阅读说明：本技术 一种太阳能铝合金型材的制备工艺 (Preparation process of solar aluminum alloy section ) 是由 王平 张洪波 顾洁云 顾慧丽 邵旭 高晓春 邰网晨 于 2019-11-29 设计创作，主要内容包括：本发明提供了一种太阳能铝合金型材的制备工艺,包括以下步骤：S1：将铝料加入电炉中熔化,熔化温度700~740℃,并进行均热；S2：保温结束后加入Si、Fe、Cu、Mn、Mg材料,并充分混合,并进行均热保温；S3：将模具预热到350～400℃,将第二步得到的铝合金溶液浇入挤压模具中进行静置浇铸；S4：将铸造得到的铸锭进行退火处理,通过向铝合金中熔液中添加适量的Si、Fe、Cu、Mn和Mg化学元素,在Si、Fe、Cu、Mn和Mg多种元素的作用下,均衡了各种性能,形成了稳定的晶体结构,从而有效的改善了铝合金的力学性能,本发明提供的铝合金型材具有良好的耐磨性、良好的耐疲劳性、和良好的可焊接性等优良的物理性能,可满足太阳能支架的特殊要求。(The invention provides a preparation process of a solar aluminum alloy section, which comprises the following steps of S1, adding an aluminum material into an electric furnace for melting at the melting temperature of 700 ~ 740 ℃ and carrying out soaking, S2, adding Si, Fe, Cu, Mn and Mg materials after heat preservation, fully mixing, carrying out soaking and heat preservation, S3, preheating a mold to 350-400 ℃, pouring the aluminum alloy solution obtained in the second step into an extrusion mold for standing and casting, S4, carrying out annealing treatment on a cast ingot obtained by casting, and balancing various performances under the action of various elements of Si, Fe, Cu, Mn and Mg by adding a proper amount of chemical elements of Si, Fe, Cu, Mn and Mg into molten aluminum alloy, so that a stable crystal structure is formed, and the mechanical properties of the aluminum alloy are effectively improved.)

1. A preparation process of a solar aluminum alloy profile is characterized by comprising the following steps: the method comprises the following steps:

s1, adding the aluminum material into an electric furnace to be melted at the temperature of 700 ~ 740 ℃, and carrying out soaking;

s2: adding Si, Fe, Cu, Mn and Mg materials after the heat preservation is finished, fully mixing, and carrying out soaking and heat preservation;

s3: preheating a die to 350-400 ℃, and pouring the aluminum alloy solution obtained in the second step into an extrusion die for standing and casting;

s4: and annealing the cast ingot obtained by casting.

2. The process for preparing a solar aluminum alloy profile as claimed in claim 1, wherein: in S1, the soaking temperature is 680 ℃ and the soaking time is 50 minutes.

3. The process for preparing the solar aluminum alloy profile according to claim 1, wherein in S2, the soaking temperature is 640 ~ 650 ℃ and the soaking time is 20 minutes.

Technical Field

The invention relates to the field of aluminum alloy manufacturing, in particular to a preparation process of a solar aluminum alloy section.

Background

The aluminum alloy section is one of the mature materials applied in the light weight material, and can meet the special requirements of the solar bracket, but the problems of poor formability, poor surface quality, low strength and horizontal dishing, low weldability, low steel plate, high production cost and the like exist in the traditional aluminum alloy production and manufacturing of the solar bracket.

Disclosure of Invention

The invention aims to solve the technical problems that a solar section bracket manufactured by the traditional aluminum alloy production has poor formability, poor surface quality, low strength and low horizontal indentation, low weldability compared with a steel plate, high production cost and the like, and provides a preparation process of a solar aluminum alloy section to solve the problems.

The technical scheme includes that the preparation process of the solar aluminum alloy section comprises the following steps of S1 adding an aluminum material into an electric furnace to be melted at the melting temperature of 700 ~ 740 ℃ and carrying out soaking, S2 adding Si, Fe, Cu, Mn and Mg materials after heat preservation is finished, carrying out soaking and heat preservation, S3 preheating a mold to 350-400 ℃, pouring the aluminum alloy solution obtained in the second step into an extrusion mold to carry out standing casting, and S4 annealing cast ingots obtained by casting.

Further: in S1, the soaking temperature is 680 ℃ and the soaking time is 50 minutes.

Further, in S2, soaking temperature is 640 ~ 650 deg.C and 20 minutes.

The aluminum alloy material for the solar section bracket has the beneficial effects that a proper amount of chemical elements of Si, Fe, Cu, Mn and Mg are added into molten aluminum alloy, various performances are balanced under the action of various elements of Si, Fe, Cu, Mn and Mg, and a stable crystal structure is formed, so that the mechanical property of aluminum alloy is effectively improved.

Detailed Description

While the following is a description of the preferred embodiments of the present invention, it should be noted that those skilled in the art can make various modifications and improvements without departing from the principle of the embodiments of the present invention, and such modifications and improvements are considered to be within the scope of the embodiments of the present invention.

Specifically, Si element can ensure the strength of the aluminum alloy, and proper content can improve the plasticity and toughness of the alloy; mn element improves the alloy strength and improves the hardenability of the aluminum alloy to a certain extent, Mn can prevent the recrystallization process of the aluminum alloy and can obviously refine recrystallized grains, the refinement of the recrystallized grains is mainly to play a role in inhibiting the growth of the recrystallized grains through MnAl6 compound dispersoids, and the other role of MnAl6 is to dissolve impurity iron to form (Fe, Mn) Al6 and reduce the harmful effect of the iron; the Mg element can strengthen the tensile strength of the aluminum alloy, and form Mg5Al8 compound uniform precipitation under the catalysis of Mn, thereby improving the corrosion resistance and the welding performance.

The following examples are provided to further illustrate the beneficial effects of the present invention.