Development of High Performance Wood ＆ Metal Hybrid Composites

通过对木材的压实，进行了生产高强度压缩木材的研究。研究了该高强材料的导热性和倾倒能力，并进行了工业应用试验。使用的木材是雪松的木材。它是通过热压机将小直径的雪松煮沸软化而压实，并在高温蒸汽下固定在形状上。在进行利用侧性能评价的同时，对压实技术进行了以节能、省力为目标的基础研究。1)木材压实节能技术的发展。它充分软化，虽然塑化程度温度降低到25℃。试验证明，对压缩木材的抗弯强度和形状固定性没有影响。降低固形时的温度和时间成为可能，并尝试节能。2)压缩木材倾倒能力的工业应用。汽车的保险杠和冲击梁都有抗冲击和防雷的要求。开发研究用于做木材和铝挤压成型复合材料的粘弹性材料。该复合材料是由压缩木材插入封闭截面的铝型材制成的。通过动弯曲试验，测定了试件的强度和破坏吸收能。结果表明，在静态试验中，铝在弯曲强度下没有增强作用，但在吸收能量上有较大的增强作用。在动冲击试验中，断裂能也提高了50%。断裂模式的变化证实了这一点。

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.