DE2118848B2 - ROTATIONAL SYMMETRIC, HOLLOW COMPOSITE BODY AND PROCESS FOR ITS PRODUCTION - Google Patents
ROTATIONAL SYMMETRIC, HOLLOW COMPOSITE BODY AND PROCESS FOR ITS PRODUCTIONInfo
- Publication number
- DE2118848B2 DE2118848B2 DE19712118848 DE2118848A DE2118848B2 DE 2118848 B2 DE2118848 B2 DE 2118848B2 DE 19712118848 DE19712118848 DE 19712118848 DE 2118848 A DE2118848 A DE 2118848A DE 2118848 B2 DE2118848 B2 DE 2118848B2
- Authority
- DE
- Germany
- Prior art keywords
- fiber
- fibers
- centrifugal
- inner layer
- matrix
- 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.)
- Granted
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
- B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
- B29C70/323—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould
- B29C70/326—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core on the inner surface of a rotating mould by rotating the mould around its axis of symmetry
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12333—Helical or with helical component
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12444—Embodying fibers interengaged or between layers [e.g., paper, etc.]
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12486—Laterally noncoextensive components [e.g., embedded, etc.]
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12736—Al-base component
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12771—Transition metal-base component
- Y10T428/12778—Alternative base metals from diverse categories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Separation By Low-Temperature Treatments (AREA)
Description
Dichte im von der Fliehkraft besonders belasteten äußeren Teil des Rotationskörpers vorliegt: dieses ist dadurch erreicht, daß ein Verbundwerkstoff, wie er bereits oben genannt ist. die äußere Schicht bildet.Density is present in the outer part of the body of revolution that is particularly stressed by the centrifugal force: this is achieved in that a composite material like him is already mentioned above. forms the outer layer.
Diesem äußeren Teil des Verbundkörper ist ein zweiter, innerer Teil fugenlos eingebracht, der aus reinem Metall besteht und somit erheblich höhere axiale Zugspannungen aufnehmen kann als die Schicht aus Verbundmaterial, deren Fasern im wesentlichen in tangentialer Richtung verlaufen müssen. Hierbei nehmen bei hoher Drehzahl die Fasern die Zcntrifugallast der inneren Schicht auf. die sich hierbei eng an die äußere anlegt und dadurch bei Biegeschwingungen die äußere Schicht stützt. Bei axialen Zugspannungen stützt die irnere Schicht die äußere und verhindert deren Dehnung über die Schadensgrenze hinaus, wobei durch das enge Anliegen der beiden Schkhlen eine sichere Verbindung zwischen ihnen .vwährleistet :--t.To this outer part of the composite body, a second, inner part is seamlessly incorporated, which consists of pure metal and can thus absorb considerably higher axial tensile stresses than the layer of composite material, the fibers of which must run essentially in a tangential direction. At high speed, the fibers absorb the centrifugal load of the inner layer. which is in close contact with the outer layer and thus supports the outer layer in the event of flexural vibrations. In the case of axial tensile stresses, the inner layer supports the outer layer and prevents it from stretching beyond the damage limit, whereby the close fit of the two cavities ensures a secure connection between them : --t.
Um aber auch be. niedrigen Drehzahlen ein Verschieben der inneren Schicht gegenüber der äußeren 7u \ erhindern, empfiehlt es sich. zwischen beiden Schichten eine radiale Vorspannung \orzjsehen. d. h. die äußere Schicht auf die inner aufzuschrumpfen. Da man sich hierzu gewöhnlich thermischer Verfahren bedient. Ment die Erfindung weiterhin vor. fur die innere Schicht ein Metall zu verwenden, dessen Wärmeausdehnungskoeffizient gleich groß oder größer ist als der des Matnxmetalls der äußeren Schicht. Kommt es nämlich bei dem Ineina.iderbringen der beiden hohlzvlindrischen Schichten zu einem Wärmeausgleich, dann wird sich beim Abkühlen die innere Schicht nicht weniger verkürzen als die äußere. es wird also von vornherein ein schädliches axiales Vorspannen der äußeren Schicht verhindert. Ein Nachlassen der radialen Vorspannung wird hierbei auch bei geringer Drehzahl durch die au·· der Fliehkraft resultierende Andruckkraft ausgeglichen.But to also be. low speeds a shift the inner layer versus the outer 7u \ alleviate, it is advisable. between the two Layers show a radial prestress. d. H. Shrink the outer layer onto the inner. Since this is usually done using thermal processes served. Ment continued the invention. for the inner layer to use a metal whose coefficient of thermal expansion is equal to or greater is than that of the matnxmetals of the outer layer. If it comes to bringing the two hollow-cylindrical layers to a heat balance, then when it cools down the inner Shorten the layer no less than the outer one. so it becomes a harmful axial from the start Pre-tensioning the outer layer prevented. A decrease in the radial preload is achieved here even at low speed due to the centrifugal force resulting pressure force balanced.
A1S Material dient für die innere Schicht eines der Metalle, wie es als Matrix der äußeren Schicht dieni. Hierdurch, insbesondere aber bei Verwendung des gleichen Materials für Martix und innere Schicht, ergibt sich der Vorteil, daß insbesondere durch thermische Behandlung eine innige Verbindung /wischen äußerer und innerer Schicht hergestellt wird, wodurch Ablosungserscheinungen verhindert werden.A 1 S material is used for the inner layer of one of the metals as it serves as the matrix of the outer layer. This, but especially when using the same material for the matrix and inner layer, has the advantage that an intimate connection / between the outer and inner layer is created, in particular through thermal treatment, which prevents any signs of detachment.
In einer weiteren Ausgestaltung der Erfindung wird der erfindungsgemäße Verbundkörper durch Schleudergießen hergestellt, wobei das zu vergießende Metall mit Hilfe eines rotierenden oder feststehenden. in der Achse einer rotierenden Kokille liegenden Gießvorrichtung auf die an der Kokilleninnenwand liegenden endlosen Fasern. Stapelfasern oder Fasermatten gegossen wird und wobei anschließend auch die mit dem Matrixmeiall getränkte faserverstärkte Schicht eine zweite Schicht aus einem Metall aufgegossen wird, das einen gleich großen oder größeren Wärmeausdehnungskoeffizienten als das Matrixmetall besitzt, indem die Rotation der Kokille so lange aufrechterhalten wird, bis sich das Metall der inneren Schicht verfestigt hat. Es ermöglicht dieses Verfahren, die Fasern in der Gußtrommel in optimaler Weise anzuordnen und dann anschließend das Matrixmetall lunkerfrei und mit gleichmäßiger Schichtdicke auf die Fasern aufzutragen.In a further embodiment of the invention, the composite body according to the invention is through Centrifugal casting is made, with the metal to be cast using a rotating or stationary. Lying in the axis of a rotating mold casting device on the inside wall of the mold lying endless fibers. Staple fibers or fiber mats is poured and then the fiber-reinforced layer impregnated with the matrix metal is also a second layer made of a metal is poured, which has an equal or greater coefficient of thermal expansion than that Matrix metal possesses by the rotation of the mold is maintained until the metal of the inner layer has solidified. It makes this possible Method of arranging the fibers in the casting drum in an optimal way and then subsequently that Apply matrix metal to the fibers without voids and with an even layer thickness.
Während das Metall der inneren Schicht aufgetragen wird, ist das Matrixmetall bereits so weit erstarrt, daß es zwar noch die Bildung einer Diffusionszone zwischen den beiden Schichten gestattet, aber dem Druck der erkaltenden und sich verkürzenden inneren "schicht standhält, so daß sich in axialer Richtung in der äußeren Schicht eine hohe Druckspannung, in der inneren Schicht eine hohe Zugspannung ausbildet. Die Größenordnung dieser Spannung ist von Gkßacschwindigkeit. Art der Schmelzen. Material der Kokillenwand und von deren Dicke abhängig und über diese genannten Einflußgroßen derart beherrschbar, daß eine so große Vorspannung, gewählt werden kann, die bei Transversalauslenkungen des fertiger, Gußkörpers in der äußeren Schicht um Druck-Schwellspannungen, in der inneren Schicht nur Zug-Schwellspannungen aufkommen läßt. Es ist hiermit nicht nur das Erreichen schädlicher Zugspannung in der äußeren Schicht \ erhindert, es entfällt darüber hinaus die besonders schnell zu Dauorschäden führende Wechselbcanspruchung. in beiden Schichten. Um radiale Vorspanningen in günstiger Richtung zu erhalten, wird die schnelle Rotation der Kokille bis zum endgültigen Erkalten der inneren Schicht weitergeführt, wobei diese Schicht in Kraftrichtung verfestigt, also radial nach außen plastisch verformt und gegen die äußere Schicht gepreßt wird, so daß nach dem Erkalten in radialer Richtung ein Spannungszustand geschaffen wird, wie er sich sonst erst bei höherer Drehzahl des kragen Gußkörpers einstellen würde. Hier werden nicht nur Ablösungserscheinungen verhindert, die bei z.B. Torsionsschwingungen auftreten würden, sondern auch Einstülpungen bei transversalen Ablenkungen des langsam umlaufenden GuCkörpers und Umwandeln aller auftretenden radialen Wechselspannungen.While the metal of the inner layer is being applied, the matrix metal has already solidified to the point that that it still allows the formation of a diffusion zone between the two layers, but that Pressure of the cooling and shortening inner "layer withstands, so that in the axial direction high compressive stress in the outer layer and high tensile stress in the inner layer. The order of magnitude of this tension is speed. Type of melting. material the mold wall and its thickness depends and can be controlled using these influencing variables in such a way that such a large preload is selected can be that in the case of transverse deflections of the finished, cast body in the outer layer Pressure surge tensions, in the inner layer only allows tension threshold voltages to arise. This is not just about achieving harmful tensile stress in the outer layer \ reduced, it is omitted In addition, alternate claims, which can quickly lead to permanent damage. in both Layers. To get radial preloads in a favorable direction, the rapid rotation of the Mold continued until the inner layer has finally cooled, this layer in the direction of force solidified, i.e. plastically deformed radially outwards and pressed against the outer layer, so that after cooling in the radial direction a state of tension is created, as it would otherwise only at a higher speed of the collar cast body would hire. This not only prevents the detachment phenomena caused by e.g. torsional vibrations would occur, but also invaginations in the case of transverse deflections of the slow rotating GuCkörpers and converting all occurring radial alternating voltages.
Es ist bei Anwendung des genannten Verfahrens vorteilhaft, in die Gußtrommel vor dem Gießen ein mit Faserwerkstoff belegtes und aus Matrixmaterial bestehendes Gerüst einzubringen. Hierdurch können die Fasern in dem späteren Spannungsverlauf entsprechenden Mustern angeordnet und während des Anfahreiis der Gußtrommel in ihrer Stellung festgehalten werden, bis Fliehkraft und flüssiges Matrixmaterial ein Verrutschen der Fasern verhindern: das Traggerüst wird dann mit dem Matrixmaterial homogen verschmolzen.When using the method mentioned, it is advantageous to insert it into the casting drum before casting to introduce a framework covered with fiber material and consisting of matrix material. This allows the fibers arranged in the later stress curve corresponding patterns and during the Start up the casting drum and hold it in place until centrifugal force and liquid matrix material Prevent the fibers from slipping: the supporting structure then becomes homogeneous with the matrix material merged.
Claims (2)
ineinander übergehenden Schichten, ge kenn- Da ein derartiger faserverstärkter Werkstoff seine zeichnet diTrch die Kombination" folgender hohe Festigkeit nur bei Zugbelastung in Faserrich-Merkmale: tung beibehält, bei Druckbelastung in Faserrichtung1. Rotationally symmetrical, hollow composite is used, while metals on Nik bodies are used as a matrix. consisting of two also rotational 5 kel. Cobalt-. Titanium or aluminum bases serve symmetrical, seamlessly arranged one inside the other (VDI-Zeitsehrift 112, 1970. 20. S. 1390 to 1392).
Because such a fiber-reinforced material is characterized by the combination of "the following high strength only when subjected to tensile stress in the fiber direction, it maintains the following layers
bei anschließend auf die mit dem Matrixmetall 35 Zu; Herstellung rotationssymmetrischer Verbund getränkte faserverstärkte Schicht eine /weite körper ist es bekannt. Glas-Stapelfasern. Giasmatten Schicht aus einem Metall aufgegossen wird, das oder Glasgewebe in eine rotierende Schleuderform einen gieich großen oder größeren Wärmeaus- einzubringen und auf diesen Fasenverkstoff im dcinuniiskoeffizienten als das Matrixmetall be- Schleudergußverfahren einen flüssigen Kunststoff sitzt, dadurch gekennzeichnet, daß die Rotation 4= aufzubringen (Becker. Schmitz. Weber: der Kokille so lange aufrechterhalten wird, bis »Das Schleudergießen von Kunststoffen . C. Hansasich das Metall der inneren Schicht verfestigt hat. Verlag. München I95R. S. 58 bis 71).2. Process for producing a rotation · ^ - the case with tensile stresses: Here the solid symmetrical composite body according to claim 1 association of fibers is stretched apart, so that the by centrifugal casting, the stress to be cast only from between the fibers beMetall mit HiIu one rotating or fixed matrix material are included. in Oh ^ e a rotating mold, since the fibers themselves subject to stress, the casting apparatus lying on the ingot mold on the one muli ie either on the fibers completely Verl inner wall lying endless fibers. Staple-drawn, the fiber material is poured through axially parallel warp fibers or fiber mats and loads the threads or causes fatigue breaks in K'uf,
at then on with the matrix metal 35 to; It is known to produce a rotationally symmetrical composite of an impregnated fiber-reinforced layer a / wide body. Glass staple fibers. A layer of a metal is poured onto the glass mat or glass fabric in a rotating centrifugal mold to bring in an equal or greater heat output and to apply a liquid plastic to this fiber material in the dcinunis coefficient as the matrix metal. Becker, Schmitz, Weber: the mold is maintained until "The centrifugal casting of plastics. C. Hansasich has solidified the metal of the inner layer. Verlag. Munich I95R. Pp. 58 to 71).
zwei ebenfalls rotationssymmetrischen, ineinander Zur l.ösune der Aufgabe wird erfindungsgemäß angeordneten fugenlos ineinander übergehenden 50 die Kombination folgender Merkmale vor^eschlaaen: Schichten und ein Verfahren zu seiner Herstellung a) Die inncrc Sch-cht bestcht im wesentlichen^au.sThe invention relates to a rotationally symmetrical tensile stress, as it is from Transver. alschwinmetrischen, hollow composite body, consisting of gung resulting, has grown.
two likewise rotationally symmetrical, one inside the other. In order to solve the problem, according to the invention, the combination of the following features is proposed: Layers and a method for their production a) The inner layer is essentially impressive
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2118848A DE2118848C3 (en) | 1971-04-19 | 1971-04-19 | Rotationally symmetric, hollow composite body and process for its manufacture |
AT313772A AT323915B (en) | 1971-04-19 | 1972-04-11 | ROTARY, HOLLOW COMPOSITE BODY AND PROCESS FOR ITS MANUFACTURING |
DK186472A DK141355C (en) | 1971-04-19 | 1972-04-17 | Rotationally symmetrical, hollow, fiber-reinforced composite bodies and methods of manufacture thereof |
BE782239A BE782239A (en) | 1971-04-19 | 1972-04-17 | METHOD AND DEVICE FOR MANUFACTURING A SYMMETRICAL COMPOSITE ENROTATION ELEMENT |
NO1340/72A NO130892C (en) | 1971-04-19 | 1972-04-18 | |
NL7205164.A NL162003C (en) | 1971-04-19 | 1972-04-18 | ROTATION SYMMETRICAL HOLLOW COMPOSITE BODY AND METHOD FOR MANUFACTURING SUCH BODY. |
CH572072A CH566831A5 (en) | 1971-04-19 | 1972-04-18 | |
FR7213593A FR2133852B1 (en) | 1971-04-19 | 1972-04-18 | |
FI1103/72A FI52939C (en) | 1971-04-19 | 1972-04-19 | |
JP3950072A JPS5516750B1 (en) | 1971-04-19 | 1972-04-19 | |
SE7205126A SE387874B (en) | 1971-04-19 | 1972-04-19 | ROTATION SYMMETRIC HOLY COMPOSITE BODY AND SET FOR ITS PREPARATION |
US00245575A US3849080A (en) | 1971-04-19 | 1972-04-19 | Rotationally symmetrical hollow compound body |
GB1821872A GB1393989A (en) | 1971-04-19 | 1972-04-19 | Methods of manufacturing rotationally symmetrical hollow composite bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2118848A DE2118848C3 (en) | 1971-04-19 | 1971-04-19 | Rotationally symmetric, hollow composite body and process for its manufacture |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2118848A1 DE2118848A1 (en) | 1972-11-02 |
DE2118848B2 true DE2118848B2 (en) | 1973-06-20 |
DE2118848C3 DE2118848C3 (en) | 1974-01-17 |
Family
ID=5805092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2118848A Expired DE2118848C3 (en) | 1971-04-19 | 1971-04-19 | Rotationally symmetric, hollow composite body and process for its manufacture |
Country Status (13)
Country | Link |
---|---|
US (1) | US3849080A (en) |
JP (1) | JPS5516750B1 (en) |
AT (1) | AT323915B (en) |
BE (1) | BE782239A (en) |
CH (1) | CH566831A5 (en) |
DE (1) | DE2118848C3 (en) |
DK (1) | DK141355C (en) |
FI (1) | FI52939C (en) |
FR (1) | FR2133852B1 (en) |
GB (1) | GB1393989A (en) |
NL (1) | NL162003C (en) |
NO (1) | NO130892C (en) |
SE (1) | SE387874B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2701421A1 (en) * | 1976-01-16 | 1977-07-28 | Honda Motor Co Ltd | Fibre-reinforced composite body prodn. - comprising aluminium-silicon alloy matrix, with reinforcing fibres, bonded to fibre-free part by casting |
DE3030871A1 (en) * | 1979-08-17 | 1981-03-19 | Art Kinzoku Kogyo K.K., Tokyo | METHOD FOR PRODUCING A FIBER REINFORCED COMPOSITE OBJECT |
EP0027502A1 (en) * | 1979-08-27 | 1981-04-29 | Allied Corporation | Composite shell formed of glassy metal alloy strips |
DE2929217A1 (en) * | 1979-07-19 | 1983-12-01 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | ROTATION-SYMMETRICAL HOLLOW COMPOSITE BODY |
DE19642018A1 (en) * | 1995-10-13 | 1997-04-17 | Tochigi Fuji Sangyo Kk | Method of manufacturing a screw rotor |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2523074A1 (en) * | 1975-05-24 | 1976-12-02 | Christensen Diamond Prod Co | PROCESS AND EQUIPMENT FOR MANUFACTURING WEAR-RESISTANT BODIES, IN PARTICULAR FOR DEEP DRILLING TECHNOLOGY |
US4834693A (en) * | 1980-06-26 | 1989-05-30 | Avco Corporation | Hybrid drive shaft |
AU554140B2 (en) * | 1980-07-02 | 1986-08-07 | Dana Corporation | Thermally insulating coating on piston head |
JPS5893813U (en) * | 1981-12-18 | 1983-06-25 | トキコ株式会社 | turbine meter |
DE3478035D1 (en) * | 1984-01-27 | 1989-06-08 | Chugai Ro Kogyo Kaisha Ltd | Fiber reinforced metal alloy and method for the manufacture thereof |
GB8518909D0 (en) * | 1985-07-26 | 1985-09-04 | Ae Plc | Engineering components |
US4816347A (en) * | 1987-05-29 | 1989-03-28 | Avco Lycoming/Subsidiary Of Textron, Inc. | Hybrid titanium alloy matrix composites |
GB2222793A (en) * | 1988-09-16 | 1990-03-21 | British Aerospace | "Method of forming a fibre reinforced material" |
JP3179812B2 (en) * | 1991-09-17 | 2001-06-25 | トーカロ株式会社 | Carbon member having metal spray coating layer with excellent adhesion |
GB9413631D0 (en) * | 1994-07-06 | 1994-09-14 | Inco Engineered Prod Ltd | Manufacture of forged components |
DE19737601A1 (en) * | 1997-08-28 | 1999-03-04 | Bayerische Motoren Werke Ag | Process for increasing the damping of a cast component made of a light metal material |
WO2002001311A1 (en) * | 2000-06-27 | 2002-01-03 | Board Of Trustees Of The Leland Stanford Junior University | Composite rotors for flywheels and methods of fabrication thereof |
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US11510283B2 (en) | 2019-05-14 | 2022-11-22 | Intel Corporation | WLAN sensing using high-efficiency (HE) trigger- based (TB) PPDUs (HE TB PPDUs) |
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Publication number | Priority date | Publication date | Assignee | Title |
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US1280909A (en) * | 1916-02-05 | 1918-10-08 | Metalco Company | Manufacture of pipes. |
US2197916A (en) * | 1937-01-27 | 1940-04-23 | Detroit Gasket & Mfg Company | Gasket |
US3427185A (en) * | 1964-02-19 | 1969-02-11 | United Aircraft Corp | Composite structural material incorporating metallic filaments in a matrix,and method of manufacture |
US3419952A (en) * | 1966-09-12 | 1969-01-07 | Gen Electric | Method for making composite material |
NL6912700A (en) * | 1968-08-22 | 1970-02-24 | ||
US3575783A (en) * | 1968-11-13 | 1971-04-20 | United Aircraft Corp | Unidirectional fiber reinforced metal matrix tape |
US3608170A (en) * | 1969-04-14 | 1971-09-28 | Abex Corp | Metal impregnated composite casting method |
-
1971
- 1971-04-19 DE DE2118848A patent/DE2118848C3/en not_active Expired
-
1972
- 1972-04-11 AT AT313772A patent/AT323915B/en not_active IP Right Cessation
- 1972-04-17 DK DK186472A patent/DK141355C/en active
- 1972-04-17 BE BE782239A patent/BE782239A/en unknown
- 1972-04-18 FR FR7213593A patent/FR2133852B1/fr not_active Expired
- 1972-04-18 CH CH572072A patent/CH566831A5/xx not_active IP Right Cessation
- 1972-04-18 NL NL7205164.A patent/NL162003C/en not_active IP Right Cessation
- 1972-04-18 NO NO1340/72A patent/NO130892C/no unknown
- 1972-04-19 SE SE7205126A patent/SE387874B/en unknown
- 1972-04-19 JP JP3950072A patent/JPS5516750B1/ja active Pending
- 1972-04-19 GB GB1821872A patent/GB1393989A/en not_active Expired
- 1972-04-19 US US00245575A patent/US3849080A/en not_active Expired - Lifetime
- 1972-04-19 FI FI1103/72A patent/FI52939C/fi active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2701421A1 (en) * | 1976-01-16 | 1977-07-28 | Honda Motor Co Ltd | Fibre-reinforced composite body prodn. - comprising aluminium-silicon alloy matrix, with reinforcing fibres, bonded to fibre-free part by casting |
DE2929217A1 (en) * | 1979-07-19 | 1983-12-01 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | ROTATION-SYMMETRICAL HOLLOW COMPOSITE BODY |
DE3030871A1 (en) * | 1979-08-17 | 1981-03-19 | Art Kinzoku Kogyo K.K., Tokyo | METHOD FOR PRODUCING A FIBER REINFORCED COMPOSITE OBJECT |
EP0027502A1 (en) * | 1979-08-27 | 1981-04-29 | Allied Corporation | Composite shell formed of glassy metal alloy strips |
DE19642018A1 (en) * | 1995-10-13 | 1997-04-17 | Tochigi Fuji Sangyo Kk | Method of manufacturing a screw rotor |
DE19642018C2 (en) * | 1995-10-13 | 2000-10-26 | Tochigi Fuji Sangyo Kk | Method of manufacturing a screw rotor |
Also Published As
Publication number | Publication date |
---|---|
JPS5516750B1 (en) | 1980-05-06 |
FI52939B (en) | 1977-09-30 |
CH566831A5 (en) | 1975-09-30 |
GB1393989A (en) | 1975-05-14 |
US3849080A (en) | 1974-11-19 |
AT323915B (en) | 1975-08-11 |
SE387874B (en) | 1976-09-20 |
BE782239A (en) | 1972-08-16 |
NL162003C (en) | 1980-04-15 |
FR2133852B1 (en) | 1976-10-29 |
FI52939C (en) | 1978-01-10 |
DE2118848C3 (en) | 1974-01-17 |
NL162003B (en) | 1979-11-15 |
DK141355C (en) | 1980-08-18 |
NL7205164A (en) | 1972-10-23 |
NO130892C (en) | 1975-03-05 |
DK141355B (en) | 1980-03-03 |
NO130892B (en) | 1974-11-25 |
DE2118848A1 (en) | 1972-11-02 |
FR2133852A1 (en) | 1972-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: M.A.N. MASCHINENFABRIK AUGSBURG-NUERNBERG AG, 8000 |
|
8339 | Ceased/non-payment of the annual fee |