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According to the person in charge of the Taiwan Sanjiang Technology Co., Ltd. who developed the product, the ceramic shaft and the bearing are made of zirconium dioxide raw materials, which are made of 7 or 8 kinds of formulas and made by using sintering technology. Firstly, zirconium dioxide and binder are used for mixing, and then injected by a high-precision injection molding machine. After degreasing and sintering in a sintering furnace, the semi-finished products are ground, and a self-developed lubricating film is used to make high strength and wear resistance. Ceramic shaft and bearing. In order to reduce the contact surface between the ceramic axis and the bearing and reduce heat generation, the axis is not completely followed by the bearing, but by designing a thin groove on the shaft body of the shaft to make it snap over the bearing and reduce the contact surface.
Compared with this product, the traditional 420 series stainless steel shaft and bearing can produce high heat after being rubbed with each other in operation, which will make the steel ball in the bearing deform, and the whole fan or radiator will be scrapped.
According to reports, this ceramic axis and bearings are mainly used in the micro-cooling fan of the computer case radiator and the CPU. Due to its low calorific value, its durability has been greatly improved. Currently, it has been awarded by Asustek. Gigabyte and other computer motherboard manufacturers recognized. Prior to this, Japan had also developed micro-ceramic shafts and bearings, but the sintering was not ideal, resulting in low yields, coupled with high production costs, the application prospects are not clear.
Taiwan made a new type of ceramic shaft and bearing
In Taiwan, China recently developed a miniature motor made of a ceramic shaft and bearing. This new type of shaft and bearing is 20 to 50 times more durable than traditional stainless steel products.