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Anticorrosive coating process adopting nanometer composite powder sherardizing and used for metal product

A metal product and anti-corrosion coating technology, applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of loss of protection, high-frequency vibration, easy damage, etc., and achieve enhanced coating compactness And the effect of improving corrosion resistance, improving the impact resistance of sand and gravel, and excellent performance

Inactive Publication Date: 2018-02-27
天津市澳博美特新材料科技开发有限公司
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Problems solved by technology

However, the actual service environment of metal products is very harsh. For example, they are often subjected to high-frequency vibrations caused by trains passing by, high-speed trains drive sand and soil to continuously impact the surface of metal products, harsh weather conditions in the wild, and man-made damage. Zinc-rich coatings and hot-dip galvanized coatings are easily damaged or even peeled off in the above harsh environments, thus losing their protective effect

Method used

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Embodiment Construction

[0013] The following will be described in detail in conjunction with the embodiments of the present invention.

[0014] A nano-composite powder galvanized anti-corrosion coating process for metal products, comprising the following steps:

[0015] (1) Preparation of zinc sherardizing agent:

[0016] The zinc powder, rare earth composite powder, activator and filler are mixed according to a certain amount and then refined and ground. The composite powder after grinding is in the micro-nano level, the zinc content in the zinc powder is greater than 98%, and the particle size is 200-300 Compared with zinc powder with larger particle size, direct use of 200-300 mesh zinc powder can slow down the oxidation of zinc powder in the grinding process, improve the uniformity of zinc powder particle size, and improve the uniformity of mixing various powders; the rare earth The composite powder includes nano cerium oxide and nano lanthanum oxide, and the dosage is 5% to 8% of the weight of ...

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Abstract

The invention relates to a metal product nano-composite powder zinc-seeding anti-corrosion coating process, which includes the following steps: (1) preparing a zinc-seeding agent; (2) zinc-seeding treatment; (3) cooling the metal product. According to the nano-composite powder galvanized anti-corrosion coating process for metal products described in the present invention, the metal products can maintain excellent anti-corrosion performance even under high-frequency vibration, high-speed impact, severe weather, and human damage.

Description

technical field [0001] The invention relates to the field of nano-composite powder zinc-seeding anti-corrosion, in particular to a nano-composite powder zinc-seeding anti-corrosion coating process for metal products. Background technique [0002] At present, zinc-rich coating or hot-dip galvanizing technology is usually used for anti-corrosion treatment on the surface of metal products. The typical application of zinc-rich coating technology is organic zinc-rich coating and inorganic zinc-rich coating. The cathodic protection effect of metal zinc in the coating on metal products can effectively delay corrosion; hot-dip galvanizing technology is also based on the same principle Corrosion retarded. However, the actual service environment of metal products is very harsh. For example, they are often subjected to high-frequency vibrations caused by trains passing by, high-speed trains drive sand and soil to continuously impact the surface of metal products, harsh weather conditi...

Claims

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Application Information

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IPC IPC(8): C23C10/36
CPCC23C10/36
Inventor 王欣
Owner 天津市澳博美特新材料科技开发有限公司
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