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A metal surface treatment of electrical insulation equipment to prevent c 5 f 10 o Gas corrosion method

A metal surface treatment and electrical insulation technology, applied in metal material coating process, solid diffusion coating, coating and other directions, can solve the problems of damage to electrical equipment components, poor contact of metal contacts, accelerated corrosion of copper conductors, etc. The effect of preventing corrosion, avoiding normal working operation, and ensuring the level of electrical insulation

Active Publication Date: 2021-10-01
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, related studies have shown that C 5 f 10 O and copper, the current-carrying conductor material commonly used in electrical switchgear, will react with each other at 80 ° C, causing corrosion of copper, prone to poor contact of metal contacts, etc., which will lead to local overheating, accelerate corrosion of copper conductors, and damage electrical appliances. equipment parts

Method used

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  • A metal surface treatment of electrical insulation equipment to prevent c <sub>5</sub> f <sub>10</sub> o Gas corrosion method
  • A metal surface treatment of electrical insulation equipment to prevent c <sub>5</sub> f <sub>10</sub> o Gas corrosion method
  • A metal surface treatment of electrical insulation equipment to prevent c <sub>5</sub> f <sub>10</sub> o Gas corrosion method

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Embodiment 1

[0033] Surface treatment of a metal part (made of red copper) of electrical insulation equipment to prevent C 5 f 10 O gas corrosion method, the specific steps are as follows:

[0034] 1) Clean the copper parts: Soak the copper parts in a degreasing agent at 85°C. The components and mass percentage ratio of the degreasing agent used are: 5wt% NaOH, 3wt% NaOH 2 CO 3 , with a margin of H 2 0, the soaking time is 5min, then take out and wipe the surface of the metal part to remove the oil stain on the part surface, then rinse the degreased metal part with 90 ℃ hot water for 5 minutes to remove the oil stain on the part surface;

[0035] 2) Activation treatment: soak the copper parts in 95°C activator for 3 minutes, the composition and mass percentage of activator are: 5wt%Na 2 B 4 o 7 , 1 wt% NH 4 Cl, the balance is water;

[0036] 4) Aluminum plating on the surface of metal parts by hot-dip aluminum plating: immerse the metal parts after activation treatment in immersion...

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Abstract

The invention relates to a metal surface treatment of electrical insulation equipment to prevent C 5 f 10 O gas corrosion method, the steps are as follows: 1) Contact C to electrical insulation equipment 5 f 10 Clean the surface of the component with O gas to remove the oil on the surface of the component; 2) Activate the component to activate the metal surface of the component; 3) Plating aluminum on the surface of the component; 4) Oxidize the surface of the component to form a dense layer on the surface of the component aluminum oxide film. This method can effectively prevent gas insulation medium C 5 f 10 O corrodes the metal material inside the electrical insulation equipment at a higher temperature, prolongs the service life of the electrical insulation equipment, and at the same time, prevents C 5 f 10 O reacts and decomposes with metal materials to ensure the electrical insulation level of the insulating gas, avoid affecting the normal operation of electrical equipment, and prevent the production of toxic gases. The operation process is simple and has good engineering application value.

Description

technical field [0001] The invention belongs to the technical field of gas insulated switchgear, and in particular relates to a metal surface treatment of electrical insulation equipment to prevent C 5 f 10 O gas corrosion method. Background technique [0002] In medium-voltage or high-voltage electrical equipment, electrical insulation and possible arc extinguishing are usually achieved by the gas enclosed in the shell of the equipment. In the past, sulfur hexafluoride (SF 6 ) has relatively high dielectric strength, good thermal conductivity and low dielectric loss, but it has a strong greenhouse effect. For the sake of protecting the environment, it is necessary to find a new type of insulating gas to replace SF 6 . Among them, perfluoro-n-propyl vinyl ether (C 5 f 10 O) due to the good insulation performance began to receive attention, C 5 f 10 The chemical properties of O are stable, the greenhouse effect potential index (GWP) is about 1, the atmospheric life is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/12C23C2/02C23C2/26C23C8/12
CPCC23C2/02C23C2/12C23C2/26C23C8/12
Inventor 肖淞张晓星唐炬卫卓李亚龙
Owner WUHAN UNIV
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