EP 0271502 B1 19910403 - GRINDING BLOCK FOR A REFINER
Title (en)
GRINDING BLOCK FOR A REFINER
Publication
Application
Priority
FI 861986 A 19860513
Abstract (en)
[origin: WO8706963A1] Grinding block (1) for a refiner, consisting of a sector or part of a sector of a grinding disc or cone made of stainless steel. In known refiners, the worst drawback with the kinds of steel (with a carbon content of 1.2 - 1.5 %) used in the grinding blocks is the brittleness of the material, entailing a low resistance against shocks and tensile stress. According to the invention, this problem is avoided in that at least part of the grinding surface of the block is constituted by one or more detachable segments (2) made of a substantially harder and more durable material than the rest of the grinding block (1), and that the block is provided with means (3, 4) for securing this detachable segment.
IPC 1-7
IPC 8 full level
CPC (source: EP)
D21D 1/306 (2013.01)
Citation (examination)
DE 3436316 A1 19850425 - TAMPELLA OY AB [FI]
Designated contracting state (EPC)
AT BE DE FR GB NL SE
DOCDB simple family (publication)
WO 8706963 A1 19871119; AU 596422 B2 19900503; AU 7390987 A 19871201; EP 0271502 A1 19880622; EP 0271502 B1 19910403; FI 80087 B 19891229; FI 80087 C 19900410; FI 861986 A0 19860513; FI 861986 A 19871114; JP S63503469 A 19881215; NZ 220274 A 19880929
DOCDB simple family (application)
FI 8700060 W 19870505; AU 7390987 A 19870505; EP 87902533 A 19870505; FI 861986 A 19860513; JP 50296787 A 19870505; NZ 22027487 A 19870512