Die head with adjustable mandrel and method

Details Die head with adjustable mandrel and method Die head with adjustable mandrel and method

1995-05-05

1997-10-07

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Positioning of a mold part to form a cavity or controlling...

264 406, 264541, 2642092, 2642098, 264295, 264339, 264514, 264515, 4251331, 425141, 425144, 425532, 425381, 425466, 425467, 425403, B29C 4722

Patent

active

056744404

ABSTRACT:
A die head for extruding an annular body includes a mandrel having a warp portion with a number of segments spaced around the circumference of the mandrel. Heat is selectively flowed to the segments to warp the mandrel and vary the position of a die pin on the end of the mandrel in a die bushing to control the thickness of the extruded body.

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