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A kind of amorphous alloy knife and its manufacturing method

A technology of amorphous alloys and production methods, which can be applied to other manufacturing equipment/tools, manufacturing tools, etc., can solve the problems of easy edge collapse and insufficient sharpness, and achieve the effect of not easy edge collapse

Active Publication Date: 2019-12-17
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above deficiencies in the prior art, the purpose of the present invention is to provide an amorphous alloy knife and its manufacturing method, aiming to solve the problem that the existing knife is not sharp enough and requires heat treatment during the production process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 Zr 63.78 Cu 14.72 Ni 10 Al 10 Nb 1.5 Production of Amorphous Seal Carving Knife

[0045] (1) According to the above atomic percentage, add the alloy raw materials to a vacuum of 5*10 -4 In the electric arc furnace of Pa, it is filled with Ar gas protection for smelting. The alloy is turned over every time it is smelted, and the number of smelting is more than 4 times to ensure that the composition of the alloy is uniform.

[0046] (2) Put the steel mold in liquid nitrogen to cool in advance, then press the liquid alloy into the steel mold at a speed of 5m / s, and then press 5*10 3 Cool at a rate of ℃ / s, open the steel mold, and obtain an amorphous alloy knife blank, wherein the inner wall of the steel mold is coated with boron nitride paint.

[0047] (3) To remove burrs, under the cooling of circulating water, grind the blade of the knife blank back and forth along the contour line of the blade at a blade inclination angle of 30° (28-32° is acceptable). ...

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PUM

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Abstract

The invention discloses an amorphous alloy knife and a manufacturing method thereof. The manufacturing method comprises the following steps that A, liquid mother alloy for preparing amorphous alloy issmelted uniformly, is pressed into a steel mold at the speed of 1.0-10 m / s, and then is cooled at the speed of 10-104 DEG C / s, and an amorphous alloy knife blank is obtained; and B, the amorphous alloy knife blank is subjected to deburring, under cooling of circulating water, a blade of the alloy cutter blank is ground in the order from coarse grinding to fine grinding, and the amorphous alloy knife is obtained. According to the amorphous alloy knife and the manufacturing method thereof, the selected material is the amorphous alloy, the amorphous alloy has no grain boundary, the non-uniformity of organization structure is embodied in the nano scale, the amorphous alloy and a crystalline material have different differences in the micro-scale, so that when the blade of the amorphous alloy knife is ground, the mechanical property is isotropic, edge breakage is not prone to occur, and a sharper blade can be made; and in the whole manufacturing process, the circulating water is needed forcooling so as to prevent the amorphous alloy from crystallizing, and heat treatment does not need to be carried out again.

Description

technical field [0001] The invention relates to the field of knives, in particular to an amorphous alloy knife and a manufacturing method thereof. Background technique [0002] At present, most of the knives on the market are made of alloys such as white steel, tungsten steel or manganese steel, and these materials are all crystal materials. On the one hand, the size of grains in crystals is generally at the micron level, and on the micron scale, there are differences in the mechanical properties of grains and grain boundaries. The grain falls off as a whole, that is, the edge collapses, so that the produced knife is not sharp enough; on the other hand, the existing knife needs to be heat treated during the sharpening process to improve the mechanical properties of the knife, and the energy consumption is high. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] In view of the shortcomings of the above-mentioned ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D17/00C22C45/10C22C45/00B24B1/00B24B3/54B24B3/36
CPCB22D17/00B24B1/00B24B3/36B24B3/54C22C45/001C22C45/10
Inventor 谢盛辉涂先猛彭广强王东辉
Owner SHENZHEN UNIV