Comprehensive performance of fire resistance and hardness of zirconia ceramic pins

Zirconium oxide ceramic pin itself has the properties of high hardness, corrosion resistance, good chemical stability, lighter weight and higher melting point than other ceramic products , is a very good fire-resistant material.

Zirconia ceramic pin has high rigidity and strength. Its hardness is twice as high as that of bearing steel, and its elastic modulus is about 1/3 higher. The linear expansion coefficient is 3.2×10-6/K, which is almost 1/4 of bearing steel and can withstand rapid changes in temperature.

Zirconia ceramic pins have a very hard shell, and their hardness is close to that of natural diamonds, but they are much lighter than metals. More importantly, they never wear or discolor, so many high-end watches are Processed from zirconia ceramics, whether it is the case, bezel or dial buckle, the use of zirconia ceramic materials can make the watch more textured.

Zirconia ceramic pins use injection molding technology. Through good shrinkage ratio control and post-processing, parts made of zirconia ceramics have been widely used in many industries, whether in molds or fixtures. More sophisticated production equipment is made of zirconia ceramics.