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Coating formation composition and metal material treatment method

A metal material and processing method technology, applied in metal material coating process, coating, hot dip plating process and other directions, can solve the problems of increased cost, difficult metal material processing, complicated procedures, etc., and achieve excellent rust resistance. Effect

Inactive Publication Date: 2018-11-23
OKUNO CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, metal materials that do not easily form a chemical conversion film such as molten zinc have a problem that chemical conversion treatment is difficult and sufficient rust resistance cannot be imparted.
[0004] In addition, when a film is formed by a chemical conversion film or a non-chromium-based surface treatment, there is a problem that the film is formed in a single layer and the rust resistance is insufficient.
In recent years, the rust resistance required for metal materials has been increasing, and there is a problem that such a treatment method cannot achieve satisfactory rust resistance.
[0005] In addition, in order to improve the rust resistance, for example, after performing chemical conversion treatment to form a chemical conversion film, it is also considered to perform a non-chromium-based surface treatment to form a chemical conversion treatment film and a surface treatment film, but the chemical conversion must be carried out in a separate process. Processing and surface treatment, there are problems such as complicated process and high cost

Method used

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  • Coating formation composition and metal material treatment method
  • Coating formation composition and metal material treatment method
  • Coating formation composition and metal material treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] (Preparation of film-forming composition)

[0125] Solutions of the complexed alkoxysilane oligomers shown in Table 1 were prepared. Specifically, 30% by mass of an alkoxysilane oligomer composed of 15% by mass of tetramethoxysilane and 15% by mass of 3-mercaptopropylsilane relative to 100% by mass of an alkoxysilane oligomer solution , and 53.4% ​​by mass of propylene glycol were mixed to prepare a liquid mixture. Next, water and dioctyloxybisoctyl glycolate titanium were added to the above mixed solution in an amount of 8.3% by mass, and water was further added to 8.3% by mass to undergo hydrolysis and polycondensation to prepare an alkoxysilane oligomer solution.

[0126] Then, with the alkoxysilane oligomer in the solution as 100 mass parts, add 15 mass parts of chromium sulfate to the alkoxysilane oligomer solution, further add the propylene glycol dispersion of colloidal silicon dioxide (colloidal dioxide The silicon concentration is 30% by mass) so that the soli...

Embodiment 2～10、 comparative example 1～4

[0130] Each component was mixed according to the formulation shown in Table 1, and a film-forming composition was prepared in the same manner as in Example 1, and a film was formed.

[0131] In addition, as a lubricant, the following lubricant was used.

[0132] · Lanolin wax: BYK CERACOL609N

[0133] · Polytetrafluoroethylene wax: Hydrocerf9174 manufactured by SHAMROCK TECHNOLOGIES

[0134] ・Simethicone oil: Shin-Etsu Chemical Co., Ltd. KF96

[0135] Moreover, in the Example and the comparative example which used the galvanized steel sheet which performed the blackening process, the blackening process was performed on the following conditions.

[0136] [blackening processing]

[0137] A galvanized steel sheet (70 mm x 100 mm) was dipped in 0.2% by mass of thioglycolic acid, 5% by mass of phosphoric acid, 1% by mass of iron nitrate nonahydrate, and 93.8% by mass of ion-exchanged water at 30°C for 60 seconds. In the blackening treatment solution formed.

[0138] The metal ...

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Abstract

The present invention addresses the problem of providing a coating formation composition that enables formation of a lamination coating in which a chemical conversion coating and a surface treatment coating are laminated by applying and heating the coating formation composition on the surface of a metal material, without conducting a chemical conversion treatment on the metal material separately from the surface treatment, and that can impart excellent rust prevention properties to the metal material. The present invention also addresses the problem of providing a metal material treatment method. The present invention provides a coating formation composition characterized by comprising an alkoxysilane oligomer, a metal salt, and a solvent and characterized in that the solvent is water and / or a water-soluble organic solvent, and the content for the metal salt is 0.1-30 parts by mass with respect to 100 parts by mass of the alkoxysilane oligomer.

Description

technical field [0001] The present invention relates to a film-forming composition and a method for treating metallic materials. Background technique [0002] Conventionally, as antirust treatment methods for various metal materials such as zinc, aluminum, magnesium, and their alloys, chemical conversion treatment using an aqueous solution of chromic acid, etc., and non-chromium-based surface treatment have been performed (for example, refer to Patent Documents 1 to 7). . [0003] However, metal materials that are difficult to form a chemical conversion film such as molten zinc have a problem that chemical conversion treatment is difficult and sufficient rust resistance cannot be imparted. [0004] In addition, when a film is formed by a chemical conversion film or a non-chromium-based surface treatment, there is a problem that the film is formed in a single layer and the rust resistance is insufficient. In recent years, the antirust property required for metallic material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C26/00C23C22/48
CPCC08K2003/321C08K3/22C08K3/34C08K2003/287C09D7/20C09D7/65C08K3/36C08K2003/3045C23C2222/20C23C2222/10C09D183/08C08G77/28C23C22/74C23C22/10C08K5/057C08K3/30C08K3/28C23C22/08C23C22/24C23C22/48C23C22/53C23C22/82C09D7/61C09D183/04C23C22/76C23C22/78
Inventor 村桥浩一郎岛桥克将野崎匡文荫久辉彦
Owner OKUNO CHEM IND CO LTD
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