共查询到19条相似文献,搜索用时 140 毫秒
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在人造板生产中,板面砂光工序是必不可少的。客户选板时基本上都是“一看,二摸,三测尺寸精度”,板面质量差的板自然不受客户喜爱,因此,砂光质量的优劣直接影响着销售。本文将阐述如何更科学地和更经济地控制好相关的生产工艺参数,增加缺陷修整精砂光工序,以实现降低成本和提高产品合格率的目的。 相似文献
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中密度纤维板是板式家具生产中主要原材料,其厚度偏差对家具的质量有影响,同样对设计生产工艺流程也有重要影响.通过测定板材厚度,分析砂光前后厚度偏差的变化情况发现,砂光前板材厚度偏差大,厚度变化曲线波动明显;砂光后,厚度偏差较小,厚度变化波动平稳.经过分析板式家具贴面影响因素,证明板面砂光处理是解决板材厚度偏差和保证板式家具贴面或涂饰质量的一道重要工序. 相似文献
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中密度纤维板砂光的主要故障分析与排除福州人造板厂梁亚仁福州人造板厂是国有大型现代化人造板企业,主要生产中密度纤维板。第一条生产线是1980年从美国引进的,当时配套的砂光设备是一台美国Kimwood公司制造的四头宽带砂光机。为了提高砂光质量,1990年... 相似文献
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人造板生产过程中,导热油炉燃烧砂光粉可减少粉尘污染,同时为生产提供热源。本文重点介绍了导热油炉燃烧砂光粉的砂光粉输送要求和喷燃技术。 相似文献
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概述了近年来磨削技术及理论研究的最新进展,其中包括磨削机理、磨削力建模和磨削力研究方法,还介绍了几种典型的木材磨削力实验研究的方法,以及个别材种的最佳磨削加工条件. 相似文献
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用条状刷式砂光方式对木材进行砂光实验,以加工工件表面粗糙度为优化目标,利用田口法对砂带目数、条状刷式砂轮转速、进给速度、理论接触长度、砂光次数等砂光参数进行优化,再根据试验得出多个因素不同水平的平均表面粗糙度和信噪比(S/N),利用SPSS软件进行实验结果分析,研究各砂光参数对表面粗糙度影响的显著性,得出最优砂光参数组合,并对此最优砂光参数组合进行了实验验证。 相似文献
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To evaluate the influence of the sanding tool on wear during machining of spruce, rotating abrasive coated disks and beltsanders were tested. The sanding conditions were approximately the same. With flexible sanding tools tool-life was shorter. There was no correlation between tool-life and the area of abrasives. The abrasive wore by adhesion of wooden dust particles. The tips were abraded. The number of active cutting edges was in this case significant. By the measurement of parameters for the scattered grid the number of active cutting edges was calculated. 相似文献
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通过选择工艺路线、工艺装备、膨化剂、柔软剂,膨化柔软干砂时间、烘燥方式及准备方法等诸方面的试验,分析研究了各种试验对真丝电力纺的砂洗效果和产品质量的影响,并测试了表观厚度、膨松度、平方米克重、悬垂系数、摩擦系数,缩率等体现砂洗效果的主要物理指标,从而选择了最佳工艺路线及工艺条件,为生产提供了合理的真丝电力纺“仿桃皮”(砂洗)整理工艺. 相似文献
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The abrasive sanding process is the most labor-intensive operation in the Rubberwood furniture manufacturing industry. Although the machining properties of Rubberwood (Hevea brasiliensis) are well established, information on its abrasive sanding characteristics is sparse. This study was carried out to establish the optimal abrasive sanding regime for Rubberwood. The results suggest that the abrasive sanding process can be optimized when well machine-planed Rubberwood stocks are used. Further, it was found that when the machine surface quality was good, abrasive sanding with a two-level sequence of grit sizes was sufficient to produce an acceptable surface smoothness. The improved surface smoothness also minimized the coating film spread on the wood surface. This finding will serve as a useful benchmark for machine-planing and abrasive sanding processes in the high-volume Rubberwood furniture manufacturing industry. 相似文献
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A series of abrasive papers were used to sand machined regrowth karri (Eucalyptus diversicolor) and regrowth jarrah (E. marginata) wood surfaces. Shear test specimens were then prepared by gluing sanded wood blocks with resorcinol-formaldehyde and pressing them at 1500 kPa and 20°C for 7 hours. Wettability measurements on sanded wood surfaces and strength tests on shear test specimens were used to assess the ability of the sanding treatment to improve adhesive performance. The effect of sanding on wettability and shear strength varied according to the abrasiveness of the sanding treatment. Application of the coarsest abrasive (80 grit) significantly improved wettability and shear (adhesive) strength in both dry and wet conditions. A positive correlation between wettability and shear strength occurred only after sanding. SEM observations revealed different morphological structures of the glueline in sanded and non-sanded surfaces. 相似文献