Process for producing a rotationally symmetrical, thin-walled sheathing

摘要

The invention relates to the production of sheathings from teflon for the use of seals to be used in the chemical industry. In cross-section, they have the shape of a U. According to the prior art, they are turned from solid material. This leads to high losses of the expensive teflon. According to the invention, they are shaped from teflon tubes under the application of heat and pressure. The operation is substantially that of rolling. This production is performed without losses.