Abstract: A furnace for the manufacture of carbon fibers comprising a set of reaction tubes and an auxiliary installation required for its operation. There is also disclosed a procedure for manufacture of these fibers and the fibers obtained. The furnace has a set of reaction tubes vertically arranged and forming a single block with common heating that reduces the heat losses maintaining the modularity and scalability of the furnace. Each of these reactor tubes has an individual feed with the possibility of carrying out a cleaning of each of the tubes without the production being interrupted in the tubes.

Abstract: The liner is formed by a “support” structure and an outer or decorative liner layer. The “support” structure consists of three superimposed layers made of polyester fibers, where the middle layer (1) is considerably thicker than the outer layers (2), while the decorative layer (3) is of a polyester liner or of another suitable material, allowing recycling of the entire set. The different layers are attached to each other by pre-heating layers (1) and (2) and the corresponding molding of the “support” formed by these, including the outer or decorative layer (3), without requiring any further adhesive to keep said layers joined.