Patent ID: 6475414
Filing Date: 2002-11-05
Classification: B29C,B29K

Abstract:
A method of extracting a melt strand (16) of a melt, in which the melt is conveyed under pressure through a tool (18) provided with a flat flow channel, and in which the melt leaves the tool (18) by way of an outlet gap which has at least one adjustable wall (2e), a height (h) and a width, whereinduring melt extraction by local modification of the position of the at least one adjustable wall (2e), the height (h) of the outlet gap is adjusted over the entire width of the outlet gap by a first adjusting system (13e) and locally over the width of the outlet gap by a second adjusting system (14e) independent of the first adjusting system (13e) so that during the time of extraction, the thickness (y) of the melt strand (16) changes over the entire width of the melt strand (16) or only at locally defined places; and wherein the first adjusting system (13e) and the second adjusting system (14e) are independent of each other and act on the same at least one adjustable wall (2e).