公开(公告)号：WO2013149176A1

公开(公告)日：2013-10-03

申请号：PCT/US2013/034655

申请日：2013-03-29

Applicant: GLOUCESTER ENGINEERING CO., INC.

Inventor： ANDREWS, Michael, Charles ,  BIRON, Chad, Allen ,  BODE, William, Welsh ,  JONES, William, Ellery ,  O'CONNOR, Bruce, Michael ,  STEELE, Mark, Dean

IPC: B29C47/20

CPC classification number: B29C47/20 ,  B23C3/32 ,  B29C47/0026 ,  B29C47/065 ,  B29C47/085 ,  B29C47/705 ,  Y10T409/303752

Abstract: An annular die has a mandrel having a spiral groove formed in a surface of the mandrel that distributes a flow of liquid across the mandrel surface and directs the flow of liquid in a flow direction across the spiral groove and across the mandrel surface. At least a portion of the spiral groove has a cross-section configuration where an interior surface of the spiral groove portion is oriented toward the flow direction as the interior surface extends to and intersects with the mandrel surface. The annular die has particular, but not limited, application as a blown film die.

Abstract translation: 环形模头具有心轴，该心轴具有形成在心轴表面中的螺旋槽，其分配液体流动穿过心轴表面，并引导液体流动方向穿过螺旋槽并穿过心轴表面。 螺旋槽的至少一部分具有横截面构造，其中当内表面延伸到心轴表面并与其相交时，螺旋槽部分的内表面朝向流动方向。 环形模具具有但不限于作为吹塑薄膜模具的应用。