DE1038707B - Process for the production of wings for gyroscopes - Google Patents

Process for the production of wings for gyroscopes

Info

Publication number
DE1038707B
DE1038707B DEV12798A DEV0012798A DE1038707B DE 1038707 B DE1038707 B DE 1038707B DE V12798 A DEV12798 A DE V12798A DE V0012798 A DEV0012798 A DE V0012798A DE 1038707 B DE1038707 B DE 1038707B
Authority
DE
Germany
Prior art keywords
wing
layers
foils
filling material
way
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
Application number
DEV12798A
Other languages
German (de)
Inventor
Dr-Ing Costa Vasiljevic
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COSTA VASILJEVIC DR ING
Original Assignee
COSTA VASILJEVIC DR ING
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by COSTA VASILJEVIC DR ING filed Critical COSTA VASILJEVIC DR ING
Priority to DEV12798A priority Critical patent/DE1038707B/en
Priority to GB28594/57A priority patent/GB871066A/en
Publication of DE1038707B publication Critical patent/DE1038707B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
    • 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
    • B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/345—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/20—Constructional features
    • B64C11/26—Fabricated blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Verfahren zur Herstellung von Flügeln für Kreiselräder Zusatz zum Patent 954 636 Die Erfindung hetrifft ein Verfahren zur Herstellung von Flügeln für Kreiselräder, Pumpen, Gebläse od. dgl. und zeigt eine Weiterbildung dessen, was in dem deutschen Patent 954636 unter Schutz gestellt ist. Das in dem Hauptpatent geschützte Verfahren zur Herstellung von Flügeln für Kreiselräder, Pumpen, Gebläse od. dgl., insbesondere für Axialräder mit einer die Flügelbefestigung bildenden Metallseele, kennzeichnet sich darin, daß vorher zugeschnittene, mit Kunstharz getränkte Holz folien in einer der gewünschen Flügelfertigform entsprechenden Pressform um die Metallseele herumgeschichtet und anschließend unter Druck- und Wärmezufuhr zu dem den fertigen Flügel bildenden Körper verpreßt werden. Die Weiterbildung des Verfahrens befaßt sich mit der Erzielung einer besonderen Festigkeit des Flügels an den Stellen des Flügelkörpers, die einer stärkeren Beanspruchung unterworfen sind. Process for the production of blades for gyro wheels addition to U.S. Patent 954,636 The invention relates to a method of making wings for impellers, pumps, blowers or the like and shows a further development of which is placed under protection in the German patent 954636. That in the main patent Protected process for the production of blades for centrifugal wheels, pumps, fans Od. Like., In particular for axial gears with a wing attachment forming Metal core, is characterized by the fact that it is previously cut and soaked with synthetic resin Wood foils in a press mold corresponding to the desired finished wing shape the metal core is layered around and then closed under pressure and heat pressed against the body forming the finished wing. The further training of the Process is concerned with achieving a particular strength of the wing at the points of the wing body that are subjected to greater stress are.

Dies wird dadurch erreicht, daß an den betreffenden Stellen mehr Füllmaterial in die Preßform eingeschichtet wird, so daß hier infolge der Materialanhäufung eine stärkere Verdichtung bei der Verpressung erzielt wird. This is achieved by adding more at the relevant points Filler material is layered in the mold, so that here as a result of the accumulation of material a stronger compression is achieved during the pressing.

Erfindungsgemäß erfolgt ein stärkeres Übereinanderschichten größerer Mengen Füllmaterials, wie in Kunstharz getränkter Folien, Fasern, Gewebe in die Preßform an den Flügelbereichen, die der größeren Beanspruchung standzuhalten haben. Zweckmäßigerweise erfolgt die Einschichtung so, daß am Flügel fuß sich vor der Pressung größere Füllmaterialmengen befinden und bei der Verpressung der Verdichtungsgrad von der Flügelspitze aus nach dem Flügel fuß linear zunimmt. According to the invention, a stronger layering takes place, larger ones Amount of filler material, such as foils, fibers, fabrics soaked in synthetic resin in the Mold on the wing areas that have to withstand the greater stress. Appropriately, the stratification takes place so that the wing foot before pressing larger amounts of filling material are located and the degree of compression during compression increases linearly from the wing tip to the wing foot.

Die Größe der in die Preßform einzuschichtenden Füllmaterialfolien oder Lagen kann verschieden sein. The size of the filler sheets to be coated in the mold or locations can be different.

An den Stellen, an denen der größere Verdichtungsgrad erwünscht wird, gelangt eine größere Anzahl flächenmäßig kleinerer Lagen oder Folien übereinander zur Anwendung, die zweckmäßigerweise durch größere Folien oder Lagen abgedeckt werden.In those places where the greater degree of compaction is desired, If a larger number of layers or foils with a smaller area reach one another for use, which are expediently covered by larger foils or layers.

Mit besonderem Vorteil lassen sich als Füllmaterial für den Flügel getränkte Faserbündel, wie z. B. Gewebefasern oder Glaswollelagen oder ähnliches verwenden. Dabei kann die Einschichtung in der Weise erfolgen, daß die Fasermaterialien mit ihrer Faserrichtung in Richtung der Beanspruchung verlaufen. Es können aber auch Faserpakete oder -bündel übereinandergeschichtet werden, die mit ihrer Faserrichtung sich kreuzen. Can be used as a filling material for the wing with particular advantage soaked fiber bundles, such as. B. fabric fibers or glass wool layers or the like use. The stratification can be done in such a way that the fiber materials run with their fiber direction in the direction of the stress. But it can also fiber packages or bundles are layered one on top of the other, with their fiber direction cross each other.

Der Erfindungsgedanke läßt verschiedene konkrete Ausführungsmöglichkeiten zu. Einige davon sind in der Zeichnung wiedergegeben, und zwar zeigt Fig. 1 eine schematische Draufsicht auf einen Flügel und Fig. 2 einen Schnitt nach den Linien a-b durch Fig. 1 in vergrößertem Maßstab. The idea of the invention allows various concrete implementation possibilities to. Some of these are shown in the drawing, namely Fig. 1 shows a a schematic plan view of a wing and FIG. 2 a section along the lines a-b through Fig. 1 on an enlarged scale.

Bei dem erfindungsgemäßen Verfahren werden mit Kunstharz, beispielsweise Phenolharz, oder sonstigen härtenden Harzen behandelte Füllkörper, wie Folien aus Holz oder Gewebe, Faserbündel oder Glaswollelagen, in den Formunterteil eingebettet. Die Einschichtung dieses Materials erfolgt in der Weise, daß an den Stellen, an denen der Flügel während des Betriebes einer größeren Beanspruchung unterworfen ist, eine größere Menge von Füllmaterialien übereinandergeschichtet wird. Die Unterform ist also an diesen Stellen stärker mit Füllmaterial gefüllt. Dies lassen die Fig. 1 und 2 deutlich erkennen. Der fertige Flügel 1 ist so aufgebaut, daß beispielsweise im Bereich des Flügel fusses und da wieder um die eingebettete Metallseele 2 herum eine größere Anzahl einzelner Füllmateriallagen 3, Folien od. dgl. übereinandergepackt sind. Dabei können die einzelnen Folaien 3 oder Lagen, wie es Fig. 1 deutlich erkennen läßt, verschieden große Umrißform aufweisen. Sie sind so zugeschnitten, daß sie die Flügelform an bestimmten Stellen nicht vollständig ausfüllen. Sie werden dann durch weiter außen liegende größere Folien oder Lagen, die sich der Flügelabmessung weitgehend nähern, abgedeckt werden, so daß also die außenliegenden Schichten nahezu über die Flügeloberfläche durchgehen und eine stoßfreie glatte Flügelaußenseite ergeben. In the method according to the invention with synthetic resin, for example Phenolic resin, or other hardening resins treated fillers, such as foils Wood or fabric, fiber bundles or glass wool layers, embedded in the lower part of the mold. The stratification of this material takes place in such a way that at the points at which the wing is subjected to greater stress during operation is, a larger amount of filler material is stacked on top of each other. The lower form is therefore more heavily filled with filling material at these points. This can be seen in Fig. 1 and 2 can be seen clearly. The finished wing 1 is constructed so that, for example in the area of the wing base and there again around the embedded metal core 2 a larger number of individual layers of filling material 3, foils or the like. Packed one on top of the other are. The individual foils 3 or layers can be seen clearly in FIG. 1 can have different sizes of outline. They are tailored so that they can not completely fill the wing shape in certain places. You will then through larger foils or layers that are located further outside, which are different from the wing dimensions largely approach, are covered, so that the outer layers almost pass over the wing surface and a smooth, smooth wing outside result.

Die Fig. 2 läßt dabei auch deutlich erkennen, daß die einzelnen Lagen oder Folien infolge zahlenmäßig starker Übereinanderschichtung an bestimmten Stellen des Flügels stärker verpreßt sind. FIG. 2 clearly shows that the individual layers or foils due to large numbers of layers on top of each other at certain points of the wing are pressed more strongly.

Beim Einschichten der Füllmateriallagen kann man dabei so verfahren, daß die Faserrichtung des Füllmaterials, seien es nun Holzfolien oder Faserbündel oder Glaswollelagen oder ähnliches, in Richtung der Beanspruchung des Fertigflügels verläuft. Mal kann aber auch das Einschichten so vornehmen, daß die Faserrichtung der einzelnen Lagen sich kreuzt. When layering the filling material layers, one can proceed as follows: that the fiber direction of the filling material, be it wood foils or fiber bundles or layers of glass wool or the like, in the direction of the stress on the finished wing runs. Sometimes, however, the stratification can also be carried out in such a way that the grain direction of the individual layers crosses.

Claims (6)

PATENTANSPRÜCHE: 1. Verfahren zur Herstellung von Flügeln für Kreiselräder, Pumpen, Gebläse od. dgl., insbesondere Axialräder, nach dem deutschen Patent 954 636. dadurch gekennzeichnet, daß durch stelleu'reises stärkeres Übereinanderschichten größerer LIengen Füllmaterials, wie in Kunstharz (Phenolharz oder sonstige härtende Harze) getränkter Folien, Fasern, Gewebe in die Preßform in bestimmten Flügelbereichen, die einer größeren Beanspruchung unterworfen sind, eine stärkere Verdichtung des Flügelkörpers herbeigefüllrt wird. PATENT CLAIMS: 1. Process for the production of blades for gyroscopes, Pumps, fans or the like, in particular axial gears, according to German Patent 954 636. characterized in that, by virtue of being placed more strongly on top of each other Larger lengths of filler material, such as in synthetic resin (phenolic resin or other hardening Resins) impregnated foils, fibers, fabrics into the mold in certain wing areas, which are subjected to greater stress, a greater compression of the Wing body is brought here. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die stärkere Einschichtung des Füllmaterials am Flügelfuß in der Weise erfolgt, daß bei der Pressung der Verdichtungsgrad des Materials von der Flügelspitze nach dem Flügelfuß zu linear zunimmt. 2. The method according to claim 1, characterized in that the stronger Layering of the filling material on the wing root takes place in such a way that during the pressing the degree of compaction of the Material from the wing tip to the wing root too linear increases. 3. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Größe der in die Preßform einzuschichtenden Füllmaterialfolien oder -lagen verschieden ist und an den Stellen, an denen ein größerer Verdichtungsgrad erwünscht wird, eine größere Anzahl flächenmäßig kleinerer Lagen oder Folien übereinandergelegt und mit größeren Lagen abgedeckt wird. 3. The method according to claim 1 and 2, characterized in that the Size of the filling material foils or layers to be layered in the compression mold is different is and at the points where a greater degree of compaction is desired, a larger number of smaller layers or foils placed on top of each other and with larger layers is covered. 4. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die den Flügel bildenden Füllmaterialschichten aus mit Kunstharz od. dgl. behandelten Glaswollelagen oder Glaswol lepaketen gebildet sind. 4. The method according to claim 1 to 3, characterized in that the the wing forming layers of filler material made of synthetic resin or the like. Treated Glaswollelagen or Glaswol lepaketen are formed. 5. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Einschichtung des Füllmaterials in der Weise erfolgt, daß die Faserrichtung des Materials in Richtung der Flügelbeanspruchung verläuft. 5. The method according to claim 1 to 3, characterized in that the Layering of the filling material takes place in such a way that the fiber direction of the Material runs in the direction of the wing loading. 6. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Einschichtung des Füllmaterials so erfolgt, daß sich die Faserrichtung der einzelnen Schichten oder Lagen mit denen benachbarter Schichten kreuzt. 6. The method according to claim 1 to 4, characterized in that the The filling material is layered in such a way that the fiber direction of the individual Layers or plies crosses with those of adjacent layers.
DEV12798A 1957-07-20 1957-07-20 Process for the production of wings for gyroscopes Pending DE1038707B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEV12798A DE1038707B (en) 1957-07-20 1957-07-20 Process for the production of wings for gyroscopes
GB28594/57A GB871066A (en) 1957-07-20 1957-09-11 Improvements in or relating to a method for the production of impeller and like blades, and a blade produced in accordance with this method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEV12798A DE1038707B (en) 1957-07-20 1957-07-20 Process for the production of wings for gyroscopes
GB28594/57A GB871066A (en) 1957-07-20 1957-09-11 Improvements in or relating to a method for the production of impeller and like blades, and a blade produced in accordance with this method

Publications (1)

Publication Number Publication Date
DE1038707B true DE1038707B (en) 1958-09-11

Family

ID=26001270

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV12798A Pending DE1038707B (en) 1957-07-20 1957-07-20 Process for the production of wings for gyroscopes

Country Status (2)

Country Link
DE (1) DE1038707B (en)
GB (1) GB871066A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541718A1 (en) * 1990-07-27 1993-05-19 Marley Cooling Tower Co Plastic fan blade for industrial cooling towers and method of making same.

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GB1236303A (en) * 1968-04-16 1971-06-23 Blomberger Holsindustrie B Hau Method of producing laminated wood bars
US4741943A (en) * 1985-12-30 1988-05-03 The Boeing Company Aerodynamic structures of composite construction
CN1042692A (en) * 1988-11-14 1990-06-06 通用电气公司 The properller leaf of counter-rotating
GB0428201D0 (en) 2004-12-22 2005-01-26 Rolls Royce Plc A composite blade
US9777579B2 (en) * 2012-12-10 2017-10-03 General Electric Company Attachment of composite article
US9797257B2 (en) 2012-12-10 2017-10-24 General Electric Company Attachment of composite article
GB201803802D0 (en) * 2018-03-09 2018-04-25 Rolls Royce Plc Composite fan blade and manufacturing method thereof
CN110815859B (en) * 2019-11-29 2022-03-29 株洲时代新材料科技股份有限公司 Design and manufacturing method of composite material blade and composite material blade
CN113104210B (en) * 2021-05-19 2022-02-01 清华大学 Rotor blade integrally formed by three-dimensional woven composite material and manufacturing method
CN114559680B (en) * 2022-01-27 2024-08-13 武汉海威船舶与海洋工程科技有限公司 Forming die and forming method for ship propeller composite material blade autoclave

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541718A1 (en) * 1990-07-27 1993-05-19 Marley Cooling Tower Co Plastic fan blade for industrial cooling towers and method of making same.
EP0541718A4 (en) * 1990-07-27 1993-06-30 The Marley Cooling Tower Company Plastic fan blade for industrial cooling towers and method of making same

Also Published As

Publication number Publication date
GB871066A (en) 1961-06-21

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