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Method for preparing Fe-Ni, Fi-Ni-Cr alloy foil

A technology of nickel alloy and chromium alloy, applied in the electrolysis process, electroforming, etc., can solve the problems of width and thickness limitation, product performance impact, poor operating environment, etc., and achieve the effect of easy maintenance, short production process and low cost

Inactive Publication Date: 2005-07-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the iron-nickel alloy foil produced in China is made by melting, pouring into alloy and then rolling repeatedly. The process is relatively complicated, the yield is low, the cost is high, and the width and thickness are limited, and the product performance is also affected; "Research on Electrocast Iron and Iron Alloy Foil" was published in "Material Protection" 1990, 23(7): 12-15, which reported the use of full chloride system electrocast iron and iron-nickel alloy foil. The disadvantage of this system is its corrosion resistance. Strong, high temperature, poor operating environment, the foil width is only 200mm; and the report of electrodeposited iron-nickel-chromium ternary alloy foil has not been seen in China.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Using the process conditions shown in the table below, Fe with a thickness of 50 μm and a width of 0.6 m has been produced that meets the above requirements. 55.2 Ni 44.8 alloy foil;

[0019] project

Embodiment 2

[0021] Add CrCl to the above electrolyte 3 ·6H 2 O20g / L, Fe with a width of 0.6m and a thickness of 45μm was produced under the same process conditions 54.6 Ni 44.1 Cr 1.3 Ternary alloy foil.

[0022] project

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PUM

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Abstract

The present invention relates to the field of electrolysis process for depositing metal, and features that Fe-Ni or Fe-Ni-Cr alloy foil is produced through electrolytic deposition in a water solution system of sulfate and chloride or sulfate, chloride and trivalent chromium. The electrolytic production process of alloy foil has short flow path, stable electrolyte, easy maintenance, simple waste water treatment, easy control of foil components and thickness, low cost and other advantages. The alloy foil has its physical and chemical performance, especially magnetic performance, higher than that produced through rolling process, and the produced Fe-Ni and Fe-Ni-Cr alloy foil may be used in electronic, telecom and electric industry as excellent soft magnetic material, cell skeleton material and packing material.

Description

Technical field: [0001] The technology of the invention relates to the field of electrolytic metal deposition, in particular to electrolytic deposition in a sulfate-chloride or sulfate-chloride-trivalent chromium aqueous solution system to produce iron-nickel or iron-nickel-chromium alloy foil. Background technique: [0002] At present, the iron-nickel alloy foil produced in China is made by melting, pouring into alloy and then rolling repeatedly. The process is relatively complicated, the yield is low, the cost is high, and the width and thickness are limited, and the product performance is also affected; "Research on Electrocast Iron and Iron Alloy Foil" was published in "Material Protection" 1990, 23(7): 12-15, which reported the use of full chloride system electrocast iron and iron-nickel alloy foil. The disadvantage of this system is its corrosion resistance. Strong, high temperature, poor operating environment, the foil width is only 200mm; and the report of electrodep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/04
Inventor 龚竹青王奇邓姝皓杨喜云
Owner CENT SOUTH UNIV
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