Preparation method of spherical amorphous alloy powder

A technology of amorphous alloy and powder, applied in the field of preparation of spherical amorphous alloy powder, can solve the problem of low amorphous rate of spherical amorphous alloy powder

Active Publication Date: 2019-12-20
中航迈特增材科技(北京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of preparation method of spherical amorphous alloy powder, to solve the amorphous rate of spherical amorphous alloy powder obtained in the prior art low technical issues

Method used

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  • Preparation method of spherical amorphous alloy powder
  • Preparation method of spherical amorphous alloy powder
  • Preparation method of spherical amorphous alloy powder

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Embodiment 1

[0050] Pure iron, pure chromium, pure molybdenum, pure graphite, silicon, ferroboron and yttrium iron are selected, and the purity of the selected metal raw materials is higher than 99.8%. The Fe, Cr, Mo, B, C, Si and Y elements in the raw materials are proportioned according to the atomic ratio of 44:19:14:6:14:1:1 to prepare 50kg of alloy materials. If there are impurities and oxide scales on the metal surface, the metal surface can be polished with sandpaper to remove surface impurities and oxide scales and prevent the alloy composition from being affected by impurities.

[0051] When feeding, add 1 / 2 pure iron first, prepare the atomization device after feeding, first vacuumize the melting chamber to 0.1Pa, and then start heating the chemical material by means of medium frequency induction heating, keep vacuuming during the heating process, and the 1 to be added When / 2 pure iron becomes a molten liquid, add pure graphite, pure molybdenum and 1 / 2 pure chromium; finally add...

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Abstract

The invention provides a preparation method of spherical amorphous alloy powder, and relates to the technical field of amorphous alloy powder preparation, The preparation method comprises the following steps of selecting pure iron, pure chromium, pure molybdenum, pure graphite, silicon, boron iron and yttrium iron, and enabling the atomic ratio of Fe, Cr, Mo, B, C, Si and Y elements in the raw materials to satisfy the ratio range of 43.12-44.88: 18.62-19.38: 13.72-14.28: 5.88-6.12: 13.72-14.28: 0.98-1.02; smelting pure iron, pure chromium, pure molybdenum and pure graphite, and after smeltingto a molten state liquid, adding silicon, boron iron and yttrium iron together for smelting; and when all the raw materials are smelted to a molten state liquid, preparing the spherical amorphous alloy powder by using an air atomization method. In the preparation method, pure iron, pure chromium, pure molybdenum and pure graphite are fed and smelted firstly, the smelting is mainly used for fast dissolving materials, so that the oxygen increment in the material is reduced; and the silicon, the boron iron and the yttrium iron adopt a secondary feeding mode, mainly for controlling the components,the addition amount and time are precisely controlled through secondary feeding, and the burning loss of the Si, B and Y elements is reduced or avoided.

Description

technical field [0001] The invention relates to the technical field of preparation of spherical amorphous alloy powder, in particular to a preparation method of spherical amorphous alloy powder. Background technique [0002] The main feature of amorphous materials is that the three-dimensional space of atoms is arranged in a topologically disordered manner, and there are no defects such as grain boundaries and stacking faults in the structure. Therefore, it has many unique physical, chemical, and Mechanical and electromagnetic properties, such as high hardness, high strength, excellent corrosion resistance and wear resistance, etc., amorphous alloys are alloys with the above properties and characteristics. The amorphous alloy FeCrMoBCSiY is a specially developed amorphous alloy composition. Since the amorphous alloy is composed of a variety of elements, and each element reaches a certain content, a good solid solution can be formed between the alloy elements. So that the am...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08B22F1/00C22C45/02
CPCB22F9/082C22C45/02B22F2009/0848B22F2009/0824B22F1/065Y02P10/25
Inventor 周健东高正江张飞李文英陈欣杨环
Owner 中航迈特增材科技(北京)有限公司
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