Heat treatment and grinding method in kitchen knife manufacturing process

Abstract

The invention relates to a heat treatment and grinding method in a kitchen knife manufacturing process, and the heat treatment and grinding method includes a heat treatment process and a grinding process. According to the method, an ordinary steel plate and V steel are compounded by argon arc welding to form a knife blank, and by quenching in specific time and at specific temperature and tempering in specific time and at specific temperature, the hardness and toughness of the knife blank are improved, internal stress, deformability and brittleness of the knife blank are eliminated, edge grinding of the knife blank is fully completed by hand, the edge grinding is very fine, although the processing time is slightly increased, service life and exquisite degree of a prepared kitchen knife are much higher than that of a traditional full steel kitchen knife, the sale profit is higher, and the economic income of manufacturers is improved.

Description

technical field [0001] The invention belongs to the technical field of kitchen knife manufacturing, in particular to a heat treatment and grinding method in the kitchen knife manufacturing process. Background technique [0002] A kitchen knife is a kind of knife. A kitchen knife with a thinner and sharper edge can be used to cut vegetables or meat, while a kitchen knife with a thicker and blunter edge can be used to cut bones. Generally speaking, the materials used in the kitchen knife must have certain properties. Hardness, toughness and corrosion resistance. Now common materials include stainless steel, 3Cr13 special steel, etc. These materials need to be heat treated after forming, including quenching and tempering. The purpose is to increase the hardness and toughness of the kitchen knife, eliminate the internal stress in the tissue, reduce the deformation of the kitchen knife, and eliminate brittleness. For example, a common all-steel kitchen knife needs to be kept at...

AI Technical Summary

Problems solved by technology

For example, a common all-steel kitchen knife needs to be kept at 1050 degrees Celsius for 5 to 6 minutes after forming, and then tempered at 150 to 200 degrees Celsius to grind the cutting edge to obtain the finished product. The grinding of the cutting edge is done by machine , but this kind of heat treatment and grinding is only applicable to ordinary all-steel kitchen knives. The clamped steel knives made of newer V gold steel materials cannot use the above method. When manufacturers manufacture V gold steel clamped steel knives, The heat treatment conditions are very random, and the grinding is also done by machine. The hardness, toughness, shape and durability of the finished kitchen knife are poor.