温度和热处理方法对桃花心木的物理性质和最终质量的影响

Ragil Widyorini, Khusnul Khotimah, T. A. Prayitno
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引用次数: 13

摘要

热处理被认为是一种可以用来增加维度稳定性和降低湿度的方法。另一方面,热处理会使木材的颜色变暗,减少木材力学的性质,以及木材的耐受性。因此,对如何在最佳条件下热处理的研究非常有趣,以便更好地生产优质木材。本研究的目的是确定温度相互作用和热处理方法对桃花心木的物理性质和最终质量的影响。治疗方法的一个例子是来自一个普通锯木厂的桃花心木。这项研究采用2热处理方法烤箱和蒸发(steaming)在90°C的温度变化,120°C, 150°C有效时间2小时。物理性质测试是根据ASTM的标准进行的,这些标准包括均衡的水能、维度的变化、颜色的变化和适应性。最后的测试包括交叉切割、第八级和闪光测试。研究表明,温度和热治疗方法之间的相互作用对颜色的变化有着明显的影响,对径向缩短、交叉切割试验和第8次受精试验也产生了明显的影响。烤箱方法产生的水份和较低的径向发展、较亮的颜色和比蒸发方法更好的dela受精样本。关键字:热处理、烤箱方法、蒸发方法、温度、物理属性上温度和热效果的最后效果,我们所知的一种方法,可以增加木材的高度稳定和减少的方法。悬浮,热力可以使木头变成黑暗,减少湿气,就像它的机械特性一样好。因此,这种温和的热化意识到房地产treatment的高质量。这项研究利用了对马哈戈尼森林物理特性和最终质量的热量和治疗方法。两种治疗方法,i.e.烤箱的方法和蒸的方法,在这个研究中被使用。《加热temperatures是套在90°C, 120°C和150°C。木物理性能测试结果为其交叉切割、延迟和光泽测试。结果表明,治疗方法和加热温度之间的相互作用对颜色、放射状收缩、交叉切割和延时试验的变化有明显的影响。减少水分和径向收缩的方法,轻色,和更好的木材质量,结合抑制方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pengaruh Suhu dan Metode Perlakuan Panas terhadap Sifat Fisika dan Kualitas Finishing Kayu Mahoni
Perlakuan panas dikenal sebagai metode yang dapat digunakan untuk meningkatkan stabilitas dimensi dan menurunkan higroskopisitas. Di sisi lain, perlakuan panas dapat membuat warna kayu menjadi lebih gelap, penurunan sifat mekanika kayu, dan sifat wetabilitas kayu. Oleh karena itu, penelitian mengenai perlakuan panas pada kondisi yang optimum sangat menarik untuk dilakukan agar menghasilkan kayu dengan kualitas yang lebih baik. Tujuan penelitian ini adalah mengetahui pengaruh interaksi suhu dan metode perlakuan panas terhadap sifat fisika dan kualitas finishing kayu mahoni. Contoh uji perlakuan dibuat dari kayu mahoni yang berasal dari industri penggergajian kayu rakyat. Penelitian ini menggunakan 2 metode perlakuan panas yaitu metode oven dan penguapan (steaming) pada variasi suhu 90°C, 120°C, dan 150°C selama 2 jam waktu efektif. Pengujian sifat fisika diuji berdasarkan standar ASTM, yang meliputi : kadar air seimbang, perubahan dimensi, perubahan warna, dan wetabilitas. Pengujian finishing meliputi cross cut test, uji delaminasi, dan uji kekilapan (glossy test). Hasil penelitian menunjukkan bahwa interaksi antara suhu dan metode perlakuan panas berpengaruh sangat nyata terhadap perubahan warna, serta berpengaruh nyata terhadap penyusutan radial, cross cut test, dan uji delaminasi. Metode oven menghasilkan contoh uji dengan kadar air dan pengembangan radial yang lebih rendah, warna yang lebih terang, serta uji delaminasi yang lebih baik dibandingkan dengan metode penguapan.Kata kunci: perlakuan panas, metode oven, metode penguapan, suhu, finishing Effect of temperature and heat treatment on physical properties and finishing quality of mahagony woodAbstractHeat treatment is well known as a method for increasing dimensional stability and reducing hygroscopicity of wood. However, heat tratment can cause the color of wood become darker and reduce the wettability, as well as its mechanical properties. Therefore, the optimum condition of heat treatment is essential to be studied to obtain the high quality of properties treated wood. This research focused on investigating the heating temperature and treatment method on physical properties and finishing quality of mahagony wood. Two treatment methods, i.e. oven method and steaming method, were used in this research. The heating temperatures were set at 90°C, 120°C, and 150°C. The effective heating time was 2 h. The wood physical properties were tested according to ASTM standards and wood finishing quality were tested for its cross cut, delamination, and glossy test. The results showed that interaction between treatment method and heating temperature affected significantly on the change in color, radial shrinkage, cross cut test, and delamination test. Oven method resulted in reducing moisture content and radial shrinkage, light color, and better quality of wood, compared to steaming method.  
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