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Anticorrosion processing method used for surface of metal member

A technology of anti-corrosion treatment and metal components, which is applied in the direction of metal material coating process, coating, hot-dip plating process, etc., can solve the problems that the anti-corrosion technology of photovoltaic panels affects the life and regeneration of photovoltaic panels, and achieves the benefits of mechanics and Anti-corrosion performance, good fluidity, combined with firming effect

Inactive Publication Date: 2015-07-08
CHENGDU ZHENZHONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned prior art, due to natural factors such as gravity or wind load, the above-mentioned photovoltaic panels are mostly made of metal profiles. In this way, the anti-corrosion technology of photovoltaic panels has become a key factor affecting the life and regeneration of photovoltaic panels. The invention provides a method for anticorrosion treatment on the surface of metal components

Method used

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Examples

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Embodiment 1

[0020] A method for surface anti-corrosion treatment of metal components, used for surface anti-corrosion treatment of photovoltaic panels, comprising sequential cleaning, drying, hot-dip galvanizing and cooling steps, the cleaning includes sequential degreasing, inspection, acid The step of washing and washing with water is characterized in that the pickling is carried out on the photovoltaic panel frame with a pickling solution containing hydrogen chloride, hexamethylenetetramine and a corrosion inhibitor under the condition that the temperature range is between 30°C and 35°C. Cleaning, wherein, the concentration value of the hydrogen chloride in the cleaning solution is between 17%-22%, and the content of hexamethylenetetramine is between 2.5-4g / L;

[0021] The corrosion inhibitor also includes a nitrogen-containing compound corrosion inhibitor and a sulfur-containing compound corrosion inhibitor;

[0022] The hot-dip galvanizing step is to heat the zinc solution to 455-480...

Embodiment 2

[0025] This embodiment is further limited on the basis of Example 1. In order to prevent excessive precipitation of acid gas from the pickling solution during the proportioning process of the pickling solution and affect the composition content of the pickling solution, in the pickling step It also includes the proportioning process of the pickling solution. The proportioning process is to add the corrosion inhibitor into the solvent of the pickling solution, stir and fully dissolve, and then add hydrogen chloride and hexamethylenetetramine.

[0026] In order to avoid excessive thermal deformation due to the rapid rise of the temperature of the photovoltaic panel during galvanizing, and at the same time cause zinc liquid to burst due to the moisture on the surface of the photovoltaic panel, the drying step is to heat the photovoltaic panel to 130°C -160℃, and the holding time is between 2-3min. With the selection of the above temperature range and holding time, the surface of ...

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Abstract

The invention discloses an anticorrosion processing method used for surface of a metal member, which is used for anticorrosion processing of surface of a photovoltaic flat rack. The anticorrosion processing method comprises the steps of cleaning, drying, galvanizing and cooling in order, and the cleaning step comprises the steps of degreasing, examining, pickling and washing in order, the drying and galvanizing steps also comprise an assistant leaching step, the assistant leaching step is characterized in that the photovoltaic flat rack is immersed into a plating auxiliary for 5-8 minutes, the temperature of the plating auxiliary is between 50-57 DEG C, the plating auxiliary contains zinc chloride and ammonium chloride, the mass ratio of zinc chloride to ammonium chloride is between 1 and 4 to 1 and 10, and the plating auxiliary also contains glycerin. According to the invention, the technology route is simple, and the method is benefit for obtaining smoother galvanizing layer surface layer and more uniform galvanizing layer composition.

Description

technical field [0001] The invention relates to the field of solar power generation equipment processing, in particular to a method for anticorrosion treatment on the surface of metal components. Background technique [0002] Conventional energy sources such as coal, oil, and natural gas are increasingly depleted, and there are more and more problems caused by energy shortages in the world. As a clean, pollution-free, inexhaustible energy source, solar energy has played a very important role in the utilization of new energy sources in recent years. Important role, the existing urban street lighting facilities, the solar photovoltaic panel power generation group that has begun to take shape, and even the photovoltaic panels installed on the roof of the family have made outstanding contributions to reducing the dependence of existing production and life on the coal power industry. contribute. [0003] Usually, the fixed photovoltaic panel is installed on the photovoltaic pane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C2/06C23C2/34C23C2/02
Inventor 陈怀之王刚聂海涛张仁友胡国波
Owner CHENGDU ZHENZHONG ELECTRIC
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