Grinding rollers for a vertical crusher
AssigneeMagotteaux International S.A.
InventorLeon Leclercq
Life of this patent
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Abstract
The invention relates to a composite milling roller, produced by casting, comprising peripheral inserts of a high wear-resistance and high hardness material, sealed in a ductile material on said casting. The roller comprises first zones subject to high wear and second zones subject to low wear, characterised in that said first zone of said roller comprises inserts on the peripheral face thereof with adjoining parts and, in said second zone, a non-adjoining part. The gap between the non-adjoining parts is filled with said ductile material of the cast matrix permitting an adequate mechanical anchoring of the inserts.
Claims20
Composite grinding roller (1), produced by casting, comprising peripheral inserts (5) made of a material with high wear resistance and great hardness, sealed during said casting in a ductile matrix (19), said ductile matrix (19) infiltrating around or into the peripheral insert (5) during this casting in such a way as to establish close contact at the interface between said peripheral inserts (5) and said ductile matrix (19) said roller (1) comprising first zones subjected to heavy wear (14) as well as second zones subjected to light wear (13), wherein said first zone (14), has, on its peripheral surface, inserts (5) with an abutting part (6,7) and said second zone (13) has a non-abutting part, the gap in said non-abutting part (12) being filled by said ductile material (19) during the casting allowing sufficient mechanical fixation for the inserts.
Dependencies are inferred from the claim text.