摘要:
A novel composite material is obtained by winding a reinforcing yarn, made of refractory fibers, onto a form, and a mandrel, the wound yarn being impregnated, as it is wound, with a “slip” composed of a liquid resin mixed with fillers composed of particles of refractory material. The reinforcing yarn is composed of linear fibers and of fibers forming protruding loops which confer a three-dimensional texture on the wound reinforcement. The yarn preform composed of the reinforcing yarn impregnated with “slip” is crosslinked according to a defined heating cycle comprising several temperature gradients of different durations. The crosslinked yarn preform is subsequently machined so as to bring the composite material component thus produced to the desired shape. The composite material component thus shaped can optionally be reinforced by overwinding on its external face with a reinforcing yarn preimpregnated with a resin chemically compatible with the resin constituting the material.
摘要:
The invention relates to a device for producing a honeycomb structure from strip material comprising a supply and forming device, which forms a structured strip from the strip material and additionally determines a conveying speed of the structured strip, and a stop device comprising a feed channel, wherein the stop device is disposed downstream of the forming device such that the structured strip can be supplied to the feed channel, and wherein the honeycomb structure comprises a stop edge, which runs parallel to the feed channel, and wherein the stop device comprises a stop and stop means, which are designed in a movable manner such that the structured strip can be connected to a stop edge of the honeycomb structure.