Special water-based anti-rust paint for submerged arc welding and preparation process thereof

Abstract

The invention discloses special water-based anti-rust paint for submerged arc welding. The water-based anti-rust paint comprises the following components in parts by weight: 400-500 parts of a film-forming material, 80-100 parts of deionized water, 300-400 parts of a pigment filler and an anti-rust filler, 20-30 parts of a levelling agent, 5-10 parts of a dispersing and wetting agent, 1-3 parts of a defoaming agent, 1-3 parts of a bactericide, 3-4 parts of a multifunctional auxiliary agent, 25-35 parts of a film-forming auxiliary agent, 4-6 parts of an anti-settling agent, 12-16 parts of a professional submerged arc welding flash rust preventer, 8-10 parts of a metal environment-friendly flash rust preventer, 2-3 parts of a substrate wetting agent and 4-8 parts of a thickening agent solution, wherein the film-forming material is an environment-friendly water-dispersible acrylic modified emulsion. The water-based anti-rust paint has the advantages of water-based environmental friendliness and good water resistance, salt fog resistance and weather resistance, has strong rust resistance, has good thermal stability, and is mainly applicable to rust prevention at a metal submerged arc welding position.

Description

technical field [0001] The invention belongs to the technical field of water-based industrial paint manufacturing, and in particular relates to a water-based antirust paint specially used for submerged arc welding, which uses an environment-friendly water-dispersed acrylic modified emulsion as a main film-forming substance and a preparation process thereof. Background technique [0002] The antirust paint currently used is roughly two types: oily and water-based. Oil-based anti-rust paint makes it difficult to remove the greasy surface of the material, so it is rarely used. Oil-based anti-rust paint is easy to use and low in price, but because it contains toxic substances such as nitrite, chromate, and heavy metals, it seriously damages the atmospheric environment and affects the operation. People and the air are more harmful, and the country has restricted its use. Ordinary water-based metal anti-rust paint is made of acrylic resin as the main component, which is made afte...

AI Technical Summary

Problems solved by technology

Oil-based anti-rust paint makes it difficult to remove the greasy surface of the material, so it is rarely used. Oil-based anti-rust paint is easy to use and low in price, but because it contains toxic substances such as nitrite, chromate, and heavy metals, it seriously damages the atmospheric environment and affects the operation. People and air are more harmful, and the country has restricted its use

Ordinary water-based metal anti-rust paint is made of acrylic resin as the main component, which is made after emulsification, or acrylic resin made with ether as the dispersion medium as the film-forming substance, which is not a water-based paint in the true sense.

[0003] And the anti-flash rust agent used in ordinary water-based anti-rust paint is 179 anti-flash rust agent, H10 anti-flash rust agent, X150 anti-flash rust agent, etc., which are used as anti-rust additives to prevent rust on ordinary metal surfaces , but for submerged arc welding special metals still have flash rust phenomenon

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