Development of Forming Technology for Environment-Friendly Products Using Wood Powder Only

仅使用木粉的环保产品成型技术的开发

• 批准号: 16360363
• 负责人: TAKAKURA Norio
• 金额: $ 6.53万
• 依托单位: Kyoto Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360363/
• 关键词: material; wood; powder forming; hot pressing; new material; environment・friendly; ホットプレス

Wood-based materials are environment-friendly resources as they eventually decompose into carbon dioxide and water after disposal. Younger trees have more photosynthetic ability making woods and wood-based materials sustainable resources in the future if properly planned and managed. Problems, however, arise regarding productivity and workability: it takes long years for a tree to grow to a useable size, and the plastic forming of wood materials are more difficult than that of metal and plastic materials. Presently, several techniques and methods have been developed that have enabled the production of wood-based products such as plywood, fiber-board and particle-board. However, the fact that petroleum-based adhesives are used during the production process of these materials presents an environmental problem upon disposal.If a wood powder forming technology that does not involve the use of petroleum-based adhesives will be developed, it would enable the manufacture of wood products of a … More rbitrary form and minimize environmental and productivity problems.This research is aimed to investigate the compaction and flow characteristics of wood powder without any adhesives or binders. Then, such results will be applied to forming techniques in producing complex shaped parts using wood powder only. In forming with wood powder only, the most important issues are the fluidity of the wood powder and the solidification inside the metal mold. Here, wood powder is compacted varying the shape, moisture content, mold condition (temperature and pressure) and the deformation of the compacted powder is then investigated. The condition of compaction and flow mechanism is then clarified. Forming processes such as hot pressing, extrusion and injection molding using metal mold of complex shapes are done. The influence of the forming conditions (pressure, temperature, powder shape) to the flow behavior of the powder is then clarified. Under the optimal forming condition, a bulk density of 0.9 or more in every corner of the mold and a Vickers hardness of around 25 HV distributed uniformly all throughout the complex shaped part(wine glass shape) are found. Hence, the possibility of manufacturing product of practical use using wood powder only is shown. Less

木质材料是环保资源，因为它们在处置后最终分解为二氧化碳和水。年轻的树木有更多的光合作用能力，使木材和木材为基础的材料在未来的可持续资源，如果适当的规划和管理。然而，在生产率和可加工性方面出现了问题：树木生长到可用的尺寸需要很长的时间，并且木材的塑料成型比金属和塑料材料更困难。目前，已经开发了几种技术和方法，使得能够生产基于木材的产品，例如胶合板、纤维板和刨花板。然而，在这些材料的生产过程中使用石油基粘合剂的事实在处置时带来了环境问题。如果开发不涉及使用石油基粘合剂的木粉成型技术，将使木材产品的生产 ...更多信息 本研究旨在探讨不使用任何黏合剂或黏结剂之木粉之压缩特性及流动特性。然后，这些结果将被应用于仅使用木粉生产复杂形状零件的成形技术。在仅用木粉成型时，最重要的问题是木粉的流动性和金属模具内的固化。在这里，木粉压实不同的形状，水分含量，模具条件（温度和压力），然后研究压实粉末的变形。阐明了压实条件和流动机理。使用复杂形状的金属模具进行热压、挤出和注塑等成型工艺。然后阐明了成形条件（压力、温度、粉末形状）对粉末流动行为的影响。在最佳成形条件下，模具各角的体积密度为0.9以上，维氏硬度为25HV左右，在复杂形状的零件（酒杯形状）上均匀分布，从而显示出仅使用木粉制造实用产品的可能性。少

项目成果

Feasibility of Production of Wooden Sheet From Wood Powder without Adhesive by Rolling Process

无粘合剂木粉压延法生产木板的可行性

• 发表时间: 2005
• 期刊: Advanced Technology of Plasticity (CD-ROM)
• 作者: M.Ohta;S.Hirai;Z.Ma;T.Nishimura;Y.Uemura;K.Shimakage;飯塚 高志;倉松 竜平;Takashi IIZUKA;Takashi IIZUKA;Ryohei Kuramatsu;Takashi IIZUKA;Tsunehisa MIKI;T.MIKI;飯塚 高志;Tsunehisa MIKI;T.MIKI;Takashi IIZUKA;飯塚 高志;T.Miki
• 通讯作者: T.Miki

Possibility and Problems in Injection Moulding of Wood Powders

木粉注塑的可能性和问题

• 发表时间: 2004
• 期刊: Transactions of the Japan Society of Mechanical Engineers (C),70-698
• 作者: M.Ohta;S.Hirai;Z.Ma;T.Nishimura;Y.Uemura;K.Shimakage;飯塚 高志;倉松 竜平;Takashi IIZUKA;Takashi IIZUKA;Ryohei Kuramatsu;Takashi IIZUKA;Tsunehisa MIKI;T.MIKI;飯塚 高志;Tsunehisa MIKI;T.MIKI;Takashi IIZUKA;飯塚 高志;T.Miki;T.Miki;T.MIKI;T.Miki;T.Miki;三木 恒久;飯塚 高志;三木 恒久;T.MIKI;Tsunehisa MIKI
• 通讯作者: Tsunehisa MIKI

Injection Mouiding of Wood Powder with Low Binder Content

低粘结剂含量木粉注射成型

• 发表时间: 2005
• 期刊: JSME International Journal, Series A 48・4
• 作者: M.Ohta;S.Hirai;Z.Ma;T.Nishimura;Y.Uemura;K.Shimakage;飯塚 高志;倉松 竜平;Takashi IIZUKA;Takashi IIZUKA;Ryohei Kuramatsu;Takashi IIZUKA;Tsunehisa MIKI
• 通讯作者: Tsunehisa MIKI

木材の塑性加工に関する研究(第2報:木材の組織方向を考慮した曲げ加工)

木材塑性加工研究（第二报告：考虑木材纹理方向的弯曲加工）

• 发表时间: 2005
• 期刊: 平成17年度塑性加工春季講演会講演論文集
• 作者: M.Ohta;S.Hirai;Z.Ma;T.Nishimura;Y.Uemura;K.Shimakage;飯塚 高志;倉松 竜平;Takashi IIZUKA;Takashi IIZUKA;Ryohei Kuramatsu;Takashi IIZUKA;Tsunehisa MIKI;T.MIKI;飯塚 高志;Tsunehisa MIKI;T.MIKI;Takashi IIZUKA;飯塚 高志
• 通讯作者: 飯塚 高志

木材粉末の成形に関する研究(第10報 : 慣用のプラスチック射出成形機を用いた場合の問題点)

木粉成型研究（第十次报告：使用传统塑料注射成型机时存在的问题）

• 发表时间: 2004
• 期刊: 第55回塑性加工連合講演会講演論文集
• 作者: M.Ohta;S.Hirai;Z.Ma;T.Nishimura;Y.Uemura;K.Shimakage;飯塚 高志;倉松 竜平;Takashi IIZUKA;Takashi IIZUKA;Ryohei Kuramatsu;Takashi IIZUKA;Tsunehisa MIKI;T.MIKI;飯塚 高志;Tsunehisa MIKI;T.MIKI;Takashi IIZUKA;飯塚 高志;T.Miki;T.Miki;T.MIKI;T.Miki;T.Miki;三木 恒久;飯塚 高志;三木 恒久
• 通讯作者: 三木 恒久