APPARATUS FOR THE PRODUCTION OF PLASTIC PIPES

摘要

Pipes with special profile sections are produced by an apparatus with circuit guided half shells. The half shells (2a) combining to form a mold have mold walls (47) extending about parallel to the mold space axis (45). Vacuum slits extend about parallel to the mold space axis (45) to open into the mold space (27a) in each case at a place radially the most distant from the mold space axis (45). This ensures a proper formation of special profile sections in a vacuum forming method.