摘要
为了能够优化竹筒剖分工艺,提高竹材利用率,本文建立了竹片剖分的数学模型,分析了影响竹片尺寸和材料利用率的因素及其作用原理。结果表明:切削弧度、加工余量及竹筒直径对矩形竹片出材率有影响显著,考虑加工余量时,存在着最优的切削弧度值使材料利用率最大,且加工余量越大,最优切削弧度值越大;竹筒直径越大,最优切削弧度值越小,但最优弧度值的范围相对集中。竹筒直径小于80 mm时,材料利用率偏低,已不再适合采用加工成矩形竹片形式进行竹材利用。在实际生产中应根据矩形竹片的大小,以出材率为评定参考依据,确定所需圆竹的直径和相应的切削弧度。
In order to optimize the cutting process and raise the utility ratio of bamboo, an optimal mathematic model for lengthwise cutting bamboo tube to prepare rectangle strip was put forward. The effecting factors and acting mechanisms to bamboo strip desired dimension and bamboo utilization ratio were studied. The results show that the cutting angle, cutting allowance and tube diameter had significant effects to utility ratio of bamboo; the optimal cutting arc angle made best use of the raw materials considering the cutting allowance, furthermore, the more the cutting allowance, the bigger the optimal cutting arc angle; and the more the bamboo tube diameter, the smaller optimal cutting arc angle, the optimal cutting arc values were gathered within a small interval. If bamboo tube diameter is less than 80 mm, the utility ratio of bamboo was lower, so the cutting method of rectangular strip do not adequate for production of rectangular strip. It is also supposed that you should determine the raw bamboo diameter and cutting arc angle according to desired bamboo strip dimension and taking outtum rate of raw bamboo into account.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第11期177-180,共4页
Journal of Central South University of Forestry & Technology
基金
国家林业公益性行业专项(201004005)
关键词
矩形竹片
竹材
剖分工艺
优化模型
rectangle strip
bamboo wood
cutting process
optimization model
