High purity wear resistant inlay material and its production method

摘要

Production of a highly pure replaceable wear insert comprises: placing expanded graphite into a pressing mold having two parts and subjecting the mold to 10-100 MPa pressure; removing a compressed molded part from the mold and placing into a mold made from temperature-resistant materials; and treating in a halogen-containing atmosphere above 2000 deg C so that the part is purified and embrittled. Preferred Features: The molding surfaces of the upper stamp and the lower stamp are separated by a gap. One of the stamps is convex and the other is concave.