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MEKANİK ODUN MODİFİKASYON METOTLARI

MECHANICAL WOOD MODIFICATION METHODS

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Abstract (2. Language): 
The wood material has been the most preferable material in order to meet the needs of accommodation, transport and social since human beings existed. The different “Wood Modification Methods” has been developed as a result of all the scientific studies and researches in order to remove the negative characteristics of the wood material from centuries ago to nowadays. The wood material is usually admitted as too soft and too weak for structural applications required hardness and durability. However, the wood material increased density can be an alternative for other structural materials. Most of the wood material mechanical characteristics are related to density. A lot of studies have been carried out to develop the suitable operation, because the densification of wood material increases mechanical characteristics and hardness of wood material. By means of densification, low-density wood material is converted to high-density wood material, and its trade value is increased. In this study, from the environment friendly modification methods which is used to modify wood material and to improve mechanical strength properties of wood Thermo-Hygro-Mechanic (THM), Viscoelastic-Thermal-Compression (VTC), Thermo-Mechanic (TM) and the new application Thermo-Vibro-Mechanic (TVM) have been investigated.
Abstract (Original Language): 
Ağaç malzeme, insanoğlunun varoluşundan bu yana barınma, ulaşım ve sosyal ihtiyaçlarını karşılamak amacıyla sıkça tercih ettiği bir malzeme olmuştur. Yüzyıllar öncesinden günümüze kadar, ağaç malzemenin bazı olumsuz özelliklerinin giderilmesi için yapılan tüm bilimsel çalışmalar ve araştırmalar sonucunda, farklı ''Ahşap Modifikasyonu Yöntemleri'' geliştirilmiştir. Ağaç malzeme genellikle yüksek direnç, sertlik ve dayanıklılık gerektiren yapısal uygulamalar için çok yumuşak ya da çok zayıf olarak kabul edilmektedir. Ancak, yoğunluğu artırılmış bir ağaç malzeme, diğer yapısal malzemelere alternatif olabilmektedir. Ağaç malzemenin mekanik özelliklerinin çoğu, yoğunluk ile ilişkilidir. Ağaç malzemenin yoğunlaştırılması, mekanik özelliklerini ve sertliğini artırdığından, bu konuda uygun bir işlem geliştirmek için birçok çalışma yapılmıştır. Yoğunlaştırma işlemiyle düşük yoğunluklu ağaç malzemeler yüksek yoğunluklu hale getirilmekte ve ticari olarak yüksek değerli ürünler haline dönüştürülebilmektedir. Bu çalışmada, ağaç malzemeyi modifiye etmek ve mekanik direnç özelliklerini iyileştirmek için kullanılan çevre dostu modifikasyon yöntemlerinden, Termo-Higro-Mekanik (THM) metodu, Viscoelastik-Termal-Sıkıştırma (VTC) metodu, Termo-Mekanik (TM) metodu ve yeni bir uygulama olan Termo-Vibro-Mekanik (TVM) yoğunlaştırma metodu incelenmiştir.
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