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Tibtech presents the evolution of its electro-heating systems for composite structures

News International-French

12 Jun 2015

The company presented the evolution of its Tibgrid electro-heating grids for composites, as well as its Isowatt structure for parallel heating of large de-icing composite structures during JEC Americas 2015 - Houston.

Tibgrid Interfacial
The concept consists of an electro heating circuit that can be inserted in the composite mold for process issues, or in the part itself for functionalization. It is associated with a thermal transfer grid that can follow the flexibility or elasticity of the structure.

Thanks to this additional thermal transfer structure, Tibgrid Interfacial can release inside the composite structure itself, which allows much more power per surface unit than the heating yarn could do alone. Therefore it is interesting for heating molds where one wishes to reduce the process time through shorter heating or cooling cycles.

Apart from elasticity, this thermal transfer structure is also designed not to interfere with the possibility of partially cutting open the structure to drape it alternatively forth and back on a complex shape structure, allowing to keep the benefit of only two connections on a complex shape.

It is also possible to use this thermal transfer structure as a safety connection to the ground in case of electrical risk following any accidental damage of the mold.

Tibgrid Isowatt
This product is especially developed for for the de-icing or heating needs of large surfaces.

In this 2m width open woven structure, all the Thermotech heating yarns are placed in a parallel manner so that the final structure can be cut in different lengths without changing the power per surface unit.

This is partly due to a new concept of highly conductive? selvedges allowing high current intensity (up to 20 to 30 A), but also mainly to the highly resistive yarn of 1000 or 1500 Ω/ yard.

This concept allows the use of 110 or even 230 volts for large rectangular surfaces to cover.

For safety issues, it can also eventually be associated with the company's Tibmesh ultrafine conductive mesh to spread the heat evenly and to allow safe connection to the ground.

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