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Non-chrome alkali-resistant and solvent-resistant galvanized steel sheet surface treatment liquid and preparation method thereof

A technology of surface treatment liquid and solvent resistance, applied in hot-dip plating process, coating, metal material coating process, etc., can solve the problem of high cost of surface treatment agent, achieve enhanced adhesion, improve corrosion resistance, Improve the effect of alkali resistance

Inactive Publication Date: 2010-08-04
MAANSHAN WEIDELI LUBRICATION MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the raw materials contain expensive metal elements such as vanadium, titanium, and zirconium, the cost of using the surface treatment agent is relatively high

Method used

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  • Non-chrome alkali-resistant and solvent-resistant galvanized steel sheet surface treatment liquid and preparation method thereof
  • Non-chrome alkali-resistant and solvent-resistant galvanized steel sheet surface treatment liquid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] Embodiment: Embodiment 1~9 of the present invention, comparative example 1~6 implementation situation is as follows:

[0046] The following examples use electro-galvanized, hot-dip galvanized and hot-dip galvanized aluminum alloy steel sheets, but the scope of the present invention is not limited by these specific examples. The galvanized steel sheets used in Examples and Comparative Examples, their surface cleaning methods, surface treatment liquids, and performance tests will be described below.

[0047] 1. Test sample

[0048] Products sold in the market, plate thickness 0.6mm, double-sided electro-galvanized steel plate (EG), galvanized adhesion amount 20g / m 2 ;

[0049] Products sold in the market, plate thickness 0.6mm, hot-dip galvanized steel plate (GI), galvanized adhesion amount 40g / m 2 ;

[0050] Products sold in the market, plate thickness 0.6mm, hot-dip galvanized aluminum alloy steel plate (GF), galvanized adhesion amount 40g / m 2 .

[0051] 2. Cleani...

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Abstract

The invention discloses a non-chrome alkali-resistant and solvent-resistant galvanized steel sheet surface treatment liquid and a preparation method thereof. The water solution of the galvanized steel sheet surface treatment liquid comprises the following components: glass etching waste liquid and / or silane combustion tower filer washing waste liquid treated by decontaminating and purifying, phosphorous compound, one or more organosilane coupling agent(s) containing at least one amino functional group with active hydrogen, one or more organosilane coupling agent(s) containing at least one epoxy group functional group, at least one cation-type or ionic type water soluble polyurethane resin or water-dispersion polyurethane resin, and at least one accelerating agent which is oxygen acid or oxysalt. The galvanized steel sheet surface treatment liquid has good corrosion resistance, fingerprint resistance and coating adhesiveness, and not only meets the requirements of high quality and environmental protection of home appliances users on and the like, but also solves the problem of recycling of the glass etching waste liquid and the silane combustion tower filer washing waste liquid.

Description

technical field [0001] The invention relates to a surface treatment agent for galvanized steel sheets and a preparation method thereof, in particular to a chromium-free, alkali-resistant and solvent-resistant surface treatment liquid for galvanized steel sheets and a preparation method thereof. A protective film is formed on the surface of the galvanized steel sheet, which can not only endow the surface of the galvanized steel sheet with excellent alkali resistance and solvent resistance, but also form excellent properties such as good corrosion resistance, fingerprint resistance, and coating adhesion . Background technique [0002] Galvanized steel sheets are widely used in various fields such as automobiles, building materials, home appliances, and toys. However, the surface of galvanized steel sheet is easily corroded in the atmospheric environment, forming white rust. In order to improve the corrosion resistance and coating adhesion of galvanized steel sheets, passivat...

Claims

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Application Information

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IPC IPC(8): C23C22/07C23C2/06C23C2/26C23C2/40
Inventor 张千峰陈均樊传刚王季芬
Owner MAANSHAN WEIDELI LUBRICATION MATERIAL TECH
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