Treatment process for stainless steel profile for photovoltaic panel bracket

A photovoltaic panel and processing technology, which is applied to the processing technology field of stainless steel profiles for photovoltaic panel brackets, can solve the problems of reducing the service life of the mold, the surface quality of the finished product, the strong corrosion of the mold cavity, and the stress corrosion, and achieves excellent mechanical properties. and corrosion resistance, outstanding corrosion resistance, energy saving effect

Inactive Publication Date: 2015-08-26
KINGSHORE NEW RESOURCES ELECTRIC JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polymer plastic materials such as polyvinyl chloride and flame retardant ABS will decompose harmful elements such as Cl during the forming process, which is highly corrosive to the mold cavity, causing pitting corrosion, stress corrosion and other failures, and then reducing the service life of the mold and finished surface quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A treatment process for a stainless steel profile for a photovoltaic panel support provided in this embodiment includes the following specific steps:

[0023] Select S316 martensitic stainless steel and put it into an electric heating furnace. Firstly, the temperature is raised to 250°C at a heating rate of 300°C / h for preheating, and then heated to a processing temperature of 1560°C at a heating rate of 150°C / h. The holding time of the stainless steel melt is 2h;

[0024] Put rare earth elements into the furnace at 1560°C, the input amount of rare earth elements is 1.1% of the mass of the above-mentioned stainless steel melt, after fully stirring evenly, keep warm for 2 hours, and then put in the same quality of rare earth elements again, the holding time is 2h, put in rare earth elements Feed high-purity Ar gas into the electric furnace throughout the whole process, and the pressure of Ar feeding is 80MPa;

[0025] The furnace temperature is lowered to 1490°C, ...

Embodiment 2

[0030] A treatment process for a stainless steel profile for a photovoltaic panel support provided in this embodiment includes the following specific steps:

[0031] Select S316 martensitic stainless steel and put it into the electric heating furnace. First, the temperature is raised to 250°C at a heating rate of 360°C / h for preheating, and then heated at a heating rate of 125°C / h to the processing temperature of 1560°C. The holding time of the stainless steel melt is 1.5h;

[0032] Put rare earth elements into the furnace at 1560°C, the input amount of rare earth elements is 1.125% of the mass of the above molten stainless steel, after fully stirring evenly, keep it warm for 2 hours, and then put the same quality of rare earth elements again, the holding time is 2h, put in rare earth elements Feed high-purity Ar gas into the electric furnace throughout the whole process, and the pressure of Ar is 65MPa;

[0033] The furnace temperature is lowered to 1500°C, and high-pu...

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Abstract

The invention discloses a treatment process for a stainless steel profile for a photovoltaic panel bracket. The treatment process for the stainless steel profile for the photovoltaic panel bracket comprises the following steps: feeding selected S316 martensitic stainless steel into an electric heating furnace, preheating, melting and performing heat preservation, feeding rare earth elements into the furnace, introducing high-purity Ar into the electric heating furnace in the whole feeding process, performing vacuum degassing and Ar-protected die casting, acid-washing a casting with hydrochloric acid, performing galvanizing and coating treatment, and finally performing curing in a drying oven. According to the treatment process for the stainless steel profile for the photovoltaic panel bracket, the treated profile is endowed with high structure properties, and carbide in die steel can be well controlled to substantially exist in form of M3C, so that the S316 martensitic stainless steel has high mechanical properties and corrosion resistance; in addition, the steps of the process are simple, and energy resources are effectively saved.

Description

technical field [0001] The invention relates to the technical field of manufacturing photovoltaic equipment, in particular to a process for processing stainless steel profiles for photovoltaic panel supports. Background technique [0002] Polymer plastic materials such as polyvinyl chloride and flame retardant ABS will decompose harmful elements such as Cl during the forming process, which is highly corrosive to the mold cavity, causing pitting corrosion, stress corrosion and other failures, and then reducing the service life of the mold and finished surface quality. Using molecular dynamics, first principles and other methods from the microscopic scale, it is calculated that iron-carbon clusters will reduce the adsorption of chloride ions with the addition of Cr, that is, the carbonization of the two common configurations of M23C6 and M3C. It is not easy to adsorb chloride ions, but M23C6 carbide will cause "chromium-poor" of the surrounding matrix, which will cause pittin...

Claims

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Application Information

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IPC IPC(8): C22C33/04C21C7/10C21D6/00
Inventor 朱冬宏钱纪明
Owner KINGSHORE NEW RESOURCES ELECTRIC JIANGSU
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