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Method for preparing high-voltage electrode by plating interior of slender glass tube with metallic silver

A high-voltage electrode and glass tube technology, which is applied in metal material coating process, liquid chemical plating, coating, etc., can solve difficult problems and achieve the effects of weight reduction, efficiency improvement, and excellent electrical conductivity

Pending Publication Date: 2021-01-01
FUJIAN NEWLAND ENTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the silver plating on the inner wall of the slender glass tube, due to the particularity of its structure, it is required that the silver plating be dense and uniform, and the thickness should be more than 1 μm, which is very difficult, and there is no relevant report so far.

Method used

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  • Method for preparing high-voltage electrode by plating interior of slender glass tube with metallic silver

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Experimental program
Comparison scheme
Effect test

Embodiment

[0026] 1. Cleaning

[0027] Before the slender glass tube is silver-plated, it is cleaned to ensure that the inner wall of the glass tube is clean. Soak the glass tube in 1N hydrochloric acid solution for 1 hour, take it out and rinse it repeatedly with tap water until there is no residual hydrochloric acid on the tube wall, then dry the glass tube and store it in a clean box for later use.

[0028] 2. Sensitization

[0029] 1. Weigh 30g of SnCl 2 2H 2 O, the NaCl of 200g, the urea of ​​50g, put in the beaker of 3L, and add the distilled water of 1000ml in the beaker, stir slowly with glass rod, make each material dissolve, add the HCl solution that 30ml volume concentration is 37% carefully again, Stir and mix evenly to obtain a sensitization solution. Pack the prepared sensitizing solution in a storage tank, seal it tightly, and store it in a cool and dry place.

[0030] 2. Close one end of the cleaned glass tube and stand it vertically so that the closed end is downwar...

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Abstract

The invention discloses a method for preparing a high-voltage electrode by plating the interior of a slender glass tube with metallic silver. The method is characterized in that by adopting a sensitizing solution prepared by adding urea and NaCl and a silver plating reagent prepared by using triethanolamine as a stabilizer and polyethylene glycol as an assistant, cleaning, sensitizing and silver plating are performed on the interior of the slender glass tube to obtain a silver plating layer with the thickness of 0.5-2 [mu]m, and then by using the obtained glass tube with the silver plating layer as the high-voltage electrode, a discharge tube with uniform discharge intensity and uniform gas flow is prepared. Thus, the ozone generation efficiency of an ozone generator is improved, and meanwhile, the reliability of the discharge electrode is improved.

Description

technical field [0001] The invention specifically relates to a method for preparing a high-voltage electrode by plating metal silver in a slender glass tube. Background technique [0002] The commonly used discharge method for ozone generators is tubular discharge, with the high-voltage electrode on the inside and the ground electrode on the outside, separated by a layer of dielectric material, thereby forming a dielectric barrier discharge. The dielectric materials used are often glass, ceramics, enamel, etc. Among them, glass has gradually become the main dielectric material due to its easy processing, high reliability, and convenient installation. [0003] The discharge tube of the ozone generator has gradually developed from a thicker discharge tube in the early stage to a thinner discharge tube, which has the advantage of improving the efficiency of the discharge tube to generate ozone and miniaturizing the ozone generator. The current type of discharge tube is mainly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/44C23C18/18
CPCC23C18/44C23C18/1879
Inventor 韩闽毅姚向阳张元晖吴志军杨标标
Owner FUJIAN NEWLAND ENTECH CO LTD
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