| 摘要 |
<p>PURPOSE:To make the overlap section of an extruding rate which meet a property resin filling rate in each part into a property extruding section on the whole, and enable the operating control to be performed in order that the extruding rate is controlled by respectively obtaining per each cylinder part a resin filling rate which is determined by a function having variables of the screw speed and resin delivery rate. CONSTITUTION:First, the property extruding rate of resin which is determined by a function having at least variables of the speed of a screw 2 and melt index M I per each zone 7, 8, 9 is shown in the range of abstracting the smallest delivery rate from the largest delivery rate in each zone. Further, the filling rate should be considered which is in the A part of an additive supplying port provided on a cylinder 1 in the second zone 9. The section which is enclosed by a graph showing each equation of these numbers is the overlap section of a resin extruding rate in each zone; therefore, it is a proper extruding section. The operations mentioned above are carried out in a central processing unit, and the speed of a screw 2 and the speed of a gear pump 11 are so controlled that the extruding rate is controlled in the aforementioned proper extruding section.</p> |
