Advantages of Aluminium Alloy:
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1. The thermal conductivity, electrical conductivity and cutting performance of aluminum alloy are good;
2. The aluminum alloy wire shrinks less, so it has good filling performance;
3. The aluminum alloy has small density and high strength, and its ratio of tensile strength to density is 9-15. When working at high temperature or low temperature, it also maintains good mechanical properties;
4. Aluminum alloy has good corrosion resistance and oxidation resistance. Most aluminum alloys have good corrosion resistance in fresh water, sea water, concentrated nitric acid, nitric acid, gasoline and various organic substances.
Everything has two sides, aluminium alloy also has some disadvantages as follows.
Disadvantages of aluminium alloy:
1. Low hardness, and at the same time, wear resistance is also poor;
2. The volume shrinkage during solidification is relatively large, about 6.6%;
3. The coefficient of linear expansion is relatively high;
4. Easy to stick mold, need to strictly control the iron content in the range of 0.8% -0.9%;
5. The melting point is low and the use of high temperature is limited.
The advantages of Aluminum Automotive Parts over steel.
In recent decades, aluminum is used more and more in car manufacturing. It has started to replace steel as base metal for car frames and other parts. Aluminum is said to be stronger and less likely to be corroded than steel. It is also easier to form, that is why aluminum parts require less labor costs. However, while labor cost is low, aluminum as a material is also expensive. It is in fact much more expensive than steel.
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But the advantages of aluminum automotive parts over steel outweigh its disadvantages. More and more manufacturers are experimenting with relatively expensive aluminum because it is lighter than steel. It makes the car leaner and faster. It also helps achieve fuel efficiency standards – since lighter vehicle means less fuel used. So the expensive material makes up for the cheaper fuel consumption of the car in the long run.
There are several luxury models that are made with aluminum car frames. This is in fact a few times more expensive than steel cars but the user will be ensured that it would help save energy. Environmental advocates will love it more because it is almost a hundred percent recyclable – another standard that aluminum helps achieve.
Application of Aluminium Alloy:
Aluminum alloy can replace bronze as low- and medium-speed medium-temperature heavy-duty bearings, and the price is 50% lower than that of bronze bearings.
Aluminium alloy can also be produced by continuous casting or centrifugal casting for the manufacture of bushings, bearing and so on.
It can also be used to make molds, which are widely used in the production of bearings, various pipe joints, pulleys and various types of impact and wear castings.
At present, aluminum alloy die-casting technology has been widely used in various fields. Aluminum alloy die-casting products are mainly used in auto parts, electronic housings, communications, motors, aviation, ships, home appliances, furniture accessories, digital housings, handicrafts, Security products, LED lighting (shade) and some new energy industries, some high-performance, high-precision, high-toughness and high-quality aluminum alloy die-casting products are also used in large aircraft, ships and other industries with high requirements. The main use is on parts or casings of some instruments, as the aluminum alloy forming process has become the most widely used process.
The advantages of aluminum castings in the automotive industry are as follows:
1. Promote light weight, save energy and reduce consumption, and be environmentally friendly
2. Aluminum alloy parts can be recycled and reused, can save energy furtherly.
3. Increase corrosion resistance and extend service life
4. Helps to improve the safety and balance of driving
Aluminium is an extremely versatile metal with a number of advantages, it is recognised for being both lightweight and flexible. It can be cast, melted, formed, machined and extruded meaning that it can be manufactured into a variety of shapes and then subsequently fabricated to suit a whole variety of uses.
Due to its extreme versatility and strength, the use of Aluminium is becoming more popular, especially with the advantages it has to offer. Through the process of aluminium extrusion it can be supplied in ever more complex designs. This extrusion can be supplied in a variety of finishes including anodised, mill or painted and can then be further machined or fabricated.
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