高频真空干燥中压缩载荷对落叶松长方形髓心方材表面裂纹的影响

被引：1

作者：

李成元

李传信

机构：

[1] 北华大学

来源：

林产工业 | 2011年 / 38卷 / 01期

关键词：

长方形方材; 压缩载荷; 表面裂纹;

D O I：

10.19531/j.issn1001-5299.2011.01.005

中图分类号：

TS664.1 [木家具];

学科分类号：

0829 ; 082902 ;

摘要：

探究了高频真空干燥中压缩载荷对有纵向槽的落叶松长方形髓心方材表面裂纹的影响。研究结果如下:与正方形方材相比,由于压缩载荷作用和长方形方材宽度的增加,长方形方材宽度与厚度干缩率比大大减少了;因为高频加热和干缩差异应力的减少,长方形方材表面裂纹减少了许多,尤其没有纵向槽的长方形方材表面裂纹明显减少。

引用

页码：21 / 24+27 +27

页数：5

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