刨刀加热对纵向刨切厚单板表面质量的影响  

Effect of heating knife on thick veneer quality during longitudinally slicing

作　　者：曹平祥[1] 王宝金[1] 李伟光[1] 郭晓磊[1] 丁建文[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2010年第4期45-48,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金："十一五"国家科技支撑计划(2006BAD18B06)

摘　　要：利用热油加热和温控系统自动加热刨刀,进行厚单板纵向刨切的研究。通过可控红外热成像仪实时监测刀体温度,测量了刨刀加热和非加热刨切的单板背面裂隙度和表面粗糙度。结果证明:通过热油加热刨刀,可使木材切削层产生瞬间蒸汽压,达到软化木材和增加刃口边木材的塑性,瞬时加热切削木材;与未加热刨切相比,加热刨切得到的单板背面裂隙度可降低20%以上,表面粗糙度降低15%～25%。The purpose of this study is to reduce the back clearance and roughness during longitudinally slicing of lamella by heating knife. It was originally studied in the paper that thick veneer would be longitudinally sliced through automatically heating knife with temperature controlling system of hot oil. The knife temperature was monitored with infrared thermograph. The back clearance and roughness of veneer were measured with heating and unheated knife. It was clarified that the vapor pressure was produced in cutting layer, and the material the back clearance rate of the material was decreased by 20 %, and the roughness of veneer was improved by 15 %—25 % when the knife was heated.

关 键 词：单板 刨刀加热 纵向刨切 背面裂隙度 表面粗糙度 

分 类 号：TS653[轻工技术与工程]