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DE1296360B - Process for the manufacture of glass fiber reinforced screw bolts - Google Patents

Process for the manufacture of glass fiber reinforced screw bolts

Info

Publication number
DE1296360B
DE1296360B DEL47832A DEL0047832A DE1296360B DE 1296360 B DE1296360 B DE 1296360B DE L47832 A DEL47832 A DE L47832A DE L0047832 A DEL0047832 A DE L0047832A DE 1296360 B DE1296360 B DE 1296360B
Authority
DE
Germany
Prior art keywords
glass fiber
fiber reinforced
screw bolts
layers
manufacture
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
DEL47832A
Other languages
German (de)
Inventor
Dunkel Guenter
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DEL47832A priority Critical patent/DE1296360B/en
Publication of DE1296360B publication Critical patent/DE1296360B/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
    • 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
    • B29C70/545—Perforating, cutting or machining during or after moulding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • 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
    • B29C70/68—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
    • 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
    • B29K2277/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as reinforcement
    • B29K2277/10—Aromatic polyamides [Polyaramides] or derivatives thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von glasfaserverstärkten Schraubenbolzen mit im Schaft achsparallel und im Gewinde- und Kopfteil quer zur Belastungsrichtung verlaufenden Fasern aus einem Mehrschichtpreßstoff. Derartige Verbindungselemente mit isolierenden Eigenschaften werden im zunehmenden Maße, insbesondere für die Elektrotechnik, verwendet.The present invention relates to a method for manufacturing glass fiber reinforced screw bolts with axially parallel in the shaft and transverse to the direction of loading in the thread and head part Fibers made from a multi-layer molded material. Such connecting elements with insulating properties are used to an increasing extent, especially for electrical engineering.

Es ist bereits bekannt, glasfaserverstärkte Bolzen und Schrauben herzustellen, bei denen zur Erhöhung der Zugfestigkeit die Glasfaserverstärkung aus achsparallel verlaufenden Strängen aufgebaut ist und bei denen im Gewindebereich quer zur Belastungsrichtung verlaufende Fasern angeordnet sind. Es ist auch schon bekannt, diese Verbindungselemente aus einem Mehrschichtpreßstoff herzustellen, um für den gewindelosen Schaft im wesentlichen axial verlaufende Fasern und im Gewindebereich querverlaufende Fasern vorzusehen.It is already known to produce fiberglass-reinforced bolts and screws in which to increase the tensile strength the glass fiber reinforcement is made up of axially parallel strands and with in which fibers running transversely to the loading direction are arranged in the thread area. It is also already known to produce these connecting elements from a multilayer molded material in order for the threadless Shaft essentially axially extending fibers and transverse fibers in the thread area Provide fibers.

Der Erfindung liegt die Aufgabe zugrunde, eine ao rationelle Fertigung von Verbindungselementen mit hohen mechanischen und elektrischen Festigkeitswerten zu schaffen. The invention has for its object to provide an extraordinary efficient production of fasteners with high mechanical and electrical resistance values.

Gemäß der vorliegenden Erfindung können Verbindungselemente, wie Schrauben oder Bolzen, aus a5 einem faserstoffverstärkten Kunstharz dadurch hergestellt werden, daß zunächst mehrere Schichten, die an den für die Kopf- und Gewindeteile vorgesehenen Stellen mit Verstärkungseinlagen versehen sind, zu einer Platte verpreßt und aus dieser durch spanabhebende Bearbeitung der herausgeschnittenen Stäbe die endgültige Form hergestellt wird.According to the present invention, connecting elements such as screws or bolts can be produced from a5 a fiber-reinforced synthetic resin by first pressing several layers, which are provided with reinforcing inserts at the points provided for the head and threaded parts, to form a plate and then through them machining of the cut rods the final shape is produced.

Als Verstärkungseinlage wird vorteilhaft quer zur Belastungsrichtung verlaufendes Fasermaterial zwischen die Schichten gelegt.A fiber material running transversely to the loading direction is advantageously used as a reinforcement insert laid the layers.

Als Ausführungsbeispiel gemäß der vorliegenden Erfindung ist in den Abbildungen ein Bolzen mit verjüngtem Schaft und Senkkopf dargestellt worden (Fig.l);As an embodiment according to the present invention, a bolt is shown in the figures tapered shaft and countersunk head have been shown (Fig.l);

Fig. 2, 3 und 4 zeigen Querschnitte durch den Bolzen nach Fig. 1;Figures 2, 3 and 4 show cross-sections through the bolt of Figure 1;

Fig. 5 zeigt einen Querschnitt durch eine Platte, aus der die Bolzen spanabhebend hergestellt werden; F i g. 6 und 7 zeigen Teilschnitte durch die verstärkten Enden dieser Platte mit den eingelegten Faserstoffen.Fig. 5 shows a cross section through a plate from which the bolts are produced by cutting; F i g. 6 and 7 show partial sections through the reinforced ends of this plate with the inserted Fibrous materials.

Aus F i g. 3 ist zu entnehmen, daß die innere Lage 31 des Schaftes aus axial verlaufenden Fasersträngen besteht, die von zwei Deckschichten 32, 33 überlagert sind, die aus Gewebebahnen bestehen. Wie der Querschnitt durch den Kopf in Fig. 2 zeigt, ist zwischen den inneren Lagen 21, 22 aus achsparallelen Strängen eine Einlage 23 aus quer zur Achse verlaufenden Strängen eingebettet. Die Außenschichten 24, 25 werden von Gewebedeckschichten gebildet. Einen ähnlichen Aufbau zeigt der Querschnitt durch den Gewindekopf (Fig. 4). Er besteht aus einer Einlage 41 aus quer zur Achsrichtung verlaufenden Fasersträngen, die von zwei Lagen 42, 43 überdeckt werden und welche aus achsparallel angeordnetem Fasermaterial aufgebaut sind. Die Deckschichten 44, 45 bestehen wiederum aus Gewebematerial. In bestimmten Fällen kann zur Verbesserung des Verbundes zwischen den einzelnen Lagen des Mehrschichtstoffs noch Faservliesmaterial eingelagert werden.From Fig. 3 it can be seen that the inner layer 31 of the shaft consists of axially extending fiber strands consists, which are overlaid by two cover layers 32, 33, which consist of webs of fabric. As the cross section through the head in Fig. 2 shows is between the inner layers 21, 22 of axially parallel Strands an insert 23 embedded from strands running transversely to the axis. The outer layers 24, 25 are formed by fabric cover layers. The cross-section shows a similar structure through the threaded head (Fig. 4). It consists of an insert 41 extending transversely to the axial direction Fiber strands which are covered by two layers 42, 43 and which are made of axially parallel Fiber material are built up. The cover layers 44, 45 in turn consist of fabric material. In certain cases it can be used to improve the bond between the individual layers of the multi-layer material, nonwoven material can still be stored.

F i g. 5 zeigt ein nach der Erfindung aufgebautes plattenförmiges Material mit einer mittleren Verstärkung 51 und zwei Endverstärkungen 52, 53. Zur Herstellung der Verbindungselemente wird die Platte längs der mittleren Verstärkung getrennt, so daß zwei Plattenstücke entstehen mit vorgebildetem Kopf- und Gewindeende. Zur Herstellung der einzelnen Bolzen werden diese Plattenstücke längs der strichpunktierten Linie getrennt und aus den entsprechenden Vorformlingen spanabhebend die Verbindungselemente in ihre endgültige Form gebracht. F i g. 6 und 7 zeigen einen Längsschnitt durch einen derartigen Vorformling, aus dem der Verlauf der Fasern zu ersehen ist. Im Kopfende 62 sind in der Mitte quer verlaufende Fasern 63 angeordnet, die die achsparallelen Fasern 64 auseinanderspreizen. Die äußeren Formschichten 65, 66 sind wiederum aus Gewebe gebildet. Der Schaft 67 besteht im wesentlichen nur aus achsparallel verlaufenden Fasersträngen, während das Gewindeende 68 aus Mehrschichtmaterial besteht mit abwechselnden Lagen aus quer und längs verlaufenden Fasern.F i g. 5 shows a plate-shaped material constructed according to the invention with a central reinforcement 51 and two end reinforcements 52, 53. To produce the connecting elements, the plate is separated along the central reinforcement, so that two plate pieces are produced with a pre-formed head and thread end. To produce the individual bolts, these plate pieces are separated along the dash-dotted line and the connecting elements are brought into their final shape by machining from the corresponding preforms. F i g. 6 and 7 show a longitudinal section through such a preform, from which the course of the fibers can be seen. In the head end 62, transverse fibers 63 are arranged in the middle, which spread the axially parallel fibers 64 apart. The outer molded layers 65, 66 are in turn formed from fabric. The shaft 67 consists essentially only of axially parallel fiber strands, while the threaded end 68 consists of multilayer material with alternating layers of transverse and longitudinal fibers.

Claims (2)

Patentansprüche:Patent claims: 1. Verfahren zur Herstellung von glasfaserverstärkten Schraubenbolzen mit im Schaft achsparallel und im Gewinde- und Kopfteil quer zur Belastungsrichtung verlaufenden Fasern aus einem Mehrschichtpreßstoff, dadurch gekennzeichnet, daß zunächst mehrere Schichten, die an den für die Kopf- und Gewindeteile vorgesehenen Stellen mit Verstärkungseinlagen versehen sind, zu einer Platte verpreßt und aus dieser durch spanabhebende Bearbeitung der herausgeschnittenen Stäbe die endgültige Form hergestellt wird.1. Process for the production of glass fiber reinforced screw bolts with axially parallel in the shaft and fibers running transversely to the load direction in the thread and head part a multi-layer molded material, characterized in that initially several layers, which are attached to the for the head and threaded parts provided places are provided with reinforcing inserts, pressed to form a plate and from this by machining the cut-out rods the final one Form is made. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Verstärkungseinlagen quer zur Belastungsrichtung verlaufendes Fasermaterial zwischen die Schichten gelegt wird.2. The method according to claim 1, characterized in that that as reinforcement inserts running transversely to the load direction fiber material placed between the layers.
DEL47832A 1964-05-19 1964-05-19 Process for the manufacture of glass fiber reinforced screw bolts Pending DE1296360B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL47832A DE1296360B (en) 1964-05-19 1964-05-19 Process for the manufacture of glass fiber reinforced screw bolts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL47832A DE1296360B (en) 1964-05-19 1964-05-19 Process for the manufacture of glass fiber reinforced screw bolts

Publications (1)

Publication Number Publication Date
DE1296360B true DE1296360B (en) 1969-05-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEL47832A Pending DE1296360B (en) 1964-05-19 1964-05-19 Process for the manufacture of glass fiber reinforced screw bolts

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Country Link
DE (1) DE1296360B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541621A1 (en) * 1983-02-28 1984-08-31 Asahi Chemical Ind FIBER REINFORCED PLASTIC ELEMENT AND EXTERNALLY THREADED AND METHOD FOR MANUFACTURING THE SAME
DE19849822A1 (en) * 1998-10-29 2000-05-04 Mkt Metall Kunststoff Technik Fiber reinforced plastic screw connector for use in construction is produced from plate whose fiber preform layers have fibers at a right angle to each other

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084088B (en) * 1958-12-06 1960-06-23 Hans Weber Dr Ing Cast resin screw and nut with fiber insert
DE1891681U (en) * 1963-12-13 1964-04-23 Licentia Gmbh THREADED FIBERGLASS REINFORCED CONNECTOR.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1084088B (en) * 1958-12-06 1960-06-23 Hans Weber Dr Ing Cast resin screw and nut with fiber insert
DE1891681U (en) * 1963-12-13 1964-04-23 Licentia Gmbh THREADED FIBERGLASS REINFORCED CONNECTOR.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541621A1 (en) * 1983-02-28 1984-08-31 Asahi Chemical Ind FIBER REINFORCED PLASTIC ELEMENT AND EXTERNALLY THREADED AND METHOD FOR MANUFACTURING THE SAME
DE19849822A1 (en) * 1998-10-29 2000-05-04 Mkt Metall Kunststoff Technik Fiber reinforced plastic screw connector for use in construction is produced from plate whose fiber preform layers have fibers at a right angle to each other

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