| 摘要 |
<p>A method of stiffening plastically deformable material, newly forming or formed into a shaped body, is presented. The method comprises; exposing the material, which comprises body-forming matter, polar molecules, and a polymeric agent having a thermal gel point, to electromagnetic radiation within the frequency range 10<7> to 10<1><3> Hertz. The radiation is applied (3) while plastically deformable material (A) is contained in, or as it emerges from a forming member (2) in the shape of a body. <IMAGE></p> |
