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Ceramic Knifes Development History
Jul 18, 2016

Ceramic Knifes Development History


Ceramic knife using a precision ceramic high pressure developed, said ceramic knife. Ceramic knife known as "noble knife", as a modern high-tech products, has the advantage of traditional ceramic knife white gold case of the tool can not match; using high-tech nano-zirconia raw material, so ceramic knife called "zirconium gem knife", it the elegance and luxury is evident.

Most of the market is made of a ceramic knife nanometer materials "zirconium oxide" processing. Zirconia powder at 2000 degree heat coupled with the weight of 300 tons knife pressed into the mold blank, and then after diamond grinding coupled with the handle on the finished product made of ceramic knives.

Development History

With the development of the new technological revolution, increasing demands machining productivity and reduce production costs., Especially the development of CNC machine tools, cutting speed is higher than the requirements of the development of carbide cutting tools, more wearable new tool. Difficult to cut a variety of new materials, high strength recently, high hardness, corrosion resistance, wear resistance and high temperature is increasing. According to the literature is estimated that such materials have accounted for more than 50% of the total number of international processing., Carbide cutting tools for the machining of which could not do a lot of new material. On the other hand, now the international carbide production has reached 20 000- 25 000 t. Annual consumption of large amounts of metals such as W, Co, Ta and Nb and the like. These metal mineral resources are dwindling, prices, according to the rate of consumption before, does not take decades and some resources will be depleted. Ceramic tool is the development in this context together.

ceramic knife

ceramic knife

Early in 1912- 1913. Britain and Germany have emerged alumina ceramic tool, but its application in production began in 1950. Because of its strength, toughness is low, a longer period is limited to do with continuous cutting finishing., And the cutting speed and feed rate are low. Until 1968 it appears the second generation of ceramic cutting tools - alumina composite tool, the strength and toughness than aluminum tool has been significantly improved, the workpiece can be cut in a variety of high speed and large feed rate - . it has been more widely used.

The late 1970s and early 1980s there has been an international third generation ceramic tool - Silicon Nitride Ceramic Tool. Such ceramic cutting tools have a higher ratio of alumina composite tool toughness, impact resistance, high temperature strength and thermal shock resistance. Ceramic inserts in various industrial production in developed countries is growing rapidly.

China since the 1960s and began mass production of alumina composite blade, the current annual production capacity of 14-15 million. Silicon oxide ceramic blade, although since the mid-1970s began to study, due to poor performance, can not meet the demand. In recent years, along with the study of high-temperature structural ceramics deepening of the performance of the silicon nitride ceramic has been greatly improved, so that the silicon nitride ceramic tool developed rapidly in our country.