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A kind of amorphous material and its preparation method and application

A technology of amorphous materials and amorphous alloys, applied in the field of materials, can solve the problems of brittle fracture, high price, affecting production efficiency and product qualification rate, etc., and achieve the effect of low preparation cost and meeting process requirements

Active Publication Date: 2018-05-15
GUANGZHOU QIDA MATERIAL & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process and heat treatment of 2826MB amorphous material are prone to brittle fracture, which seriously affects production efficiency and product qualification rate
Although the preparation process and heat treatment process of FeNiCoSiB alloy are not prone to brittle fracture, the price is significantly higher than that of 2826MB

Method used

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  • A kind of amorphous material and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The chemical formula of the amorphous material of the present invention is Fe a co b Ni c Mo d Si e B f , where a+b+c+c+d+e+f=100at%, a=38.6at%; b=1.5at%; c=38.35at%; d=0.4at%; e=0.25at%; f = 12.3at%.

[0024] The preparation method of the above-mentioned amorphous material, the method comprises the following steps:

[0025] (1) Put the initial raw materials Fe, Ni, Co, Si, Mo and B into an electric arc melting furnace according to the above ratio and melt at 1450°C for 60 minutes, then cast at 1000°C and cool to obtain a master alloy ingot;

[0026] (2) Put the master alloy ingot obtained in step (1) into a quartz crucible, and carry out vacuum melting to the master alloy ingot by adopting high-frequency induction vacuum melting technology, the vacuum melting temperature is 1150°C, and the holding time is 30min, The vacuum degree of the vacuum smelting is 0.1×10 -2 Pa, get the melt;

[0027] (3) The melt obtained in step (2) is rapidly cooled by a single-rolle...

Embodiment 2

[0031] The chemical formula of the amorphous material of the present invention is Fe a co b Ni c Mo d Si e B f , where a+b+c+c+d+e+f=100at%, a=35.8at%; b=4.5at%; c=39.05at%; d=1.2at%; e=0.75at%; f = 12.9at%.

[0032] The preparation method of the above-mentioned amorphous material, the method comprises the following steps:

[0033] (1) Put the initial raw materials Fe, Ni, Co, Si, Mo and B into an electric arc melting furnace according to the above ratio and melt at 1500°C for 45 minutes, then pour at 1600°C and cool to obtain a master alloy ingot;

[0034] (2) Put the master alloy ingot obtained in step (1) into a quartz crucible, and carry out vacuum melting to the master alloy ingot by using high-frequency induction vacuum melting technology, the vacuum melting temperature is 1300° C., and the holding time is 10 min. The vacuum degree of the vacuum smelting is 0.2×10 -2 Pa, get the melt;

[0035] (3) The melt obtained in step (2) is rapidly cooled by a single-rolle...

Embodiment 3

[0039] The chemical formula of the amorphous material of the present invention is Fe a co b Ni c Mo d Si e B f , where a+b+c+c+d+e+f=100at%, a=33at%; b=7.5at%; c=39.75at%; d=2at%; e=1.25at%; f= 13.5at%.

[0040] The preparation method of the above-mentioned amorphous material, the method comprises the following steps:

[0041] (1) Put the initial raw materials Fe, Ni, Co, Si, Mo and B into an electric arc melting furnace according to the above ratio and melt at 1550°C for 40 minutes, then pour and cool at 1100°C to obtain a master alloy ingot;

[0042] (2) Put the master alloy ingot obtained in step (1) into a quartz crucible, and carry out vacuum melting to the master alloy ingot by adopting high-frequency induction vacuum melting technology, the vacuum melting temperature is 1200°C, and the holding time is 20min, The vacuum degree of the vacuum smelting is 0.3×10 -2 Pa, get the melt;

[0043] (3) The melt obtained in step (2) is rapidly cooled by a single-roller melt ...

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Abstract

The invention provides an amorphous material, the general chemical formula of the amorphous material is FeaCobNicModSieBf, where a+b+c+c+d+e+f=100at%, a=26~40at%; b= 0~15at%; c=38~41.5at%; d=0~4at%; e=0~2.5at%; f=12~15at%. The amorphous material can not only meet the performance requirements of the acoustic-magnetic sensor, but also meet the process requirements, and the preparation cost is relatively low.

Description

technical field [0001] The invention relates to a material, in particular to an amorphous material and its preparation method and application. Background technique [0002] The acousto-magnetic anti-theft system is one of the most advanced electronic anti-theft systems in the world based on the acousto-magnetic sensing technology. Its core component, the acousto-magnetic anti-theft label, has a huge demand and a broad market prospect. The acousto-magnetic system utilizes the physical principle that the tuning fork resonates only when the oscillation frequency is the same, achieving almost zero false alarm operation. The acousto-magnetic label is the core component of the acousto-magnetic anti-theft system, usually composed of a box body, a cover film, an amorphous resonant sheet and a bias magnetic sheet. The length of the magnetic material changes under the action of an alternating magnetic field, thereby generating vibration or sound waves. This material can convert elect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C45/02C22C45/04G08B13/24
CPCG08B13/24C22C33/003C22C45/008C22C1/11
Inventor 王志远王希楠
Owner GUANGZHOU QIDA MATERIAL & TECH