Aluminum alloy and aluminum alloy welding wire uses

Because the specific strength of aluminum alloy (the ratio of strength to specific gravity) is close to or exceeds that of high-quality steel, or even better than many alloy steels, and because of its good plasticity, it can be processed into various profiles and has excellent electrical conductivity, thermal conductivity and resistance. It is corrosive and is widely used in industrial fields such as automobiles, construction, and civil applications. Its usage is second only to steel. The widespread use of aluminum alloys has promoted the rapid development of the aluminum welding wire market.

1. Construction industry:

The largest area of ​​aluminum consumption in China is still the construction field. The application of aluminum in the construction field has a solid foundation and broad development space: vigorously promote the use of aluminum instead of steel, aluminum-section wood and green buildings, and promote the upgrading and transformation of aluminum alloy applications in the construction field.

It is estimated that in the next 25 to 30 years, civil construction aluminum profiles will still have a lot of room for development in our country, with an estimated annual growth rate of 8%-10%; while abroad, it has been basically saturated, with an annual growth rate of only 2%-3%. .

2. Automobile manufacturing:

From the perspective of comprehensive performance such as high speed, comfort, beauty, durability, lightweight, energy saving, environmental protection, and reduction of overall costs, aluminum alloy is undoubtedly the most modern and lightweight material for the automotive industry. Many countries in the world are committed to using aluminum for automobiles. Alloy research. For every 100kg reduction in vehicle weight, fuel consumption can be reduced by 0.7L/km. Therefore, replacing steel materials with aluminum alloys to minimize the weight of cars has become a current research hotspot.

From the advent of the first all-aluminum body Audi A8, to Jaguar's Jaguar XJ, to the launch of the new Land Rover Evoque Range Rover in 2012, all-aluminum body processing technology and technology are continuing to mature.

In the past ten years, among the various varieties of aluminum alloy materials used in automobiles, the growth of processed materials has been the most significant, reaching 4 times (including 4.6 times for strips and 4 times for extruded materials). Forgings have grown even faster, with an increase of 15 times in the past five years.

3. Civil use:

In addition, aluminum alloys are also widely used in machinery manufacturing, transportation machinery, power machinery and the aviation industry. Aircraft fuselages, skins, compressors, etc. are often made of aluminum alloys to reduce their own weight.

With the rapid development of science, technology and industrial economy in recent years, the demand for aluminum alloy welded structural parts is increasing day by day, which has led to in-depth research on the weldability of aluminum alloys.