Iron-nickel-phosphorus amorphous alloy composite fiber and preparation method

A composite fiber and amorphous alloy technology, applied in the field of metal composite fibers, can solve problems such as size limitation and achieve the effect of reducing weight

Inactive Publication Date: 2018-07-10
罗奕兵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The idea of ​​the liquid phase method is to melt the master alloy uniformly first, and then adopt the method of purification and rapid cooling to rapidly cool the alloy liquid in a short period of time. The main advantages of this type of method are that the preparation is simple and the cycle is short. The size is largely limited by the ability of the alloy to form amorphous

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Forming process of φ0.02 mm iron-nickel-phosphorus composite fiber

[0024] (1) Select φ0.01 mm polypropylene continuous fiber, and use plastic frame for wiring, so that the fiber spacing is 1.5mm;

[0025] (2) Surface treatment of fibers: first use 10%wt sodium hydroxide solution for chemical degreasing for 5min; The sensitization treatment time is 20 minutes; the sensitization solution is composed of tin chloride 8g / L, hydrochloric acid 40ml / L, and the sensitization treatment time is 3 minutes; silver nitrate and ammonia solution are used to activate the fiber surface, and the activated fiber is reduced by formaldehyde solution;

[0026] (3) Electroless plating of treated fibers, the solution composition is: ferrous sulfate 0.3mol / L, nickel chloride 0.1mol / L, tartaric acid 0.35mol / L, sodium hypophosphite 0.2mol / L, sodium borohydride 0.05mol / L, the pH value of the titrated ammonia solution is 8.5, and the electroless plating time is 1min;

[0027] (4) Bru...

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PUM

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Abstract

The invention relates to an iron-nickel-phosphorus amorphous alloy composite fiber. The composite fiber is characterized in that the composite fiber has a circular section, the composite fiber coatinglayer adopts an iron-nickel-phosphorus amorphous alloy, the specific ingredients comprise 55-90% of Fe, 5-20% of Ni and 5-25% of P, the composite fiber core wire material adopts polymer, the outer diameter of the composite fiber is 0.01-0.1 mm, and the diameter of a composite fiber core wire is 0.005-0.08 mm. The composite fiber preparation method comprises the steps of wiring, fiber surface treatment, iron-nickel-phosphorus alloy chemical plating of activated fiber and iron-nickel-phosphorus alloy chemical plating of a fiber brush.

Description

technical field [0001] The invention relates to the field of metal composite fibers, in particular to an iron-nickel-phosphorus amorphous alloy composite fiber and a preparation method thereof. Background technique [0002] The functions of soft magnetic materials are mainly magnetic conduction, conversion and transmission of electromagnetic energy. At present, the application of soft magnetic materials can be roughly divided into four categories: alloy thin strips or sheets; amorphous alloy thin strips; body. Amorphous alloys based on transition metals (iron, cobalt, nickel) have excellent soft magnetic properties, high saturation magnetic induction and low AC loss, and can be widely used in high and low frequency transformers (partially replacing silicon steel sheets and permalloys), Magnetic sensors, recording heads, magnetic shielding materials, etc. With the rapid development of electronic engineering technology, the research and development of advanced soft magnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/14C22C45/02C23C18/16C23C18/50
CPCC22C49/14C22C45/02C23C18/1653C23C18/50
Inventor 罗奕兵
Owner 罗奕兵
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