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 %。
Abstract
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.
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参考文献
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基金
收稿日期：2009-06-21修回日期：2010-01-14基金项目：“十一五”国家科 技支撑计划(2006BAD18B06)作者简介：曹平祥(1963—)，教授，博士。Email: caopx@njfu.com.cn。引文格式：曹平祥,王宝金,李伟光,等. 刨刀加热对纵向刨切厚单板表面质量 的影响[J]. 南京林业大学学报:自然科学版,2010,34(4):45-48.
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