摘要
以杨木树脂材、175℃真空热处理杨木树脂材、辐射松树脂材、190℃真空热处理辐射松树脂材为试验材料,研究改性木材种类、孔径比对抗拔力的影响以及孔径比与不同预埋螺母长度抗拔力的相关性。结果表明,改性木材的种类不同,木材预埋螺母的抗拔力差异较大;木材预埋螺母的抗拔力随孔径比的增大而减小;当螺母长度确定时,4种改性木材的孔径比与抗拔力呈显著负相关关系。
Four resin impregnated woods,including Populus wood,175℃vacuum heat-treated Populus wood,Pinus radiata Wood and 190℃vacuum heat-treated Pinus radiata wood,were used as test materials to study the effects of wood types,pore diameter ratio on the drawing strength and the correlation between pore diameter ratio and drawing strength of different embedded nut lengths.The results showed that the drawing strength of embedded nuts varied greatly with the types of modified wood.The drawing strength of the embedded nut decreased with the increase of the aperture ratio.When the length of the embedded nut was fixed,the pore diameter ratio of the four kinds of modified wood had a significant negative correlation with the drawing strength.
作者
胡强利
纪佳俊
冉雪蕾
王梦蕾
Hu Qiangli;Ji Jiajun;Ran Xuelei;Wang Menglei(The Faculty of Forestry,Hebei Agricultural University,Baoding,Hebei 071000,China)
出处
《中国人造板》
2022年第6期16-20,共5页
China Wood-Based Panels
基金
河北省重点研发计划项目“杨木热处理工艺的研究和应用”(项目编号:18214003D)
国家木竹产业技术创新战略联盟科研计划课题“辐射松木材树脂浸渍与热处理复合改性关键技术开发及产品应用”(编号:TIAWBI201803)。
关键词
树脂浸渍改性材
杨木
辐射松
真空热处理
抗拔力
resin impregnated wood
Populus
Pinus radiata
vacuum heat treatment
drawing strength
