WIN GREEN METALS
Green technology revolution needs a green metals revolution!Metals may have to go the same way. Indeed, it’s already starting to happen.Metals are recyclable, almost infinitely so, and are already some of the most recycled products. Lead-acid battery recycling rates in both Europe and the United States, for example, are close to 100%.
The aluminum market is rapidly evolving to a two-tier structure of “green” (low-carbon) metal and “black” (high-carbon) metal, partly because Western producers have discerned a way to differentiate their product from Chinese aluminum, much of which is made using coal power.
It is important because of many reasons:-
Aluminium alloys are known for their corrosion resistance, ductility, conductivity, appearance, strength, and most of all their light weight. In general, aluminum alloys are 1/3 the weight of carbon and stainless steels. So, when comparing the weight of aluminum to steel, it’s easy to calculate – you can just divide by three!
When discussing aluminum’s durability, it’s much stronger than most people realize. This is because when looked at pound for pound, aluminum has an extremely high strength-to-weight ratio. When engineers are measuring and testing the strength and durability of a metal, they look at several distinct mechanical properties. Each of these ways of analyzing strength can be measured separately.
It is the second most malleable metal and the sixth most ductile. It is often used as an alloy because aluminium itself is not particularly strong. Alloys with copper, manganese, magnesium and silicon are lightweight but strong. They are very important in the construction of aeroplanes and other forms of transport.Aluminum is non-toxic and is used to make woks, pressure cookers and many other cooking utensils without fear.
Aluminum is an excellent heat and electricity conductor and in relation to its weight is almost twice as good a conductor as copper. This has made aluminum the first choice for major power transmission lines. It is also a superb heat sink for many applications that require heat to be drained away rapidly, such as in computer motherboards and LED lights.
RESISTANCE FROM CORROSION
Aluminum naturally generates a protective thin oxide coating which keeps the metal from making further contact with the environment. It is particularly useful for applications where it is exposed to corroding agents, as in kitchen cabinets and in vehicles. In general, aluminum alloys are less corrosion-resistant than pure aluminum, except for marine magnesium-aluminum alloys.
Aluminum is 100% recyclable and recycled aluminum is identical to the virgin product. This makes it a much more cost-effective source material for production runs. The re-melting of aluminum requires little energy: only about 5% of the energy required to produce the primary metal initially is needed in the recycling process.
Why it is called green metal?
Aluminium is called the GREEN METAL because it is a environmental friendly metal
Recycling this metal saves 95% of the enegry required to produce aluminium from raw materials
This plays an important role in the ecology
HOW IS ALUMINIUM RECYCLED?
- The consumer throws aluminium cans and foil into a recycle bin.
- The aluminium is then collected and taken to a treatment plant.
- In the treatment plant the aluminium is sorted and cleaned ready for reprocessing.
- It then goes through a re-melt process and turns into molten aluminium, this removes the coatings and inks that may be present on the aluminium.
- The aluminium is then made into large blocks called ingots. Each ingot contains about 1.6 million drinks cans.
- The ingots are sent to mills where they are rolled out, this gives the aluminium greater flexibility and strength.
- This is then made into aluminium products such as cans, chocolate wrapping and ready meal packaging.
- In as little as 6 weeks, the recycled aluminium products are then sent back to the shops ready to be used again.
Nurturing the global metals scrap industry has an important role to play on the road to a more sustainable future.
“Progress is impossible without change, and those who cannot change their minds cannot change anything.” …
Why should you recycle scrap metal?
In this day and age, no one is going to argue with the fact that recycling is very important. However, it’s one thing to say you should recycle to protect the planet, but it’s much more important to be aware of what it is you’re saving it from. By finding the best methods of waste disposal, you can make a positive change. It concerns all types of materials, but especially metals. Metals can be recycled over and over again without losing their quality, which makes them very valuable. Recycling metal offers many financial and environmental benefits, as it’s an important factor
Saving natural resources
Avoiding toxic leaks
Lowering CO2 emissions
Saving natural habitats
There is as yet no market premium for “green” aluminum, but it is becoming an ever more important metric for environmentally-aware buyers.