The early history of the development of ceramic cutting tools in 1912- 1913. Britain and Germany have emerged alumina ceramic tool (but patented ceramic tool made by the German company Degussa in 1938). Application in Production began in 1950 year. Because of its strength, toughness is low. Over a longer period is limited to do with the 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 in the strength and toughness of the tool has been significantly improved compared to the alumina various parts can be cut at higher speeds and a larger amount of feed at. . it has been more widely used. The late 1970s and early 1980s there has been an international third generation ceramic tool - silicon nitride ceramic tools. Such ceramic cutting tools have a higher quality than composite aluminum 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 complex aluminum blades. The current annual production capacity of 14-15 million. Silica ceramic blade began to study since the mid-1970s, though because of poor performance. Can not meet demand. In recent years. With the study of high-temperature structural ceramics deepening Increases performance silicon nitride ceramic has been greatly improved. So that the silicon nitride ceramic tool developed rapidly in our country. Chen Feng difference Dongguan Hardware Products Co., ceramic knife with traditional metals: traditional metal casting tools, ceramic knives, because the surface has numerous pores, so when cooking soup ingredients will remain in the pores of the ceramic knife Price, and when the food ingredients metal tool will trace metal elements, ceramic knife machining, forming a metallic taste or smell; and ceramic knives density is quite high, nonporous surfaces and ceramic materials development, there will be no odor or metallic taste ceramic knife machining, Chen Feng Hardware (certified), ceramic knife provided by the Dongguan City Hardware Products Co., Ltd. Chen Feng. Dongguan City, Chen Feng Hardware Co., Ltd. (www.chenfengdg.com/) is a professional, "metal stamping, kitchen knives, injection molding, CNC machining, automotive interior parts" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Chen Feng tool" brand has a good reputation. We adhere to the "service first, customer first" principle, so Chen Feng Hardware win the trust of customers in numerous household hardware, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!