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当前位置: 首页 > 文章 > 软化处理对桉木刨切单板质量的影响 东北林业大学学报 2017 (8) 61-65
Position: Home > Articles > Effect of Softening Treatment on the Quality of Eucalyptus Sliced Veneer Journal of Northeast Forestry University 2017 (8) 61-65

软化处理对桉木刨切单板质量的影响

作  者：
徐煜智;王宝金;沈毅;吴进;冯磊;于浩
单  位：
镇江中福马机械有限公司;南京林业大学
关键词：
桉木;软化处理;喷蒸加热;刨切质量
摘  要：
为改善刨切厚单板质量,减少水热处理时间,采用带实时喷蒸加热功能的刨切试验装置,在冷水浸泡、冷水浸泡再喷蒸加热、水煮软化和水煮软化再喷蒸加热4种条件下对桉木进行刨切试验,刨切厚度为1~6 mm。结果表明:单板表面粗糙度为4.29~14.30μm,随刨切厚度的增加而增加,其中横纹方向表面粗糙度大于顺纹方向,但都能满足GB/T 13010—2006的要求;单板背面裂隙度在刨切厚度为2~6 mm时变化幅度不大。相对于未喷蒸加热的情况,采用实时喷蒸加热刨切的单板横纹表面粗糙度、顺纹表面粗糙度和背面裂隙度的最大降低百分率分别为11.55%、23.12%和28.06%,表明采用实时喷蒸加热处理对改善单板质量效果明显;其中,在水煮软化再喷蒸加热的条件下,刨切单板表面粗糙度和背面裂隙度最小。
译  名：
Effect of Softening Treatment on the Quality of Eucalyptus Sliced Veneer
作  者：
Xu Yuzhi;Wang Baojin;Shen Yi;Wu Jin;Feng Lei;Yu Hao;Nanjing Forestry University;Zhenjiang Zhongfuma Machinery CO.Ltd;
关键词：
Eucalyptus;;Softening treatment;;Steam heating;;Slicing quality
摘  要：
In order to improve the quality of sliced thick veneers and to reduce the hydrothermal treatment time,a veneer slicer with the function of real-time steam injection heating was used for slicing experiment of eucalyptus.This experiment was conducted under the four kinds of softening conditions,namely,soaking in cold water,steam heating after soaking in cold water,water-boiling and steam heating after water-boiling.The surface roughness of veneers were 4.29-14.30μm,and increased gradually with the increase of slicing thickness,the surface roughness perpendicular to grain was larger than that parallel to grain,but all of them could meet GB/T 13010-2006.The change of back clearances tended to be smooth when the slicing thicknesses were 5-6 mm.Compared with the condition of non-steam heating,the quality of veneers sliced with real-time steam heating could be improved obviously,and the maximum reducing percentage of surface roughness perpendicular to and parallel to grain and back clearance were 11.55%,23.12% and 28.06%,respectively.The surface roughness and the back clearance of veneers were both the smallest under steam heating after water-boiling.

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