Patent classifications
B29C65/524
Process and device for producing a fibre composite material
By use of a process for the production of a fibre-composite material, comprising the following steps: a) one or more fibre bundle(s) is/are drawn by way of one or more spreader device(s) into an impregnation chamber in such a way as to give at least two mutually superposed, spatially separate and spread fibre webs; b) melt is introduced by way of horizontally oriented distributor bars, in each case arranged between two fibre webs; c) the individual fibre webs are caused to converge in such a way that they are mutually superposed and contact one another; d) after the fibre webs have converged they are drawn, at the end of the operating unit, through a take-off die where the first shaping takes place, and also by use of a corresponding device, very good impregnation quality is achieved through a specific wetting method implemented after a high degree of expanding, and also through subsequent relative longitudinal and transverse movements of the individual fibres.
Method and apparatus for producing a reinforcement mesh
A method and an apparatus for producing a reinforcement mesh. Here, a reinforcement fiber strand is firstly saturated with a resin (H) and cured to form a cured, fiber-reinforced strand material. The strand material present as an endless material is then cut lengthwise into bars, which are then used as longitudinal bars or transverse bars for forming the reinforcement mesh. A connecting material is used at each intersection point between a longitudinal bar and a transverse bar and is dispensed in liquid form at the intersection point or is liquefied and then cured at the intersection point. A fixed connection is thus created between the longitudinal bars and the transverse bars at the intersection points. Between the intersection points, the longitudinal bars and the transverse bars have portions that are free of connecting material.
Method for producing a complex composite part, in particular having a thermoplastic matrix
A method for manufacturing a composite part with continuous fiber reinforcement and a polymer matrix from a composite preform. On one of the faces of the composite preform, a demarcated layer of thermoplastic polymer is deposited using an additive manufacturing method.
Method of manufacturing plate-shaped bonded body, bonding device, and plate-shaped bonded body
A method for quickly applying and spreading adhesive between substrates without leaving air bubbles. The method includes holding two substrates apart from each other with adhesive sides facing, a second substrate being positioned above a first substrate. The second substrate is suspended in a manner so as to cause a portion to warp towards the first substrate. After a liquid filler is applied between the two substrates, rollers are lowered onto the second substrate and moved so as to disperse the liquid filler between the first and second substrates. In accordance with the rolling of the rollers, end portions of the second substrate are lowered towards the first substrate.
ADHESIVE APPLICATOR ROLLER AND MACHINE COMPRISING THE ROLLER
Described is a roller for the automatic application of at least one adhesive on a sheet for mattresses, which makes it possible to optimise the time needed for processing and the precision of the distribution of adhesive on the sheet in relation to the desired pattern, eliminating the waste of adhesive.
Method for producing a double-walled thermostructural monolithic composite part, and part produced
A fibrous preform (1) is produced, provided with a sandwich structure comprising an intermediate flexible core (4) and two outer fibrous frames (2, 3), respectively arranged on opposing outer faces of said flexible core (4) and assembled by sections of wire (8, 9) passing through said fibrous frames (2, 3), said preform (1) being impregnated with resin. Said preform is then hardened and the core (4) is removed, preferably by pre-densification with chemical vapour infiltration, and the structure produced is then densified with liquid-phase infiltration.
Amalgamation joining methods and apparatuses
A method or apparatus for joining a first component to a second component with an amalgamation plate includes heating the first component, the second component, the amalgamation plate, or combinations thereof, with either a joining tool or a heating element. The components are attached to the amalgamation plate with the joining tool, such that the first component, amalgamation plate, and the second component are fixedly attached to one another, and the amalgamation plate may be substantially surrounded by the first component and the second component, such that it is hidden from exposure. Portions of the amalgamation plate may be embedded into the components via rotation and/or linear force. A portion of the amalgamation plate may be recessed within the joining tool or an anvil before attaching the amalgamation plate to the either component.
Bonding device and method for producing plate-shaped bonded assembly
A method for producing a bonded plate-shaped assembly includes retaining a pair of plate-shaped members facing each other by a pair of retaining base members; charging a photo-curable liquid material between the pair of plate-shaped members facing each other; causing movement of the pair of retaining base members by a retaining base member movement unit to cause the pair of plate-shaped members to draw close to each other to cause wetting spreading of the liquid material between the pair of plate-shaped members; detecting a wetting spreading state of the liquid material by a sensor; and illuminating curing light, in response to the result of detection, to the liquid material wettingly spread to the entire surfaces of the pair of plate-shaped members, to form the bonded plate-shaped assembly made up of the pair of plate-shaped members bonded together.
IMPACT FORMING OF THERMOPLASTIC COMPOSITES
Disclosed embodiments provide automated fiber placement techniques for fabrication of parts made from composite materials. A peening system with multiple pins provides compaction over irregular surfaces, providing superior performance as compared with traditional compaction rollers. The apparatus that carries out the techniques include a tape dispensing system, a heating system, a peening system, a processor and a memory coupled to the processor. The memory contains instructions that when executed by the processor perform the steps of: dispensing a first ply of thermoplastic composite tape over a mandrel; dispensing a second ply of thermoplastic composite tape on the first ply; and peening the second ply onto the first ply, such that the second ply is bonded to the first ply.
Adhesive sheet joining method and adhesive sheet joining apparatus
A die coater 10 as a coating member directly applies an adhesive resin G to a joining portion of a workpiece W by a predetermined width while a holding table 1 holding the workpiece W placed thereon moves. A reinforcing substrate T supplied from an original master roll is joined to the resin G applied to the workpiece W while being pressed by a joining roller 15, and the reinforcing substrate T is cut by a predetermined length. That is, an adhesive sheet is directly formed on the workpiece W.