Patent classifications
B29C48/2883
Method of producing a fiber composite component
A method for producing a fiber composite component includes a step (a) that includes a production of a semi-finished product by: providing a core layer having cavities; covering an outer face of the core layer with a layer-shaped semi-finished product having continuous fibers pre-impregnated with a first duroplastic matrix material; and applying a molding compound to a first deposit area of a front face of the first semi-finished product, the front face facing away from the core layer, wherein the molding compound includes a second long-fiber-reinforced duroplastic matrix material. The method also includes a step (b) for extruded reshaping of the semi-finished product to the fiber composite component. The extruded reshaping is performed at an operating temperature, and the first and the second matrix material are configured such that flowability of the second matrix material is higher than flowability of the first matrix material during the reshaping.
Process for forming a divided conduit
A process for extruding a divided conduit comprising obtaining an extrusion die head, inserting a strip-shaped substrate into the extrusion die head such that the strip shaped substrate is located within the tip gap and extends at least partially out of the tip gap such that the longitudinal edges are located in the die gap, and flowing molten polymer through die gap, encapsulating the longitudinal edges of the strip-shaped substrate in molten polymer. The extrusion die head contains a tip region and a bushing. The tip region contains at least 2 tips separated by a tip gap. The bushing extends around the tip region and the distance between the tip region and the inner surface of the bushing is defined to be the die gap and the die gap varies around the bushing.
REINFORCED TUBING AND METHOD OF MAKING THE SAME
A reinforced tubing comprising a shaft, a tubular body, and two or more reinforcing members is provided. The shaft has a lumen extending from a proximal port to a distal port having an inner and outer polymer layer. At least a portion of the shaft includes a tubular body and a tubular body reinforced by two or more reinforcing members. A chemical and heat treatment is performed to the two or more reinforcing members, forming an antibacterial surface thereon. A method of making a tubular body for a reinforced tubing shaft is provided. The method comprises providing two or more reinforcing members, providing a reinforced tubing mold and an extruder operatively associated therewith, attaching the two or more reinforcing members to the reinforced tubing mold, and extruding a polymer material into the reinforced tubing mold, wherein the polymer material surrounds the two or more reinforcing members forming the reinforced tubing.
SELECTIVE ATTACHMENT OF A YARN STRUCTURE
A method and system are disclosed. A method of printing onto a base having an upper surface spaced from a lower surface by a base thickness includes dispensing a yarn from a nozzle of a printing system and selectively attaching the yarn to a first attachment region. The step of dispensing the yarn includes dispensing a heat-moldable material and a melt-resistant material. The step of selectively attaching the yarn to the first attachment region includes moving the nozzle into the first attachment region. The step of moving the nozzle into the first attachment region reduces the base thickness by a prodding distance. The heat-moldable material bonds to the first attachment region.
Pipe with an outer wrap
The embodiments of the present disclosure provide a method of applying an outer wrap to a corrugated pipe. The method comprises receiving a corrugated pipe that is cut to length, determining a wrap type to be applied to the corrugated pipe, determining a flow rate for applying a wrap of the wrap type based on a type of plastic used in the wrap, a type of fiber used in the wrap, and the wrap type, and applying a wrap made of the type of fiber and the type of plastic to the corrugated pipe using the determined flow rate.
METHOD FOR PRODUCING AN ELONGATE COMPONENT USING A CENTERING ELEMENT
The invention aims to increase concentricity compared to conventional centering methods in a 3D extrusion cycle, using a pressure-controlled or floating centering lance. The invention proposes a device (10) for moulding an elongate component (44), comprising: a moulding arrangement (12) with at least one gate point; and a mould insert (22) that can be received in said moulding arrangement (12) and displaced along a displacement axis (V) relative to the gate point (18), said mould insert (22) at least partly delimiting a cavity (28) in which a solidifying moulding compound (21) added via the gate point (18) can be received, and said device (10) additionally comprising a centering element (34) which is configured to receive an elongate component (44) and guide it along a centering axis (Z) into said cavity (28). The device (10) is also accompanied by a method for moulding an elongate component (44).
Method for reinforcing a base structure
A method for reinforcing an existing base structure with at least one reinforcing structure so as to form a support structure having the following steps: producing the at least one reinforcing structure, connecting the at least one reinforcing structure to the base structure such that the at least one reinforcing structure is connected to the base structure in a connection position and the base structure together with the at least one reinforcing structure forms the support structure. The at least one reinforcing structure is made of a composite material comprising fibers and a matrix by means of pultrusion and/or extrusion, and a pultrusion unit and/or an extrusion unit is moved in space such that the at least one reinforcing structure, is pultruded and/or extruded onto the base structure at the respective required connection position after the pultrusion and/or extrusion.
Apparatus and method for extruding stripes onto an extruded product
An apparatus for extruding a jacket and/or insulative material onto an extruded product with one or more longitudinal stripes incorporated onto the surface of said extruded product comprising a body, a primary feed conduit for conveying a primary extrusion material, a striping die, a secondary feed conduit for conveying a secondary extrusion material, a striping die adapter, a striping feed conduit extending through the striping die adapter for conveying striping extrusion material. The striping die adapter may also include a thermocouple for maintaining the viscosity of the striping extrusion material and a thermocouple for monitoring the temperature of said striping die adapter. The striping die includes one or more striping extrusion outlets for conveying striping extrusion material onto the extruded product. The striping die may also include a wishbone-shaped trough for delivering equal amounts of striping extrusion material to said extrusion outlets for extrusion onto the product.
PELLETS OF A GLASS FIBER-REINFORCED THERMOPLASTIC POLYMER COMPOSITION, AND METHOD OF THEIR MANUFACTURE
Pellets of a glass fiber-reinforced thermoplastic polymer composition include a sheathed continuous multifilament strand having a core that extends in the longitudinal direction and a polymer sheath which intimately surrounds said core, wherein the core includes at least one continuous glass multifilament strand, the polymer sheath has a thermoplastic polymer composition including a polyolefin and having a melt flow index as measured according to ISO1133-1:2011 (2.16 kg/230 C.) of at least 1.0 dg/min and less than 20 dg/min, wherein the length of the glass filaments in the pellets is substantially the same as the pellet length, and is 10 to 55 mm, preferably 10 to 40 mm, more preferably 10 to 30 mm and most preferably from 10 to 20 mm.
Pipe with an outer wrap
This disclosure relates generally to corrugated pipe, and more particularly to corrugated pipe with an outer wrap. In one embodiment, a pipe includes an axially extended bore defined by a corrugated outer wall having axially adjacent, outwardly-extending corrugation crests, separated by corrugation valleys. The pipe also includes an outer wrap applied to the outer wall. The outer wrap may include fibers and plastic. The outer wrap may span the corrugation crests producing a smooth outer surface.