| 摘要 |
<p>A slub eliminator to be used in the textile industry includes a cutting means (16) having a cutting blade (20,40,51) and a blade receiving member (19,52) which are provided so as to allow a collision and an estrangement therebetween. The cutting blade (20,40,51) comprises zirconia ceramics containing at least 50 mol% zirconia having a tetragonal crystal structure which has an action of relaxing stress due to a stress inductive transformation mechanism. A roundness is provided at a cutting edge (20,40a) of the cutting blade (20,40,51). According to the construction, the mechanical features of the cutting blade, particularly strength, toughness and abrasion resistance, are greatly increased, the initial sharpness for cutting thereof is not only increased but even deterioration of the sharpness during its use is very small, and the span of life of the cutting means (16) is increased greatly.</p> |
