Preparation method of iron-nickel alloy magnetic layer on surface of stainless steel fiber

A fiber surface, iron-nickel alloy technology, applied in the field of magnetic alloy material preparation, can solve the problems of reduced magnetic permeability, low shielding performance, etc. Effect

Inactive Publication Date: 2014-06-18
TIANJIN UNIV +1
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  • Abstract
  • Description
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Problems solved by technology

However, as the frequency increases, the magnetic permeability of the iron-nickel alloy gradually decreases and tends to 1, so the shielding performance is low at higher frequencies.

Method used

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  • Preparation method of iron-nickel alloy magnetic layer on surface of stainless steel fiber
  • Preparation method of iron-nickel alloy magnetic layer on surface of stainless steel fiber
  • Preparation method of iron-nickel alloy magnetic layer on surface of stainless steel fiber

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preparation example Construction

[0022] The preparation method of the electroplating iron-nickel alloy magnetic layer on the surface of the stainless steel fiber mainly comprises: pretreatment of the stainless steel fiber, preparation of the iron-nickel alloy electroplating solution, electroplating of the stainless steel fiber, post-treatment of the electroplating of the stainless steel fiber.

[0023] The iron-nickel alloy electroplating solution used in the present invention is made up according to following component and concentration: nickel sulfate 130~220g / L, nickel chloride 25~60g / L, ferrous sulfate 20~100g / L, sodium citrate 15~30g / L, saccharin 3~5g / L, boric acid 30~50g / L, sodium benzene sulfinate 0.3~0.5g / L; the electroplating solution is prepared according to the following steps: first stir and dissolve nickel sulfate and nickel chloride in 50 Get solution A in deionized water at ~60°C, set aside; then dissolve ferrous sulfate in another beaker at 40°C, pour it into solution A, stir and mix evenly to...

example 1

[0026] The preparation of the iron-nickel alloy magnetic layer electroplated on the surface of stainless steel fiber includes:

[0027] 1. Pretreatment of stainless steel fiber

[0028] Cut the 4K stainless steel fiber bundle with a single filament diameter of 11 μm (a bundle of 4000 stainless steel fiber monofilaments) into a length of 5 cm, and place it in absolute ethanol at room temperature for ultrasound (ultrasonic instrument produced by Kunshan Hechuang Ultrasonic Instrument Co., Ltd. , model Kh5200E) for 20 minutes, after ultrasonic cleaning, rinse with deionized water 4 times; then put the rinsed fibers in 60°C NaOH (60g / L) solution for 10 minutes, and then wash them with 40°C and room temperature Rinse 4 times with deionized water; then place the rinsed fiber in HNO at room temperature 3 (80mL / L) solution for ultrasonication for 5 minutes, and finally rinsed with deionized water for 4 times, dried naturally and placed for plating.

[0029] 2. Preparation of electro...

example 2

[0042] The preparation of the iron-nickel alloy magnetic layer electroplated on the surface of stainless steel fiber includes:

[0043] 1. Pretreatment of stainless steel fiber

[0044] Cut the 4K stainless steel fiber bundle with a single filament diameter of 11 μm (a bundle of 4000 stainless steel fiber monofilaments) into a length of 5 cm, and place it in absolute ethanol at room temperature for ultrasound (ultrasonic instrument produced by Kunshan Hechuang Ultrasonic Instrument Co., Ltd. , model Kh5200E) for 20 minutes, after ultrasonic cleaning, rinse with deionized water 4 times; then put the rinsed fibers in 60°C NaOH (60g / L) solution for 10 minutes, and then wash them with 40°C and room temperature Rinse 4 times with deionized water respectively; then ultrasonicate the rinsed fibers in HN 3 (80mL / L) solution at room temperature for 5min, and finally rinse 4 times with deionized water, dry naturally and place to be plated.

[0045] 2. Preparation of iron-nickel alloy s...

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Abstract

The invention relates to a preparation method of an iron-nickel alloy magnetic layer on the surface of a stainless steel fiber. The preparation method comprises the following steps: preprocessing the stainless steel fiber, electrically plating the stainless steel fiber and post-processing the stainless steel fiber after electrically plating. The method comprises the following specific steps of preparation of an electroplate liquid and carrying out XRD (X-Ray Diffraction) analysis, surface shape and surface component EDS (Energy Dispersive Spectrometer) analysis, notch morphology (Scanning Electron Microscope) observation and magnetic VSM (Vector Space Model) analysis after electrically plating the iron-nickel alloy magnetic layer. By adopting an electroplating technique, the iron-nickel alloy magnetic layer with excellent soft magnetic properties is deposited on the stainless steel fiber, so that components and the soft magnetic properties of the iron-nickel alloy magnetic layer are adjusted, and thus conductive properties and magnetic properties of the fiber are remarkably improved; the iron-nickel alloy magnetic layer has excellent comprehensive electromagnetic properties, so that the iron-nickel alloy magnetic layer has good performances of reflecting and absorbing electromagnetic waves; meanwhile, the iron-nickel alloy layer is simple in process, convenient to operate, low in cost and capable of realizing continuous production, and can be expected to be well used in electromagnetic shielding fields with wide frequency bands.

Description

technical field [0001] The invention belongs to the field of magnetic alloy material preparation, and in particular relates to a preparation method of an iron-nickel alloy magnetic layer on stainless steel fibers. Background technique [0002] The principle of electromagnetic shielding is to use the reflection and guiding effect of the conductor material on the electromagnetic energy flow to generate a current and magnetic polarization opposite to the source electromagnetic field inside the conductor material, thereby weakening the radiation effect of the source electromagnetic field. The rapid development of electronic technology has brought many conveniences to life, but the electromagnetic pollution it produces will not only affect the electromagnetic compatibility of surrounding electronic products, but also have serious damage to the reproductive system, immune system and nervous system of the human body and other organisms. Hazards have become the fourth largest source...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D7/06C25D3/56
Inventor 陈亮王玉林张全洪赵家兴李俊姣
Owner TIANJIN UNIV
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