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Anti-corrosion treatment process for surface of tunnel component

An anti-corrosion treatment and component technology, applied in the field of tunnel components, can solve problems such as poor effect, achieve the effects of preventing rust, not easy to oxidize, and enhancing air tightness and water resistance

Inactive Publication Date: 2018-07-20
三丈信息(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a surface anti-corrosion treatment process for tunnel components, which has the advantages of good anti-corrosion effect, strong water-proof performance, and high air tightness, and solves the problem of poor anti-corrosion treatment effect on the surface of existing tunnel components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a surface anti-corrosion treatment process for tunnel components, including the following steps:

[0021] S1: Grind the protruding parts on the surface of the component until the surface is smooth, fill the concave parts on the surface of the component until the surface is smooth, and use a mechanical steel brush to polish and roughen the surface of the component;

[0022] S2: Clean the component treated in S1 with a cleaning agent. After cleaning, put the component into an oven for drying at a drying temperature of 20°C and a drying time of 2 hours until the surface of the component is completely dry;

[0023] S3: Make the component surface after S2 treatment go through the following processes: degreasing → water washing → etching → water washing → cyanide copper flash plating or nickel flash plating → water washing → acid copper → water washing → bright nickel → water washing → chrome plating → water washing, and then put Put it into an oven f...

Embodiment 2

[0028] This embodiment provides a surface anti-corrosion treatment process for tunnel components, including the following steps:

[0029] S1: Grind the protruding parts on the surface of the component until the surface is smooth, fill the concave parts on the surface of the component until the surface is smooth, and use a mechanical steel brush to polish and roughen the surface of the component;

[0030] S2: Clean the component treated in S1 with a cleaning agent. After cleaning, put the component into an oven for drying at a drying temperature of 25°C and a drying time of 5 hours until the surface of the component is completely dry;

[0031] S3: Make the component surface after S2 treatment go through the following processes: degreasing → water washing → etching → water washing → cyanide copper flash plating or nickel flash plating → water washing → acid copper → water washing → bright nickel → water washing → chrome plating → water washing, and then put Put it into an oven f...

Embodiment 3

[0036] This embodiment provides a surface anti-corrosion treatment process for tunnel components, including the following steps:

[0037] S1: Grind the protruding parts on the surface of the component until the surface is smooth, fill the concave parts on the surface of the component until the surface is smooth, and use a mechanical steel brush to polish and roughen the surface of the component;

[0038] S2: Clean the component treated in S1 with a cleaning agent. After cleaning, put the component into an oven for drying at a drying temperature of 23°C and a drying time of 4 hours until the surface of the component is completely dry;

[0039] S3: Make the component surface after S2 treatment go through the following processes: degreasing → water washing → etching → water washing → cyanide copper flash plating or nickel flash plating → water washing → acid copper → water washing → bright nickel → water washing → chrome plating → water washing, and then put Put it into an oven for...

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Abstract

The invention discloses an anti-corrosion treatment process for a surface of a tunnel component. The anti-corrosion treatment process comprises the following steps that S1, convex parts on the surfaceof the component is ground until the surface is flat, concave parts of the surface of the component is filled up until the surface is smooth, and a mechanical steel brush is used for grinding and drawing the surface of the component; S2, the component treated in the S1 is cleaned by using a cleaning agent, the components are put into a drying oven to be dried after being cleaned, the drying temperature is 20-25 DEG C, the drying time is 2-5 h, until the surface of the component is completely dried; S3, the surface of the component treated by s2 is subjected to the following procedures of oilremoval, water washing, etching, water washing, cyanide copper flash plating or nickel flash plating, water washing, copper acid pickling, water washing, bright nickel plating, water washing, chromiumplating and water washing. The anti-corrosion treatment process has the advantages of being good in corrosion prevention effect, high in water isolation performance and high in air tightness, and theproblem that an existing tunnel component is poor in anti-corrosion treatment effect on the surface of the tunnel component.

Description

technical field [0001] The invention relates to the technical field of tunnel components, in particular to a surface anticorrosion treatment process for tunnel components. Background technique [0002] Shield tunnels are currently widely used in urban subways, railways, highways and municipal underwater tunnels in my country. However, some components of the tunnel, such as concrete segments, steel pipe segments, deep-buried piles, etc., are corroded by underground soil and groundwater, especially in coastal coastal areas, and most of the existing tunnel components have poor corrosion resistance and are vulnerable to damage. [0003] After searching, the Chinese patent authorization number discloses a CN 105710011 A discloses a surface anticorrosion treatment process for tunnel components. The invention comprises the following steps: 1) component surface pretreatment: 2) spraying the bottom layer: spray a layer of primer with a thickness of 0.2-0.4mm on the surface of the tu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/14C25D5/36C23F11/18C23G1/26
CPCC25D5/14C23F11/18C23F11/184C23F11/185C23F11/187C23F11/188C23G1/26C25D5/36
Inventor 周耀华
Owner 三丈信息(深圳)有限公司
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