DE3109949A1 - Process for producing injection moulded parts, in particular disc valves - Google Patents
Process for producing injection moulded parts, in particular disc valvesInfo
- Publication number
- DE3109949A1 DE3109949A1 DE19813109949 DE3109949A DE3109949A1 DE 3109949 A1 DE3109949 A1 DE 3109949A1 DE 19813109949 DE19813109949 DE 19813109949 DE 3109949 A DE3109949 A DE 3109949A DE 3109949 A1 DE3109949 A1 DE 3109949A1
- Authority
- DE
- Germany
- Prior art keywords
- clamping devices
- fiber bundle
- injection moulded
- producing injection
- moulded parts
- 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- Withdrawn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
- 238000002347 injection Methods 0.000 title claims abstract description 5
- 239000007924 injection Substances 0.000 title claims abstract description 5
- 238000000034 method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims description 15
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000012778 molding material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/24—Accessories for locating and holding cores or inserts
-
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
- B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
-
- 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
- B29C70/48—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 and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
-
- 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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
-
- 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
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7506—Valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Verfahren zum Herstellen von Spritzsuß- Process for the production of injection molding
teilen, insbesondere Tellerventilen Die Erfindung betrifft ein Verfahren gemäß dem Gattungsbegriff des Patentanspruchs. share, in particular poppet valves The invention relates to a method according to the generic term of the claim.
Es ist bekannt, Tellerventile aus Metall herzustellen, das den jeweiligen physikalischen Anforderungen, bei Auslaßventilen von Brennkraftmaschinen also Wärme und Abgaszusammensetzung, widersteht. Ein Nachteil derartiger Tellerventile ist ihre relativ große Masse, die die Ventilgeschwindigkeit begrenzt.It is known to produce metal poppet valves that suit the respective physical requirements, i.e. heat in the case of exhaust valves of internal combustion engines and exhaust gas composition. One disadvantage of such poppet valves is their relatively large mass, which limits the valve speed.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren gemäß dem Gattungsbegriff des Patentanspruchs zu schaffen, das die Verwendung eines leichteren Materials -Kunststoff, Leichtmetall- ermöglicht, wobei durch die Verwendung von Fasern, beispielsweise aus Glas, Kohle oder Aramid, die erforderliche Festigkeit gewährleistet ist.The invention has for its object to provide a method according to the Generic term of the claim to create the use of a lighter Materials - plastic, light metal - made possible by the use of Fibers, for example made of glass, carbon or aramid, the required strength is guaranteed.
Die erfindungsgemäße Lösung dieser Aufgabe besteht in den Merkmalen des Patentanspruchs.The solution to this problem according to the invention consists in the features of the claim.
Bei dem erfindungsgemäßen Verfahren wird eine gleichmäßige Verteilung und günstige Ausrichtung der Fasern im Bund dadurch erzielt, daß die zugleich Formteile darstellenden Klemmvorrichtungen unter Ausführung von Relativdrehbewegungen um die Längsachse des Faserbündels einander angenähert werden, so daß die Fasern im Bereich des späteren Bundes, also im bevorzugten Anwendungsfall der Erfindung im Bereich des späteren Ventiltellers, nicht geknickt, sondern gleichsam spiralförmig in den diesbezüglichen Formbereich eingelegt werden.In the method according to the invention, a uniform distribution is achieved and favorable alignment of the fibers in the federal government achieved in that the molded parts at the same time representative clamping devices with execution of relative rotary movements around the longitudinal axis of the fiber bundle are brought closer together so that the fibers in the Area of the later federal, so in the preferred application of the invention in Area of the later valve disc, not kinked, but rather spiral-shaped are placed in the relevant mold area.
Die Erfindung wird im folgenden anhand der Zeichnung erläutert. Es zeigen: Fig. 1 die beiden Klemmvorrichtungen nach Einlegen des Faserbündels, Fig. 2 die durch die Klemmvorrichtungen gebildete Spritzgießform im geschlossenen Zustand, Fig. 3 den Verlauf der Fasern im Bereich des späteren Bundes bzw. Ventiltellers und Fig. 4 einen Längsschnitt durch einen zwei Bunde aufweisenden, nach dem erfindungsgemäßen Verfahren hergestellten Ventilschieber.The invention is explained below with reference to the drawing. It show: Fig. 1 the two clamping devices after inserting the fiber bundle, Fig. 2 the injection mold formed by the clamping devices in the closed state, 3 shows the course of the fibers in the area of the later collar or valve disk and FIG. 4 shows a longitudinal section through a two collars according to the invention Process manufactured valve slide.
In Fig. 1 ist das Faserbündel 1 in die beiden Klemmvorrichtungen 2 und 3 eingelegt und von diesen fest umschlossen. Diese Klemmvorrichtungen werden für sich jeweils zweiteilig sein, wobei die Teilungsfuge die Längsachse 4 des Faserbündels 1 enthält. Zwischen den beiden Klemmvorrichtungen 2 und 3 besteht der Abstand 5, der von den Abmessungen des Bundes, im Falle eines Tellerventils also des Ventiltellers, abhängt.In FIG. 1, the fiber bundle 1 is in the two clamping devices 2 and 3 inserted and firmly enclosed by these. These clamping devices are each be in two parts, the dividing line being the longitudinal axis 4 of the fiber bundle 1 contains. There is a distance of 5 between the two clamping devices 2 and 3, that of the dimensions of the collar, in the case of a poppet valve that is the valve disk, depends.
Zur Formgebung dieses Bundes ist die Klemmvorrichtung 2 auf ihrer der anderen Klemmvorrichtung 3 zugekehrten Seite mit der Ausnehmung 6 versehen, deren Form also der gewünschten Form des Bundes entspricht.To shape this covenant, the clamping device 2 is on its the side facing the other clamping device 3 is provided with the recess 6, the shape of which corresponds to the desired shape of the covenant.
Nach dieser Einspannung des Faserbündels 1 erfolgt entsprechend dem Pfeil 7 eine Annäherung der Klemmvorrichtung 3 an die Klemmvorrichtung 2, wobei gleichzeitig entsprechend dem Pfeil 8 die Klemmvorrichtung 3 um die Längsachse 4 des Faserbündels 1 gedreht wird. Durch diese Relativbewegung entsprechend dem Pfeil 7 mit überlagerter Relativdrehung entsprechend dem Pfeil 8 kommen die beiden Klemmvorrichtungen 2 und 3, wie in Fig. 2 dargestellt, schließlich zur satten Auflage, so daß sie eine geschlossene Spritzgießform bilden. Wie insbesondere aus Fig. 3 ersichtlich, verlaufen die einzelnen Fasern 9 in der Ausnehmung 6, also in dem herzustellenden Bundbereich, unter Vermeidung von örtlichen scharfenKnicken etwa spiralförmig in gleichmäßiger Verteilung.After this clamping of the fiber bundle 1 takes place accordingly Arrow 7 an approach of the clamping device 3 to the clamping device 2, wherein simultaneously according to the arrow 8 the clamping device 3 about the longitudinal axis 4 of the fiber bundle 1 is rotated. By this relative movement according to the arrow 7 with superimposed Relative rotation according to the arrow 8 come the two clamping devices 2 and 3, as shown in Fig. 2, finally to the full support, so that it is a closed Form injection mold. As can be seen in particular from FIG. 3, the individual runs Fibers 9 in the recess 6, that is to say in the collar area to be produced, avoiding them of local sharp kinks roughly spirally in an even distribution.
Nach dem beschriebenen Schließen der durch die beiden Klemmvorrichtungen 2 und 3 gebildeten Form wird in aus der Spritzgießtechnik bekannter Weise das Spritzgießmaterial, also beispielsweise Leichtmetall oder Kunststoff, eingebracht und das Material gehärtet.After the described closing of the two clamping devices 2 and 3, the injection molding material is used in a manner known from injection molding technology, So for example light metal or plastic, introduced and hardened the material.
Verständlicherweise ist es möglich, in Abhängigkeit von den jeweiligen Beanspruchungen und dem verwendeten Spritzgießmaterial einen weiteren Behandlungsschritt anzuschließen, beispielsweise zur Erzielung einer Silizium-Carbid-Schicht als Dxidationsverhinderer.Understandably, it is possible depending on the particular Stresses and the injection molding material used a further treatment step to be connected, for example to achieve a silicon carbide layer as a oxidation inhibitor.
Fig. 4 zeigt einen Ventilschieber mit zwei bund- oder walzenartigen Durchmesservergrößerungen 10 und 11, die in der anhand der Fig. 1 und 2 beschriebenen Weise erzeugt sind. Dabei können Vertiefungen 12 zur späteren Aufnahme eines O-Rings 13 sowie 14 zur Bildung einer Labyrinthdichtung gleich mit eingeformt werden.Fig. 4 shows a valve slide with two collar-like or roller-like Diameter enlargements 10 and 11, which are described with reference to FIGS. 1 and 2 Way are generated. In this case, depressions 12 can later receive an O-ring 13 and 14 are molded in at the same time to form a labyrinth seal.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813109949 DE3109949A1 (en) | 1981-03-14 | 1981-03-14 | Process for producing injection moulded parts, in particular disc valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813109949 DE3109949A1 (en) | 1981-03-14 | 1981-03-14 | Process for producing injection moulded parts, in particular disc valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3109949A1 true DE3109949A1 (en) | 1982-10-14 |
Family
ID=6127315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813109949 Withdrawn DE3109949A1 (en) | 1981-03-14 | 1981-03-14 | Process for producing injection moulded parts, in particular disc valves |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3109949A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4120133A1 (en) * | 1991-06-19 | 1992-12-24 | Uhl Sportartikel Karl | Structural component for use in fibre-reinforced plastic - is partially enclosed by compatible injection moulded plastic e.g. polyolefin, polyurethane, etc. |
-
1981
- 1981-03-14 DE DE19813109949 patent/DE3109949A1/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4120133A1 (en) * | 1991-06-19 | 1992-12-24 | Uhl Sportartikel Karl | Structural component for use in fibre-reinforced plastic - is partially enclosed by compatible injection moulded plastic e.g. polyolefin, polyurethane, etc. |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: HELPHOS GMBH, 3388 BAD HARZBURG, DE |
|
| 8139 | Disposal/non-payment of the annual fee |