Spatial contact analysis of fix ed-axes pairs using configuration spaces

Disclosed is a two-piece insulator for a press head. Both pieces of the insulator are molded from low thermal transmission material. The pieces are formed with a uniform wall thickness adjacent to the heating areas of the head. The two pieces are made to conform to the exterior of the head and each is provided with edges which abut when the pieces are in position on the head. Clearance areas are provided on the pieces for the various supports and utility connections of the head.