Photovoltaic solar frame aluminium alloy section with overlength service-life, production method and structure thereof

Abstract

The invention relates to a super-long life aluminum alloy proximate matter used on a photovoltaic solar framework, a preparation method, and a structure. The raw material of the proximate matter mainly comprises alloying elements by weight percentage as follows: Si is 0.3 to 0.5 percent, Mg is 0.6 to 1.1 percent, Cu is 0.06 to 0.12 percent, Fe is less than or equals to 0.2 percent, Ti is less than or equals to 0.1 percent, Mn is less than or equals to 0.1 percent, Zn is less than or equals to 0.1 percent, Cr is less than or equals to 0.1 percent, and the other weight percentage is composed of Al and ineluctable impurities, wherein, Si:Mg equals to 1:1.75 to 1:180. The invention has the preparation method that the Al is put in a smelter hearth for smelting; when the temperature of Al liquid in the smelter hearth reach 720 DEG C to 760 DEG C, the Cu is added first and then the Si and the Mg are added in sequence according to proportions, and the smelting lasts for 5.5 to 6 hours; then a aluminum bar is casted and extruded to form the aluminum alloy proximate matter. The structure of the framework comprises the proximate matter (1) and a corner code (2). The super-long life aluminum alloy proximate matter has high intensity and strong corrosion resistance, and the fit clearance between the proximate matters cannot be loosened.

Description

Technical field [0001] The invention relates to a photovoltaic solar frame, in particular to an aluminum alloy profile, a preparation method and a structure for an ultra-long-life photovoltaic solar frame. It belongs to the technical field of building components. Background technique [0002] Currently, photovoltaic solar frames generally use beautiful and lightweight aluminum alloy profiles made of 6063 materials. The strengthening phase Mg2Si in the 6063 material, the alloy ratio is Si:Mg=1:1.73, and the actual production is based on the ratio of Si:Mg=1:1.3 to 1:1.5, such as: Si0.4, then Mg0.62, making Si Relatively surplus, Cu in another 6063 material is used as an impurity in the aluminum ingot, and its content is controlled, resulting in a low tensile strength of 160MPa. [0003] The current common photovoltaic solar frame structure is assembled with two 90° right-angled aluminum alloy profiles, which are punched or punched, and then fixed with screws. The joints are fixed ...

AI Technical Summary

Problems solved by technology

The strengthening phase Mg2Si in the 6063 material, the alloy ratio is Si: Mg = 1: 1.73, and the actual production is based on the ratio of Si: Mg = 1: 1.3 to 1: 1.5, such as: Si0.4, then Mg0.62, so that Si Relatively surplus, in addition, Cu in the 6063 material is used as an impurity in the aluminum ingot, and its content is controlled, resulting in a low tensile strength of 160MPa

The disadvantage is that the anti-corrosion surface treatment of the end face of the 90° right-angle profile is damaged, and the bolts are directly exposed; the 45° slope is fixed with a simple aluminum corner code, and the profile fit clearance is difficult to ensure and easy to loosen

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