FORMING BODY FOR SEALING AN OBJECT TO BE WELDED, MORE PARTICULARLY A PIPE

摘要

In some embodiments, a forming body for the temporary sealing of a flow cross-section of an assigned object to be welded is disclosed. In some embodiments, the forming body comprises a dimensionally stable, preferably biologically-degradable material, which has a water solubility≧90% and of which the main component is corn starch and/or corn semolina and/or corn flakes.

主权项

1. A forming body for the temporary internal sealing of a flow cross section of an assigned object to be welded, during welding, the forming body being designed as a form body which is dimensionally stable, pressure-stable and temperature-stable and is adapted to the flow cross section to be sealed of the object, in such a way that said forming body can be sealingly introduced, acting as a gas barrier, into the flow cross section, of the assigned object wherein the forming body is composed of a dimensionally stable material which has a water solubility of ≧90% and the main constituent of which is corn starch and/or corn semolina and/or corn flakes.