DE2537134A1 - Powder metallurgy superalloy disc powder capsule filling - by centrifugal and reciprocating action of capsule filled with preheated powder - Google Patents
Powder metallurgy superalloy disc powder capsule filling - by centrifugal and reciprocating action of capsule filled with preheated powderInfo
- Publication number
- DE2537134A1 DE2537134A1 DE19752537134 DE2537134A DE2537134A1 DE 2537134 A1 DE2537134 A1 DE 2537134A1 DE 19752537134 DE19752537134 DE 19752537134 DE 2537134 A DE2537134 A DE 2537134A DE 2537134 A1 DE2537134 A1 DE 2537134A1
- Authority
- DE
- Germany
- Prior art keywords
- powder
- capsule
- heated
- filled
- filling
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/54—Means for supporting containers or receptacles during the filling operation
- B65B43/60—Means for supporting containers or receptacles during the filling operation rotatable
- B65B43/62—Means for supporting containers or receptacles during the filling operation rotatable about an axis located at the filling position, e.g. the axis of the container or receptacle
-
- 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
- B22F3/004—Filling molds with powder
-
- 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
- B22F3/02—Compacting only
- B22F3/06—Compacting only by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/08—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for heating or cooling articles or materials to facilitate packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Füllverfahren für Kapseln Neben der üblichen Herstellung von Scheiben aus warmfesten Legierungen für Triebwerke wird in den letzten Jahren versucht, Technologien der @@vermetallurgie einzusetzen. Man füllt Pulver aus Superlegierungen in entsprechende Kapseln, evakuiert nach der Füllung die Kapsel, verschweißt den Saugstutzen und verdichtet die gefüllte Kapsel in einer Ileißisostatpresse. Ein Gesenkschmieden kann diesen Arbeitsschritten nachfolgen.Filling process for capsules In addition to the usual production of slices From heat-resistant alloys for engines, attempts have been made in recent years to develop technologies to use the @@ vermetallurgie. Powders made from superalloys are filled into corresponding ones Capsules, after filling the capsule evacuates, welds the suction nozzle and compresses the filled capsule in an isostatic press. A drop forging can follow these steps.
Diese Vorgehensweise hat jedoch Nachteile. Bei komplizierten Profilen der Scheibe kann die Form der Kapsel der Endform nicht ausreichend angepaßt werden. Es muß darum mehr Material als an und für sich notwendig eingesetzt werden. Zum anderen ist das Evakuieren einer gefüllten Kapsel zeitaufwendig und auch nicht sehr gründlich, weil auf Grund der Geometrie der verbleibenden Freiräwne, die freie Weglänge ist vielfacIi größer als der Durchmesser des Freiraumes, das Austreten der Restgase aus der Pulverschüttung sehr ers@@wert ist. Beide Taktoren, die verhältnismäßig schleuchte Schüttung bei kompliziert gestalteter Kapsel und der verbleibende Jestgasgehalt in der Schüttung, sind Ursachen für unzureichende Eigenschaften des anschließend druckgesinterten Werkstückes.However, this approach has disadvantages. With complicated profiles of the disk, the shape of the capsule cannot be sufficiently adapted to the final shape. More material must therefore be used than is necessary in and of itself. To the for others, evacuating a filled capsule is time consuming and not very thorough, because due to the geometry of the remaining free spaces, the free path length is much larger than the diameter of the free space, the leakage of the residual gases from the bulk of the powder is very valuable. Both tactors that are proportionate poor bulk with a complicated capsule and the remaining residual gas content in the bed, are causes of inadequate properties of the subsequently pressure-sintered workpiece.
Es wird vorgeschlagen, eine bessere Schüttung der Pulverteilchen und damit einen höheren Füllfaktor dadurch zu erreichen, daß die Kapsel während der Füllung oder auch nach der Füllung gedreht und zudem in Richtung der Drehachse geschwungen wird. Seide hewegungen führen dazu, daß liohlräume und hrücken beim Füllen der Kapsel ausgeschlossen werden. Jedes einzelne Pulverteilchen wird optimal eingeordnet.It is suggested that the powder particles and powder particles be better packed thus to achieve a higher fill factor that the capsule during the Filling or rotated after filling and also swung in the direction of the axis of rotation will. Silk movements lead to cavities and wrinkles when filling the capsule be excluded. Each individual powder particle is optimally classified.
Diese Vorgehensweise hätte jedoch den Nachteil, daß eine solche ideale Füllung der Kapsel das Ausheizen und Entfernen von Restgasen noch mehr erschwert. Der verbleibende größere Anteil an Ttestgasen wird die mechanischen Eigenschaften in Frage stellen.However, this approach would have the disadvantage that such an ideal Filling the capsule bakeout and removing Residual gases still more difficult. The remaining larger proportion of test gases becomes the mechanical Question properties.
Darum wird die beschriebene Art der Füllung der Kapsel verbunden mit einer Entgasung des Pulvers. Das Entgasen geschieht nicht in der Kapsel sondern innerhalb eines beheizten und unter Vakuum stehenden ltohres oberhalb der Kapsel. Das beheizte Hoher kann die Form einer Schüttelrinne haben oder auch ein Fallrohr mit Schikanblechen oder ein Rohr mit eingefügter Spirale sein. Jede dieser Konstruktion hat zum Ziel, das einzelne Pulverkorn eine ausreichende Zeit im beheizten Rohr zu halten, um die Desorption von der das Pulverkorn umschließenden Gashaut möglich zu machen. Zudem ist die Konstruktion so zu wählen, daß nur einige wenige oder nur eine Lage von Körnern huber Schdttelrinne oder Schikanbleche läuft.That is why the type of filling of the capsule described is associated with a degassing of the powder. The degassing does not take place in the capsule but inside a heated and vacuum tube above the capsule. The heated high can be in the form of a vibrating chute or a downpipe with baffle plates or a pipe with an inserted spiral. Any of these construction The aim is to keep the individual grain of powder in the heated tube for a sufficient period of time keep to the desorption of the gas skin surrounding the powder grain possible close. In addition, the design is to be chosen so that only a few or only A layer of grains runs over a vibrating channel or baffle plates.
Die Figur 1 beschreibt eine Vorrichtung gemäß dem erläuterten Verfahren. Das Pulver wird dem behälter (1) über ein Schleusenventil (2) entnommen und gelangt in das beheizte ltohr (3), das an beiden Stirnseiten Federbälge (4) trägt, um es in Achsrichtung schwingen zu können. Das beheizte Rohr wird von dem Ofen (5) eingeschlossen. Der Anschlußstutzen (6) führt zur Vakuumpumpe (14). An den unteren Federbalg schließt sich eine vakuumdichte Drehdurchführung an, die nach unten in einem Flansch endet. Unterhalb dieses Flansches wird z.B. mit Widerstandserhitzung über zwei Kontaktstellen (7) mit Ililfe eines hydraulisch zu betätigenden Backenpaares (8) die Kapsel verschlossen. Die Kapsel (9) wird aufgenoiimen von zwei Schalen (10), die zugleich das Drehmoment des Motors (11) auf die Kapsel übertragen. Die Füllhöhe wird durch einen geeigneten Geber (15) bestiqimt.FIG. 1 describes a device according to the method explained. The powder is removed from the container (1) via a sluice valve (2) and arrives into the heated pipe (3), which has bellows (4) on both front sides, around it to be able to oscillate in the axial direction. The heated tube is enclosed by the furnace (5). The connection piece (6) leads to the vacuum pump (14). Closes to the lower bellows a vacuum-tight rotary feedthrough that ends at the bottom in a flange. Below this flange, e.g. with resistance heating via two contact points (7) with the aid of a hydraulically operated pair of jaws (8) the capsule is closed. The capsule (9) is aufgenoiimen of two shells (10), which at the same time the torque of the motor (11) on the capsule. The filling level is determined by a suitable Encoder (15) determined.
Die axiale Bewegung der Kapsel kann beispielsweise mechanisch durch den Motor (11) und ein geeignetes Getriebe (12) erzwungen oder auch elektromagnetisch erreicht werden, wenn man nur zwischen Motor und der unteren Schale (10) ein axiales Spiel zuläßt.The axial movement of the capsule can, for example, be mechanical the motor (11) and a suitable gear (12) forced or electromagnetic can be achieved if there is only an axial between the motor and the lower shell (10) Game allows.
Die Verwendung des Verfahrens ist vorzugsweise ausgerichtet auf Superlegierungen, deren Legierungselemente z.T. hochsauerstoffaffin sind. Das Verfahren ist Jedoch nicht nur auf die genannte *) (13) Legierungsgruppe der hochwarmfesten Superlegierungen und auch nicht nur auf die Form von Scheiben bel:i-enzt, hach diesem Verfahren können auch Legierungen anderer Art und Zusammensetzung, wenn sie nur inerte behandlung erfordern, in gegebene Kapseln gefüllt werden.The use of the method is preferably geared towards superalloys, Some of the alloying elements are highly oxygen-affine. The procedure is however not only on the mentioned *) (13) Alloy group of the high temperature resistant Superalloys and not just on the shape of discs: i-enzt, hach this one Process can also use alloys of other types and compositions, if only Require inert treatment to be filled into given capsules.
Statt der Scheiben von Triebwerken sind auch andere Rotationskörper nach diesem Verfahren vorteilhaft herzustellen. Darüber hinaus können auch integrierte Turbinenscheiben, an die sich die Schaufeln und gegebenenfalls der äußere Ring anschließen, nach diesen Verfahren gefertigt werden.Instead of the disks of engines, there are also other rotating bodies to produce advantageous by this method. In addition, you can also use built-in Turbine disks to which the blades and, if applicable, the outer ring are connected, are manufactured according to this process.
A 4 s P s: Ü C 11 E 1. Verfahren zum Einfüllen von Pulvern in Kapseln, die die Form von Itotationskörpern haben, dadurch g e k e n n z e i c h -n e t , daß das Einfüllen bei sich drehender Kapsel im Zentrum der Kapsel erfolgt und dabei die Kapseln parallel zu ihrer Drehachse hin und her geschwungen werden.A 4 s P s: Ü C 11 E 1. Procedure for filling powders into capsules, which have the form of itotation bodies, thus g e k e n n n z e i c h -n e t, that the filling takes place with rotating capsule in the center of the capsule and thereby the capsules are swung back and forth parallel to their axis of rotation.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752537134 DE2537134A1 (en) | 1975-08-20 | 1975-08-20 | Powder metallurgy superalloy disc powder capsule filling - by centrifugal and reciprocating action of capsule filled with preheated powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752537134 DE2537134A1 (en) | 1975-08-20 | 1975-08-20 | Powder metallurgy superalloy disc powder capsule filling - by centrifugal and reciprocating action of capsule filled with preheated powder |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2537134A1 true DE2537134A1 (en) | 1977-03-03 |
Family
ID=5954439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752537134 Pending DE2537134A1 (en) | 1975-08-20 | 1975-08-20 | Powder metallurgy superalloy disc powder capsule filling - by centrifugal and reciprocating action of capsule filled with preheated powder |
Country Status (1)
Country | Link |
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DE (1) | DE2537134A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2435310A1 (en) * | 1978-09-06 | 1980-04-04 | Asea Ab | METHOD AND MACHINE FOR FILLING A CAPSULE WITH POWDER |
FR2513916A1 (en) * | 1981-10-06 | 1983-04-08 | United Technologies Corp | Composite turbine disc made by powder metallurgy - where two superalloy powders are successively degassed in vacuo and fed into rotating mould for hot isostatic pressing |
CN102398028A (en) * | 2011-11-15 | 2012-04-04 | 中国航空工业集团公司北京航空材料研究院 | Vacuum thermal dynamic metal powder degassing and canning method |
EP3269475A1 (en) * | 2016-07-12 | 2018-01-17 | MTU Aero Engines GmbH | Capsule filling device for filling powder capsules for powder metallurgy and method for filling capsules |
-
1975
- 1975-08-20 DE DE19752537134 patent/DE2537134A1/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2435310A1 (en) * | 1978-09-06 | 1980-04-04 | Asea Ab | METHOD AND MACHINE FOR FILLING A CAPSULE WITH POWDER |
FR2513916A1 (en) * | 1981-10-06 | 1983-04-08 | United Technologies Corp | Composite turbine disc made by powder metallurgy - where two superalloy powders are successively degassed in vacuo and fed into rotating mould for hot isostatic pressing |
CN102398028A (en) * | 2011-11-15 | 2012-04-04 | 中国航空工业集团公司北京航空材料研究院 | Vacuum thermal dynamic metal powder degassing and canning method |
CN102398028B (en) * | 2011-11-15 | 2013-06-05 | 中国航空工业集团公司北京航空材料研究院 | Vacuum thermal dynamic metal powder degassing and canning method |
EP3269475A1 (en) * | 2016-07-12 | 2018-01-17 | MTU Aero Engines GmbH | Capsule filling device for filling powder capsules for powder metallurgy and method for filling capsules |
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Legal Events
Date | Code | Title | Description |
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OHJ | Non-payment of the annual fee |