The present invention provides a heat-curable resin composition, which comprises (1) a heat-curable resin mixture comprising a heat-curable resin (a) and thickener particles (b) and exhibiting a viscosity (150 C.) after having been held at a temperature of 150 C. for 30 seconds that is a viscosity (S), and (2) a curing agent, and is characterized in that the heat-curable resin composition exhibits a lowest viscosity (R) at 80-120 C., the lowest viscosity (R) is 0.1-10 Pa.Math.s, and the viscosity (S) and lowest viscosity (R) satisfy the relationship of formula (1):
5<S/R<200formula (1).

A system for manufacturing a composite assembly includes a first mandrel, a second mandrel, a first wrap plate, and a second wrap plate. The first wrap plate and the second wrap plate are positionable in side-by-side relation for receiving a wrap material stack. The first wrap plate and/or the second wrap plate are translatable to a wrap plate open position defining a wrap plate gap between the first and second wrap plate surface edge for receiving a bladder. The second mandrel is translatable to a mandrel open position defining a mandrel gap between the first and second mandrel surface edge. The wrap plate gap and the mandrel gap are configured to receive the wrap material stack formed around a bladder. The first and second wrap plate are configured to fold a first and second material stack base portion into overlapping relation with each other on the bladder top.

Techniques for overmolding thermoplastics onto a spray primed polymer substrate. A thin layer of primer may be sprayed directly over a pre-formed polymer material. Then, a thermoplastic is injection molded directly over the primer layer. In one embodiment, a carbon fiber-reinforced polymer (CFRP) fabric is thermal compression molded into a NED device housing shell. Selected portions of the NED device housing shell may be mechanically abraded and then sprayed with a solvent-based polyolefin primer. Once the primer layer has cured, a thermoplastic material may then be overmolded directly over the primer layerwithout any additional adhesive layer(s) between the primer layer and the thermoplastic material.

The present disclosure provides systems and methods for assembling a subassembly for use in manufacturing an implantable device header. A method includes placing a first split web into a top platen, placing a second split web into a bottom platen, placing a conductor assembly and an antenna assembly in the bottom platen on top of the second split web, compressing the top and bottom platens together, heating the top and bottom platens until a predetermined temperature and a predetermined pressure are reached, such that first split web is fused to the second split web to form the subassembly, separating the top and bottom platens, and removing the formed subassembly.

The present disclosure provides systems and methods for assembling a subassembly for use in manufacturing an implantable device header. A method includes placing a first split web into a top platen, placing a second split web into a bottom platen, placing a conductor assembly and an antenna assembly in the bottom platen on top of the second split web, compressing the top and bottom platens together, heating the top and bottom platens until a predetermined temperature and a predetermined pressure are reached, such that first split web is fused to the second split web to form the subassembly, separating the top and bottom platens, and removing the formed subassembly.

Systems and methods for embedding fiber optics cables within woven fibers. More specifically, protecting fiber optic cables from fluids, well pressure, mechanical strain, and environmental hazards within a downhole setting, wherein the fiber optic cables are protected using braided fibers, gel, and metals.

Provided is a sheet winding molding method including winding a thermosetting prepreg around a substrate while heating the thermosetting prepreg, wherein the time taken to form a next layer of the thermosetting prepreg on a layer of the wound thermosetting prepreg is shorter than the gel time of the prepreg at the temperature of the wound thermosetting prepreg. The sheet winding molding method is advantageous not only in that the method has excellent productivity, but also in that a molded article having excellent physical properties, such as excellent interlaminar shear strength, can be obtained by the method.

This flexible mandrel for molding a composite material containing a thermosetting resin includes: a main body containing a first material; and a thermally conductive layer containing a second material having a higher thermal conductivity than the first material, the thermally conductive layer being formed so as to cover at least a portion of the main body. The thermally conductive layer extends from a contacting surface of the flexible mandrel, which comes into contact with the composite material during molding, to a non-contacting surface which does not come into contact with the composite material.

The present invention provides an epoxy resin composition comprising at least the following component [A], component [B] and component [C], the epoxy resin composition being characterized in that: the mixture of component [A] and component [B] is a mixture that, when temperature is increased at 2 C./min, begins to thicken at temperature (T1) and completes thickening at temperature (T2), temperature (T1) being 80-110 C. and temperature (T1) and temperature (T2) satisfying the relationship of expression (1) 5 C.(T2T1)20 C. expression (1); and the mixture of component [A] and component [C] is a mixture that, when temperature is increased at 2 C./min, begins to cure at temperature (T3), temperature (T1) and temperature (T3) satisfying the relationship of expression (2) 5 C.(T3T1)80 C. expression (2). Component [A]: epoxy resin Component [B]: thickening particle Component [C]: curing agent.

A weld bead cutting device is configured such that, a liner made as liner portions are abutted on and welded to each other is rotated around a rotation axis extending in a direction along an abutting direction, and a weld bead is cut with a cutting tool arranged among rollers in a state where the rollers are pressed against an outer peripheral surface of the liner, the rollers being arranged on both sides of the weld bead on the liner in a direction along an extending direction of the rotation axis.