Aluminum alloy castings

The invention belongs to the technical field of metal fittings, in particular to an aluminium alloy for automobile fittings.

Background technology:

Aluminum alloy is widely used in automotive parts industry because of its high tensile strength, good elongation comprehensive mechanical properties, excellent corrosion resistance and low cost. With the continuous improvement of the performance requirements of aluminium alloy castings, more and more attention has been paid to how to produce aluminium alloy castings with excellent performance for automotive parts.

Technological implementation elements:

The technical problem to be solved by the present invention is to provide a strength, hardness suitable and super-resistance.

Aluminum alloy for grinding and corrosion resistant automotive parts.

In order to solve the above technical problems, the technical scheme of the present invention is: an aluminium alloy for automobile accessories, the innovation of which is that the weight of the components of the aluminium alloy is as follows:

Silicon 0.8-1.0 copies;

Iron 0.1-0.3 parts;

Magnesium 0.9-1.1;

Copper 0.11-0.13 copies;

0.2-0.3 phr of manganese;

Cadmium 0.01-0.05 copies;

Zinc 0.2-0.28;

Titanium 0.1-0.2 phr;

0.06-0.08 copies of nickel;

Aluminum 96.96-97.63 copies.

Further, the weight components of the components of the aluminum alloy are as follows:

Silicon 0.85-0.95 copies;

Iron 0.15-0.25 copies;

Magnesium 0.95-1.05 copies;

Copper 0.115-0.125 copies;

Manganese 0.24-0.26;

Cadmium 0.02-0.04;

Zinc 0.23-0.25;

Titanium 0.14-0.16;

0.065-0.075 copies of nickel;

97.11-97.37 copies of aluminium.

Further, the weight components of the components of the aluminum alloy are as follows:

Silicon 0.9 copies;

Iron 0.2 parts;

Magnesium 1.0 parts;

Copper 0.12 copies;

Manganese 0.25;

Cadmium 0.03;

Zinc 0.24;

Titanium 0.15;

0.07 copies of nickel;

97.34 copies of aluminium.

The advantages of the present invention are as follows: Compared with the traditional aluminum alloy for automobile parts, the content of silicon and magnesium elements in the formula is relatively increased. Mg2Si phase is the main strengthening phase in Al-Mg-Si alloy. By increasing the content of Mg and Si elements in the alloy, the content of Mg2Si phase in the alloy can be increased, which lays a foundation for the strength improvement of the final aluminum alloy for automobile parts. At the same time, proper addition of zinc can help improve the ultimate strength of aluminium alloy for automotive parts, and a small amount of copper can produce CuAl2 phase and Cu3Al2 phase, which can also help to improve the ultimate strength; in addition, a small amount of nickel element is added to the formula, which can be highly polished and corrosion resistant; therefore, the strength and hardness of the automotive parts made by the aluminium alloy of the present invention are all appropriate. It meets the production requirements of automotive parts, has good ductility and can meet the requirements of drilling. At the same time, the automotive parts are super wear-resistant and corrosion-resistant, thus improving their service life.

Specific implementation methods

The following embodiments may enable the technical personnel of the profession to understand the present invention more comprehensively, but do not limit the present invention to the scope of the embodiments described herein.

Example 1

The aluminium alloy for automotive parts of the present embodiment has the following weight components:

Silicon 0.8 copies;

Iron 0.1;

Magnesium 0.9;

Copper 0.11 copies;

0.2 phr of manganese;

Cadmium 0.01;

Zinc 0.2;

Titanium 0.1;

0.06 copies of nickel;

96.96 copies of aluminium.

Example 2

The aluminium alloy for automotive parts of the present embodiment has the following weight components:

Silicon 1.0 copies;

Iron 0.3 copies;

Magnesium 1.1 portion;

Copper 0.13 copies;

0.3 manganese;

Cadmium 0.05;

Zinc 0.28;

Titanium 0.2;

0.08 copies of nickel;

97.63 copies of aluminium.

Example 3

The aluminium alloy for automotive parts of the present embodiment has the following weight components:

Silicon 0.85 copies;

Iron 0.15 copies;

Magnesium 0.95;

Copper 0.115 copies;

Manganese 0.24;

Cadmium 0.02;

Zinc 0.23;

Titanium 0.14;

0.065 copies of nickel;

97.11 copies of aluminium.

Example 4

The aluminium alloy for automotive parts of the present embodiment has the following weight components:

Silicon 0.95 copies;

Iron 0.25 copies;

Magnesium 1.05 copies;

Copper 0.125 copies;

Manganese 0.26;

Cadmium 0.04;

Zinc 0.25;

Titanium 0.16;

0.075 copies of nickel;

97.37 copies of aluminium.

Example 5

The aluminium alloy for automotive parts of the present embodiment has the following weight components:

Silicon 0.9 copies;

Iron 0.2 parts;

Magnesium 1.0 parts;

Copper 0.12 copies;

Manganese 0.25;

Cadmium 0.03;

Zinc 0.24;

Titanium 0.15;

0.07 copies of nickel;

97.34 copies of aluminium.

The basic principles, main features and advantages of the present invention are shown and described above. Technicians in the industry should understand that the invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and instructions only describe the principles of the invention. Without departing from the spirit and scope of the invention, the invention will also have various changes and improvements, which fall within the scope of the invention requiring protection. The scope of protection required by the invention is defined by the attached claim form and its equivalents.