In recent years, with the continuous improvement of technology and machining level, many electronic products, molds and other products have gradually increased the requirements for raw materials. This quality is not limited to the requirements of hardness, light quality and moderate strength requirements. The ductility must be easy to process, good corrosion resistance, chemical resistance, good reflectivity to light, heat, and radio waves, but also non-toxic, non-magnetic, attractive, and low temperature resistant. There are many requirements for materials in various industries, and various processors generally reflect the advantages of aluminum alloy materials.
At present, the industry has an obvious feeling: in the near future, aluminum alloy will gradually replace other metal materials.
Aluminium resources are much richer than other metal resources such as copper. From the perspective of static reserves, copper and nickel can only be used for decades in the world at the current mining and utilization rate, and the existing reserves of bauxite can guarantee mining for hundreds of years. The long availability of aluminum resources compared to other metals provides a better condition for manufacturing to choose aluminum as a raw material.
Aluminum has good ductility, electrical conductivity, thermal conductivity, corrosion resistance, and nuclear radiation resistance. It also reflects ultraviolet light well, and is easy to process and mix with other metals to form alloy materials. These characteristics of aluminum are similar to those of copper, nickel, zinc, etc., so they can be substituted for these metals in many ways.
The price-performance ratio of aluminum has become more and more attractive to the industry under the current market price structure. The replaceability of aluminum to other metals may soon become a reality when the current price gap is still large, which will drive aluminum consumption. growth of.
The main manifestation of the replaceability of aluminum to other metals
Aluminum wires can replace copper wires. The disadvantage of aluminum conductors replacing copper conductors is that they are slightly inferior to copper in terms of conductivity and safety, so copper conductors have always played a leading role in the field of wires and cables. If the copper-aluminium spread remains at a normal level, the industrial side tends to use copper as a conductor. However, with the current LME copper-aluminum price difference of more than 1,200 US dollars per ton and the domestic copper-aluminium price difference of more than 12,000 yuan per ton, it is economically very profitable to replace copper wires with aluminum wires. In addition, the weight of aluminum is twice as light as that of copper. Even if the price of copper and aluminum is the same, aluminum by weight is still cheaper than copper.
Aluminum can replace nickel-plated stainless steel. Due to the sharp rise in the price of nickel, the price of steel has also increased significantly in the past two years, which has led to a sharp rise in the procurement cost of raw materials for manufacturers of household appliances, utensils, etc. using nickel-plated stainless steel as raw materials, and it is difficult to increase the price of finished products accordingly. This in turn forces manufacturers to look for alternative raw materials.
Although aluminum is not as smooth as nickel-plated stainless steel, it has better corrosion resistance and appearance than ordinary steel materials, and the price has a great advantage compared to other stainless steel alloys. The use of aluminum or aluminum alloy to replace or partially replace nickel-plated stainless steel The performance and appearance of the finished product are slightly insufficient, but it is economically very cost-effective and easier to be accepted by consumers.
Aluminum and aluminum alloys have small specific gravity and high strength, and can replace steel in some industrial sectors.
At present, the use of aluminum to replace other metal materials has become the first choice for lightweight automotive manufacturing today, coupled with the current low aluminum price, this trend is accelerating. At this stage, the main direction of the world’s automotive material technology development is lightweighting and environmental protection. Reducing the quality of automobiles is one of the most effective measures to reduce automobile emissions and improve fuel efficiency.
According to estimates, for every 10% reduction in the car’s own mass, fuel consumption can be reduced by 6% -8%. It is expected that in the next 10 years, the quality of cars will continue to decrease by 20%. The development and application of new lightweight materials will continue to be the hotspot of automotive materials, and aluminum and its alloys are currently one of the more ideal materials.
Aluminium’s replaceability to other metals will drive global aluminum consumption growth
According to estimates, only the replacement of copper conductors by aluminum conductors will increase aluminum consumption by more than 200,000 tons. And if the amount of aluminum used in each car is increased from the current 115 kg to 130 kg, tens of millions of new cars worldwide each year will increase aluminum consumption by more than one million tons. If we consider the alternatives of aluminum and aluminum alloys to other metals in building decoration, household appliances, utensils, stainless steel, etc., the increase in aluminum consumption worldwide will therefore be calculated in millions of tons.
It can be seen that aluminum and aluminum alloys will play an irreplaceable role in all walks of life in the future.