摘要
文章采用间歇抽真空法及利用木材自身含有的水分对马尾松木材进行热处理,并研究了热处理温度和时间对马尾松木材的尺寸稳定性(ASE值)和力学性能的影响。结果表明:处理温度和时间均显著影响着木材的力学强度和ASE。综合考虑处理温度和处理时间对ASE、顺纹抗压强度和抗弯强度的影响,较佳的真空热处理工艺为:压力-0.09 Mpa、处理温度200℃,处理时间1 h。
The research that temperature and time of heat treatment affected the performance of dimensional stability and mechanical property on vacuum heat-modified wood was conducted. The result was analyzed with SPSS software. The dimensional stability and compression strength parallel to grain on heat-treated wood was easily susceptible to temperature of treatment. The dimensional stability and bend strength on heat-treated wood was easily susceptible to time of treatment. Sundry factors must be considered comprehensively. So some better parameters can he dealt with as follows that 200 centigrade for temperature and one hour for the processing time.
出处
《广东林业科技》
2009年第3期42-45,共4页
Forestry Science and Technology of Guangdong Province
基金
广东省农业攻关项目(2006B20401003)
国际热带木材组织项目PD398/06Rev(2)
关键词
尺寸稳定性
热处理
真空干燥
抗湿涨
力学性能
dimensional stability, heat treatment, vacuum drying, anti-swelling efficiency, mechanical performance
