The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Tourists and business trips have plummeted. On the booking website, there are a large number of air tickets for local routes with a price reduction of nearly 90% compared with the original price and only tens of yuan for a one-way trip.
In February, China's aviation industry recorded its largest single-month loss of 24.59 billion yuan, of which airlines lost 20.96 billion yuan.
Data from the Civil Aviation Administration of China showed that in February, the number of passengers traveling by air fell 84.5% year-on-year to 8.34 million.
The stagnation of the Asian aviation industry has brought volatility to Al-Si alloy.
What is Aluminium-Silicon Alloy?
Silicon-aluminum alloy is a binary alloy composed of silicon and aluminum, which can maintain the excellent properties of silicon and aluminum respectively.
Silicon is good in metal alloys used for casting. Because it increases the fluidity of the melt, reduces the melting temperature, reduces the shrinkage associated with solidification, and is very cheap as a raw material. Silicon also has a low density (2.34g/cm3), which may be an advantage in reducing the total weight of casting parts. The solubility of silicon in aluminum is very low; therefore, it precipitates in the form of almost pure silicon, which is very hard, thus improving wear resistance. The content of silicon and aluminum is quite rich, and the preparation technology of silicon powder is mature and the cost is low; in addition, this material has no pollution to the environment and is harmless to the human body.
The density of Si-Al alloy is between 2.4g/cm3 and 2.7g/cm3, and the coefficient of thermal expansion (CTE) is between 7-20ppm/℃. The density and thermal expansion coefficient of Si-Al alloy decrease significantly with the increase of silicon content. At the same time, Si-Al alloy also has excellent properties such as good thermal conductivity, high specific strength and stiffness, good coating with gold, silver, copper and nickel, weldable with substrate, easy precision machining and so on.
Silicon-aluminum alloy is a promising electronic packaging material, especially in high-tech fields such as aerospace, space technology and portable electronic devices.
What Kinds of Silicon-Aluminum Alloys are Available?
The important silicon-aluminum alloy in industry can be divided into four categories:
Hypoeutectic silicon aluminum alloy. The silicon content is between 9% and 12%.
Eutectic silicon aluminum alloy. The silicon content is 11% to 13%.
Hypereutectic silicon aluminum alloy. The silicon content is 15% to 20%.
High silicon aluminum alloy. The content of silicon is more than 22%, mainly 25-70%, up to 80%.
What is Aluminium-Silicon Alloy Used For?
High silicon-aluminum alloy material has excellent tribological properties and can be used as an advanced lightweight wear-resistant material for all kinds of transportation tools, power machinery, machine tools and special fasteners.
High silicon-aluminum alloy is widely used as cylinder liner, piston, rotor and brake disc of automobile engine because of its low specific gravity, light weight, good thermal conductivity, low thermal expansion coefficient, volume stability, wear resistance, corrosion resistance and so on.
It can also be used for high power integrated circuit packaging.
Heat sink parts.
Al-Si alloy is a strong compound deoxidizer. Replacing pure aluminum in the steelmaking process can improve the utilization rate of deoxidizer, purify molten steel and improve the quality of steel.
What Series is an Aluminium Silicon Alloy?
What is Silumin?
Silumin is a group of lightweight and high strength aluminum alloys based on aluminum-silicon system. Aluminum-silicon alloys usually contain 3% to 25% silicon. Casting is the main use of Al-Si alloys, but they can also be used in rapid solidification process and powder metallurgy. Alloys used in powder metallurgy rather than casting may contain more silicon, up to 50%. Silumin has high corrosion resistance, making it suitable for wet environments.
Si-Al Alloy Powder Price
The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.
If you are looking for the latest Si-Al alloy powder price, you can send us your inquiry for a quote. ([email protected])
Si-Al Alloy Powder Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality Si-Al alloy powder, please feel free to contact us and send an inquiry. ([email protected])
According to the bank of Spain's latest forecast data, the average inflation is expected to hit 7.6% in 2022, but the average wage increase for workers in this country is expected to be less than 4% in 2022.
If the Bank of Spain's forecast comes true, the gap between price and wage growth in Spain in a single year will be the largest since 1984.
Prices in Spain rose 9.8% year on year in March 2022 and average wages rose 2.4% year on year, with the Bank of Spain forecasting that the country's inflation rate will improve from July.
Recent changes in the international situation have had a big impact on commodity and energy prices. How the prices of the Al-Si alloy will develop in the future is still uncertain.
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