阅读说明：本技术 一种用于太阳能型材支架的铝合金材料 (Aluminum alloy material for solar section bar bracket ) 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：本发明提供了一种用于太阳能型材支架的铝合金材料,所述铝合金材料由下述质量百分比的组分构成：Si 8.0~14.5%、Fe 0~0.50%、Cu 0~0.12%、Mn 0.3~1.2%、Mg 0.15~0.4%、Zn 0~0.1%、Cr 0~0.05%、Ti 0.02~0.2%、Ca 0~0.05%、P 0~0.05%,杂质≤0.15%,余量为Al,每个杂质元素成分含量皆小于0.04%,通过向铝合金中添加适量的Si、Mn、Mg和Ti化学元素,在Si、Mn、Mg和Ti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材料具有良好的耐磨性、良好的耐疲劳性、和良好的可焊接性等优良的物理性能,可满足太阳能型材的特殊要求。(The invention provides an aluminum alloy material for a solar section bracket, which comprises the following components in percentage by mass: 8.0-14.5% of Si, 0-0.50% of Fe, 0-0.12% of Cu, 0.3-1.2% of Mn, 0.15-0.4% of Mg, 0-0.1% of Zn, 0-0.05% of Cr, 0.02-0.2% of Ti, 0-0.05% of Ca, 0-0.05% of P, less than or equal to 0.15% of impurities and the balance of Al, wherein the content of each impurity element is less than 0.04%, and by adding a proper amount of Si, Mn, Mg and Ti chemical elements into the aluminum alloy, various performances are balanced under the action of various elements of Si, Mn, Mg and Ti, a stable crystal structure is formed, so that the mechanical property of the aluminum alloy is effectively improved.)

1. The utility model provides an aluminum alloy material for solar energy section bar support which characterized in that: the aluminum alloy material comprises the following components in percentage by mass: 8.0 to 14.5 percent of Si, 0 to 0.50 percent of Fe, 0 to 0.12 percent of Cu, 0.3 to 1.2 percent of Mn, 0.15 to 0.4 percent of Mg, 0 to 0.1 percent of Zn, 0 to 0.05 percent of Cr, 0.02 to 0.2 percent of Ti, 0 to 0.05 percent of Ca, 0 to 0.05 percent of P, less than or equal to 0.15 percent of impurity, and the balance of Al, wherein the content of each impurity element component is less than 0.04 percent.

2. An aluminium alloy material for solar section brackets according to claim 1, characterized in that: the aluminum alloy material comprises the following components in percentage by mass: 9.2 to 12.4 percent of Si, 0 to 0.3 percent of Fe, 0 to 0.05 percent of Cu, 0.5 to 0.7 percent of Mn, 0.25 to 0.3 percent of Mg, 0 to 0.05 percent of Zn, 0 to 0.03 percent of Cr, 0.05 to 0.09 percent of Ti, 0 to 0.015 percent of Ca, 0 to 0.02 percent of P, less than or equal to 0.15 percent of impurity, and the balance of Al, wherein the content of each impurity element component is less than 0.03 percent.

3. An aluminium alloy material for solar section brackets according to claim 1, characterized in that: the tensile strength RM of the aluminum alloy material is more than or equal to 180MPa, and the elongation after fracture is more than or equal to 6%.

Technical Field

The invention relates to the field of aluminum alloy manufacturing, in particular to an aluminum alloy material for a solar section bracket.

Background

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

Disclosure of Invention

The invention aims to solve the technical problems that the traditional aluminum alloy production for manufacturing a solar section bracket 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 an aluminum alloy material for the solar section bracket to solve the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows: an aluminum alloy material for a solar section bar bracket is composed of the following components in percentage by mass: 8.0 to 14.5 percent of Si, 0 to 0.50 percent of Fe, 0 to 0.12 percent of Cu, 0.3 to 1.2 percent of Mn, 0.15 to 0.4 percent of Mg, 0 to 0.1 percent of Zn, 0 to 0.05 percent of Cr, 0.02 to 0.2 percent of Ti, 0 to 0.05 percent of Ca, 0 to 0.05 percent of P, less than or equal to 0.15 percent of impurity, and the balance of Al, wherein the content of each impurity element component is less than 0.04 percent.

Further: the aluminum alloy material comprises the following components in percentage by mass: 9.2 to 12.4 percent of Si, 0 to 0.3 percent of Fe, 0 to 0.05 percent of Cu, 0.5 to 0.7 percent of Mn, 0.25 to 0.3 percent of Mg, 0 to 0.05 percent of Zn, 0 to 0.03 percent of Cr, 0.05 to 0.09 percent of Ti, 0 to 0.015 percent of Ca, 0 to 0.02 percent of P, less than or equal to 0.15 percent of impurity, and the balance of Al, wherein the content of each impurity element component is less than 0.03 percent.

Further: the tensile strength RM of the aluminum alloy material is more than or equal to 180MPa, and the elongation after fracture is more than or equal to 6%.

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

Specifically, Ti and Al form TiAl2 which becomes a non-spontaneous core during crystallization, and the TiAl and Al have the functions of refining a casting structure and a welding seam structure, so that primary crystals can be minimized, and the tensile strength and the elongation after fracture are obviously improved.

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