. Into the powder, a bridge framework prepared by electrophoresis is inserted and then the powder is compacted from above by gentle tapping and pressing with a piston. Thereafter, the object is sintered on a firing tray in a household microwave oven (Panasonic) at 800 watts for 170 seconds. During this time, a sintering temperature of 1145 ° C is produced, which corresponds to a heating time of 400 degrees / min. After a short cooling time is the Scaffold cleaned with a steam jet. The sintered framework is in no aspect more disadvantageous than a conventional sintered framework. Rather, the powder has a distortion-stabilizing effect, resulting in a more precise framework.
Beispiel 2Example 2
Das Verfahren nach Beispiel 1 wird mit der Modifikation durchgeführt, dass der durch Elektrophorese hergestellte Gerüstrohling vor dem Einbringen in das Pulver mit einem Lanthanglaspulver überzogen wird, das zur Glasinfiltration üblicherweise verwendet wird. Mit der Sinterung findet also gleichzeitig die Glasinfiltration statt, die herkömmlich erst nach der Sinterung durchgeführt werden kann. Auch dieses Produkt ist voll zufrieden stellend, obwohl ein ganzer Verfahrensschritt eingespart wurde. Der immer bei einer Infiltration notwendige Überschuss an Glas wird von dem Pulver aufgenommen und ist beim Reinigen leicht vom Gerüst zu entfernen. Hierbei ist es zweckmäßig, unter dem Rohling das Pulver mit Partikeln anzureichern, die bevorzugt das überschüssige Infiltrierglas aufsaugen. Hierdurch wird die nachfolgende Reinigung erleichtert.The Process according to Example 1 is carried out with the modification that the scaffold blank prepared by electrophoresis prior to introduction in the powder is coated with a Lanthanglaspulver, the glass infiltration usually is used. With the sintering, therefore, at the same time finds the glass infiltration instead, the conventional only after sintering can be. Again, this product is fully satisfactory, though a whole process step was saved. Always at one Infiltration necessary excess Glass is absorbed by the powder and is easy to clean from the scaffolding to remove. It is expedient under the blank the To enrich powder with particles, which prefers the excess infiltration glass soak up. As a result, the subsequent cleaning is facilitated.
Beispiel 3Example 3
Ein
nach der Lehre der älteren
Anmeldung
Die vorstehend beschriebene Sintertechnik ermöglicht noch einige weitere Anwendungsmöglichkeiten. Sie kann dazu dienen, Grünkörper, die auf einer CAD/CAM-Fräsmaschine hergestellt werden, dicht zu sintern.The The sintering technique described above allows a few more Applications. It can serve to green bodies, the on a CAD / CAM milling machine be prepared to sinter tightly.
Dadurch, dass beliebig hohe Temperaturen innerhalb kurzer Zeit erzielt werden können, eignet sich das Verfahren auch zu Verlöten von Zahnteilen.Thereby, that arbitrarily high temperatures can be achieved within a short time can, the method is also suitable for soldering tooth parts.
Mit dem Verfahren ist auch ein schnelles und gleichmäßiges Vorwärmen von Einbettmassenmuffeln in der Guss- oder Presstechnik möglich.With The method is also a fast and uniform preheating of investment muffles possible in casting or pressing technology.
Ferner eignet sich das erfindungsgemäße Verfahren auch zum Erhitzen von Teilen, die gehärtet werden sollen.Further the method according to the invention is suitable also for heating parts that are to be hardened.
Eine weitere Möglichkeit besteht in dem Schmelzen von Pressrohlingen beim EmPress®-Verfahren.Another possibility is the melting of press blanks when Empress ® procedure.
Schließlich lassen sich Reparaturarbeiten bei Verbiendkeramikgerüsten durchführen, indem abgebrochene Teile an den Zahnersatz einfach angesintert werden.Finally leave carry out repair work on Verbiendkeramikgerüsten by broken parts Just be sintered to the dentures.
Aus vorstehenden Ausführungen ergibt sich auch, dass die erfindungsgemäßen Verfahren und Anwendungen auch für nicht dentale Teile geeignet sind, die dimensionsmäßig die gleiche Größe aufweisen.Out above also shows that the inventive methods and applications also for not suitable dental parts, the dimensionally the have the same size.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006037382A DE102006037382A1 (en) | 2006-08-09 | 2006-08-09 | Sintering metal or ceramic materials for dental use comprises embedding a sinterable or presintered part in a powder, compacting the powder and sintering the part with microwaves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006037382A DE102006037382A1 (en) | 2006-08-09 | 2006-08-09 | Sintering metal or ceramic materials for dental use comprises embedding a sinterable or presintered part in a powder, compacting the powder and sintering the part with microwaves |
Publications (1)
Publication Number | Publication Date |
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DE102006037382A1 true DE102006037382A1 (en) | 2008-02-21 |
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DE102006037382A Withdrawn DE102006037382A1 (en) | 2006-08-09 | 2006-08-09 | Sintering metal or ceramic materials for dental use comprises embedding a sinterable or presintered part in a powder, compacting the powder and sintering the part with microwaves |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106245095A (en) * | 2016-07-29 | 2016-12-21 | 中国矿业大学 | A kind of electrophoretic deposition microwave sintering combined machining method of cobalt chromium porcelain artificial tooth |
CN106283156A (en) * | 2016-07-29 | 2017-01-04 | 中国矿业大学 | A kind of electrophoretic deposition microwave sintering combined machining method of nickel chromium triangle porcelain artificial tooth |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585978A2 (en) * | 1989-06-30 | 1994-03-09 | TDK Corporation | Living hard tissue replacement, its preparation, and preparation of integral body |
US5702501A (en) * | 1996-02-23 | 1997-12-30 | Aida Chemical Industries Co., Ltd. | Clayish composition for molding shaped article of noble metal and method for production of sintered article of noble metal |
-
2006
- 2006-08-09 DE DE102006037382A patent/DE102006037382A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0585978A2 (en) * | 1989-06-30 | 1994-03-09 | TDK Corporation | Living hard tissue replacement, its preparation, and preparation of integral body |
US5702501A (en) * | 1996-02-23 | 1997-12-30 | Aida Chemical Industries Co., Ltd. | Clayish composition for molding shaped article of noble metal and method for production of sintered article of noble metal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106245095A (en) * | 2016-07-29 | 2016-12-21 | 中国矿业大学 | A kind of electrophoretic deposition microwave sintering combined machining method of cobalt chromium porcelain artificial tooth |
CN106283156A (en) * | 2016-07-29 | 2017-01-04 | 中国矿业大学 | A kind of electrophoretic deposition microwave sintering combined machining method of nickel chromium triangle porcelain artificial tooth |
CN106283156B (en) * | 2016-07-29 | 2018-05-15 | 中国矿业大学 | A kind of electrophoretic deposition of nickel chromium triangle porcelain artificial tooth-microwave sintering combined machining method |
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8130 | Withdrawal |