Patent ID: 6053158
Filing Date: 2000-04-25
Classification: B28D,Y02P

Abstract:
A slurry managing system for a wire saw including a wire that has a plurality of wire segments extending parallel to one another, wherein the wire is supplied with slurry containing abrasive grains in a dispersing liquid to cut a workpiece so as to simultaneously produce a plurality of wafers, said system comprising:a mixer for mixing the slurry prior to supplying the slurry to the wire saw;a first container for supplying the grains to the mixer;a second container for supplying the dispersing liquid to the mixer means;a first valve for adjusting the amount of the grains supplied to the mixer from the first container;a second valve for adjusting the amount of the liquid supplied to the mixer from the second container;the wire saw being arranged to discharge the slurry used to cut the workpiece, said discharged slurry including particle components smaller than the grains;a separator apparatus for separating the particle components from the slurry to collect a mixture of the dispersing liquid and the grains from the slurry discharged from the wire saw; anda recovery passage for transferring the collected mixture to the mixer, wherein the mixer mixes new slurry with the collected mixture.