What is the role of the knife?

The Cao Zhengxing kitchen knife is a traditional brand-name product of Wuhan handicrafts in Hubei province, which is famous for its "thin front and thick back, flat blade, cutting front and cutting back, sharp edge, cutting ginger without silk, cutting meat without tendons, and chopping bone without curling mouth".

Cao Zhengxing chopper founder Cao Yuehai, Huangpi County Haojiamiao Caowan people, in the Qing dynasty Daoguang twenty years (A.D. 1840) in the first month, the preparation of a plate line furnace forging chopper in Han, take the mark for "Cao Zhengxing". Tongzhi six years (A.D. 1867), run by the second generation of the Cao family. The following year, in Hankou Zhang Mei Zhi Lane opened Cao Zhengxing knife store, "pure steel fire, the real price, clip ash roll mouth, package off back to change" and gained the trust of customers, business is extremely prosperous. In the early years of the Republic of China, passed to Cao's third generation, change the way of business, a large number of acquisitions of knife blanks, after shaping, quenching, engraved on the Cao Zhengxing brand, higher than the counterparts of the price of 30% to 50% of the price of the sale of the peak season, the day to obtain a net profit of 60 silver dollars. Later, because of Cao's descendants spendthrift, business decline. Wuhan on the eve of liberation, by the fourth generation of Cao Wenzhi fund-raising to resume business, the final due to a shortage of funds, barely support the family.

In 1955, the cooperative movement, the old second house Cao Zhengxing, Cao Zhengda, Cao Zhengtai and Cao Zhengxing, Tang Daxing, etc. Formed the fourth cutter production cooperative. In May of the same year, the name was changed to "Wuhan Cao Zhengxing Knife Production Cooperative", with 39 employees, 6 plates of red stove. 1959, the quality of kitchen knives among the ranks of the national advanced, won the title of red flag unit in Hubei Province, and attended the National Qunyin General Assembly. 1961 to the combination of mechanical production and traditional craftsmanship from the material, forging, to the cold, gradually formed into a production line production. Gradually formed a streamlined production; in the material also changed to the use of composite flat steel, changing the red furnace steel production process for the red rolling billet, gas hammer forging instead of manual forging. The following year, the city handicrafts bureau of Cao Zhengxing kitchen knife for quality appraisal: knife sharp, steel fire good, knife surface light, handle firm, more varieties, and was named a brand-name products. The products are marketed in Inner Mongolia, Shaanxi, Guangxi and other places, and also exported to Hong Kong, Macao, Japan, Mauritius and other countries and regions, with an annual output capacity of 120,000 knives. From 1961 for five consecutive years in the province of the same industry in all previous evaluations were awarded first place, listed as the national quality kitchen knife.

When Cao Zhengxing started his business, he developed the conical plate chopper which is thin at the front and thick at the back, cut at the front and chop at the back, and cut and chop at the same time, according to the Hubei people's custom of loving simmering soup with pork and beef bones. The material is exquisite, choose the United States sword brand steel (about when 50 # carbon steel), steel quality, moderate hardness, forging the knife both rigid and soft, sharp blade is not easy to crash or roll mouth. In the operation, the knife board on both sides to go hammer, the formation of "go steady, clamping steel tightly, affixed to the flat, the knife mouth is uniform, green steel and white iron clearly" as the characteristics of the technical operation methods. And summarize a set of "three steel (test steel, forging steel, clamping steel)," "four mouth" (shovel mouth, lifting the mouth

, straight mouth, grinding mouth), "a quenching" (mud after the back of the flat burn knife and then quenched in water) of the traditional production process. The company was founded on the basis of the traditional production process of "one quenching".

After the establishment of the cooperative, including Hankou, each specializing in the five knife store, the second and third house Cao Zhengxing famous for kitchen knives, Cao Zhengwen famous for butchering knives, Cao Zhengda long in kitchen knives, Cao Zhengtai in the book of simple knives. And gather Wuhan knife and scissors industry in the prestige of Tang Xianliu, Lei Yuanfu, Cao Xinghan, Hu Jiawan, Dai Guobao, Liu Youqing and other master craftsmen, to give play to their technical advantages? But since the 70s, Cao Zhengxing knife factory development is slow. Shortage of funds, small plant, outdated and backward equipment. By the end of 1985, Cao Zhengxing Knife Factory has 134 employees, plant construction area of 1,800 square meters, a variety of special-purpose, general-purpose equipment, 42 sets (sets), 50% of the sick operation, the only one homemade gear shears have been used for more than two decades. Production varieties of civil kitchen knives, restaurant kitchen knives, miscellaneous knives, butcher knives, industrial knives and various shaped knives six categories, more than 300 kinds of specifications, the annual output capacity of 315,000.

Located in Wuhan City, Hubei Province, Hankou Jianghan North Road, Wuhan City, Wuhan City, Cao Zhengxing Knife Factory invented a combination of kitchen knives is in 1988 to apply for a patent success. Combination of kitchen knives is the improvement of the knife, in the existing one-piece kitchen knife process is complex and backward, the old kitchen knife can not adapt to cut cutting digging and cutting a variety of requirements. The new combination of kitchen knife is the blade and handle made of assembled structure, is through the blade on the assembly holes and handle body on the fixed pin to complete. Such a blade process is simple, easy to mechanize the production of large quantities. This combination of kitchen knives with different blades can meet the different requirements for use.