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A kind of chromium-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof

A chromium-free passivation, zinc-aluminum-magnesium technology, applied in coatings, metal material coating processes, hot dip plating processes, etc., can solve the problems affecting the storage stability of the passivation solution, the performance stability of the coating film, etc. Blackening problem, excellent corrosion resistance, effect of enhancing adhesion

Active Publication Date: 2022-08-02
QUAKER CHEM CHINA
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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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  • A kind of chromium-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof
  • A kind of chromium-free passivation solution for zinc-aluminum-magnesium steel plate and preparation method thereof
  • A kind of chromium-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 solutions of the present invention, the specific embodiments thereof are described in detail below:

[0030]

[0031] Table 1

[0032]

[0033] Table 2

[0034] The chromium-free passivation solutions of Examples 1-8 of the present invention were prepared according to the formula components in Table 1 and the contents of each component in Table 2.

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

[0036] 1. Preparation of silicone-modified acrylic resin: a...

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Abstract

The invention discloses a chromium-free passivation solution for zinc-aluminum-magnesium steel sheet, comprising 0.2-10% 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 functional additives; the balance of deionized water, the chromium-free passivation solution for zinc-aluminum-magnesium steel sheet of the present invention can effectively solve the problem of blackening of zinc-aluminum-magnesium steel sheet, and at the same time realize low coating Excellent corrosion resistance in thickness. The invention also discloses a preparation method of a chromium-free passivation solution for the zinc-aluminum-magnesium steel sheet.

Description

technical field [0001] The invention relates to a chromium-free passivation solution for zinc-aluminum-magnesium steel sheets 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 coating materials in the preparation methods of automobiles, home appliances and construction, the traditional pure galvanized steel sheets 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 processing performance limitation. Under the dual development of market demand and coating technology, galvanized aluminum magnesium sheet with excellent corrosion resistance has developed rapidly in recent years, and has gradually achieved commercial production. [0003] According to the article "Development and Preparation Method of Hot-Dip Galvanized Aluminu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/60C23C2/06C23C2/26C23C2/40
CPCC23C22/60C23C2/06C23C2/26C23C2/40
Inventor 路瑶蒋文彬
Owner QUAKER CHEM CHINA
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