Verfahren und Vorrichtung zur Vernetzung und Schäumen von Notlaufstützkörper für Fahrzeugreifen und damit hergestellte Körper

摘要

Formation of a safety insert, comprises expanding a partly reticulated insert to form a closed cellular structure. Includes placing it in a fluid bath at 110-210 degrees C in a pressurized container at an initial absolute pressure of ≥ 5 bar. The pressure drops to 1 bar during the expansion. The expansion is not limited by the size of the container. Independent claims are included for the following: (a) a cooking apparatus for performing the process, comprises a container with an inlet chamber, a cooking compartment including the fluid bath and an outlet chamber. A device transfers the pressurized fluid alternately between the inlet and outlet chambers; (b) the safety insert for mounting on a wheel rim within a tire is of closed cell foam rubber. At its smallest radial cross section the insert has an intermediate layer forming 5-30% of its thickness. This layer has a lower density than the innermost part of the insert.