Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/65670
標題: 乾燥溫度對竹材性質之影響
The effects of drying temperatures on the properties of bamboos
作者: 林弘基
Lin, Hong-Chi
關鍵字: drying time;乾燥時間;drying rate;honeycomb;split;乾燥速率;蜂巢裂;開裂
出版社: 森林學系
摘要: 
The purpose of this study was to investigate the physical and mechanical properties and energy consumption of Moso bamboo,Ma bamboo and Thorny bamboo which were kiln-dried at differenttemperatures. The results of this study are summerized as follows:1.The drying time of Moso bamboo decreased with increasing kiln temperature; drying rate increased with increasing kiln temperature, but was inversely correlated with the thickness of bamboo wall.2.Density of three kinds of bamboos increased with increasing kiln temperature. There were having a tendency to show that the highest density was found at the top section of culm, followed by the middle and bottom sections.3.Moso bamboo dried at 120℃, no splitting was found, but honeycomb occurred at node; when dried at 100℃, splitting was found at the top and middle sections; honeycomb occurred at node; when dried at 80℃ and 60℃, splitting was found at the top and middle section.4.The tensile strength, shearing strength, and static bending strength of Moso bamboo and Thorny bamboo increased with increasing kiln temperature, having a tendency to show that the top section of culm was the highest in strength values, followed by the middle and bottom sections; as regards Ma bamboo, the highest strength was found when dried at 80℃, also having a tendency to show that the top section of the culm was the highest in strength values, followed by that of middle and bottom sections.5.The tensile strength of Thorny bamboo was the highest among three kinds of bamboos, followed by Moso bamboo and Ma bamboo; as regards shearing strength, Moso bamboo was the highest, followed by Thorny bamboo and Ma bamboo; as regards static bending strength, Thorny bamboo was the highest, followed by Ma bamboo and Moso bamboo.6.Moso bamboo kiln-dried at different temperatures, the highest total power consumption was found when dried at 100℃, followed by those of 80℃ and 60℃, 120℃ was the lowest.

本研究旨在探討本省常用之孟宗竹、麻竹及刺竹,以不同溫度乾燥後
之物理性質、機械性質及能源耗費情形,其結果摘錄如下:1.孟宗竹之乾燥
時間隨窯溫之升高而大幅縮短,且乾燥速率隨窯溫升高而增快,但與 竹壁
之厚度成反比。2.三種竹材之密度隨窯溫之升高而增加,且有上段大於中
段,中段大於下段之趨勢。3.孟宗竹以120℃乾燥者,並無任何開裂,但竹節
有蜂巢裂;以100℃乾燥者,上段和中段 有開裂,下段則無開裂,竹節有蜂
巢裂;以80℃、60℃乾燥者,其上段與中段有開裂, 下段則無開裂,竹節無
蜂巢裂。4.孟宗竹、刺竹之拉伸強度、剪斷強度、靜曲強度大都隨窯溫升
高而增加,有上段大於 中段,中段大於下段之趨勢;但麻竹乃以80℃乾燥
者為最大,亦有上段大於中段,中段 大於下段之趨勢。5.三種竹材之拉伸
強度以刺竹最大,孟宗竹次之,麻竹最低;剪斷強度以孟宗竹最大,刺 竹次
之,麻竹最低;靜曲強度以刺竹最大,麻竹次之,孟宗竹最低。6.孟宗竹以不
同窯溫乾燥時,全部電力消耗以 100℃乾燥者最耗電,其次為 80℃及60℃
,而以 120℃最省電。
URI: http://hdl.handle.net/11455/65670
Appears in Collections:森林學系

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