B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 4/30 (2006.01) B02C 15/00 (2006.01)
Patent
CA 2557664
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.
La présente invention se rapporte à un galet de broyage composite, réalisé par coulée, comportant des inserts périphériques en matériau à haute résistance à l'usure et à haute dureté, scellés lors de ladite coulée dans une matrice ductile, ledit galet comportant des premières zones soumises à forte contrainte à l'usure ainsi que des secondes zones soumises à faible contrainte à l'usure caractérisé en ce que dans ladite première zone ledit galet présente sur sa face périphérique des inserts comportant une partie jointive et dans ladite seconde zone, une partie non jointive, l'écartement entre ladite partie non jointive étant comblé par ledit matériau ductile de la matrice coulée permettant un accrochage mécanique suffisant des inserts.
Gowling Lafleur Henderson Llp
Magotteaux International Sa
LandOfFree
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