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The heart of new energy vehicles, how to achieve lightweight three power?

Magnesium alloys are well-known for being the lightest structural alloys [1].

They are made of magnesium, the lightest structural metal, mixed with other metal elements to improve the physical properties. These elements include manganese, aluminium, zinc, silicon, copper, zirconium, and rare-earth metals [2].

Some of magnesium’s favourable properties include low specific gravity and a high strength-to-weight ratio. As a result, the material lends itself to a range of automotive, aerospace, industrial, electronic, biomedical, and commercial applications

Properties and advantages Applications

Magnesium alloys cover a wide array of applications, from automotive and aerospace applications to electronic and biomedical uses.

Structural applications Automotive, aerospace, industrial, and commercial applications are examples of structural applications. The advantage of magnesium alloys to be used in such applications is their light weight, high strength-to-weight ratio, high stiffness-to-weight ratio, castability, machinability, and great damping [4].

Automotive: support brackets for brakes and clutch, housing for transmission

Aerospace: landing wheels, helicopter rotor fittings, gearbox housings

Industrial: high-speed operating machinery, such as textile machines

Commercial: luggage, hand tools, computer housings, ladders

Electronic applications Electronic applications include electronic packaging, hard drive arms, cell phone and portable media device housings. Magnesium alloys are being used instead of plastics due to their light weight, strength and durability. They also are relatively better for heat dissipation and protection against electromagnetic and radio frequency interference [5].

Medical applications Portable medical equipment and wheelchairs that require light material make good use of magnesium alloys. Also, cardiovascular stents and orthopaedic devices are potential applications of some magnesium alloys due to magnesium’s biocompatibility and bioabsorbability [4].

The heart of new energy vehicles, how to achieve lightweight three power?

In recent years, the development of electric vehicles has become the trend of the development of the automobile industry, and more and more automobile enterprises have gradually put their research and development focus on electric vehicles (electric and hybrid). It has long been accepted that electric vehicles represent the future of the automotive industry.

And the achievement of an electric car, must be its three electric system. In many presentations, the three-electric system is described as the absolute core of electric vehicles. In fact, the three electric system is not only the absolute core of electric vehicles, but also the foundation of electric vehicles. According to the industry authority, the cost of the three electric system occupies more than 75% of the total cost of the whole pure electric vehicle, and more than 90% of the pure electric vehicle parts failure, are also caused by the three electric system.

Three electric system is almost the whole of an electric car.

Three electric system is the core technology of pure electric vehicle, which is different from traditional fuel car. It is the power system born as the replacement of fuel car engine system. The research and development of three electric system needs to do a lot of time-consuming and laborious basic work.

Most of the casting parts of the powertrain, such as the engine cylinder block, cylinder head, transmission box, oil pan, etc., are made of aluminum alloy. Currently, magnesium alloy transmissions are already available in pickup trucks and SUVs made in North America, and magnesium alloy manual transmissions from Volkswagen and Audi are also mass-produced in Europe and China. Currently, the Automotive Materials Alliance Magnesium Powertrain Casting Program (MPCC) aims to enable magnesium alloys to completely replace the major aluminum components in V block en-gine engines. In this project, the cylinder block was successfully reduced in weight by 25% (29% of the total aluminum casting was replaced with magnesium casting). Progress has been made in dynamometer tests on magnesium-reinforced engine prototypes, which means more magnesium alloys will be used in power systems in the future.

At present, Taishan Zhongmei has reach three – control enclosure development capacity.

Automobile controller housing

material：镁合金 AM60B

size：74*202*172mm

weight：2.1Kg

machine：800T cold chamber die casting machine

Magnesium Alloy Die Casting Auto Parts Transfer Case

Advantage of magnesium alloy die castings:

Ultralight , 30% lighter than Aluminium die casting products
Improved fuel efficiency, increase loading capacity and mileage
Good Great damping performance, can absorb the vibration of impact greatly
Higher production efficiencey, lower cost
All in one piece, no welding joint, improve overall rigidity
Eco-friendly,100% recyclable

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Taishan Zhongmei Technology Co., Ltd. is a Chinese company specializing in the research, development and application of magnesium alloy and aluminum alloy materials and products, providing precision parts of magnesium alloy/aluminum alloy high-pressure casting, thiximolding die-casting and liquid die forging for automotive customers. It covers an area of 120,000 kilosquare, with a total investment of 0.2 billion dollars and 400 employees. It is a new material and new energy enterprise. We had pass high-tech enterprise IATF16949:2016 Automotive management system certificate.

China’s abundant magnesium reserves account for more than 70% of the world’s total magnesium resources, including 27% magnesite, ranking first in the world. The development of magnesium alloy industry in China is in line with China’s resource strategy, the world’s demand for magnesium alloy, more competitive prices, and the industrial advantages of supporting facilities for magnesium alloy production. China Magnesium Company is located in Taishan, Guangdong Province, China, near Shenzhen port and Hong Kong, with lower transportation cost and logistics efficiency.

The magnesium ingot used by Zhongmei Technology Co., Ltd. is of high purity and complies with the standard Chinese magnesium alloy. In the process of production, the nozzle and waste are not reused to improve the purity of products, so that the performance of die-casting products is more stable.

To collaborate or know more, send an email to: corrine@zhongmei-tech.com. website is https://www.zhongmei-tech.com/

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