b'BLADE WEAR: CAUSE & EFFECTAs part of its service to the tissue industry, BTG collects hundreds of worn crepe blades every year, and also records the process conditions in which they were used. This has enabled us to build a database upon which we can use statistical analysis to model different process parameters in terms of blade wear impact.The easiest wear to measure is sliding wear.The magnitude of the sliding wear is influenced by both Yankee speed and time of use, so we normalise the sliding wear to a m wear per 100 km Yankee travel value, or sliding wear rate.sliding wear rate = sliding wear /(Yankee speed x blade life) Figure 5. Sliding wear rate histogram for Softcrepe; median wear rate 4.65m/100km.________________________100000Figure 6. Sliding wear rate comparison of all blade types.40 TISSUE TECHNOLOGY INTERNATIONAL'