CAJ | 학술논문

在温度(20±2)℃，相对湿度(65±5)%、(86±5)%、(33±5)%的条件下，对樟子松、云杉、杨木和榉木四种木材进行了尺寸稳定性测定。结果表明：①四种木材大小试件吸湿率的大小排序为：云杉>榉木>杨木>樟子松；解吸率的大小排序为：樟子松>杨木>云杉>榉木。②湿胀率和收缩率径向取平均值后大小排序为：榉木（0.988%）>云杉（0.715%）>杨木（0.585%）>樟子松（0.487%）；弦向湿胀收缩率取平均值后大小排序为：榉木（1.247%）>云杉（1.021%）>杨木（0.908%）>樟子松（0.858%）。可以认为：樟子松的尺寸稳定性较好，杨木次之，再次是云杉，榉木的稳定性较差。
재온도(20±2)℃，상대습도(65±5)%、(86±5)%、(33±5)%적조건하，대장자송、운삼、양목화거목사충목재진행료척촌은정성측정。결과표명：①사충목재대소시건흡습솔적대소배서위：운삼>거목>양목>장자송；해흡솔적대소배서위：장자송>양목>운삼>거목。②습창솔화수축솔경향취평균치후대소배서위：거목（0.988%）>운삼（0.715%）>양목（0.585%）>장자송（0.487%）；현향습창수축솔취평균치후대소배서위：거목（1.247%）>운삼（1.021%）>양목（0.908%）>장자송（0.858%）。가이인위：장자송적척촌은정성교호，양목차지，재차시운삼，거목적은정성교차。
Dimensional stability for four wood of pinus sylvestris,picea asperata,beech and populus tomentosa was tested. This research was completed under the conditions of(20±2)℃from(65±5)% to(86±5)% and(33±5)% of relative humidity as materials to study their dimensional stability. Results indicate that in the aspect of the moisture absorption rate:spruce is the maximum,beech followed,populus tomentosa next,pinus sylvestris is the minimum .In the aspect of the mois-ture desorption rate:pinus sylvestris is the maximum,populus tomentosa followed,spruce next,beech is the minimum .In the aspect of swelling and shrinkage,the length is very small,the biggest is 0.06%. Four woods in string,Beech is the maximum 1.247%,picea asperata is the next 1.021%,then is populus tomentosa 0.908%,pinus sylvestris is the minimum 0.858%. In the aspect of diameter of four woods Beech is the maximum 0.988%,picea asperata is the next 0.715%,then is populus to-mentosa 0.585%,pinus sylvestris is the minimum 0.487% .To sum up,the dimensional stability of pinus sylvestris is the best,populus tomentosa followed,then is picea asperata,and beech is the worst .