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Protection method for rust removal, paint removal and anticorrosion of metal surface

A metal surface and metal technology, applied in the field of surface protection, can solve the problems of inability to reduce the process flow of steps, occupy the construction period and time, and unable to further improve the work efficiency, etc., and achieve the effect of large mechanical bite force, reduced construction period and good rust prevention effect.

Inactive Publication Date: 2011-10-19
SHANGHAI FAHE BRIDGE & TUNNEL MAINTENANCE ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the painting of metal in the traditional process is usually a step of "primer-intermediate paint-finish paint", which cannot reduce the steps to improve the entire process.
That is to say, the construction period of this part is fixed, and it is precisely these three steps that occupy most of the construction period, which cannot further improve work efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A protection method for rust removal, paint removal and anticorrosion of a metal surface, the protection method comprising the following steps:

[0025] (1) Non-destructive treatment of metal surfaces: clean up the work site, and if it is necessary to set up scaffolding for construction, scaffolding and related safety protection facilities must be set up.

[0026] Install the multi-function curing machine near the water pump, confirm that the working section is within the operable range, connect the water pump to the generator power supply, connect the water outlet to the water inlet of the multi-function curing machine, and ask one person to check the water supply at all times to ensure that the pump does not Empty suction. The mechanic connects the high-pressure pipeline to the gun handle and gun head of the multi-function curing machine. After the completion, the pressure of the multi-function curing machine is turned on and debugged to 300bar. Prepare dry yellow sa...

Embodiment 2

[0036] A protection method for rust removal, paint removal and anticorrosion of a metal surface, the protection method comprising the following steps:

[0037] (1) Non-destructive treatment of metal surfaces: connect the water pump connected to the generator to the water inlet of the multi-function curing machine, and then use the high-pressure pipeline to connect the multi-function curing machine and the spray gun, and control the pressure of the multi-function curing machine to 2000bar, 2000bar super The high-pressure water jet can have enough pressure to remove all the paint and rust on the metal surface without adding sand, and can clean up the rust, loose, honeycomb and other deteriorated parts and paint on the metal surface, revealing the luster of the metal itself, that is, to refurbish the metal surface. This kind of pure water treatment process has no concussion damage to the original metal structure, environmental protection and energy saving, no dust pollution, can ...

Embodiment 3

[0041] A protection method for rust removal, paint removal and anticorrosion of a metal surface, the protection method comprising the following steps:

[0042] (1) Non-destructive treatment of metal surfaces: install the multi-function curing machine near the water pump, and confirm that the working section is within the operable range. Connect the water pump to the generator power supply, connect the water outlet to the water inlet of the multi-function maintenance machine, put the water pump into the water source, and ask one person to check the water supply at all times to ensure that the water pump is not empty. Connect the water pump connected to the generator to the water inlet of the multi-function curing machine, and then use the high-pressure pipeline to connect the multi-function curing machine and the spray gun, control the pressure of the multi-function curing machine to 500bar, and turn on the water pump and the sand extraction pipe of the multi-function curing mac...

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Abstract

The invention relates to a protection method for rust removal, paint removal and anticorrosion of a metal surface. The method comprises three steps of (1) metal surface lossless rust removal technology, (2) conversion of rust iron on a metal surface and antirust processing, (3) painting of anticorrosion paint on the metal surface. Compared with prior art, the protection processing on the metal surface of the invention employs a high-pressure water-sand blending technology to remove rust, so that rust removal efficiency is higher and the method is safe and environment-friendly. Free rust on the metal surface can be conversed into antirust priming paint when a rust removal transforming agent is being painted, so as to complete metal rust removal and rust prevention by one step, and solve problems, that harm antirust quality, such as local corrosion and free rust at one time. The rust transforming agent employed in the technology belongs to an aqueous system, is without harmful solvents of benzene, ketone, etc., or heavy metal compositions and is nontoxic and environmental-friendly, so that base materials with rust can be used in construction to save costs and raise efficiency. Anticorrosion coating on the metal surface employs a high-pressure air-free coating spraying, so that construction quality is more reliable and the efficiency is higher.

Description

technical field [0001] The invention relates to a method for surface protection, in particular to a method for protecting metal surfaces from rust, paint, and corrosion. Background technique [0002] The rust and paint removal of the base surface is the most fundamental and important step in all metal surface anticorrosion processes, and it is the first step to determine the effective coating and anticorrosion of the metal surface. For the treatment of the original metal surface, because there is no more advanced equipment, usually pneumatic tools, electric tools or dry sandblasting are used to gradually polish the paint and rust on the metal surface. Due to the slow grinding speed and uneven grinding of the grinding head of manual tools, or the dry sandblasting process currently used, the dust generated by it seriously hinders other processes from being carried out at the same time, resulting in harsh construction environments and unsafe conditions for workers' health, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C9/10B05D7/16B05D3/00B05D1/02B24C1/06
Inventor 丁新勇
Owner SHANGHAI FAHE BRIDGE & TUNNEL MAINTENANCE ENG TECH
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