PROCESS AND DEVICE FOR BENDING PLASTIC PIPES

摘要

The invention relates to a process for bending plastic pipes in which a plastic pipe is heated at the bending point. The feature of the invention is that the pipe section is first heated in a water bath at about 80 DEG C and then laid around one or more bending plates (3) depending on the desired shape, whereupon the bending plates are subjected to a heat source (5), e.g. a hot air blower and partially heated, depending on the pipe material used, to a maximum of 160 DEG C for 10 to 15 seconds, whereafter the pipe section is subjected to a first cooling process from the inside using cold compressed air (24) for 10 to 15 seconds and finally the pipe section is laid in a cold water bath. The invention also relates to a device for implementing the process.