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An iron-nickel alloy material with a high iron content and a preparation method thereof

A technology of nickel-iron alloy and iron content, applied in the electrolysis process, electroforming, etc., can solve the problems of low oxidation resistance, high hardness of the electrodeposited layer, high production cost, etc., achieve good brightness and fullness, reduce costs, and save energy Effect

Inactive Publication Date: 2013-07-17
KUN SHAN POWER STENCIL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the disclosed electrodeposition process of electroforming nickel-iron alloy still has many deficiencies, such as high metal ion concentration, high production cost, unstable electrolyte performance, low oxidation resistance, high hardness of the electrodeposited layer, poor toughness

Method used

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  • An iron-nickel alloy material with a high iron content and a preparation method thereof

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0023] The invention discloses a nickel-iron alloy material with high iron content, which includes nickel Ni element and iron Fe element; the mass percentage of each element is: Ni: 38%-44%, Fe: 56%-62%.

[0024] In a preferred embodiment of the present invention, the thickness of the nickel-iron alloy material is in the range of 30-70 μm; the uniformity COV of the surface of the nickel-iron alloy material is less than 5%; the surface brightness of the nickel-iron alloy coating is first-grade brightness.

[0025]

[0026] The invention ...

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Abstract

The present invention discloses an iron-nickel alloy material with a high iron content and a preparation method thereof. The nickel-iron alloy material comprises two elements of an element nickel (Ni) and an element iron (Fe); and the mass percentage of each element is as follows: Ni: 38%-44% and Fe: 56%-62%. According to the preparation method of the invention, electroforming parameters are well controlled to allow the iron content in the resulting iron-nickel alloy material to range from 56% to 62%; the nickel-iron alloy material has a thermal expansion coefficient of 1.5*10<-6> DEG C-1.8*10<-6> DEG C, high magnetic performance, a tensile strength of 480-500Mpa, a Vickers hardness of 120 to 160, a first grade board brightness, and a board uniformity less than 5%; and the production cost is low.

Description

technical field [0001] The invention belongs to the technical field of element preparation, and relates to a nickel-iron alloy material with high iron content; meanwhile, the invention also relates to a preparation method of the above-mentioned nickel-iron alloy material. Background technique [0002] In the field of high-precision manufacturing, the demand for large flat metal masks with high magnetic properties is increasing, including Invar alloys. With the development of high-tech products such as OLEDs and touch screens, Invar alloys (a nickel ferroalloy) is the preferred choice. [0003] Most metals and alloys expand in volume when heated and contract in volume when cooled, but due to its ferromagnetism, Invar alloy has abnormal thermal expansion of Invar effect in a certain temperature range, and its expansion coefficient is extremely low , and sometimes even zero or negative values. Therefore, Invar alloy is the best choice for the evaporation mask with high precis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/08C25D1/00
Inventor 魏志凌高小平郑庆靓孙倩
Owner KUN SHAN POWER STENCIL