云杉木材表面砂光参数优化

Optimization of the Sanding Parameters for Picea asperata Mast.Surface Based on Orthogonal Test

通过安排1次正交试验和1次单因素试验,分析砂光参数对云杉木材表面粗糙度的影响,结果表明:砂带粒度对云杉木材表面粗糙度有显著影响,进给速度和砂光量的影响不显著;第1次砂光用砂带粒度150目,进给速度7 m/min,砂光量0.6 mm,可获得最小的表面粗糙度,其最终表面粗糙度Ra为2.51μm;把上述理论优方案中的进给速度改为9 m/min,可提高生产效率,获得工程优化方案,其表面粗糙度Ra为2.59μm。第2次单因素试验用砂带粒度240目,进给速度9 m/min,砂光量0.2 mm,可获得工程优化方案,其最终表面粗糙度Ra为2.31μm。

In order to analyze the relations between the surface roughness of Picea asperata Mast.plantation and the sanding parameters,one orthogonal test and one single factor test were performed.The results showed that the surface roughness of Picea asperata Mast.plantation was significantly influenced by the mesh of sandpaper,but insignificantly influenced by the feed speed and sanding thickness;when the mesh of the sandpaper was 150,the feed speed was 7 m/min and sanding thickness was 0.6 mm in the orthogonal test,a theory optimization scheme was obtained and the surface roughness（Ra） can reach 2.51 μm.Considering the production efficiency,the engineering optimization scheme can be got by changing feed speed into 9 m/min in the theory optimization scheme and the surface roughness can reach 2.59 μm.When the mesh of sandpaper was 240,the feed speed was 9 m/min and sanding thickness was 0.2 mm in the single factor test,an engineering optimization scheme can be obtained and the surface roughness（Ra） can reach 2.31 μm.