Preparation method of amorphous alloy fiber and device for implementing the preparation method

A technology of amorphous alloy fiber and amorphous alloy, which is applied in the field of preparation of amorphous alloy fiber, can solve the problems of limited area shrinkage of wire material, difficulty in preparing amorphous fiber, large anisotropy of wire material, etc., and achieve cost Low cost, simple structure, simple and easy method

Inactive Publication Date: 2015-07-15
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
View PDF8 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many deficiencies in the cold drawing process: First, the plasticity of amorphous alloys at room temperature is usually small, and the reduction of area of ​​the wire after a single cold drawing is limited, which means that if a relatively thin wire is prepared It needs to go through multiple processes; secondly, due to the

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of amorphous alloy fiber and device for implementing the preparation method
  • Preparation method of amorphous alloy fiber and device for implementing the preparation method
  • Preparation method of amorphous alloy fiber and device for implementing the preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In the present embodiment, the molecular formula of the amorphous alloy material is (Co 0.5 Fe 0.5 ) 62 Nb 8 B 30 .

[0050] First, the amorphous alloy material is prepared as an amorphous alloy rod, and the preparation method is as follows:

[0051] 1. After the raw materials Co, Fe, Nb and B with a purity of not less than 99.5wt% are prepared in a molar ratio of 31:31:8:30, they are mixed and smelted in an electric arc furnace with an argon atmosphere for 3 to 4 times. After cooling (Co 0.5 Fe 0.5 ) 62 Nb 8 B 30 Master alloy ingot.

[0052] 2. Using a vacuum copper mold casting method, the master alloy ingot was re-melted to obtain a master alloy melt, and then the master alloy melt was sprayed into a copper mold to obtain a bulk amorphous alloy rod sample with a diameter of 1 mm.

[0053] The above-mentioned amorphous alloy rod sample is tested as follows:

[0054] (1) X-ray diffraction (XRD) was used to analyze the structure of the amorphous alloy rod. S...

Embodiment 2

[0077] In this embodiment, the amorphous alloy material is completely the same as that in Embodiment 1.

[0078] The superplasticity of the amorphous alloy material is used to prepare the amorphous alloy fiber. Same as embodiment 1, also adopt such as figure 1 The vacuum resistance heating wire drawing equipment shown.

[0079] Firstly, the amorphous alloy material is prepared as an amorphous alloy wire, and the preparation method is exactly the same as that in Example 1.

[0080] Different from the examples, in order to control the diameter of the fiber more accurately, a wire drawing die is added in the vacuum resistance heating wire drawing equipment. The diameter of the inner hole of the wire drawing die is 40 μm, and the wire drawing die is fixed in the quartz tube and located in the sealing plug upper part. One end of the amorphous alloy material is fixed by a clamp, and the other end is first corroded and thinned so that its diameter is less than 40 μm, then passes t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Saturation magnetizationaaaaaaaaaa
Coercivityaaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method of an amorphous alloy fiber and a device for implementing the preparation method. The preparation method utilizes superplasticity of an amorphous alloy material. The preparation method comprises the following steps of fixing one end of an amorphous alloy material such as a bar, a wire or a band, connecting the other free end of the amorphous alloy material to an external force supplement device, arranging a heater for heating the amorphous alloy material between the two ends, when the temperature of the amorphous alloy material is in a sub-cooled liquid phase region range from a glass transition temperature to an initial crystallization temperature and is increased to a softening temperature, starting the external force supplement device, and slowly drawing the free end by the external force supplement device so that the amorphous alloy material produces plastic deformation and forms amorphous alloy fibers. The preparation method is simple and feasible, has a low cost, can prepare the amorphous alloy fibers with small diameters and can widen an amorphous alloy fiber application scope.

Description

technical field [0001] The invention belongs to the field of amorphous alloys, and in particular relates to a preparation method of amorphous alloy fibers and equipment for realizing the preparation method. Background technique [0002] In 1960, American scientist Duwez first prepared Au by spray gun cooling method. 75 Si 25 Amorphous alloys (W.Klement, R.H Wilens, and P.Duwez, Nature., 181 (1960) 869-870), since then humans have come into contact with amorphous alloys, and with the help of modern scientific theories and experimental methods, they have realized that amorphous alloys Due to the lack of defects such as grain boundaries, the alloy has excellent properties that traditional crystalline alloy materials do not have, such as: high fracture strength, high hardness, high wear resistance and high corrosion resistance. In addition, certain Fe-based, Co-based or Ni-based amorphous alloys also exhibit excellent magnetic properties. For example, the giant magnetoimpedan...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B21C37/04C22C45/00
CPCC22C45/008B21C37/047C22C1/11
Inventor 满其奎强健常春涛王新敏李润伟
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap