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Development of High Performance Wood ＆ Metal Hybrid Composites

高性能木材和金属混合复合材料的开发

基本信息

批准号：
10555250
负责人：
NISHIMURA Hisashi
金额：
$ 6.72万
依托单位：
TOKYO METROPOLITAN UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10555250/
关键词：
Woody Material Compressed Wood Hybrid Composites Strength Plastic Working Aluminum Shape Lumber Lightning 衝撃吸収複合材建材自動車部材

项目摘要

By compacting wood, the research which produced the high-strength compressed wood was carried out. As a performance of this high-sterngth material, thermal conductivity and dumping capacity were noticed, and the industrial application was tried. The use wood is lumber from thinning of the cedar. It is compacted by hot-press that boiled and softened the small diameter of cedar, and it is fixed under the high temperature steam in the shape. Performance evaluation in the utilization side was carried out, while the basic research with the aim of energy saving and labor saving of the compaction technology was carried out.1)The development of energy saving technology of the wood compaction.It sufficiently softened, though the degree of plasticizing temperature lower to 25℃. It was proven that, there was not influence in bending strength and shape fixity of the compressed lumber. And it became possible that temperature and time in the shape fixation were also lowered, and the energy saving was attempted.2)The industrial application of the dumping capacity of compressed lumber.Bumpers and impact beams of the automobile are required impact resistance and lightning. Development research used for doing wood and aluminum extrusion shape composites which is viscoelastic materials. The composites materials are made by compressed wood was inserted in the closed section aluminum shape. By dynamic flexure test, the strength and absorbed energy to the destruction were measured. Though as the result, in the static test, there was no reinforced effect of the aluminum at bending strength, there was large effect in the absorbed energy. In the dynamic impact test, the breaking energy also improved 50%. This comfirmed being by the change of the fracture pattern.

通过压实木材，进行了生产高强度压缩木材的研究。该材料具有良好的导热性能和倾倒能力，并进行了工业应用试验。使用的木材是雪松间伐后的木材。它是通过热压将小直径的雪松煮熟并软化，并在高温蒸汽下固定在形状上。1)木材压缩节能技术的发展：塑化温度降至25℃，但塑化温度降低到25℃时，木材的软化充分。实践证明，该方法对压缩木材的抗弯强度和形状固定性没有影响。2)压缩木材倾倒能力的工业化应用。汽车的减震器和防撞梁都有抗冲击和防雷的要求。用于做木材和铝挤压型复合材料的开发研究，这种复合材料是粘弹性材料。该复合材料是由压缩木材插入封闭截面的铝型材制成的。通过动弯试验，测定了材料的强度和破坏时的吸收能量。虽然在静力试验中，铝在抗弯强度上没有增强作用，但在吸能方面有较大的影响。在动态冲击试验中，断裂能也提高了50%。断口形态的变化证实了这一点。