Method of making carbon fiber tube is usually in the winding, the process is not complicated, the carbon fiber in the resin, and then wound on the core mold, high temperature curing, stripping and other steps to get products, general winding can be subdivided into dry and semi dry wet winding winding, winding, this paper mainly introduces the three methods.
Drywinding: dry is predipping treated carbon fiber yarn or cloth on a winding machine heating and softening, until the viscous flow after winding mandrel, dry winding is the biggest advantages of high efficiency, can realize mass production in a short period of time, and in the production process of machine cleaning, no pollution, can control the rubber content. But generally, dry process carbon fiber tubes need not only instruments, but also equipments for prepreg yarns, with large investment and poor fluidity of resin, so there will be some defects in the products made.
Wet winding is wet after carbon fiber prepreg glue directly wound on the core mold, wet winding with low cost, compared to the dry winding, reduced by 40%, the product quality is good, and the molding, fiber tension so that the resin liquid bubble extrusion, fill the gap, good air tightness of. However, the use of wet winding will waste a certain amount of resin, and the content of the product is not easy to control.
Half dry winding: the semi dry method is to use the drying equipment to remove the solvent in the process of winding the carbon fiber prepreg into the core mold. The semi dry winding can save the prepreg process and equipment, and also reduce the bubble content in the product.
The general fiber winding can be in accordance with the product design force to take effective winding rule of carbon fiber strength, usually we use the wet process, as the top technology in the field of high performance and high precision is drywinding.
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