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Surface treatment agent and zinc-plating material

A surface treatment agent and raw material technology, applied in the field of surface treatment agents and galvanized materials, can solve the problems of decreased corrosion resistance of the film layer, failure to meet environmental protection requirements, etc., and achieve the effect of excellent corrosion resistance

Inactive Publication Date: 2013-10-23
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defect that the corrosion resistance of the film layer obtained by the existing trivalent chromium passivating agent decreases at or after high temperature and does not meet the environmental protection requirements, the invention provides a trivalent chromium surface treatment agent and a plating zinc material

Method used

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  • Surface treatment agent and zinc-plating material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment is used to illustrate the surface treatment agent and galvanizing material provided by the present invention.

[0046] 50 grams of styrene-acrylic emulsion (purchased from Guangzhou Chaolong Chemical Technology Co., Ltd., brand xy-108b styrene-acrylic emulsion, solid content of 48% by weight, viscosity of 500-1000mPa·s), 40 grams of fluorocarbon emulsion (purchased From Beijing Shouchuang Nano Technology Co., Ltd., SKFT-I water-based fluorocarbon emulsion with a solid content of 45% by weight and a viscosity of 500-1000mPa·s), 2 grams of trivalent chromium hydroxide, and 120 grams of aluminum dihydrogen phosphate Add 5 grams of boric acid to 500ml of water to dissolve, then add water to 1L, and mix well at 25°C to obtain surface treatment agent A1.

[0047] 0.2g of the surface treatment agent A1 prepared above was coated on the surface of galvanized steel plate (Panzhihua Steel and Vanadium Co., Ltd. of Panzhihua Iron and Steel Group, model DX54D, area 1m×1m)...

Embodiment 2

[0049] This embodiment is used to illustrate the surface treatment agent and galvanizing material provided by the present invention.

[0050] 60 grams of styrene-acrylic emulsion (purchased from Guangzhou Chaolong Chemical Technology Co., Ltd., brand xy-108b styrene-acrylic emulsion, solid content of 48% by weight, viscosity of 500-1000mPa·s), 20 grams of fluorocarbon emulsion (purchased From Beijing Shouchuang Nano Technology Co., Ltd., SKFT-I water-based fluorocarbon emulsion with a solid content of 45% by weight and a viscosity of 500-1000mPa·s), 1 g of trivalent chromium hydroxide, 100 g of aluminum dihydrogen phosphate Add 3 grams of boric acid to 500ml of water to dissolve, then add water to 1L, and mix well at 25°C to obtain surface treatment agent A2.

[0051] Apply 1 gram of the surface treatment agent A2 prepared above on the surface of galvanized steel sheet (Panzhihua Steel and Vanadium Co., Ltd. of Panzhihua Iron and Steel Group, model DX54D, area 1m×1m), and dry with ...

Embodiment 3

[0053] This embodiment is used to illustrate the surface treatment agent and galvanizing material provided by the present invention.

[0054] 20 grams of styrene-acrylic emulsion (purchased from Guangzhou Chaolong Chemical Technology Co., Ltd., brand xy-108b styrene-acrylic emulsion, solid content of 48% by weight, viscosity of 500-1000mPa·s), 60 grams of fluorocarbon emulsion (purchased From Beijing Shouchuang Nano Technology Co., Ltd., SKFT-I water-based fluorocarbon emulsion with a solid content of 45% by weight and a viscosity of 500-1000mPa·s), 3 grams of trivalent chromium hydroxide, and 80 grams of aluminum dihydrogen phosphate Add 1 gram of boric acid to 500ml of water to dissolve, then add water to 1L, and mix well at 25°C to obtain surface treatment agent A3.

[0055] Apply 1.5 grams of the surface treatment agent A3 prepared above on the surface of galvanized steel sheet (Panzhihua Steel & Vanadium Co., Ltd. of Panzhihua Iron and Steel Group, model DX54D, area 1m×1m), an...

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Abstract

The invention provides a trivalent chromium surface treatment agent and a zinc-plating material. The surface treatment agent is obtained by evenly mixing a raw mix; the raw mix comprises a first organic film former, a second organic film former and water; the first organic film former is a styrene-acrylic emulsion and / or a silicone-acrylic emulsion; and the second organic film former is a fluorocarbon emulsion and / or fluoro-silicon emulsion. The trivalent chromium surface treatment agent is characterized in that the raw mix also comprises a trivalent chromium compound and phosphate. The zinc-plating material provided by the invention comprises a zinc-plating base material and a coating adhering to the zinc-plating base material, and is characterized in that the coating is a solid product of the surface treatment agent. The coating obtained by solidifying the surface treatment agent provided by the invention has excellent corrosion resistance at high temperature or under the condition of being treated at high temperature. Moreover, trivalent chromium in the coating cannot be converted into hexavalent chromium, and thereby, the environmental-protection requirement is completely met.

Description

Technical field [0001] The invention relates to a surface treatment agent and a galvanized material. Background technique [0002] One of the main uses of galvanized materials such as galvanized steel sheets or steel coils is used in electrical appliance manufacturing, such as air conditioners and computer cases. Before storage, transportation or use, galvanized materials are generally passivated. Passivation treatment generally involves contacting the passivation solution with the galvanized material, such as spraying the passivation solution onto the surface of the galvanized material. The passivation solution includes the passivation solution containing hexavalent chromium and the passivation solution without hexavalent chromium. 化液. [0003] On February 13, 2003, the European Parliament and the Council passed the "Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment", referred to as the RoHS Directive, which is the EU D...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/05C23C22/68
Inventor 许哲峰梅东生程兴德陈永娄燕周一林张爱萍李国安
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES