Surface modification technology using megahertz ultrasound - relaxation and homogenization treatment of surface residual stress -

Technology for controlling low-frequency resonance phenomena and high-frequency nonlinear phenomena.

The Ultrasonic System Research Institute has developed ultrasonic oscillation control technology utilizing nonlinear vibration phenomena based on surface acoustic waves. By confirming the basic acoustic characteristics (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, jigs, objects, etc.), the desired ultrasonic propagation state can be achieved through oscillation control. By setting the oscillation conditions (waveform, output, control, etc.) with an original nonlinear resonant ultrasonic oscillation probe, we optimize high-frequency propagation states above 300 MHz through high sound pressure resonance phenomena and harmonic generation phenomena (nonlinear phenomena). This technology is an efficient method for utilizing low-output ultrasonic oscillation. The key point is the setting of various parameters utilizing the characteristics of a discrete function generator through digital control. By using the nonlinear resonant ultrasonic oscillation probe, the control range of sound pressure levels due to resonance phenomena is greatly expanded, which is significantly different from conventional sound pressure levels caused by resonance phenomena. Therefore, optimization of control settings based on sound pressure measurement analysis is necessary to avoid phenomena such as damage or destruction.

• Special Construction Method
• Non-destructive testing
• others

- Surface modification technology (stress relaxation and uniformity) through nonlinear oscillation control of original ultrasonic probes -

The Ultrasonic System Research Institute has made it possible to control the nonlinear propagation state of ultrasound by utilizing measurement, analysis, and control technologies related to the propagation state of ultrasound as the acoustic characteristics of the target object. As a result, we have developed and advanced technology to efficiently alleviate residual stress on the surface of components. This technology for alleviating surface residual stress improves fatigue strength against metal fatigue and achieves uniformity in various surface treatments. In particular, by considering the guided waves (surface elastic waves) of the target object in the setting and control of the ultrasonic propagation state, we have developed control methods and tools that realize effective dynamic changes in the target object as stimuli that include nonlinear phenomena. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This is a new surface treatment technology using ultrasound, which, including the general effects based on acoustic characteristics, can be utilized and developed as a distinctive inherent operational technology for the development of new materials, stirring, dispersion, cleaning, and chemical reaction experiments.

• Other analytical equipment

Surface treatment technology using a megahertz ultrasonic oscillation control probe -- Improvement treatment of metal fatigue strength (relaxation and uniformization of surface residual stress) --

The Ultrasonic System Research Institute has developed methods for measuring, analyzing, and evaluating surface residual stress by applying the following technologies: 1) Manufacturing technology for ultrasonic probes 2) Evaluation technology for ultrasonic propagation conditions 3) Surface inspection technology using ultrasound Based on numerous achievements, we believe that various applications are possible as ultrasonic utilization technology, and we are making related technologies publicly available. Specific examples: Surface treatment know-how: Standard settings Output: 13-15V Rectangular wave: Duty 47.1% Sweep range: 500kHz - 13MHz, 2 seconds Settings for low-intensity targets (or long processing times): Output: 1-3V Rectangular wave: Duty 47.1% Sweep range: 300kHz - 3MHz, 1 second (or 100kHz - 5MHz, 1 second) Note: The oscillation conditions can vary significantly due to the ultrasonic propagation characteristics of the target object and the oscillation characteristics of the function generator. Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in self-correlation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response) 4) Detection of interactions (analysis of power contribution rates)

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Ultrasonic cleaning system that achieves ultrasonic control tailored to the purpose.

This is an effective device using a dedicated ultrasonic tank (original manufacturing method). Due to the high efficiency of ultrasonic utilization, standard tanks lack sufficient strength and durability. Depending on the target and purpose, multiple ultrasonic waves and a degassing fine bubble generation liquid circulation device are controlled based on sound pressure measurement analysis for cleaning, stirring, and surface modification. We propose various combinations and usage (control) methods. The key point is to achieve an ultrasonic propagation state tailored to the target, focusing on the "dissolved oxygen concentration distribution" and "liquid circulation" within the dedicated tank. << Degassing Fine Bubble (Microbubble) Generation Liquid Circulation Device >> 1) By narrowing the suction side of the pump, cavitation is generated. 2) Cavitation causes bubbles of dissolved gases to form. The above describes the state of the degassing liquid circulation device. 3) As the concentration of dissolved gases decreases, the bubble size of dissolved gases due to cavitation becomes smaller. 4) Through appropriate liquid circulation, fine bubbles (microbubbles) smaller than 20μ are generated. The above describes the state of the degassing microbubble generation liquid circulation device.

• Other measuring instruments
• Scientific Calculation and Simulation Software
• others

Technology for optimizing the resonance and nonlinear phenomena of ultrasonic vibrations through megahertz oscillation control of an original ultrasonic oscillation control probe.

The Ultrasonic System Research Institute has developed a technology to control the nonlinear vibration phenomena of surface acoustic waves through ultrasonic oscillation control techniques. By confirming the basic acoustic characteristics of ultrasonic waves (response characteristics, propagation characteristics) for various targets (water tanks, transducers, probes, fixtures, objects, etc.), we realize ultrasonic propagation states tailored to specific applications through oscillation control. Using two or more types of nonlinear resonant ultrasonic oscillation control probes, we dynamically control high-frequency propagation states above 900 MHz through the setting of oscillation conditions for sweep oscillation and pulse oscillation (note), resulting in high sound pressure level resonance phenomena and the generation of harmonics (nonlinear phenomena of 10th order and above). Note: Precision cleaning examples Sweep oscillation: 700 kHz – 20 MHz, 15 W Pulse oscillation: 13 MHz, 8 W Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response) 4) Detection of interactions (analysis of power contribution rates) Note: "R" statistical processing language autcor: autocorrelation analysis function bispec: bispectrum analysis function

• Non-destructive testing
• Vibration and Sound Level Meter
• others

Improvement process for ultrasonic propagation efficiency due to harmonics above 200 MHz.

The Ultrasonic System Research Institute has made it possible to control the nonlinear propagation state of ultrasound by measuring, analyzing, and controlling the propagation state of ultrasound and applying it as the acoustic characteristics of the target object. As a result, we have developed a technology that efficiently alleviates the residual stress on the surface of components and homogenizes the entire surface. With this technology to alleviate surface residual stress, we have improved fatigue strength against metal fatigue and achieved uniformity in various surface treatments. In particular, by considering the guided waves (surface elastic waves) of the target object in the setting and control of the ultrasonic propagation state, we have developed control methods, tools, and systems that realize effective dynamic changes in the target object as a certain range of stimuli that include nonlinear phenomena. We have confirmed a wide range of effects on various surfaces of metal parts, plastic parts, and powder materials. This technology is offered as a consulting service.

• Non-destructive testing
• Scientific Calculation and Simulation Software
• others

A technology for alleviating and equalizing the surface residual stress of ultrasonic transducers using an ultrasonic and fine bubble generation liquid circulation system.

The Ultrasonic System Research Institute has published a technology that applies measurement, analysis, and control techniques related to the propagation state of ultrasound to relax the surface residual stress of ultrasonic transducers using an ultrasonic and fine bubble generation liquid circulation system. This technology for relaxing surface residual stress enables the improvement of fatigue strength against metal fatigue. In particular, by considering the guided waves (surface elastic waves) of the target object in the propagation state of ultrasound, we have developed a method to achieve effective ultrasonic irradiation conditions through the setting, tooling, and control. We have confirmed a wide range of effects on various types of metal parts, resin parts, and powder materials. This technology will be offered as a consulting service. This is a new surface treatment technology using ultrasound, which, including the general effects based on acoustic properties, can be utilized and developed as a distinctive operational technology for the development of new materials, stirring, dispersion, cleaning, and chemical reaction experiments.

• Special Construction Method
• Other measuring instruments
• others

Dynamic control technology for ultrasonic cleaning machines.

The Ultrasonic System Research Institute has developed ultrasonic cleaning technology utilizing the "Constructal Law" related to flow and shape. <References> 1) On Vibration From the Royal Institution's 133rd lecture "Vibration" I intend to describe almost all of the important fields of mechanical engineering here. [Author] Richard B. Bishop [Translator] Hidetaro Nakayama, Kodansha (1981, B-471) 2) Flow and Shape The evolution of all shapes is governed by the "Constructal Law," which aims to improve flow! [Authors] Adrian Bejan, J. Peder Zane [Translator] Hiroyuki Shibata, [Commentator] Shigeo Kimura, Kinokuniya (2013) 3) How Cybernetics Was Born [Author] Norbert Wiener [Translator] Yasuo Shizume, Misuzu Shobo (1956) Using the above as references and hints, we have organized the technology for measuring and utilizing "nonlinear effects" in ultrasonic propagation phenomena according to the "Constructal Law," which aims to improve flow, culminating in ultrasonic cleaning technology.

• pump
• Drainage and ventilation equipment
• others

Ultrasonic plating treatment technology using fine bubbles and megahertz ultrasonic waves.

The Ultrasonic System Research Institute has been developing ultrasonic plating treatment technology utilizing fine bubbles and megahertz ultrasound in collaboration with Japan Barrel Industry Co., Ltd. since 2015. Note: As of August 2024, it is continuously evolving based on good results into various application technologies. 1) Cleaning, processing, welding, plating... surface treatment... 2) Chemical reactions, liquid homogenization, stirring... 3) Inspection, evaluation... 4) Optimization control of ultrasound and fine bubbles tailored to specific purposes. Currently, in collaboration with Japan Barrel Industry Co., Ltd., we are developing application technologies utilizing ultrasound and fine bubbles for iron plating treatment (iron powder, amorphous, megahertz ultrasound...). If you are interested, please contact us via email. Ultrasonic propagation characteristics: 1) Detection of vibration modes (changes in autocorrelation) 2) Detection of nonlinear phenomena (changes in bispectrum) 3) Detection of response characteristics (analysis of impulse response characteristics) 4) Detection of interactions (analysis of power contribution rates)

• Non-destructive testing
• Other measuring instruments
• others

Ultrasonic system combining "Ultrasonic Tester NA (10 MHz)" and "Ultrasonic Oscillator (20 MHz)"

An ultrasonic system that allows for easy measurement analysis and oscillation control. The Ultrasonic System Research Institute is publicly conducting experiments using a system that combines the "Ultrasonic Tester NA (recommended type)," which allows for easy measurement analysis of ultrasonic waves, and the "Ultrasonic Oscillation System (20 MHz)," which enables easy oscillation control of ultrasonic waves. Ultrasonic Probe: Overview Specifications - Measurement Range: 0.01 Hz to 200 MHz - Oscillation Range: 0.5 kHz to 25 MHz - Propagation Range: 0.5 kHz to over 900 MHz (confirmed and evaluated through analysis) - Materials: Stainless steel, LCP resin, silicone, Teflon, glass, etc. - Oscillation Equipment Example: Function Generator Note: Ultrasonic Propagation Characteristics 1) Detection of Vibration Modes (Changes in Autocorrelation) 2) Detection of Nonlinear Phenomena (Changes in Bispectrum) 3) Detection of Response Characteristics (Analysis of Impulse Response Characteristics) 4) Detection of Interactions (Analysis of Power Contribution Rates) Note: "R" Free Statistical Processing Language and Environment - autocor: Autocorrelation Analysis Function - bispec: Bispectrum Analysis Function - mulmar: Impulse Response Analysis Function - mulnos: Power Contribution Rate Analysis Function

• Water Treatment
• Other analytical equipment
• others

We have introduced our commercial aroma diffuser "Majesta Fragrance" at a karaoke bar located in the city. The model we installed is [MF-02S]. From the moment customers open the door, a gentle fragrance spreads throughout the store, enhancing the atmosphere. We hope to create a memorable store that customers will want to visit again through the use of fragrance. Majesta Fragrance is available for a free trial installation exclusively in the Kanto area. If you are interested in our fragrance services, please feel free to contact us.

We have introduced our Majesta Fragrance in the restrooms of a company located in the city. The model we implemented is the compact-sized MFmini. By adding fragrance to the clean space, we have created an environment where users can spend their time more comfortably. The restroom, which is used daily, has become a more pleasant and high-quality space.

Thank you very much for always using Majesta Fragrance. Our company will be open as usual during the Obon period. Please feel free to contact us for inquiries about scent arrangements or the introduction of commercial aroma diffusers.

High Strength, Low Cost: The Economic Advantages of Carbon Steel Frames Carbon steel is inherently strong, and this high structural strength ensures stable wind resistance while allowing for a simple support structure, reducing the need for extra components. This also lowers the wear rate during transportation, enabling further savings in material costs and installation expenses. Transportation and Construction: Streamlining the Entire Project The advantages of carbon steel frames are also evident in the transportation and construction phases. Standardized designs simplify on-site installation and shorten construction periods. For example, carbon steel frames can be packaged using a combination of wooden sticks and iron ties, improving unloading efficiency and increasing transport volume. This reduces construction time and labor costs, distributing the overall burden of the project across all stages. Technological Innovation: Breakthroughs in Corrosion Resistance With the evolution of material technology, the corrosion treatment of carbon steel frames has also significantly advanced. Grace Solar has adapted to the technological trends in process development, and all current carbon steel frames utilize AlMgZn coating. At the same time, to meet the special requirements of each project, our company offers custom options for hot-dip galvanizing.

#Intersolar South America - We invite you to attend the most influential solar energy event in Latin America. You will be able to see innovative solar mounting solutions designed for the Latin American market. At booth R2.82, Grace Solar will showcase how it is evolving regional solar projects: - Ground-mounted solar mounting systems suitable for Brazil's tropical storms and humid environments - Flexible roof installation systems that can accommodate diverse architectural needs Let's build the future of solar power together! Venue: Expo Center Norte, São Paulo, Brazil, Booth R2.82 Date: August 26-28, 2025