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Etching solution for preparing filter glass and preparation method of filter glass

A technology of filter glass and etching solution, which is applied in the direction of optical filters, etc., can solve the problems that resin-coated optical filters cannot meet the requirements of detection equipment, etc., and achieve enhanced scratch resistance performance, excellent effect, simple and practical process Effect

Active Publication Date: 2020-07-10
ZHENGZHOU HIHO OPTICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an etchant for preparing filter glass, which can be used to prepare filter glass that meets the requirements of medical equipment, and further solves the problem that the resin-coated filter in the prior art cannot meet the requirements of testing equipment The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Prepare the special etching solution for filter glass (wt%) according to the following formula: NNH 4 HF 2 5.8%, NH 4 F 4.2%, H 2 SO 4 12.6%, HF 26.3%, H 3 PO 4 3.7%, CuSO 4 4.5%, Na 2 B 4 O 7· 10H 2 O 0.5%, sucrose 23%, H 2 O19.4%; will H 2 SO 4 Slowly add to the water to prevent splashing. After the solution is evenly stirred and cooled, add other materials in sequence, and then fully stir evenly. After all the materials are fully dissolved and the solution is transparent, the original glass sheet can be etched.

[0026] 2. Pretreat the original glass sheet in a pretreatment solution (a mixture of dilute sulfuric acid and hydrofluoric acid), then clean it and dry it.

[0027] 3. Quickly immerse the cleaned, dried, and cooled glass original sheet into the special etching solution for filter glass (the temperature of the etching solution is controlled at 12-15°C), swing for 3-5 seconds, and then stand for 3 minutes. Let the etching solution and the original glass fully...

Embodiment 2

[0030] 1. Prepare the special etching solution for filter glass (wt%) according to the following formula: NNH 4 HF 2 6.8%, NH 4 F 4.0%, H 2 SO 4 14.5%, HF 27.5%, H 3 PO 4 4.6%, CuSO 4 4.8%, Na 2 B 4 O 7· 10H 2 O 0.5%, sucrose 25%, H 2 O12.3%; will H 2 SO 4 Slowly add to the water to prevent splashing. After the solution is evenly stirred and cooled, add other materials in sequence, and then fully stir evenly. After all the materials are fully dissolved and the solution is transparent, the original glass sheet can be etched.

[0031] 2. Pretreat the original glass sheet in a pretreatment solution, then clean it and dry it.

[0032] 3. Quickly immerse the cleaned, dried, and cooled glass original sheet into the special etching solution for filter glass (the etching solution temperature is controlled at 12-15°C), swing for 3-5 seconds, and then stand for 4 minutes. Let the etching solution and the original glass fully react.

[0033] 4. After taking out the etched glass, immediately...

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Abstract

The invention belongs to the technical field of glass chemical etching, and particularly relates to an etching solution for preparing filter glass and a preparation method of the filter glass. The etching solution for preparing the filter glass is prepared from the following raw materials in percentage by mass: 5 to 10% of ammonium bifluoride, 4 to 6% of ammonium fluoride, 12 to 18% of sulfuric acid, 15 to 28% of hydrofluoric acid, 3 to 8% of phosphoric acid, 4 to 8% of copper sulfate, 0.5 to 0.8% of borax, 10 to 25% of cane sugar and 5 to 20% of water. The etching solution is used for treating glass, so that the filter glass meeting the use requirements of medical instruments can be prepared.

Description

Technical field [0001] The invention belongs to the technical field of glass chemical etching, and specifically relates to an etching solution for preparing filter glass and a preparation method of filter glass. Background technique [0002] At present, the filters used in domestic medical equipment are generally resin-coated filters. Such resin-coated filters have poor mechanical strength, poor scratch resistance, easy aging, attenuation, dust absorption, and use. The short life span and other shortcomings greatly affect the stability and consistency of the light source transmission, and bring the serious consequences of inaccurate detection data to the detection equipment, causing the detection equipment to be at the rough inspection level, which is not conducive to improving the accuracy of the detection data. Restricted the clinical effect of medical devices. Summary of the invention [0003] The present invention provides an etching solution for preparing filter glass. The e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C15/00G02B5/20
CPCC03C15/00G02B5/20
Inventor 熊国祥
Owner ZHENGZHOU HIHO OPTICAL TECH CO LTD
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