DIE PAD FOR EXTRUDING HOT METALS

摘要

A die pad for lubricating an extruding die as a metal billet is extruded therethrough comprising felted glass fibers. Particularly advantageous results are achieved with glasses which soften and melt in a narrow range of temperatures near the extrusion temperatures. Omission of organic binders and avoidance of undesirable side effects is possible with felted fibers. Densities in the pads of from 3 to 20 pounds per cubic foot have been employed depending upon the amount of lubricating glass required and the pad thickness acceptable.