Method of producing a grinding roll
AssigneesKrupp Polysius AG, Schwabische Huttenwerke GmbH
InventorsHeinz Schröder, Helmut Lücke, Ludger Rübbelke
Life of this patent
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Abstract
The invention relates to a method of producing a grinding roll in which a roll tire made from a highly wear-resistant bainitic cast material is applied to the basic roll body. In order to create a roll tire with particularly high reliability against fractures and with relatively high wear resistance and compression strength, the roll tire is produced from a ductile bainitic spheroidal graphite cast material having a breaking elongation of approximately 0.1 to 2.5% and a compression strength of approximately 1,000 to 1,800 Mpa.
Claims12
A grinding roll adapted for use in a material bed roll mill for the comminution of brittle material, said roll having a roll body fitted with a wear resistant peripheral tire formed from ductile bainitic spheroidal graphite material and having a breaking elongation of approximately 0.1 to 2.5% and a compression strength of approximately 1,000 to 1,800 MPa, said tire having on its peripheral surface profiled beads of wear resistant material.
A grinding roll adapted for use in a material bed roll mill for the comminution of brittle material, said roll having a roll body fitted with a wear resistant peripheral tire formed from ductile bainitic spheroidal graphite material and having a breaking elongation of approximately 0.1 to 2.5%, said tire having on its peripheral surface an array of profiled beads of wear resistant build-up welding material comprising tungsten carbide.
A grinding roll adapted for use in a material bed roll mill for the comminution of brittle material, said roll having a roll body fitted with a peripheral tire having a plurality of layers of wear resistant material thereon, said tire being formed from a ductile spheroidal graphite material, and having a breaking elongation of approximately 0.1 to 2.5% and a compression strength of approximately 1,000 to 1,800 MPa, one of said layers being outermost and said outermost layer having thereon an array of profiled beads of hard build-up welding material comprising tungsten carbide.
Dependencies are inferred from the claim text.