ceramics
Zirconia ceramics has the advantage of high hardness, good wear resistance, high toughness, low friction coefficient and good corrosion resistance. It’s widely applied in the mechanical sealing parts, ball mill media, cutting tools, ceramic bearing, automotive engine parts, dewatering equipment of paper machine and etc. The wear resistance of zirconia ceramics is 15 times of alumina ceramics; the friction coefficient of zirconia ceramics is only 1/2 of alumina ceramics, and the friction coefficient of alumina ceramics is very low. The density of zirconia ceramics is higher than the alumina ceramics. The density of alumina ceramics is 3.5. The density of zirconia ceramics is 6. The texture is finer. After grinding and processing, the surface smoothness is higher, as high as ▽9 above, in the condition of mirror-like surface, very smooth, and the friction coefficient is smaller. The surface smoothness is higher, in the condition of mirror-like surface, very smooth, with less friction with the net, which may further improve the service life of net, greatly reduces the net consumption, reduce the net electric current, and reduce the electric consumption. Moreover, the toughness of zirconia ceramics is excellent, which overcomes the intrinsic brittleness of ceramics. Therefore, the wear resistance is higher, the product service life is greatly prolonged, and the paper quality is obviously improved.
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