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Chromate-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof

A chrome-free passivation, zinc-aluminum-magnesium technology, applied in the coating, metal material coating process, hot-dip plating process, etc., can solve the problems affecting the storage stability of the passivation solution and the stability of the coating film, and achieve a solution Effects of blackening problem, enhanced adhesion, and excellent corrosion resistance

Active Publication Date: 2020-10-02
QUAKER CHEM CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent contains silane, which is very prone to condensation over time, which affects the storage stability of the passivation solution and the performance stability of the coating film

Method used

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  • Chromate-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof
  • Chromate-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof
  • Chromate-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, its specific implementation is described in detail below:

[0030]

[0031] Table 1

[0032]

[0033] Table 2

[0034] According to the formulation components in Table 1 and the content of each component in Table 2, the chromium-free passivation solution of Examples 1-8 of the present invention was prepared.

[0035] The chromium-free passivation solution for zinc-aluminum-magnesium steel plate of the present invention is prepared by the following preparation method: first prepare modified acrylic resin; then add zirconium compound into deionized water to disperse evenly, and then add organic acid and / or organic acid salt; then add a pH regulator to adjust the pH to alkaline; finally add a modified acrylic resin, stir evenly to obtain a chromium-free passivation solution.

[0036] 1. Preparation of silicone-modified acrylic resin: Add emulsifier to d...

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Abstract

The invention discloses a chromate-free passivation solution for a zinc-aluminum-magnesium steel plate. The chromate-free passivation solution comprises 02-10% of zirconium compound, 0.2-25% of organic acid and / or organic acid salt, 0.2-80% of modified acrylic resin, 0.1-10% of a functional agent, and the balance deionized water. According to the chromate-free passivation solution for the zinc-aluminum-magnesium steel plate, the problem of blackening of a zinc-aluminum-magnesium plated steel plate can be solved, and meanwhile, the excellent anti-corrosion performance at the small coating thickness is achieved. The invention further discloses a preparation method of the chromate-free passivation solution for the zinc-aluminum-magnesium steel plate.

Description

technical field [0001] The invention relates to a chromium-free passivation solution for zinc-aluminum-magnesium steel plates and a preparation method thereof. Background technique [0002] With the increasing development of coating technology, and the continuous improvement of the performance requirements of the preparation methods for automobiles, household appliances and construction, the traditional pure galvanized steel sheet can no longer meet the industry's requirements for corrosion resistance. However, the traditional galvanized steel sheet cannot meet the existing market demand due to its limited processing performance. Under the dual development of market demand and coating technology, in recent years, galvanized aluminum-magnesium panels with excellent corrosion resistance have developed rapidly and gradually realized commercial production. [0003] According to the article "Progress in the Development and Preparation of Hot Dip Galvanized Aluminum-Magnesium Coa...

Claims

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Application Information

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IPC IPC(8): C23C22/60C23C2/06C23C2/26C23C2/40
CPCC23C22/60C23C2/06C23C2/26C23C2/40
Inventor 路瑶蒋文彬
Owner QUAKER CHEM CHINA