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Galvanization method for steel component of solar photovoltaic/photo-thermal supporting system

A solar photovoltaic and support system technology, applied in photovoltaic power generation, hot-dip plating process, coating, etc., can solve the problems of poor corrosion resistance of galvanized components, unreasonable process settings, unstable product quality, etc., and achieve corrosion resistance Strong, low cost, simple process effect

Pending Publication Date: 2020-01-17
QINGHAI JINGONG NEW ENERGY TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, galvanized solar photovoltaic / photothermal support system steel components show great advantages, but in the galvanizing process, most methods have problems such as unreasonable process settings, poor operating environment, high energy consumption, and unstable product quality. The corrosion resistance of galvanized components is poor, so it is not suitable for use in some alpine and saline areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A galvanizing process for steel components of a solar photovoltaic support system, comprising the following steps,

[0029] (1) Degreasing the steel components of the solar photovoltaic support system without phosphorus: the non-phosphorus degreasing agent is an aqueous solution of OP emulsifier, the mass concentration is 2%, the degreasing working temperature is 25°C, and the degreasing time is 25 minutes.

[0030] (2) Pickling the steel components of the solar photovoltaic support system to remove surface oxides: pickling with hydrochloric acid, the concentration of hydrochloric acid is 15%, and the pickling temperature is room temperature; after pickling, the steel components are washed with water.

[0031] (3) Dip the steel components of the solar photovoltaic support system into the electroplating solution, and then dry it: the main component of the electroplating solution is a mixed aqueous solution of zinc chloride and ammonium chloride, and the total amount of zi...

Embodiment 2

[0038] A galvanizing process for steel components of a solar photothermal support system, comprising the following steps,

[0039] (1) Degreasing the steel components of the solar thermal support system without phosphorus: the non-phosphorus degreasing agent is an aqueous solution of OP emulsifier, the mass concentration is 3%, the degreasing working temperature is 45°C, and the degreasing time is 30 minutes.

[0040](2) Pickling the steel components of the solar thermal support system to remove surface oxides: pickling with hydrochloric acid, the concentration of hydrochloric acid is 25%, and the pickling temperature is room temperature; after pickling, the steel components are washed with water.

[0041] (3) Dip the steel components of the solar thermal support system into the plating solution, and then dry it: the main component of the plating solution is a mixed aqueous solution of zinc chloride and ammonium chloride, and the amount of zinc chloride and ammonium chloride in...

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Abstract

The invention provides a galvanization method for a steel component of a solar photovoltaic / photo-thermal supporting system and relates to the technical field of surface treatment engineering. The method comprises the following steps that the steel component of the solar photovoltaic / photo-thermal supporting system is subjected to non-phosphorus degreasing, acid pickling, soaking in a galvanization assistance solution, drying, hot galvanization, cooling and passivation in sequence, and the galvanization process for the steel component of the solar photovoltaic / photo-thermal supporting system is completed. The galvanization method is simple in process, good in operation environment, high in efficiency and low in cost, and the steel component, subjected to galvanization by adopting the method, of the solar photovoltaic / photo-thermal supporting system is stable in performance and high in corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of surface treatment engineering, in particular to a method for galvanizing steel components of a solar photovoltaic / photothermal support system. Background technique [0002] The solar photovoltaic / photothermal support system must not only ensure the safe operation of the solar photovoltaic / photothermal system but also have cost advantages. Considering the actual needs of the current photovoltaic / photothermal market, angle iron and wood supports are no longer suitable for large-scale power generation. Compression resistance, corrosion resistance, maintenance-free and other characteristics are required, and the aluminum alloy bracket is not suitable for use in areas with high wind speed. Therefore, galvanized solar photovoltaic / photothermal support system steel components show great advantages, but in the galvanizing process, most methods have problems such as unreasonable process settings, poor operating en...

Claims

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Application Information

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IPC IPC(8): C23C2/06C23C2/02C23C2/26C23G1/08C23G1/24C23C22/50
CPCC23C2/06C23C2/26C23G1/08C23G1/24C23C22/50C23C2/026C23C2/024C23C2/30C23C2/29
Inventor 魏明洪剑波金红祥李生福张方金张文栋
Owner QINGHAI JINGONG NEW ENERGY TECH CO LTD
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