Fine Grinding Method for Zirconia Ceramics

Fine Grinding Method for Zirconia Ceramics

Zirconia ceramics have high high-temperature structural strength and negative resistance temperature coefficient, so it is necessary to polish the material of the product under certain circumstances. The specific methods are as follows:

(1) Mechanical polishing of zirconia ceramics

When constructing zirconia ceramics on a large area, in order to improve work efficiency, mechanical polishing methods such as electric polishing machines (disc type, vibration type) can be used.

(2) Dry polishing of zirconia ceramics:

Use sandpaper for polishing. Suitable for polishing hard and brittle paint, the disadvantage of polishing zirconia ceramic materials is that a lot of dust will be generated during the operation, which affects environmental hygiene.

(3) Wet polishing of zirconia ceramics:

Polish with sandpaper dipped in water or soapy water. Water grinding can reduce grinding marks, improve the smoothness of coatings, and save sandpaper and labor. However, attention should be paid to spraying the lower layer of paint after water grinding. Firstly, it is necessary to wait for the water grinding layer to completely dry before applying the lower layer of paint, otherwise the paint layer can easily turn white. Additionally, substrates with strong water absorption are not suitable for water grinding.

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