DE3643651A1 - Process for the production of a shrink joint between at least two workpieces comprising materials with different expansion coefficients - Google Patents
Process for the production of a shrink joint between at least two workpieces comprising materials with different expansion coefficientsInfo
- Publication number
- DE3643651A1 DE3643651A1 DE19863643651 DE3643651A DE3643651A1 DE 3643651 A1 DE3643651 A1 DE 3643651A1 DE 19863643651 DE19863643651 DE 19863643651 DE 3643651 A DE3643651 A DE 3643651A DE 3643651 A1 DE3643651 A1 DE 3643651A1
- Authority
- DE
- Germany
- Prior art keywords
- workpieces
- materials
- expansion coefficients
- different expansion
- production
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/021—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles in a direct manner, e.g. direct copper bonding [DCB]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/32—Ceramic
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
- C04B2237/40—Metallic
- C04B2237/405—Iron metal group, e.g. Co or Ni
- C04B2237/406—Iron, e.g. steel
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
- C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
- C04B2237/84—Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer Schrumpfverbindung zwischen zwei Werkstücken aus Materialien unterschiedlicher Ausdehnungs koeffizienten.The invention relates to a method for manufacturing a shrink connection between two workpieces from materials of different expansion coefficients.
Die Herstellung von Schrumpfverbindungen zwischen zwei Werkstücken gleichen Materials oder ähnlichen Materials ist allgemein bekannt. Dabei wird das eine Werkstück erhitzt und mit dem anderen kalten Werkstück verbunden, beispielsweise wird ein erhitzter Ring als Schrumpfring auf ein kaltes Rohr aufgesteckt. Nach Abkühlen entsteht eine feste Verbindung, da das sich bei hohen Tempera turen ausdehnende Werkstück sich wieder zusammen zieht. Bei Werkstücken aus bestimmten Materialien ist ein entsprechend dem Stand der Technik be kanntes Schrumpfverfahren nicht anwendbar, da die Materialien aufgrund der unterschiedlichen Temperaturen der beiden Werkstücke Schaden nehmen können.The production of shrink connections between two workpieces of the same material or similar Materials is well known. It will one workpiece heated and cold with the other Workpiece connected, for example, a heated ring as a shrink ring on a cold one Pipe attached. After cooling, a firm connection, since this is at high tempera stretching workpiece together again pulls. For workpieces made of certain materials is a be according to the state of the art Known shrinking method not applicable, because the materials due to the different Temperatures of the two workpieces damage can take.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zum Herstellen einer Schrumpf verbindung zwischen zwei Werkstücken zu schaffen, bei dem die Festigkeit der Materialien der Werkstücke nicht nachteilig beeinträchtigt wird.The invention is therefore based on the object a method of making a shrink create a connection between two workpieces, where the strength of the materials of the Workpieces are not adversely affected.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Hauptanspruchs gelöst. Durch langsames Erhitzen der zu verbinden den Werkstücke in einem Ofen werden beide der gleichen Temperatur ausgesetzt, so daß keine mechanischen Beeinträchtigungen des Materials beim Verbinden der Werkstücke auftreten können. Durch die besondere Anordnung der Werkstücke in dem Ofen, derart, daß sie durch die Schwerkraft ineinandergleiten, sind keine Handgriffe, beispielsweise mit kaltem Werkzeug, notwendig. Die Werkstücke unterliegen demnach während des ganzen Verfahrens den gleichen Temperaturbe dingungen.This object is achieved by the characteristic features of the main claim solved. Connect by slowly heating the the workpieces in a furnace are both the exposed to the same temperature so that none mechanical impairments of the material can occur when connecting the workpieces. Due to the special arrangement of the workpieces in the oven, such that it is by gravity slide into each other, are not handles, for example with a cold tool. The workpieces are therefore subject to whole procedure the same Temperaturbe conditions.
Ein Ausführungsbeispiel der Erfindung soll in der nachfolgenden Beschreibung näher erläutert werden. Die einzige Figur zeigt einen Schnitt durch einen Keramikkugelkopf mit Stahlhülse.An embodiment of the invention is in the following description explained will. The only figure shows a cut through a ceramic ball head with steel sleeve.
Der in der Figur gezeigte Kugelkopf 1 aus Keramik wird beispielsweise in Steuerarmaturen benutzt. Der Kugelkopf 1 ist mit zylindrischen Ansätzen versehen, auf die die Betätigungskraft für die Steuerarmatur bzw. den Kugelkopf 1 aufgebracht werden soll. Dazu wird auf den Ansatz 2 eine Stahldüse 3 in der folgenden Weise aufge schrumpft. Der Stahlring 3 und der Kugelkopf 1 werden in einem Ofen derart angeordnet, daß der Stahlring mit der Innenkante des unteren Randes auf der Außenkante des Zylindrischen Ansatzes 2 aufliegt. Stahl hat einen größeren Ausdehnungskoeffizienten als Keramik, so daß bei hohen Temperaturen die Ausdehnung des Stahlringes 3 größer ist als die des keramischen Ansatzes 2. Dadurch gleitet der Stahlring 3 bei genügend hohen Temperaturen aufgrund der Schwerkraft auf den Ansatz 2 und nimmt die in der Figur dargestellte Stellung ein. Danach wird der Ofen abgeschaltet und beide Werkstücke kühlen langsam gleichmäßig ab. Dabei zieht sich der Ring 3 stärker zusammen als der Ansatz 2, so daß eine feste Verbindung gebildet wird.The ceramic ball head 1 shown in the figure is used, for example, in control fittings. The ball head 1 is provided with cylindrical approaches to which the actuating force for the control valve or the ball head 1 is to be applied. For this purpose, a steel nozzle 3 is shrunk on the approach 2 in the following manner. The steel ring 3 and the ball head 1 are arranged in a furnace in such a way that the steel ring lies with the inner edge of the lower edge on the outer edge of the cylindrical extension 2 . Steel has a larger expansion coefficient than ceramic, so that the expansion of the steel ring 3 is greater than that of the ceramic extension 2 at high temperatures. As a result, the steel ring 3 slides onto the attachment 2 at sufficiently high temperatures due to gravity and assumes the position shown in the figure. The furnace is then switched off and both workpieces cool slowly and evenly. The ring 3 contracts more than the neck 2 , so that a firm connection is formed.
Selbstverständlich können die beiden Werkstücke in dem Ofen auch derart angeordnet sein, daß im kalten Zustand der Kugelkopf 1 mit seinem zylinderförmigen Ansatz 2 auf dem Rand des Stahlringes aufliegt, so daß bei hohen Temperaturen der Ansatz 2 in den Ring gleitet.Of course, the two workpieces can also be arranged in the furnace in such a way that in the cold state the ball head 1 rests with its cylindrical attachment 2 on the edge of the steel ring, so that the attachment 2 slides into the ring at high temperatures.
Zur genauen Positionierung der Werkstücke zu einander können Stützelemente vorgesehen sein, die mit den Werkstücken in dem Ofen erhitzt werden und eine Führung des aufzuschrumpfenden Werkstückes bilden.For exact positioning of the workpieces support elements can be provided to one another, which is heated with the workpieces in the furnace be and a lead of the shrinking Form workpiece.
In dem Ausführungsbeispiel sind als Materialien für den Schrumpfring Stahl und für den Kugelkopf Keramik gewählt. Selbstverständlich kann das beschriebene Verfahren auch bei anderen Materialien unterschiedlicher Ausdehnungskoeffizienten angewandt werden.In the embodiment are as materials for the shrink ring steel and for the ball head Ceramics chosen. Of course it can described method also with other materials different coefficients of expansion be applied.
In dem in der Figur dargestellten Ausführungs beispiel weist der Ring 3 an seinem unteren inneren Rand eine Fase 4 auf, die die Zen trierung des Ringes 3 auf dem Ansatz 2 unterstützt.In the embodiment shown in the figure, the ring 3 has at its lower inner edge a chamfer 4 , which supports the Zen tration of the ring 3 on the neck 2 .
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863643651 DE3643651A1 (en) | 1986-12-17 | 1986-12-17 | Process for the production of a shrink joint between at least two workpieces comprising materials with different expansion coefficients |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863643651 DE3643651A1 (en) | 1986-12-17 | 1986-12-17 | Process for the production of a shrink joint between at least two workpieces comprising materials with different expansion coefficients |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3643651A1 true DE3643651A1 (en) | 1988-06-30 |
Family
ID=6316695
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863643651 Withdrawn DE3643651A1 (en) | 1986-12-17 | 1986-12-17 | Process for the production of a shrink joint between at least two workpieces comprising materials with different expansion coefficients |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3643651A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0688025A2 (en) | 1994-06-17 | 1995-12-20 | Hoechst CeramTec Aktiengesellschaft | Ceramic high voltage insulator |
EP0830917A1 (en) * | 1996-09-20 | 1998-03-25 | Marquart, Ingeborg | Chuck for clamping a tool on a machine tool and device for clamping tools by shrink fitting |
CN103182621A (en) * | 2013-03-19 | 2013-07-03 | 宝鸡石油机械有限责任公司 | Reverse flow method for shrinkage fitting of large sleeve type part |
-
1986
- 1986-12-17 DE DE19863643651 patent/DE3643651A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0688025A2 (en) | 1994-06-17 | 1995-12-20 | Hoechst CeramTec Aktiengesellschaft | Ceramic high voltage insulator |
EP0688025A3 (en) * | 1994-06-17 | 1996-01-10 | Hoechst Ceram Tec Ag | |
EP0830917A1 (en) * | 1996-09-20 | 1998-03-25 | Marquart, Ingeborg | Chuck for clamping a tool on a machine tool and device for clamping tools by shrink fitting |
US5992860A (en) * | 1996-09-20 | 1999-11-30 | Ingeborg Marquart | Chucking device for mounting a tool on a machine tool and clamping device for the shrink-fit clamping of tools |
CN103182621A (en) * | 2013-03-19 | 2013-07-03 | 宝鸡石油机械有限责任公司 | Reverse flow method for shrinkage fitting of large sleeve type part |
CN103182621B (en) * | 2013-03-19 | 2015-04-22 | 宝鸡石油机械有限责任公司 | Reverse flow method for shrinkage fitting of large sleeve type part |
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Legal Events
Date | Code | Title | Description |
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8127 | New person/name/address of the applicant |
Owner name: BORSIG-SMR ARMATUREN UND REGELTECHNIK GMBH, 1000 B |
|
8141 | Disposal/no request for examination |