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A preparation method for a vapor plating mask plate

A mask and vapor deposition technology, which is applied in the field of the preparation of vapor deposition masks, can solve the problems that the opening precision cannot meet the requirements, the zigzag shape, and the product opening quality is not good, and the opening quality is good, the burden is reduced, and the three wastes are reduced. The effect of governance burden

Inactive Publication Date: 2013-07-17
KUN SHAN POWER STENCIL
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  • Description
  • Claims
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Problems solved by technology

[0006] In addition, in today's technical field, most masks for evaporation are made of etched Invar alloy, but the quality of the product openings made by the etching process is not good, such as burrs and jagged
Opening accuracy can not meet the requirements

Method used

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  • A preparation method for a vapor plating mask plate

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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 method for preparing an evaporation mask, the mask is a mask made of a nickel-iron alloy material produced by an electroforming process; the nickel-iron alloy material is composed of two elements, nickel and iron, and the content of the iron element is The content of nickel element is 56% to 62%, and the content of nickel element is 38% to 44%.

[0024] During processing, the thickness of the mask plate is in the range of 30-100 μm; in addition, the metal mask plate has an opening pattern area. The nicke...

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Abstract

The invention discloses a preparation method for a vapor plating mask plate. The mask plate is produced from a nickel-iron alloy material by using an electroforming process. The nickel-iron alloy material comprises two elements of nickel and iron, with an iron content being 56%-62%. In a preparation method for the nickel-iron alloy material, an electroforming method is adopted, a sulfate system is used as an electroforming solution, a metal cathode and a metal anode are placed in the electroforming solution, and the nickel-iron alloy is deposited on the cathode; wherein the electroforming solution concretely comprises: 220-260g / L nickel sulfate, 30-50g / L nickel chloride, 40-50g / L boric acid, and 21-25g / L ferrous sulfate. According to the preparation method of the invention, the electroforming process is employed to replace an etching process, openings of obtained products are smooth, have good quality, no blurs, and high accuracy; by employing the process, the use amount of nickel is reduced, the cost is low, the three-waste management burden is alleviated, and an alloy coating with the iron content in the range of 56%-62% can be obtained, which means large flat surface metal mask coatings with different magnetisms can be obtained.

Description

technical field [0001] The invention belongs to the technical field of electroforming, and relates to a method for preparing a mask, in particular to a method for preparing an evaporation mask. [0002] Background technique [0003] In today's high-precision manufacturing field, with the development of technology, the demand for large flat metal masks with high magnetic properties is also increasing, such as metal masks for evaporation. At the same time, the price of metal nickel has continued to rise in recent years, and the cost of pure nickel metal masks has also increased. [0004] 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 evaporation masks with high precision requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D1/10C25D3/56C23C14/04C23C14/24
Inventor 魏志凌高小平
Owner KUN SHAN POWER STENCIL
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