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Knife manufacturing method

A production method and technology of knives, applied in knives, household appliances, kitchen utensils, etc., can solve the problems of easy dullness and laborious cutting.

Active Publication Date: 2016-11-09
季长强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technical solution only solves the problem of the blade strength of the sword. The front edge of the blade is a straight line like an ordinary sword. During use, the cutting edge and the object to be cut are cut by pressure. It also dulls easily and requires frequent sharpening to keep the edge sharp

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: Referring to Figure 1, the method for making a knife proposed by the present invention is used in the production of traditional swords. and wrought iron (about 0.2% carbon content) materials, place the hard steel inside the furnace, heat it at 800-1000 ℃ for about five to seven minutes to soften the hard steel, and use an air hammer to hammer and forge the hard steel into flat. In addition, the wrought iron is placed inside the furnace, heated at 800 - 1000 ℃ for about five to seven minutes to soften the wrought iron, and the wrought iron is hammered and forged into a plate shape with an air hammer.

[0013] The hard steel and wrought iron are heated to about 1200 ℃ to achieve a fused state, and the hard steel and wrought iron are combined into a 1:1 ratio by hammering with an air hammer, and the combined hard steel and wrought iron are integrated. The iron is heated, folded (folded in half), twisted, and forged to form a multi-layered fold; this step can...

Embodiment 2

[0016] Embodiment 2: the manufacturing method of a kind of cutting tool proposed by the present invention, when used for the production of traditional kitchen knives, the steps are as follows: first prepare hard steel (carbon content 0.5% ~ 0.8% up and down) and wrought iron (carbon content Place the hard steel inside the furnace, heat it at 800-1000 ℃ for about five to seven minutes to soften the hard steel, and use an air hammer to hammer and forge the hard steel into a flat shape. In addition, the wrought iron is placed inside the furnace, heated at 800 - 1000 ℃ for about five to seven minutes to soften the wrought iron, and the wrought iron is hammered and forged into a plate shape with an air hammer.

[0017] The hard steel and wrought iron are heated to about 1280 ℃ to achieve a fused state, and the hard steel and wrought iron are combined into a 1:1 ratio by hammering with an air hammer, and the combined hard steel and wrought iron are integrated. The iron is heated, fo...

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Abstract

The invention discloses a knife manufacturing method. The knife manufacturing method comprises the manufacturing process of forming of a rough blank of a knife, and grooves are reserved in the knife edge of the knife. The knife manufacturing method is characterized by comprising the steps that parallel inlaying and folded forging are conducted on ordinary wrought iron and a medium carbon steel bar according to the ratio of 1:1, so that a mixture with the internal structure being in a railing shape is formed; then the mixture is forged into a sheet, and strips are formed in the sheet, wherein the included angles between the strips and the long axis direction of the sheet are 55-70 degrees; and the sheet with the oblique strips is inlaid in the grooves in a knife body, heat treatment and grinding are conducted on the knife body after the sheet with the strips and the knife body are completely melted into a whole, and thus manufacturing of the knife is completed. According to the knife manufacturing method, alternate forging of steel and iron is conducted on the knife edge of the knife, and hidden sawtooth-shaped structures are formed during grinding by means of the hardness difference between steel and iron, so that a pressure sectioning process and a sawing process are achieved at the same time when the knife is used for cutting an object, and accordingly the knife edge of the knife is made extremely sharp.

Description

technical field [0001] The invention relates to a manufacturing method of a cutting tool. Background technique [0002] The production method of ordinary swords is usually: stainless steel forging, hard steel with a carbon content of 1.5%, soft steel with a carbon content of 0.3%, forged steel with a carbon content of 1.5%, and a carbon content of 0.3%. % mild steel and hard steel with a carbon content of 1.5% are overlapped and forged. Hard steel with high carbon content, made of high pressure rolling) and other materials. Among them, stainless steel has better rust resistance, but its sharpness maintenance, easy grinding and toughness are all poor. Although pure steel has good sharpness maintenance, easy grinding and toughness, it has poor corrosion resistance, and the cutting edge is easy to collapse and the blade body is easy to break. The clad steel and the blade have good sharpness maintenance, easy grinding, and toughness, and the cutting edge is not easy to collap...

Claims

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Application Information

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IPC IPC(8): B21K11/02
CPCB21K11/02
Inventor 季长强
Owner 季长强
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