DE1806433A1 - Moulding process particularly for composite or - Google Patents

Moulding process particularly for composite or

Info

Publication number
DE1806433A1
DE1806433A1 DE19681806433 DE1806433A DE1806433A1 DE 1806433 A1 DE1806433 A1 DE 1806433A1 DE 19681806433 DE19681806433 DE 19681806433 DE 1806433 A DE1806433 A DE 1806433A DE 1806433 A1 DE1806433 A1 DE 1806433A1
Authority
DE
Germany
Prior art keywords
core
plastic
mold
plastic core
ski
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
DE19681806433
Other languages
German (de)
Inventor
Rudolf Heller
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.)
Rheinmetall Air Defence AG
Original Assignee
Oerlikon Contraves AG
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 Oerlikon Contraves AG filed Critical Oerlikon Contraves AG
Publication of DE1806433A1 publication Critical patent/DE1806433A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
    • B29C44/16—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining shaped by the expansion of the material
    • 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
    • B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
    • B29L2031/5263—Skis

Abstract

Compression moulding of composite or laminated articles, especially skis, having a fibre-reinforced resin exterior (32), (33), (34) and cellular rigid core (31), the special feature of which is that the required moulding pressure is developed by the foaming of the resin of the core (31) when this is heat-hardened. The bottom of the mould (1) is first lined with a resin-impregnated fibre sheet (32) which may have special sliding edges (36), after which the core material (31) is introduced and covered with a further layer (33). Edge protection (34) may be arranged and other layers (32) enclosing the long sides of the core (31). The mould cover is then fixed to the mould, and the whole assembly heated to cause the core (31) to foam and expand.

Description

Verfahren zur Herstellunz eines Preszkörpers und nach dem Verfahren hergestellter Presskörper Die vorliegende L'rfindung bezieht sich auf ein Verfahren zur Herstellung eines Presskörpers, vorzugsweise eines Ski in einer Pressform, wobei der Presskörper mindestens in seinem Kern aus einer zellig strukturierten, aber festen Masse bestehen soll. Ski dieser Art werden üblicherweise so hergestellt, daß in einer Formpresse eingebrachte IIalbfabrikate unter Anwendung von Aussendruck thermisch ausgehärtet und verklebt werden. Es ist auch schon vorgeschlagen worden, in die zu einem Ski zu verbindenden Teile als Kern eine aufblasbare Plastik- oder Oummieinlage einzulegen und den zur Formgebung notwendigen Druck mit zugeführter Druckluft von iimen her zu erzeugen. Diese Lösung hat aber den Nachteil, daß der entstehende Hohlkern in einem weiteren Arbeitsgang mit einem Fülimaterial ausgeschäumt werden muss, was wegen der Dimensionen des Hohlraums schwierig ist. Process for the production of a pressed body and according to the process produced compact The present invention relates to a method for the production of a press body, preferably a ski in a press mold, wherein the pressed body, at least in its core, consists of a cellular structure, but solid mass should exist. Skis of this type are usually made in such a way that that semi-finished products brought into a molding press using external pressure thermally cured and glued. It has also been suggested in the parts to be connected to a ski as a core an inflatable plastic or Insert the Oummieeinlage and apply the pressure necessary for shaping To generate compressed air from iimen. This solution has the disadvantage that the The resulting hollow core is foamed with a filling material in a further operation must be, which is difficult because of the dimensions of the cavity.

Der Erfindung liegt zur Vermeidung dieses Nachteils die Aufgabe zugrunde, ein Verfahren zu schaffen, nach dem insbesondere Ski in einem Arbeitsgang auch unter Erzeugung eines Innendruckes pressgeformt werden können.In order to avoid this disadvantage, the invention is based on the object to create a method according to which, in particular, skis can also be used in one operation Generating an internal pressure can be compression molded.

Das vorliegende Verfahren is-t erfindungsgemäss dadurch gckennzeichnet, daß als Kernmaterial ein plastisch deformierbarer Kunststoff verwendet wird, der die Sigenschaft hat, sich beim thermischen Aushärt en unter beträchtlicher Druckentwicklung aufzublähen und so den zur Formgebung notwendigen Druck von innen her zu erzeugen. Im ausgehärteten Zustand bildc 1; ,.er Kunststoffkern ein zellig strukturiertes, leichtes, aber meche,-nisch festes Material, mit guten schwingungsdämpfenden Eigenschaften. Es ist ohne weiteres möglich, den Kunststoffkern mehrteilig, in Bändern oder Streifen auszulegen und mit verstärkenden Einlagen zu armieren. Das Verfahren ermöglicht es, einen Verbundski in einem einzigen Arbeitsgang herzustellen.According to the invention, the present method is characterized in that that a plastically deformable plastic is used as the core material, the has the property of being thermally cured under considerable pressure development to inflate and thus to generate the pressure necessary for shaping from the inside. In the hardened state fig. 1; , .er plastic core a cellular structured, light but mechanically strong material with good vibration dampening properties. It is easily possible to make the plastic core in several parts, in bands or strips to be laid out and reinforced with reinforcing inserts. The procedure enables it is to produce a composite ski in a single operation.

Solche Ski zeichnen sich durch geringes Gewicht und günstige Torsions- und Biegeeigenschaften aus.Such skis are characterized by their low weight and favorable torsional and bending properties.

Der nach dem erfindungsgemässen Verfahren hergestellte Presskörper, insbesondere Ski, ist dadurch gekennzeichnet, dass zumindest sein Kern aus einer zellig strukturierten IIesse besteht.The pressed body produced by the method according to the invention, in particular skis, is characterized in that at least its core consists of a cell-structured IIesse consists.

Obschon das Verfahren sich im wesentlichen auf die Herstellung eines pressgeformten Slri bezieht, ist es ohne weiteres möglich, das Verfahren der inneren Druckerzeugung mit sich aufbl-ahendem Kunststoff auf die Herstellung irgendwelcher fonagepresster Körper bzw. Verbundkörper anzuwenden.Although the process essentially focuses on the manufacture of a In relation to press-molded Slri, it is readily possible to use the process of internal Pressure generation with inflating plastic on the production of any use pressed body or composite body.

In der Zeichnung ist ein Beispiel für die Ausführung des erfindungsgemässen Herstellungsverfahrens dargestellt.In the drawing is an example of the implementation of the inventive Manufacturing process shown.

Es zeigt: Fig. 1 einen Querschnitt durch die Pressform mit den eingelegten Teilen des Verbundski vor dem thermischen Aushärten der Kernmatte; Pig. 2 einen Querschnitt durch die Pressform mit dem epandierten und ausgehärteten Kernmaterial.It shows: 1 shows a cross section through the compression mold with the inserted parts of the composite ski before the thermal curing of the core mat; Pig. 2 shows a cross section through the compression mold with the epanded and hardened one Core material.

Gemäss Fig. 1 wird in die Hohlform 1, zu der ein Deckel 2 gehört, eine Grundplatte 35 eingelegt, die noch mit einem speziellen Gleitbelag und Kanten 36 versehen sein kann. Auf diese Grundplatte 55 wird ein in seiner Rohform plastisch deformierbarer Kunststoffkern 31 eingelegt, der die Eigenschaft hat, sich beim thermischen Aushärten unter beträchtlicher Druckerzcugung aufzublähen. Solche Kunststoffe sind als Splioe-Schaum (Ciba (ARL) LTD GB) im Handel erhältlich. Der Kunststoffkern 31 ist dabei vorher mit Glasfaser-Schichten 32, die mit thermisch aushärtbarem Kunstharzkleber geträidct sind, bewickelt. Dann wird eine Deckplatte 33, die ebenfalls mit Schutzkanten 34 versehen sein kann, über den eingelegten Kunststoffkern eingelegt. Auch die Seitenwände der Hohlform könnten mit Seitenplatten ausgekleidet werden.According to Fig. 1, in the hollow mold 1, to which a lid 2 belongs, a base plate 35 is inserted, which is still with a special sliding coating and edges 36 can be provided. On this base plate 55 is a plastic in its raw form deformable plastic core 31 inserted, which has the property of thermal Cure to inflate under considerable pressure. Such plastics are commercially available as Splioe foam (Ciba (ARL) LTD GB). The plastic core 31 is done beforehand with fiberglass layers 32, which are covered with thermosetting synthetic resin adhesive are worn, wrapped. Then a cover plate 33, which is also with protective edges 34 can be provided, inserted over the inserted plastic core. The side walls too the mold could be lined with side plates.

Beim thermischen Aushärten in der geschlossenen Porm bläht sich der lcunststoffkern 31 unter beachtlicher Druckerzeugung auf und noch bestehende Hohlräume 3 werden, wie Pig. 2 zeigt, ausgefüllt. Das Glasfasergewebe 32 wird also von innen her -an die Preßform 1, 2 angepresst und bildet mit der Deck-und Bodenplatte einen Verbundkörper, dessen Kern ein leichtes, zellig strukturiertes Material ist.When thermally hardening in the closed porm, it expands Plastic core 31 with considerable pressure generation on and still existing cavities 3 will be like Pig. 2 shows, filled out. The fiberglass fabric 32 is so from the inside pressed against the mold 1, 2 and forms one with the top and bottom plate Composite body, the core of which is a light, cellular structured material.

Ansprüche: Expectations:

Claims (9)

A n s p r ü c h e 1. Verfahren zur Herstellung eines Presskörpers in einer Form, dadurch gekennzeichnet, daß der Form-EIohlraum mit mindestens einem plastisch deformierbaren Kunststoffkern (31) ausgelegt wird, welcher die Eigenschaft hat, sich bei dem sich anschliessenden thermischen Aushärten unter beträchtlicher Druckerzeugung aufzublähen und die Form (1, 2) als feste, zellig strukturierte Masse auszufüllen. A n p r ü c h e 1. Process for the production of a pressed body in a mold, characterized in that the mold cavity with at least one plastically deformable plastic core (31) is designed, which the property has, in the subsequent thermal curing under considerable To inflate pressure generation and the form (1, 2) as a solid, cellular structured mass to be filled out. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der sich aufblähende Kunststoffkern (31) mit in thermisch aushärtbarer Kunststoffmasse getränktem, verstärkendem Hüllmaterial bewickelt wird, das bei dem sich anschliessenden thermischen Aushärten vom sich aufblähenden Kunststof£iern (31) an die Wände der orm (1, 2) gepresst wird und sich beim Aushärten mit dem Kunststoffkern (31) fest verbindet. 2. The method according to claim 1, characterized in that the inflating plastic core (31) with soaked in thermally curable plastic compound, reinforcing shell material is wrapped, which in the subsequent thermal Hardening of the expanding plastics (31) on the walls of the orm (1, 2) is pressed and is firmly bonded to the plastic core (31) when it hardens. 3. Verfahren nach Anspruch 1 oder 2, zur Herstellung von Ski dadurch gekennzeichnet, daß in die Hohlform (1, 2) Schutzkanten (36, 34) eingelegt werden, die sich beim Aufbläh-und Aushärt-Vorgang mit dem Ski fest verbinden. 3. The method according to claim 1 or 2, for the production of skis thereby characterized in that protective edges (36, 34) are inserted into the hollow mold (1, 2), which bond firmly to the ski during the inflation and hardening process. 4. Verfahren nach einem der vorhergehenden Ansprüche, zur Herstellung von Ski dadurch gekennzeichnet, dass die Form (1, 2) mit einer Bodenplatte (35) mit Kanten (36) und Gleitbelag, sowie mit Seitenplatten ausgekleidet wird und daß der eingelegte, sich aufblähende Kunststoffkern (31) mit einer Deckplatte (33) mit Schutzkanten (34.) zugedeckt wird, derart, daß bei dem sich anschliessenden thermischen Aushärten der sich aufblähende Kunststoffkern (31) die Seiten-, Boden- (35) und Deckplatten (33) an die Wände der Form (1, 2) drückt und mit diesen Platten einen fest verklebten Verbundkörper bildet. 4. The method according to any one of the preceding claims, for production of skis, characterized in that the shape (1, 2) with a base plate (35) is lined with edges (36) and sliding coating, as well as with side plates and that the inserted, inflating plastic core (31) with a cover plate (33) Protective edges (34th) is covered in such a way that the subsequent thermal Cure the inflating plastic core (31) the side, bottom (35) and Cover plates (33) presses against the walls of the mold (1, 2) and one with these plates firmly bonded composite body forms. 5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die sich beim thermischen Ausharten aufblähenden Kunststoffkerne (31) mit verstärkenden Einlagen armiert werden. 5. The method according to any one of the preceding claims, characterized in, that the plastic cores (31) which expand during thermal hardening are reinforced Deposits are reinforced. 6. Nach dem Verfahren gemäss einem der Ansprüche 1 bis 5 hergestellter Press1=örper, insbesondere Ski, dadurch gekennzeichnet, daß mindestens sein Kern (31) aus einer zellig strulcturierten Masse besteht. 6. According to the method according to any one of claims 1 to 5 produced Press1 = body, in particular ski, characterized in that at least its core (31) consists of a cellularly structured mass. 7. Presskörper nach Anspruch 6, dadurch gekennzeichnet, daß er aus einem Kern (31) aus zelligem, festem Kunststoff besteht, der von einem verstärkenden Hüllmaterial (32) umgeben und mit diesem fest verbunden ist. 7. Press body according to claim 6, characterized in that it consists of a core (31) made of cellular, solid plastic, which is reinforced by a Enveloping material (32) is surrounded and firmly connected to this. 8. Presskörper, insbesondere Ski, nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass er aus einem Kern (31) mit eingearbeiteten Schutzkanten (34, 36) besteht. 8. Press body, in particular ski, according to claim 6 or 7, characterized characterized in that it consists of a core (31) with incorporated protective edges (34, 36) exists. 9. Presskörper, insbesondere Ski, nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß sein Kern (31) mit vorfabrizierten Aussenelementen fest verbunden ist. 9. Press body, in particular ski, according to one of claims 6 to 8, characterized in that its core (31) with prefabricated outer elements is firmly connected. lo. Presskörper, insbesondere Ski, nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, daß sein Kunststoff kern (31) mit verstärkenden Einlagen armiert ist. lo. Press body, in particular ski, according to one of Claims 6 to 9, characterized in that its plastic core (31) with reinforcing inserts is armored. L e e r s e i t eL e r s e i t e
DE19681806433 1967-11-16 1968-10-31 Moulding process particularly for composite or Pending DE1806433A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1607967A CH475835A (en) 1967-11-16 1967-11-16 Process for the production of a compact and compacts produced by the process

Publications (1)

Publication Number Publication Date
DE1806433A1 true DE1806433A1 (en) 1969-08-07

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ID=4414293

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681806433 Pending DE1806433A1 (en) 1967-11-16 1968-10-31 Moulding process particularly for composite or

Country Status (3)

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CH (1) CH475835A (en)
DE (1) DE1806433A1 (en)
FR (1) FR1591500A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297514B (en) * 1965-08-03 1969-06-12 Dynamit Nobel Ag Tail unit for missiles
DE3215616A1 (en) * 1982-04-27 1983-11-03 Ford-Werke AG, 5000 Köln METHOD FOR PRODUCING COMPOSITE COMPONENTS IN SANDWICH DESIGN, IN PARTICULAR FOR MOTOR VEHICLES, AND COMPOSITE COMPONENTS PRODUCED BY THE METHOD
FR2626521A1 (en) * 1988-02-01 1989-08-04 Danutec Werkstoff SHAPED DIRECT FOAM PREPREGNE PART FROM POLYURETHANE AND PROCESS FOR PRODUCING THE SAME
FR2654670A1 (en) * 1989-11-23 1991-05-24 Rossignol Sa PROCESS FOR THE MANUFACTURE IN A SINGLE OPERATION OF A COMPLEX MOLDED STRUCTURE, IN PARTICULAR A SKI, AND A COMPLEX MOLDED STRUCTURE THUS OBTAINED
FR2654645A1 (en) * 1989-11-22 1991-05-24 Salomon Sa METHOD FOR PRODUCING A SKI BY INJECTION, AND SKI STRUCTURE OBTAINED BY THIS PROCESS.
EP0495378A1 (en) * 1991-01-18 1992-07-22 Bayer Ag Method for manufacturing sandwich laminates, in particular skis, and sandwich laminate, in particular ski
US5173226A (en) * 1989-11-22 1992-12-22 Salomon S.A. Process of manufacturing an injected ski
FR2679780A1 (en) * 1991-07-31 1993-02-05 Rossignol Sa Method for manufacturing a ski
FR2699827A1 (en) * 1992-12-31 1994-07-01 Rossignol Sa Method of fabrication of ski with moulded structure and reinforcing sheets
FR2740719A1 (en) * 1995-11-03 1997-05-09 Rossignol Sa Fabrication of sliding plates, e.g. skis with good resistance to bending, traction, shock, etc.
CN104494160A (en) * 2014-11-25 2015-04-08 中联重科股份有限公司 Folding boom and fiber-enhanced resin-based composite material arm joint and making method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021775A (en) * 1983-07-19 1985-02-04 美津濃株式会社 Production of injection ski board
FR2620628B2 (en) * 1987-02-27 1994-08-19 Salomon Sa PROCESS FOR REALIZING A SKI AND SKIING DOES ACCORDING TO THIS PROCESS

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297514B (en) * 1965-08-03 1969-06-12 Dynamit Nobel Ag Tail unit for missiles
DE3215616A1 (en) * 1982-04-27 1983-11-03 Ford-Werke AG, 5000 Köln METHOD FOR PRODUCING COMPOSITE COMPONENTS IN SANDWICH DESIGN, IN PARTICULAR FOR MOTOR VEHICLES, AND COMPOSITE COMPONENTS PRODUCED BY THE METHOD
FR2626521A1 (en) * 1988-02-01 1989-08-04 Danutec Werkstoff SHAPED DIRECT FOAM PREPREGNE PART FROM POLYURETHANE AND PROCESS FOR PRODUCING THE SAME
JPH03182275A (en) * 1989-11-22 1991-08-08 Salomon Sa Making of ski by injection molding and structure of ski molded thereby
US5273696A (en) * 1989-11-22 1993-12-28 Salomon S.A. Process of forming a ski by injection
EP0428885A1 (en) * 1989-11-22 1991-05-29 Salomon S.A. Process for making a ski by injection, and ski structure
US5445403A (en) * 1989-11-22 1995-08-29 Salomon S.A. Ski structure formed by injection process
US5294139A (en) * 1989-11-22 1994-03-15 Salomon S.A. Ski
FR2654645A1 (en) * 1989-11-22 1991-05-24 Salomon Sa METHOD FOR PRODUCING A SKI BY INJECTION, AND SKI STRUCTURE OBTAINED BY THIS PROCESS.
US5173226A (en) * 1989-11-22 1992-12-22 Salomon S.A. Process of manufacturing an injected ski
US5186777A (en) * 1989-11-23 1993-02-16 Skis Rossignol S.A. Process for the manufacture of a composite molded structure, and especially of a ski
FR2654670A1 (en) * 1989-11-23 1991-05-24 Rossignol Sa PROCESS FOR THE MANUFACTURE IN A SINGLE OPERATION OF A COMPLEX MOLDED STRUCTURE, IN PARTICULAR A SKI, AND A COMPLEX MOLDED STRUCTURE THUS OBTAINED
EP0430824A3 (en) * 1989-11-23 1991-07-03 Skis Rossignol S.A. Method of producing a complex moulded structure, in particular ski and complex moulded structure so obtained
EP0430824A2 (en) * 1989-11-23 1991-06-05 Skis Rossignol S.A. Method of producing a complex moulded structure, in particular ski and complex moulded structure so obtained
EP0495378A1 (en) * 1991-01-18 1992-07-22 Bayer Ag Method for manufacturing sandwich laminates, in particular skis, and sandwich laminate, in particular ski
FR2679780A1 (en) * 1991-07-31 1993-02-05 Rossignol Sa Method for manufacturing a ski
FR2699827A1 (en) * 1992-12-31 1994-07-01 Rossignol Sa Method of fabrication of ski with moulded structure and reinforcing sheets
FR2740719A1 (en) * 1995-11-03 1997-05-09 Rossignol Sa Fabrication of sliding plates, e.g. skis with good resistance to bending, traction, shock, etc.
CN104494160A (en) * 2014-11-25 2015-04-08 中联重科股份有限公司 Folding boom and fiber-enhanced resin-based composite material arm joint and making method thereof

Also Published As

Publication number Publication date
CH475835A (en) 1969-07-31
FR1591500A (en) 1970-04-27

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