Why is the blade of the jumbo jumbo slitting machine easily damaged？

jumbo slitting machine  is a kind of mechanical equipment that cuts wide paper, mica tape or film into multiple narrow-width materials. It is often used in papermaking machinery, wire and cable mica tape, and printing and packaging machinery. Mainly used in: cutting of non-woven fabrics, mica tapes, paper, insulating materials and film materials, suitable for cutting of narrow bands.
The frequency of use of the blades of the equipment is very high, and the damage to the blades is also very high, so the blades should be inspected and replaced.

In a sense, crushing can be considered as a kind of abnormal wear, and there are two kinds of early and late crushing of blades. The form of slitter blade crushing is mainly abrasion and crushing. In the modern production of fine crushing, when the blade is abnormally worn or crushed, if it is not found and taken measures in time, the workpiece will be scrapped, and the machine tool will be crushed, causing great losses.
If the blade cannot withstand the stress, sudden crushing may occur, causing it to lose its cutting ability in advance, which is called slitter blade crushing, and crushing is relative to wear.