Amorphous metals, also known as Metglas, possess a unique atomic structure that sets them apart from traditional crystalline metals. In the realm of electric motors and transformers, their applications have been transformative. Let’s delve into the industries and applications where amorphous metal motors are making a significant impact.
Properties of Amorphous Metals
Amorphous metals exhibit exceptional properties that make them ideal for motor applications. Their unique atomic arrangement results in high strength, hardness, and remarkable magnetic properties. Additionally, these metals offer excellent corrosion resistance and electrical conductivity.
Amorphous metals’ soft magnetic properties and high elastic limit contribute to their effectiveness in minimizing energy losses and withstanding mechanical stress. This combination of characteristics marks amorphous metals as valuable materials, driving innovation in industries seeking advanced and reliable solutions.
Industries Benefiting from Amorphous Metals Motors
In the automotive sector, amorphous metals find applications in electric and hybrid vehicles. The lightweight and high magnetic permeability of these metals contributes to enhanced motor efficiency.
New energy vehicles have high requirements on the size, weight, and power density of motors, so most motors are designed to have a control frequency of 200-1600HZ.
Current motors designed based on silicon steel generally generate serious heat, which puts huge pressure on the cooling system and reduces the operational reliability of the entire power/generation system.
The low iron loss of the new amorphous soft magnetic materials under high-frequency control (equivalent to 1/8-1/10 of silicon steel) can significantly reduce the temperature rise of the motor.
At the same time, amorphous motors have the advantages of small size, lightweight, high efficiency, high power density, low hysteresis, and low noise. They are currently one of the excellent solutions to solve the temperature rise of new energy vehicle motors.
The optimized design of the new amorphous motor will also optimize the drive/power generation system to a certain extent, improving space utilization and overall machine operating efficiency.
Power Tools and Appliances:
Amorphous magnetic metals are gaining traction in the manufacturing of household appliances and consumer electronics. Their magnetic properties make them suitable for various applications, ensuring efficient operation in devices like refrigerators and power tools.
The application of variable frequency air conditioners puts new requirements on compressor motors, especially volume and efficiency. The performance of silicon steel motors is not satisfactory, especially the low efficiency in the high-frequency band.
The new amorphous alloy material can significantly reduce the core loss of the motor, and the optimized amorphous compressor for inverter air conditioners can perfectly solve the problem of volume and efficiency.
In the realm of industrial machinery, particularly in robotics and manufacturing equipment, amorphous metal motors play a pivotal role. Amorphous materials are used instead of silicon steel as the stator core part of the motor.
The amorphous material still has the characteristics of high saturation magnetic induction, low loss, and high magnetic density at high frequencies to increase the number of stator poles of the permanent magnet motor.
This results in smaller size, energy consumption, higher efficiency, and torque at the same power and speed making them an ideal choice for demanding industrial applications.
Medical And Military:
Medical and military motors have one or more special requirements of high speed, low-temperature rise, low noise, small size, high efficiency, or high frequency.
The high saturation magnetic induction intensity, high magnetic permeability, and low iron loss of new amorphous materials at high frequencies can further improve the efficiency and power density of micro motors, reduce temperature rise, and completely replace some traditional silicon steel motors in medical/military applications.
It can be applied in equipment and facilities exert better performance, and can even meet special performance requirements that could not be achieved in the past.
The renewable energy sector, including wind turbines and solar power systems, benefits from the use of amorphous metal motors.
The high-efficiency and energy-saving high-frequency generator uses new amorphous materials to replace silicon steel sheets. Its iron loss at high frequency is 1/8-1/10 of that of silicon steel sheets. The temperature rise of the motor is reduced, and the efficiency can be increased by 3%- 10%.
It has the characteristics of small size, high efficiency, and high power density. It is especially suitable for medium and high-frequency DC power generation systems and mobile power generation systems.
They can effectively reduce energy consumption, improve the utilization efficiency of fuel kinetic energy, and extend sustainable working time.
In the aerospace industry, amorphous metal motors are making significant strides due to their unique properties. Their lightweight nature, high strength, and corrosion resistance contribute to improved efficiency in aerospace applications.
Amorphous metals’ magnetic characteristics enhance the performance of motors used in satellite systems, propulsion systems, and other aerospace components. The reduced weight and increased durability of these motors play a crucial role in optimizing fuel efficiency and overall performance in aerospace vehicles.
In the rapidly growing field of UAVs, amorphous metal motor stator and rotor lamination contribute to the development of efficient and agile unmanned aerial systems. Their compact size, high torque, and energy-efficient performance make them integral components in UAV propulsion and control systems.
In conclusion, the industries and applications of amorphous metal motors represent a paradigm shift in motor technology. The remarkable properties of these metallic alloys contribute to energy efficiency, reduced emissions, and enhanced durability.
As industries continue to embrace innovation, the integration of amorphous metals in motors is set to play a pivotal role in shaping the future of electric propulsion.
How are amorphous metals produced?
Amorphous metals are typically produced by rapidly cooling molten metal. This rapid cooling prevents the atoms from arranging themselves into a crystalline structure, resulting in an amorphous structure.
There are also many amorphous structure metals with unique magnetic properties, but the commercial focus is on iron borosilicate (FeBSi), the most commonly used formulations are 85% to 95% iron, 5% to 5% boron, and 5% to 10%.
How do amorphous alloy motors differ from traditional motors?
Amorphous iron cores differ from traditional electrical steel motor cores in their atomic structure. While traditional motors have a crystalline structure, amorphous alloy motors possess a non-crystalline, disordered arrangement.
This unique structure contributes to their exceptional properties, including high strength, magnetic efficiency, and improved performance, setting them apart in terms of efficiency and versatility.
What are the advantages and disadvantages of amorphous metal alloy motor cores?
Amorphous motor cores offer high efficiency, reduced energy losses, and enhanced magnetic properties. They contribute to energy savings, improved performance, and durability in various applications.
The production of amorphous alloys can be costlier, and challenges in mass production exist. The extreme thinness (25 microns) and high hardness of amorphous metals make them difficult to cut, stamp, and stack process into traditional motor structures. However, ongoing research aims to address these concerns for broader adoption in industries.
Do amorphous alloy motors cost more than traditional motors?
Initially, amorphous alloy motors may have a higher upfront cost due to the specialized materials used. However, the long-term energy savings often outweigh the initial investment.
What considerations should be taken into account when selecting an amorphous alloy motor?
Factors such as required power output, application specifics, and budget considerations should be taken into account. Consulting with our motor specialists can help determine the optimal choice for a given application.