摘要
在不考虑单板在热压过程中的热解等因素的情况下,根据单板热压前后木材质量不变的假设,综合研究了单板压缩率、密度与热压因素和单板初含水率之间的关系,确定单板压缩率与各个主要因素之间的关系方程,建立单板密度变化模型。多因素实验结果表明所建立的密度模型具有一定的准确性,尤其是当热压压力低于5 MPa时,模型预测值与实测值间的误差较小。
The relationships among the compression ratio of veneer, the hot-pressing factors and initial moisture content of veneer were investigated based on the hypothesis that veneer weight will not change before and after hot pressing with- out considering wood pyrolysis during hot pressing. The relation equation between the compression ratio of veneer and the main factors was determined, and the model of density fluctuations was further established. The result of multiple factors test showed that the veneer density model was exact when the hot-pressing pressure was lower than 5 MPa.
出处
《南京林业大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第4期112-114,共3页
Journal of Nanjing Forestry University：Natural Sciences Edition
基金
国家林业公益性科研专项项目(201104042)
江苏省科技攻关项目(201104042)
江苏省苏北科技发展计划(BC2011413)
江苏省科技型企业技术创新资金项目(BC2010419)
关键词
速生杨木
单板
压缩率
密度模型
fast-growing poplar
veneer
compression ratio
density model
