竹片质量对竹帘胶合板静曲强度与弹性模量的影响  

Quality of pieces for bamboo curtain plywood using MOR and MOE

作　　者：王琮琮[1] 钱俊[1] 

机构地区：[1]浙江农林大学工程学院,浙江临安311300

出　　处：《浙江农林大学学报》2014年第5期758-763,共6页Journal of Zhejiang A&F University

摘　　要：采用不同质量的竹片(竹篾),按产品特定的结构与工艺要求,制造用于车箱底板的32.0 mm竹帘胶合板。通过对其纵向静曲强度与弹性模量的测试与分析,研究制造车箱底板用的竹片(竹篾)的质量优化方案。结果表明:1竹片厚度误差、不规则弯曲程度越小,表面质量越好,缺陷越少,产品的纵向静曲强度与弹性模量越高;2厚度误差小于0.2 mm的A类竹片制成的竹帘胶合板,其静曲强度与弹性模量达到较高值,分别为124.5 MPa和7 468.3 MPa;3竹片厚度误差与表面质量对竹帘胶合板强度影响显著,竹片质量较好的A类竹片制成的竹帘胶合板的静曲强度为竹片质量一般的E类竹片制成的竹帘胶合板静曲强度的3倍,弹性模量则提高了45%。To find the optimize scheme of bamboo piece quality for specific product, making 32 mm bamboo curtain plywood by using different quality of bamboo pieces. Comparisons and analyses of their longitudinal modulus of rupture （MOR） and modulus of elasticity （MOR） were conducted. Results for the range of compar- isons showed： 1 ） A smaller thickness error and higher surface quality of bamboo pieces significantly increased the strength of bamboo curtain plywood; 2） The smaller the thickness error, defect, and degree of irregular bending, and the better the surface quality; the higher the numerical value of the longitudinal Mo, and Mos; 3） With thickness error 〈0.2 mm, longitudinal MOR and MOE were greatest： MOR=124.5 MPa and MOE =7 468.3 MPa. It means that high-precision bamboo split machine is necessary to make high quality of bamboo pieces in order to improve the performance of the bamboo curtain plywood.[Ch, 13 fig. 3 tab. 12 ref]

关 键 词：木材科学与技术 竹帘胶合板 竹片质量 静曲强度 弹性模量 

分 类 号：S781.65[农业科学—木材科学与技术]