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A kind of knife and preparation method thereof

A tool and tool body technology, applied in the field of tool manufacturing, can solve the problems of incomplete replication, difficulty in mass production, and long preparation process, etc., and achieve the effects of shortening production time, improving sharpness, and improving economic benefits

Active Publication Date: 2020-08-18
TIANJIAO HOUSEHOLD MFG LTD GUANGDONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain the pattern, many times of forging are required, and each pattern is unique and cannot be completely copied
Although this method can imitate Damascus knives, the preparation process of this method is too long, the production cost is high, and it is difficult to mass-produce due to the uniqueness of the pattern.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] According to the mass percentage, Mo: 4.5%, V: 1.0%, Cr: 17%, and the balance is Fe to prepare alloy powder.

[0023] The alloy powder and binder are added into the internal mixer for mixing and banburying to form a mixed material. The banburying temperature is 190° C. and the banburying time is 45 minutes. The mixed material is in powder form. In this embodiment, the binder is polyoxymethylene.

[0024] Cr: 17%, Ni: 3%, Mo: 3%, Nb: 3.5%, Mn: 5.0%, Ti: 0.5%, N: 0.25%, Si: 1.0%, C: 1.1%, Fe The balance is used to prepare steel ingots. The steel ingot is forged, annealed and hot rolled in sequence to prepare the cutter body. The mixed material is injected multiple times on both sides of the cutter body through the injection machine to form a composite injection layer. Then degreasing, sintering, forging, annealing and hot rolling are carried out in sequence to form a knife blank, and then the knife blank is polished and sharpened in turn to obtain a finished knife.

...

Embodiment 2

[0027] According to the mass percentage, Mo: 1.5%, V: 4.0%, Cr: 12%, and the balance is Fe to prepare alloy powder.

[0028] The alloy powder and binder are added into the internal mixer for mixing and banburying to form a mixed material. The banburying temperature is 190° C. and the banburying time is 45 minutes. The mixed material is in powder form. In this embodiment, the binder is polyoxymethylene.

[0029] Cr: 23%, Ni: 8%, Mo: 5%, Nb: 1.5%, Mn: 3.2%, Ti: 0.1%, N: 0.35%, Si: 0.5%, C: 0.1%, Fe The balance is used to prepare steel ingots. The steel ingot is forged, annealed and hot rolled in sequence to prepare the cutter body. The mixed material is injected multiple times on both sides of the cutter body through the injection machine to form a composite injection layer. Then degreasing, sintering, forging, annealing and hot rolling are carried out in sequence to form a knife blank, and then the knife blank is polished and sharpened in turn to obtain a finished knife.

...

Embodiment 3

[0032] According to mass percentage, Mo: 6.6%, V: 6.0%, Cr: 14%, and the balance is Fe to prepare alloy powder.

[0033] The alloy powder and binder are added into the internal mixer for mixing and banburying to form a mixed material. The banburying temperature is 190° C. and the banburying time is 45 minutes. The mixed material is in powder form. In this embodiment, the binder is polyoxymethylene.

[0034] Cr: 25%, Ni: 5%, Mo: 2%, Nb: 2%, Mn: 1.0%, Ti: 1.0%, N: 0.45%, Si: 1.5%, C: 1.5%, Fe The balance is used to prepare steel ingots. The steel ingot is forged, annealed and hot rolled in sequence to prepare the cutter body. The mixed material is injected multiple times on both sides of the cutter body through the injection machine to form a composite injection layer. Then degreasing, sintering, forging, annealing and hot rolling are carried out in sequence to form a knife blank, and then the knife blank is polished and sharpened in turn to obtain a finished knife.

[0035]...

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PUM

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Abstract

The invention provides a novel cutter and a preparation method thereof, and relates to the technical field of cutter manufacturing. The preparation method comprises the following steps of, preparing following alloy powder of, in mass percentage, 1.5%-6.6% of Mo, 1.0%-6.0% of V, 12.0%-17% of Cr, and balance Fe; mixing the alloy powder with binding agents for banburying so as to form mixed materials; preparing a cutter body, and placing the cutter body in a mold of an injection molding machine; injecting the mixed materials on the two side surfaces of the cutter body through the injection molding machine; carrying out degreasing, sintering, forging, annealing and hot rolling in sequence so as to form a cutter blank; and polishing and sharpening the cutter blank. The cutter comprises a cutter body and an injection layer. The cutter comprises the cutter body and an injection layer and is prepared by adopting the preparation method; and the preparation method is used for preparing the cutter with floral designs, and the cutter has the characteristics of short production time and large batch production.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a cutting tool and a preparation method thereof. Background technique [0002] Damascus knives are made of Uzi steel ingots and have casting patterns, usually machetes. Its biggest feature is that the blade is covered with various patterns, which are formed in casting. For quite a long time in the past, the unique smelting technology and casting method of Damascus knives have always been technical secrets and were not known to the outside world. [0003] In order to imitate Damascus knives, Sweden first developed the "Ruifen" metal powder material, and successfully imitated Damascus knives by using powder metallurgy. In the method, "Ruifen" is first pressed and sintered by hot isostatic pressing to form a block, and then forged, an amorphous alloy is added while forging, and the block and the amorphous alloy are forged and rolled together. Since the bulk material and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/58C22C38/50C22C38/48C22C38/44C22C38/04C22C38/02B22F3/22B22F5/00
CPCB22F3/225B22F5/00B22F2005/001C22C38/001C22C38/02C22C38/04C22C38/44C22C38/48C22C38/50C22C38/58
Inventor 莫仕栋吴远谋谢月光李映川陈六庆吴启团
Owner TIANJIAO HOUSEHOLD MFG LTD GUANGDONG