VERFAHREN UND VORRICHTUNG ZUM HERSTELLEN VON FORMTEILEN AUS EINEM MASSIVEN ODER MIKROZELLULAREN KUNSTSTOFF, INSBESONDERE POLYURETHAN BILDENDEN, FLIESSFAEHIGEN REAKTIONSGEMISCH AUS MINDESTENS ZWEI FLIESSFAEHIGEN REAKTIONSKOMPONENTEN

摘要

Plastics-forming materials are shaped in a mold tool sealed by an associated closing unit. Lifting elements the stroke of which can be limited and controlled are associated with the mold tool. Shaping is accomplished by filling the mold cavity with reaction mixture while the mold tool halves are not completely sealed, sealing the filled mold and keeping the mold sealed until the article is completely cured. This method and apparatus are particularly useful in the production of dimensionally accurate geometrically complicated shaped articles.