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Heat treatment and grinding method in kitchen knife manufacturing process

A technology of manufacturing process and heat treatment process, used in heat treatment furnaces, manufacturing tools, heat treatment equipment, etc., can solve the problems of kitchen knife hardness, toughness, poor shape and durability of cutting edges, etc., to improve economic income, high profits, eliminate internal problems. effect of stress

Inactive Publication Date: 2014-11-12
TIANJIN MINGRUN KNIFE & SCISSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Take V gold steel as material, adopt traditional heat treatment and grinding method to manufacture 100 kitchen knives, named A, use V gold steel as material, adopt heat treatment of the present invention and grind method to manufacture 100 kitchen knives, name B.

[0032] The hardness of the kitchen knife processed by the invention is about 10 higher than that of the traditional one. Tests have proved that the service life is longer than that of the traditional kitchen knife, and the selling price is three times that of the traditional kitchen knife.

[0033] In the present invention, the ordinary steel plate and the V gold steel are combined by argon arc welding to form a knife blank, and then quenched at a specific temperature and a specific time and tempered at a specific temperature and a specific time to improve the hardness and toughness of the knife blank. The internal stress, deformation and brittleness of the knife blank are eliminated, and the edge grinding of ...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/18C21D1/18B24B3/36
Inventor 朱邦亮
Owner TIANJIN MINGRUN KNIFE & SCISSOR CO LTD
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