HNCY with a registered capital of 70 million yuan and more than 500 employees, it is a high-tech enterprise focusing on the development and production of high-performance magnetic and electrical functional materials and devices.
The company’s main products are:
SMD / SMT high-performance soft magnetic magnetic material, Terbene-D (TbDyFe) alloy rare earth giant magnetostrictive material Terfenol-D
The company’s products are widely used in new-generation information technology, industrial intelligence, automotive electronics, aerospace, military, 5G, artificial intelligence and other fields. It is one of the strategic basic materials for integrated circuit design. The company has a team of experts specializing in the design of materials, processes, devices and integrated circuits, and undertakes provincial and ministerial key R & D projects and international cooperation. Relying on its own unique, innovative and leading design concepts, with a strong R & D capability and scientific distribution system, the company’s products have entered German automotive electronics, Hitachi Industries, Samsung, LG systems, domestic Huawei, BYD, Xiaomi and other design fields , Serving many Fortune 500 companies!
TbDyFe alloy Terfenol-D rare earth giant magnetostrictive material
Titanium iron (TbDyFe) alloy is a new type of rare earth giant magnetostrictive material. Its room-temperature magnetostrictive strain (magnetostrictive coefficient) is larger than any field-strictive material in the past. It has tens of times greater strain than conventional magnetostrictive alloys such as nickel-cobalt (Ni-Co), and is more than five times larger than electrostrictive materials. It can efficiently convert electrical energy into mechanical energy and transmit huge amounts of energy. In a very short time of 10-5 to 10-6 seconds, a lag-free response that matches the static and dynamic characteristics of the magnetic field is accurately and stably formed. Its stable response and agile speed make the reaction lag time of the mechanical system of samarium ferroalloy as the driving element significantly reduced. This is also an important characteristic of the samarium ferroalloy component to rapidly generate the expansion and strain response in the alternating magnetic field, which makes it an industrial technology In the development, it has been widely used as actuator, control element and sensitive element.
One of the application results of rare earth giant magnetostrictive materials in the field of acoustics is the flat speaker technology. Flat panel technology has excellent frequency response characteristics and sound quality. It can produce a 360-degree sound field that crosses almost any plane, opening up the possibility of designing various new speakers.
Using rare-earth giant magnetostrictive material elements for micro-displacement mechanisms can control complex displacement movements quickly, accurately, and stably. Accurate joint control in robots; precise displacement control of machine tool components; servo tool post control of forming and processing machine tools; compensation control of mechanism transmission errors and tool wear; powerful contact control of switches and relays in power distribution systems; laser mirrors and telescopes In the control of fine focusing of electron microscope, it can significantly optimize the structure, improve performance, improve efficiency, and reduce losses.
Random control in linear motors, servo valves, powerful hydraulic pumps, precision infusion pumps (medical), high-speed valves, fuel injection systems (automobile engines) and other devices driven by rare-earth giant magnetostrictive materials, effectively improving the degree of automation, Simplify the hydraulic control system to achieve high efficiency, energy saving, safety and reliability.
Utilizing the real-time response characteristics of rhenium alloy elements, the vibration of the mechanical system can be effectively controlled to achieve the purpose of damping and reducing noise. On the contrary, the controllable characteristics of rare earth giant magnetostrictive material components are used to improve the vibration process (polishing, vibration cutting), and improve product quality and production efficiency.
The above is an example of the application of some rare earth giant magnetostrictive materials, but it is by no means the apex of the application. More applications of rare-earth giant magnetostrictive materials are being developed, and it is believed that it will have broad application prospects and bring profound influence in the development of new products in various industries.
TbDyFe alloy specifications: cylindrical, diameter 2.0 ~ 50mm, length ≤200mm
Supply capacity:
Long-term stable batch production capacity, monthly output can reach 80 ~ 120kg
Performance and advantages: stable performance, high magnetostrictive conversion efficiency, large expansion and output energy, instant response without lag, high intensity and not easy to break, wide range and beautiful tone when making vibration sound.
Product packaging:
vacuum sealed packaging
Application:
Making new-type vibration sound, micro-displacement controller, ultrasonic transmitting device, etc.
Spot specifications:
Diameter 30mm
The giant magnetostrictive material represented by Tb-Dy-Fe is a new type of functional material gradually developed from the 1970s after piezoelectric ceramics and magnetostrictive materials. It has the conversion function of electromagnetic energy and mechanical energy. It is a heavy energy and information conversion energy material, especially an important material for sonar transducers. Because of its excellent magnetostrictive properties, super magnetostrictive materials have aroused strong interest as soon as they appeared, and they are playing an increasingly important role in the national economy and industrial production. Giant magnetostrictive material Tb-Dy-Fe. Has a series of excellent properties: large magnetostrictive strain, magnetostrictive strain is 50 times larger than pure Ni, 5-25 times larger than PZT materials: the thrust generated by magnetostrictive strain is large, the diameter of about 10mm Tb- Dy-Fe rods generate about 200 kg of thrust during magnetostriction: high energy density, its energy density is 400 to 800 times larger than Ni-based alloys, and 14 to 30 times larger than PZT; energy conversion efficiency (Combined coefficient) is as high as 70%, while Ni-based alloys are only 16%. PZT material is only 40-60%: one H curve is good, the elastic modulus changes with the magnetic field and can be adjusted; the response speed is fast, reaching 10-6 seconds; the frequency characteristics are good, can be at low frequencies (tens to 1000) Hertz), working frequency bandwidth; can work in low fields (tens to hundreds of Oersted); low working voltage, can work in a few volts to 100 volts, can be driven by batteries, and PZT electrodeization If the voltage is above 2kV / mm, there is a risk of electrical breakdown; good stability, high reliability, its magnetostrictive performance does not change with time, no fatigue, no overheating failure. In addition, compared with PZT ceramics, giant magnetostrictive materials have an irreplaceable position in low-field high-power sensors. Hydromagnetic transducer technology of sonar in sonar, electroacoustic transducer technology, marine detection and development technology, micro-displacement drive, vibration reduction and anti-vibration, noise reduction and anti-noise system, intelligent wing, High-tech fields such as robotics, automation technology, fuel injection technology, valves, pumps, and wave oil extraction have broad application prospects.
Low-frequency sound source and receiving system
Acoustic signal is the main medium for underwater communication detection and reconnaissance and remote control. The core components of sonar devices that transmit and receive sound waves are generally made of piezoelectric ceramics or magnetostrictive materials. Low frequency and high power are the future development direction of sonar and underwater acoustic countermeasures transmitting underwater acoustic transducers. The key material for manufacturing low frequency and high power underwater acoustic emission transducers is rare earth giant magnetostrictive material. The development of rare earth giant magnetostrictive materials will play a key role in the development of sonar technology, underwater acoustic countermeasure technology, marine development and detection technology. <112> Terfenol-D and <110> Tb-Dy-Fe of axially oriented giant magnetostrictive materials have the following advantages compared to piezoelectric ceramic PZT: high output power, high operating temperature, low Voltage drive, small hysteresis, no aging, low response frequency, low attenuation of low frequency signals under water, long transmission distance, etc. Therefore, it is possible for the giant magnetostrictive material to be applied first in the sonar system.
In addition, the ultrasonic generator made of giant magnetostrictive material has good application prospects in fishing, seafloor mapping, non-destructive testing of buildings and materials, and combines the excellent low-frequency acoustic characteristics of Terfenol-D and the piezoelectric ceramics. The combination of high-frequency characteristics can produce a better performance acoustic vibration sensor with wide frequency response and good unidirectionality. Utilizing the property that the elastic modulus of the magnetostrictive material changes with the magnetic field, it can be made into a delay line whose frequency can be adjusted with the magnetic field. Components such as resonators and filters are used in sonar or other systems.
Ultrasound technology and electro-acoustic transduction technology
Rare earth giant magnetostrictive materials also have broad application prospects in audio and ultrasonic technology. For example, this material can be used to make ultra-high-power ultrasonic transducers. In the past, ultrasonic transducers were mainly made of piezoelectric ceramic (PZT) materials. It can only produce low-power (≤ 2.0kW) ultrasonic transducers. Rare-earth giant magnetostrictive materials have been used abroad to produce ultra-high-power (6-25kW) ultrasonic transducers. Ultra-high-power ultrasonic technology can generate new physical effects and new uses that cannot be produced by low-power ultrasonic technology. For example, it can desulfurize and regenerate waste tires, increase crop yields significantly, and accelerate chemical reactions in chemical processes. It has significant economic benefits. , Social and environmental benefits; electro-acoustic transducers made from this material can be used for fluctuating oil production, can increase the oil production of oil wells by 20% to 100%, and can promote the development of the petroleum industry.
High energy fast miniature displacement actuator
Giant magnetostrictive materials not only have large magnetostrictive strain, but also have large output stress and fast response speed, so they can be used in the design of high-energy fast micromachines. Micro-displacement actuators made of rare earth giant magnetostrictive materials can be used in robotics, automatic Control, ultra-precision machining, infrared, electron beam, laser beam scanning control, camera shutter, linear motor, intelligent wing, fuel injection system, micro pump, valve, sensor, etc.
Other sensor applications
Utilizing the characteristics of large magnetostrictive strain and fast response speed of giant magnetostrictive materials, it can be used to measure any physical quantity related to magnetic field. In addition, the thin (flat) horn made of this material has large vibration force, good sound quality and high fidelity, which can make floor, wall, tabletop, glass windows vibrate and pronounce, and can be used for underwater music and underwater ballet dance. Speakers, etc. This material can be used to manufacture noise and noise control, anti-vibration and vibration control systems.