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A kind of magnesium-silver alloy cleaning agent and cleaning method

A magnesium-silver alloy and cleaning agent technology, which is applied in metal material coating process, vacuum evaporation plating, coating, etc., can solve the problems of high price, easy damage to metal substrates, low efficiency, etc., and achieve the effect of low cost

Active Publication Date: 2021-07-09
SHENZHEN CAPCHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the cleaning agents commonly used to clean the above-mentioned metal materials are prone to residue, low efficiency, or easy to damage the metal substrate, and the price is high

Method used

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  • A kind of magnesium-silver alloy cleaning agent and cleaning method
  • A kind of magnesium-silver alloy cleaning agent and cleaning method
  • A kind of magnesium-silver alloy cleaning agent and cleaning method

Examples

Experimental program
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Effect test

Embodiment 1-6、 comparative example 1-6

[0023] The examples and comparative examples are used to illustrate the molybdenum-aluminum common etching solution and etching method disclosed in the present invention.

[0024] With the magnesium-silver alloy deposited on the Mask as sample (2.8mg), adopt the magnesium-silver alloy cleaning agent (15g) shown in embodiment 1-6 and comparative example 1-6 under the temperature of 20~25 ℃ to magnesium-silver Alloy samples were cleaned, and the cleaning effect was recorded (cleaning time and whether there were black and brown metal oxide residues on the surface). The test evaluation results are shown in Table 1.

[0025] Table 1

[0026]

[0027]

Embodiment 7-14、 comparative example 7-14

[0029] The Invar alloy commonly used by Mask and the ferrochromium alloy substrate (1g) are soaked in the magnesium-silver alloy cleaning agent (15g) shown in embodiment 1-6 respectively 48h, then take out, test the corrosion situation of metal substrate by ICP ( Corroded mass percentage before and after immersion). The test evaluation results are shown in Table 2.

[0030] Table 2

[0031]

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Abstract

The object of the present invention is a cleaning agent with low cost, high efficiency and thorough dissolution and cleaning of magnesium-silver alloy without causing damage to the metal base. The magnesium-silver alloy cleaning agent comprises 3-10wt% of main oxidant, 5-15wt% of auxiliary oxidant, 1-10wt% of pH buffer, 0.3-1.0wt% of preservative and the rest of water; the main oxidant One or more selected from nitric acid, hydrogen peroxide, perchloric acid; the auxiliary oxidant selected from one or more of phosphoric acid, sulfuric acid; the preservative selected from sucrose, sorbitol, dextrin , one or more of bipyridine. At the same time, the invention also provides a cleaning method using the cleaning agent. The magnesium-silver alloy cleaning agent provided by the invention has low cost, can efficiently and thoroughly dissolve and clean the magnesium-silver alloy without causing damage to the metal base.

Description

technical field [0001] The invention relates to a magnesium-silver alloy cleaning agent, in particular to a magnesium-silver alloy cleaning agent used for cathode materials deposited on an organic light-emitting diode (OLED) evaporation Fine Metal Shadow Mask, and using the cleaning agent to clean metal substrates Cleaning method. Background technique [0002] An expensive high-precision metal mask (FineMetal Shadow Mask) is required in the evaporation process of the cathode material of the OLED panel, and after the evaporation is completed, there are usually metal materials (mainly commonly used cathode materials, such as magnesium-silver alloy) Deposited on the Mask, in order to improve its service life, the deposited metal material needs to be cleaned. [0003] At present, the cleaning agents commonly used for cleaning the above-mentioned metal materials tend to produce residues, have low efficiency, or easily damage the metal substrate, and are expensive. With the surg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/12C23C14/02
Inventor 康威鄢艳华周兴邦
Owner SHENZHEN CAPCHEM TECH CO LTD