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Development of recycling technology for automotive bumper
Abstracts constant power. The test results show that the maximum tooth load can explain the fatigue degradation of the toothed belts to some extent while the other parameter, the maximum frictional work can evaluate the fatigue life of the belt due to wear of the belt facing fabric more appropriately than the maximum tooth load. 9535017 A Measurement Techniques for the Rotational Movement of Gear Trains using Hilbert Transform Akira lshihara, Hiroshi Sugito, Toshihiko Nishiyama (Komatsu Co. Ltd.) To know the gear impact mechanism of a engine, measurement of rotational movement was carried out using Hilbert Transform that is well known as demodulation tecqnique for FM signal. As a results, it was clarified that this method is more efficient and easier for measuring than conventional method 9535026 Development and Applicability Estimation of the Tire Contact Pressure Measurement System Yoshiteru Mizutani, Tatsuyuki Amago, Shigeru Sakuma, Toshimichi Takahashi, Nobuyuki Mori (Toyota Central R&D Labs., Inc.) Akira Nagae (Toyota Motor Corporation), Manabu Yasuoka (Toy0 Tire & Rubber Co., Ltd.) The new “Tire Contact Pressure Measurement System” composed of many pressure sensors has been developed. These pressure sensors have higher reliability than the conventional types and they can be utilized to estimate the irregular wear. This system has been also proved applicable to the analysis of the generation mechanism of axle forces from contact pressures. 953.5035 The Development of a Parameter Identification System for Magic Formula Tyre Model Hoshino Mitsuhiro, Satoh Yukiharu (Toyota Motor Corporation), Takahashi Toshimichi, Mizuno Masahiko (Toyota Central R&D Labs., Inc.) The accuracy of the vehicle dynamics simulation result is for a great deal determined by the accuracy of the tyre model used. Therefore the accurate tyre model is needed in vehicle dynamics studies. In this study, we applied Magic Formula new version and constructed a parameter identification system to develop such a tyre model. This system is operated with dialogic interface and the identification results of each modeling steps are shown by graphs. So it is easy to find a cause of identification error and to get good identification results. 9535044 A Modeling on Tire Dynamics of Lateral Force Toshiki Ezoe, lchiro Kageyama, Hiroyuki Fujii (Nihon University) This study describes a new tire model for dynamics using result of frequency response of lateral tire force and inner displacement of tire. By means of measurements of the tire lateral stiffness at dynamical situation, it is clear that the inner displacement of side wall of the tire is shared with 90% of the total displacement, and a damping factor of a tire for the lateral direction is a function of the input frequency. And it is also clear that the factor has minimum value around 1OHz. Using a vehicle model including a new tire model, it is distinct that characteristics of a tire has a big effect to the eigenvalue of a steering system. 9535053 Studies on the Mechanical Properties of Tires Hideo Sakai (Osaka Sangyo University Junior Coll. Dept.) Fiala presented his theories and modeling of cornering characteristics in 19.54. After that, there were theoretical elaborations concerning the properties of braking dynamic and a theoretical account of the dynamics of braking while cornering. An explanatory description of these theories of the mechanical properties of tires are presented. Recently, mathematical tire models have become necessary for the computing analysis of vehicle dynamics, so a semi-theoretical empirical tire model, in which the theories have been corrected to match experimental results, is described. The summaries of research into squeal noise during cornering, research into the effect of main factors on the wear of tire tread and research involving the visualization of the contact pressure of tires are presented.
317 9535062 Study on the Weatherability Evaluation Methods of Plastic Glazing Materials for Automobiles - Comparison between Outdoor Exposure and Accelerated Weathering Tests Koichi Oshino (Japan Automobile Research Institute) In order to examine the evaluation methods on the weatherability of plastic glazing materials (PGM), the various outdoor exposure and the accelerated weathering tests have been carried out. The results are as follows. The outdoor exposure test under the simulated vehicle environmental conditions is the useful evaluation method for PGM. The surface degradation on the acryl hardcoated polycarbonate(P-A) of the accelerated weathering test is different from that of the outdoor exposure.
Development of Recycling Technology for Automotive 9535071 Bumper Junichi Handa, Hisayuki lwai, Sadao lkeda, Toshiyuki Suzuki (Toyota Motor Corporation), Norio Satoh, Takashi Ohta, Mitsumasa Matsushita, Shigetoshi Sugiyama (Toyota Central Res. & Develop. Labs., INC.) In automotive plastic parts, bumpers are rather bigger parts and easy to be detached. And there is growing need to develop bumpers recycling technology. Now we developed the recycling technology for waste painted Super Olefin Polymer (SOP) bumpers from car dealers in production. This technology consists of discriminating from the repair in market by dyeing, and of melting SOP resin and hydrolysis of the paint film which are carried out simultaneously in a twin screw extruder Reactive Processing System.
Development of Recycling Technology by Application of 9535080 Fine Pulverization - Recycling of Painted ABS Resin and Compressed Seat Gasket Yoshihiko Tatemichi, Tsutomu Tomizawa (Honda R&D Co., Ltd. Asaka R & D Center) Painted ABS resin and compressed seat gasket have been widely used for motorcycle parts. As there has been no effective technology to recycle these parts keeping similar performance to original parts, the development of such technology has been desired from the viewpoint of effective utilization of resources. We have now successfully developed a technology which enables material recycling with an application of fine pulverization and renewal mixing process.
lsamu 9535099 Development of TPO Foamed Hood-Weatherstrips Terasawa, Masashi Sakakibara, Tomonori Hamada (Mitsubishi Motors Corporation), Yuji Yamamoto (Hiroshima Kasei, Ltd.), Masatoshi Akami (AES Japan Ltd.) It is of urgent necessity for our country to develop the application technologies of recyclable materials, as one of counter measures to cope with the global environment. In the past, weatherstrips have been made from EPDM rubber and it was basically impossible to recycle them to re-use for as weatherstrips. Now, we have developed recyclable foamed weatherstrips using thermoplastic olefinic elastomer (TPO). This weatherstrips have better properties than existing EPDM rubber products in heat resistance and compression set, and also durability has much improved. Also, as it does not require the compounding process and vulcanization process, a certain cost down is achieved.
9535107 Solvent-Free Adhesive Technology for Vacuum Forming of Instrument Crash Pad Tetsuya Oda, Keiichi Honjo, Makoto Ohyama (Honda R&D Co., Ltd) In order to diminish air pollution and improve conditions in the work environment, two-part water-based adhesive was developed for vacuum forming of instrument crash pad. It uses a self-emulsification type of urethane emulsion as its main ingredient. And, a number of additives which are effective in improving adhesion to both resin foundation and surface material are blended in. So, this adhesive has excellent initial adhesive properties, durability and mass productivity which are all required of adhesive for instrument crash pad applications.
317 9535062 Study on the Weatherability Evaluation Methods of Plastic Glazing Materials for Automobiles - Comparison between Outdoor Exposure and Accelerated Weathering Tests Koichi Oshino (Japan Automobile Research Institute) In order to examine the evaluation methods on the weatherability of plastic glazing materials (PGM), the various outdoor exposure and the accelerated weathering tests have been carried out. The results are as follows. The outdoor exposure test under the simulated vehicle environmental conditions is the useful evaluation method for PGM. The surface degradation on the acryl hardcoated polycarbonate(P-A) of the accelerated weathering test is different from that of the outdoor exposure.
Development of Recycling Technology for Automotive 9535071 Bumper Junichi Handa, Hisayuki lwai, Sadao lkeda, Toshiyuki Suzuki (Toyota Motor Corporation), Norio Satoh, Takashi Ohta, Mitsumasa Matsushita, Shigetoshi Sugiyama (Toyota Central Res. & Develop. Labs., INC.) In automotive plastic parts, bumpers are rather bigger parts and easy to be detached. And there is growing need to develop bumpers recycling technology. Now we developed the recycling technology for waste painted Super Olefin Polymer (SOP) bumpers from car dealers in production. This technology consists of discriminating from the repair in market by dyeing, and of melting SOP resin and hydrolysis of the paint film which are carried out simultaneously in a twin screw extruder Reactive Processing System.
Development of Recycling Technology by Application of 9535080 Fine Pulverization - Recycling of Painted ABS Resin and Compressed Seat Gasket Yoshihiko Tatemichi, Tsutomu Tomizawa (Honda R&D Co., Ltd. Asaka R & D Center) Painted ABS resin and compressed seat gasket have been widely used for motorcycle parts. As there has been no effective technology to recycle these parts keeping similar performance to original parts, the development of such technology has been desired from the viewpoint of effective utilization of resources. We have now successfully developed a technology which enables material recycling with an application of fine pulverization and renewal mixing process.
lsamu 9535099 Development of TPO Foamed Hood-Weatherstrips Terasawa, Masashi Sakakibara, Tomonori Hamada (Mitsubishi Motors Corporation), Yuji Yamamoto (Hiroshima Kasei, Ltd.), Masatoshi Akami (AES Japan Ltd.) It is of urgent necessity for our country to develop the application technologies of recyclable materials, as one of counter measures to cope with the global environment. In the past, weatherstrips have been made from EPDM rubber and it was basically impossible to recycle them to re-use for as weatherstrips. Now, we have developed recyclable foamed weatherstrips using thermoplastic olefinic elastomer (TPO). This weatherstrips have better properties than existing EPDM rubber products in heat resistance and compression set, and also durability has much improved. Also, as it does not require the compounding process and vulcanization process, a certain cost down is achieved.
9535107 Solvent-Free Adhesive Technology for Vacuum Forming of Instrument Crash Pad Tetsuya Oda, Keiichi Honjo, Makoto Ohyama (Honda R&D Co., Ltd) In order to diminish air pollution and improve conditions in the work environment, two-part water-based adhesive was developed for vacuum forming of instrument crash pad. It uses a self-emulsification type of urethane emulsion as its main ingredient. And, a number of additives which are effective in improving adhesion to both resin foundation and surface material are blended in. So, this adhesive has excellent initial adhesive properties, durability and mass productivity which are all required of adhesive for instrument crash pad applications.