[Book] Development of Noise Reduction, Soundproofing, and Vibration Damping Technologies and Materials for Improving Interior Quietness in Automobiles (No. 2124)

What properties are required for soundproofing packages? What are the application examples of active noise control?

Book Title: Development of Noise Reduction and Vibration Control Technologies and Materials for Automotive Interiors ■ Key Points of This Book ◆ Vibration and Noise Control Technologies for Next-Generation Vehicles ◆ - Mechanisms of vibration and unpleasant noise generation in automobiles; sounds produced in next-generation vehicles - Achieving a balance between sound insulation, sound absorption, and lightweight materials; proper placement of soundproofing and sound-absorbing materials in vehicle interiors - Application of active noise control in automobiles - Structures of vehicles that reduce NVH (Noise, Vibration, Harshness) - Case studies on countermeasures for "wind noise" and "road noise" - What is required from soundproofing packages? ◆ Development of Sound Insulation, Sound Absorption, Damping, and Vibration Control Materials ◆ - Mechanisms of sound propagation, sound insulation, sound absorption, damping, noise reduction, and resonance phenomena - Design of porous materials and their sound absorption characteristics - Balancing lightweight, durability, and moldability - Case studies on the development of materials to reduce vehicle-specific noise and vibration ◆ Evaluation of Sound Quality in Automotive Interiors, Methods for Assessing Acoustic Comfort, and Sound Design ◆ - Acoustic analysis techniques for automotive interiors - Psychoacoustic evaluation for acoustic design considering human sensitivity - Evaluation of timbre and sound quality for sound design

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● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If you require a detailed technical explanation, please contact us.

A "non-contact switch" that allows you to open and close doors simply by waving your hand, without directly touching the doorknob or switch! By adopting microwave technology, the risk of malfunction due to condensation in environments with temperature differences, such as cold storage warehouses, is significantly reduced. It reduces the risk of virus and bacterial infections in places where hygiene is a concern, such as food factories, hospitals, nursing facilities, and restaurant kitchens. 【Features】 ○ Reduces the risk of virus infection by allowing door operation without contact ○ Waterproof and dustproof (IP55 design), allowing the main unit to be washed with water (note: the wall surface (back side) is not applicable) ○ LED display and response sound allow for easy confirmation of detection status ○ Two pattern settings for one-shot and latch output are possible ○ The thinnest in the industry! Only 22mm thick! ◎ For more details, please download the catalog or contact us.

Japan is among the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of significant earthquakes occurring. For the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake measures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" ◎ For more details, please download the materials or contact us.

The non-contact beam touch sensor "HA-T401/HA-T520" has a compact detection range, making it an ideal automatic door sensor for installation on automatic doors facing narrow corridors or busy streets. Depending on the application and installation location, you can choose between "non-vision mounting type" and "non-vision built-in type." 【Features】 ● With the beam touch sensor, you can open and close the automatic door simply by bringing your hand close without touching it, ensuring hygiene. ● Depending on the installation environment, such as single sliding or bi-parting doors, the detection range can be set in four ways: left, center, right, with 4 spots and 12 spots settings. ● Two types of activation row settings are available to reduce unnecessary opening and closing of the automatic door due to cross traffic, contributing to energy-saving effects. ● The touch switch and infrared sensor are integrated, allowing for a switch between beam touch and infrared sensor modes with a single model. 【Recommended for such places!】 ☑ Entrances facing busy corridors ☑ Counters or signs near the door ☑ Buildings facing narrow corridors ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors ◎ For more details, please download the materials or contact us.