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Aqueous treatment liquid integrating rust inhibitor and pretreatment agent and preparation method thereof

A pretreatment agent and treatment liquid technology, applied in chemical instruments and methods, anti-corrosion coatings, detergent compositions, etc., can solve problems such as complex processes, and achieve a wide range of applications, excellent corrosion resistance, and extended corrosion resistance. Effect

Active Publication Date: 2021-12-21
匠成环保新材料(烟台)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires that the industry must have a process related to workpiece rust prevention, rust removal, and pretreatment, and the process is relatively complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] In a second aspect, a method for preparing the above-mentioned aqueous treatment liquid is provided, comprising the steps of:

[0045] Mix the above components evenly.

[0046] In a third aspect, a method for treating a metal workpiece using the aqueous treatment solution is provided, comprising the steps of:

[0047] Surface treatment of metal workpieces to remove oxide films and pollutants on the surface of metal workpieces;

[0048]Immersing the workpiece to be treated in the aqueous treatment solution for a set time;

[0049] Take out the workpiece, wash it with water and dry it.

[0050] In some embodiments, the workpiece is soaked in the aqueous treatment solution for 2-15 minutes.

[0051] Further, the time for the workpiece to be soaked in the aqueous treatment solution is 4-6 minutes.

Embodiment 1

[0053] A water-based treatment liquid integrating rust inhibitor and pretreatment agent, the mass percentage of its raw materials is:

[0054] Chelating agent alendronic acid 7%, accelerator ammonium molybdate 0.2%, salt promoter calcium nitrate 0.18%, complexing agent citric acid 0.07%, neutralizing agent ammonium bicarbonate 3%, and the rest is water.

[0055] Prepare the treatment solution according to the above ratio, add a small amount of auxiliary film-forming agent, and adjust the pH of the solution to 5. The specific operation steps are as follows:

[0056] (1) Remove the oxide film and physically adsorbed pollutants on the metal surface;

[0057] (2) Immerse the workpiece to be treated in the treatment solution for 8 minutes;

[0058] (3) Take out the workpiece, wash it with water, and dry it at room temperature to form a colorless conversion film on the surface.

Embodiment 2

[0060] A water-based treatment liquid integrating rust inhibitor and pretreatment agent, the mass percentage of its raw materials is:

[0061] Chelating agent phytic acid 10%, accelerator sodium borate 0.9%, salt-promoting magnesium nitrate 0.11%, complexing agent aminotricarboxylic acid 0.12%, neutralizing agent sodium bicarbonate 10%, and the rest is water.

[0062] Prepare the treatment solution according to the above ratio, add a small amount of auxiliary film-forming agent, and adjust the pH of the solution to 7. The specific operation steps are as follows:

[0063] (1) Remove the oxide film and physically adsorbed pollutants on the metal surface;

[0064] (2) Immerse the workpiece to be treated in the treatment solution for 5 minutes;

[0065] (3) Take out the workpiece, wash it with water, and dry it at room temperature to form a colorless conversion film on the surface.

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PUM

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Abstract

The invention discloses an aqueous treatment liquid which integrates an antirust agent and a pretreatment agent and a preparation method thereof. The aqueous treatment liquid consists of the following components: chelating agent 5-17%, accelerator 0.1-3%, auxiliary 0.05-0.30% of salt, 0.03-3% of complexing agent, 0-15% of neutralizing agent, and the rest is water. For workpieces that need to be sprayed, after the original material is treated with this treatment solution, there is no need to remove the anti-rust film in further production, and the surface dust can be removed by washing with water before spraying, and the adhesion between the paint film and the substrate is ideal. For workpieces that do not need to be sprayed, they can be put into use after being treated in this treatment solution. Good corrosion resistance can prolong the service life of the metal, simplify the production process, and reduce production costs and waste of resources.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to an aqueous treatment solution integrating a rust preventive agent and a pretreatment agent and a preparation method thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Metal products have to go through complex processes such as storage, transportation, and deep processing before painting and other treatment processes. However, the corrosion of metals in the production process greatly affects the mechanical strength, color, appearance, and service life of the components, and makes the product The performance of precision and sensitivity is reduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C09D7/20C11D7/36C11D7/10C11D7/26C11D7/32C11D7/06C11D7/60
CPCC09D5/08C09D7/20C11D7/36C11D7/10C11D7/105C11D7/265C11D7/12C11D7/3245C11D7/06
Inventor 马厚义夏雪爽赫威
Owner 匠成环保新材料(烟台)有限公司