Sapphire infrared window cleaning agent and preparation method

A technology of infrared window and cleaning agent, applied in the field of cleaning agent, can solve the problems of polishing surface damage, troublesome use, corrosion of sapphire window polishing surface, etc.

Inactive Publication Date: 2010-11-03
CHONGQING CHUANYI AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cleaning with this cleaning agent will easily leave watermarks or polishing residue on the surface of the sapphire window, which needs to be wiped in a single piece. The cleaning effect is not good and the efficiency is low, so it cannot be used in mass production; Soak in a closed solvent for a certain period of time or heat until white smoke escapes, stop heating, rinse with water several times after cooling, then clean with alcohol, blow dry or dry
In this method, since hydrofluoric acid is a strong acid, it

Method used

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  • Sapphire infrared window cleaning agent and preparation method

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Embodiment Construction

[0022] The components of the sapphire infrared window cleaning agent are configured as described in Table 2:

[0023] Table 2

[0024] serial number

Concentrated sulfuric acid (g)

Potassium dichromate (g)

water (g)

1

1472

320

4000

2

1656

360

450

3

1840

400

5000

[0025] The specific production steps of sapphire infrared window cleaning agent are as follows:

[0026] (1) Weighing: Put a layer of clean newspaper on the electronic balance, take out the potassium dichromate with a medicine spoon and place it on the newspaper, and accurately weigh the weight of the potassium dichromate as described in Table 2. Wear protective gloves during the whole process, and do not touch potassium dichromate with your hands.

[0027] (2) Potassium dichromate solution is prepared: in a 5000ml beaker, accurately measure deionized water as described in Table 2, pour the weighed potassium dichromate i...

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Abstract

The invention relates to a sapphire infrared window cleaning agent and a preparation method. The sapphire infrared window cleaning agent is characterized by comprising 1472-1840 parts by weight of concentrated sulfuric acid, 300-500 parts by weight of potassium dichromate and 4000-5500 parts by weight of water. When used to clean a sapphire window, the cleaning agent is non-corrosive on human body at normal temperature because the cleaning agent is not volatile easily, thus the cleaning agent has safe and convenient use without corroding and damaging polishing surfaces in the cleaning process and can ensure that the surface quality and the surface finish quality of the sapphire infrared window are not damaged.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to a cleaning agent for removing surface adhesives and attachments after a sapphire infrared window is chemically mechanically polished and a preparation method thereof. Background technique [0002] Artificial sapphire has good performance in the spectral range from visible light to 5.6μ, and the transmittance in the 3-5μ band is higher than 85%. Therefore, it is an excellent infrared material and is widely used in the production of infrared windows for infrared detectors. , to ensure the maximum transmission and collection of infrared light by the infrared detector, so as to achieve the best photoelectric conversion effect. Usually, the sapphire infrared window needs to be polished by chemical mechanical technology, and when it is polished, the smoothness of the window reaches below 0.3 nanometers, and the surface is very easy to absorb dust and static electricity, and adhesive glue is also use...

Claims

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Application Information

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IPC IPC(8): C11D7/08
Inventor 邓远东
Owner CHONGQING CHUANYI AUTOMATION
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