木材科学与技术2024，Vol.38Issue(6)：8-14,7.DOI:10.12326/j.2096-9694.2024055
预冻处理对致远舰出水木材干燥特性的影响
Effect of Pre-Freezing Treatment on Drying Characteristics of Waterlogged Wood from Chinese Cruiser Zhiyuan
摘要
Abstract
This paper presents the investigation on the waterlogged wood from Chinese Cruiser Zhiyuan.The information of wood species,moisture content,and basic density were analyzed.The species and degradation degree of the waterlogged wood were classified as mildly decayed teak and severely decayed banyan.The samples of waterlogged wood were pre-frozen at-20℃ and-79℃ for 48 hoours.The drying speed and the shrinkage rate of the samples were measured and analyzed.The results showed that pre-freezing treatment significantly reduced the shrinkage rate but had no significant effect on the drying rate.The impacts of two freezing temperatures were minimal,therefore the treatment result could be achieved by using-20℃ freezing treatment for energy saving.Although the deformation of the severely decayed banyan samples reduced during drying after pre-freezing treatment,the final deformation rate was considerably large due to the poor strength of samples.The pre-freezing process was not suitable for severely decayed samples.An optimized treatment process need to be further studied.关键词
出水木材/预冻处理/干燥/致远舰Key words
waterlogged wood/pre-freezing treatment/drying/Chinese Cruiser Zhiyuan分类
农业科技引用本文复制引用
高鑫,曹惠敏,郭娟,周凡,殷亚方,周永东..预冻处理对致远舰出水木材干燥特性的影响[J].木材科学与技术,2024,38(6):8-14,7.基金项目
国家自然科学基金"水分移动中伴随木质素交联重构生成饱水考古木材细胞壁·腔形态学演变机制"(32471796) （32471796）
国家自然科学科学基金"木材液体渗透非达西流动特性及其微波调控机制研究"(32101461). （32101461）
