• Sharpening= fracturing the softer
bond posts.
• This causes the worn grains to be
removed, uncovering new sharp
abrasive grains.
• Why sharpen?
» To expose fresh abrasive grit.
» To control the compression /
decompression frequency on the
wood fibres.
» To control fibre length.
» To clean stone pores.
» To carry water into the grinding
zone and pulp out of the grinding
zone.