摘要:
Die vorliegende Erfindung betrifft ein Verfahren zum Ausgleichen von Orientierung von Füllstoffen und/oder Verteilung von Füllstoffen in einer Formmasse aus gefülltem Kunststoff eines Spritzgussteils. Ein derartiges Verfahren wird insbesondere beim Spritzgießen benötigt. Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass die Spritzgussform und die Formmasse während des Spritzgießens in der Spritzgussform mit Schall beaufschlagt werden. Der Schall weist eine Frequenz im Bereich des Spektrums der ersten zehn Eigenfrequenzen des Füllstoff-Matrix-Systems auf. Durch die Beaufschlagung mit diesem Schall werden die Füllstoffe, beispielsweise Fasern, innerhalb der Spritzgussformmasse bezüglich ihrer Orientierung und Verteilung isotroper verteilt, so dass sich erheblich bessere mechanische und optische Eigenschaften des Spritzgussteils ergeben.
摘要:
This specification discloses an article of manufacture. The article of manufacture has at least one structural blank and at least one guide. The structural blank has a plurality of oriented fiber plies in a thermoplastic matrix. The guide has a plurality of random dispersed fibers in a thermoplastic matrix. The guide is affixed to the structural blank by injection molding and over molding the guide onto the structural blank. The article of manufacture can take a number of forms for use in industries such as aircraft, automobiles, motorcycles, bicycles, trains or watercraft.
摘要:
The present invention relates to an article or layer made of a composite material comprising a plastic material reinforced with fibers, said article or layer comprising at least one segment of a predominantly two-dimensional structure with a first and a second surface and a basis thickness of the segment and at least one of the surfaces of the segment shows a surface profile with dents or knobs or dents and knobs, wherein the surface with the surface profile has a continuous basis surface, in which the dents are impressed or of which the knobs stick out, and the basis thickness of the segment is the distance between the basis surface of the surface with the surface profile and the other surface, if only one surface has a surface profile, or the basis thickness of the segment is the distance between both basis surfaces, if both surfaces have a surface profile, wherein in case of dents the distance between the surface in the area of the dent and the other surface, if only one surface has a surface profile, or the other basis surface is at least 10% less than the basis thickness and in case of knobs the distance between the surface in the area of the knob and the other surface if only one surface has a surface profile, or the other basis surface is at least 10% more and at the most 200% more than the basis thickness; and wherein at least 10% of the surface with the surface profile are knobs or dents. Furthermore, the present invention provides layered composite materials comprising such layers, methods of producing such articles or layers and the use of the articles or layered composite materials as as component or part of a component produced by or for the automotive industry or as component or part of a component of a household appliance.
摘要:
A method for making a sealing element for a rotating control device used in rotary drilling systems is disclosed. The sealing element has a bore, a base region, and a nose region. The method comprises providing a mold for the sealing element for the rotating control device, adding fibers at a first concentration to a first liquid elastomer material containing polyurethane, placing the first liquid elastomer material having a first concentration of fibers into the mold, adding fibers at a second concentration to a second liquid elastomer material containing polyurethane, placing the second liquid elastomer material having a second concentration of fibers into the mold, heating the fibers and liquid elastomer in the mold, and forming a sealing element having a bore, a base region with a first concentration of fibers, and a nose region having a second concentration of fibers.
摘要:
The invention concerns a system for injecting a composite substance inside a forming mould (10), said system comprising a supplying device (3) and at least a measuring device (5), characterised in that it comprises at least one line (20) formed of articulated tube sections (21), said tubes being double-sheathed so as to enable a heat exchanging fluid to circulate. The system enables to limit head loss and to control the temperature of the composite substance and a device injecting (13) the substance inside the mould can be mounted on a mobile part (11) of the latter.
摘要:
A gasket such as a cylinder head gasket (10) molded of an amorphous fiber reinforced thermoplastic resin composite having at least 3% by weight of reinforcing fibers, and having an integral non-elastomeric sealing bead (30) extending above the gasket body (12) and surrounding at least one service opening (16) and a method of making such a gasket.