A process for the straightening of an extruded plastic - hollow profile and also a method for preventing the deformation of an extruded plastic - hollow profile.

摘要

The present invention relates to a process for the straightening of an extruded plastic - hollow profile with a weather side and one of the weather side opposite side, wherein the plastic - hollow profile before the start of the method, a deformation transversely with respect to the longitudinal direction of the profile, including the step of heating of the plastic - hollow profile at least on its side located opposite the weather side to a temperature between the heat deflection temperature of the material of the plastic - hollow profile and the glass transition temperature of the material of the plastic - hollow profile comprises. In addition, the present invention also relates to a method for preventing the deformation of an extruded plastic - hollow profile in a direction transversely to the longitudinal direction of the profile, wherein the plastic - hollow profile a weather side and one of the weather side opposite side thereof, including the step of heating of the plastic - hollow profile at least on its side located opposite the weather side to a temperature between the heat deflection temperature of the material of the plastic - hollow profile and the glass transition temperature of the material of the plastic - hollow profile comprises.