Zirconia ceramic ring is a new type of high-tech ceramics, which in addition to high strength, hardness, high temperature resistance, acid and alkali corrosion resistance and high chemical stability conditions of precision ceramics, but also has higher toughness than ordinary ceramics. It can be used in various industries, such as shaft seal bearings, cutting components, molds, automotive parts, etc., and even for the human body. In the field of consumer electronics, zirconia ceramics because of its hardness close to sapphire, but the total cost is less than 1/4 of sapphire, its bending rate is higher than glass and sapphire, non-conductive, will not shield the signal, so it is favored by fingerprint recognition module patch and mobile phone backplane.

Preparation of zirconia ceramic rings

Zirconia ceramic ring is a kind of inorganic non-metallic material made by sintering at high temperature, which has the advantages of high temperature resistance, corrosion resistance, wear resistance and thermal shock resistance. It is generally formed by graded pressing or dry pressing, and then sintered at high temperature to form ceramic bar blanks, and then polished, chamfered, and polished.

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Processing difficulties and solutions

Zirconia ceramic ring due to its characteristics, there will be many problems in the processing process, how to solve, the following Xiaobian will be introduced for everyone:

① The thickness of the ceramic ring is small, and it is easy to crack and collapse during processing because of the grinding force of the grinding equipment, which affects the qualified rate of the finished zirconia ceramic ring.

▶ Solution:

Before coarse grinding, the material is initially screened, mainly to screen out the problem materials visible to the eyes, such as materials that do not contain impurities in color. Avoid unnecessary loss due to material problems.

② Grinding and polishing process, we use rough throwing, semi-finishing, finishing process, the use of appropriate copper or iron plate, and ceramic plate as polishing paper, the use of ceramic mirror polishing machine for processing.

③ For the thin characteristics of the ceramic ring itself, specially targeted testing, using a new fixing method, testing the critical point between the combination of the pressure method and the fixing method, so that the zirconia ceramic ring workpiece and the grinding disk to achieve the ideal fit state.