頁籤選單縮合
題 名 | 單板拼花貼面板之帶式砂光試驗 |
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作 者 | 黃彥三; 陳欣欣; | 書刊名 | 林業試驗所研究報告季刊 |
卷 期 | 7:2 1992.06[民81.06] |
頁 次 | 頁139-148 |
分類號 | 474.1 |
關鍵詞 | 拼花貼面板; 砂光; 帶式; 單板; 試驗; |
語 文 | 中文(Chinese) |
中文摘要 | 單板拼花貼面板在砂光作業時,因砂光方面與木理方向成不同角度, 對砂光品質有不利影響,為家具製造作業上一大困擾。本研究以家具業使用最多 的紅橡木單板拼花貼面板為試材,利用帶式砂光機之壓板 (platen)進行平面砂 光,以觸針式粗糙度計測定砂光面平行木理與垂直木理方向之平均粗糙度,同時 以FFT頻譜分析儀分析砂光面之剖面波形。所得結果如下: 1.砂光面粗糙度隨砂帶粒號之增加而減少,但在#180以上時,改善之程度趨於緩 和,小於#180時則粗糙度顯著增大,故實用上至少應使用#180以上砂帶進行壓 板之砂光作業。 2.非環孔區之砂光面粗糙度主要受砂痕之支配,垂直砂痕方向之粗糙度測值遠大 於平行砂痕方向者。 3.環孔部位對表面粗糙度具決定性之影響作用,且環孔深凹部分組織上的粗糙度 無法利用砂光作業加以消除。 4.波長分析之結果顯示,環孔區在頻譜之低頻部位(<1HZ,波長>0.25 mm) 出現 極大波峰,非環孔區之頻譜分析亦顯示砂光面粗糙度隨使用砂帶粒號之增加而減 小。 |
英文摘要 | Sanding of parquetted veneer-overlay boards is often a troublesome problem in furniture manufacturing, because the varied angle between sanding direction and wood grain can result in unacceptable sanding scratches. In this study, red oak veneer parquets were belt-sanded with a platen. The roughness of sanded surfaces were measured by a stylus type roughness meter both along grain and across grain directions. The profile curves of the measured surfaces were analyzed by a FFT spectrum analyzer. The results obtained are concluded as follows: 1.The roughness of sanded surface decreased with increasing grit number of the sand paper. The improvement of surface roughness was lessened when abrasive grits finer than #180 were used. In practice, grit number of #180 or finer should be used in the sanding operation. 2.The roughness of surface at non-ring-porous region was dominated by sanding scratches. The roughness vaules measured across the scratches were greater than those measured along them. 3.The ring-porous regions affected the roughness of the sanded surfaces decisively and this sturctural roughness could not be deleted by sanding. 4.The specturm analysis of surface profiles indicates that the presence of maximum peaks at low frequency (<1HZ, wave length> 0.25mm) was related to ring pores. The analysis at non-ring-porous region also indicates that the surface roughness decreased with finer abrasive grits used in sanding. |
本系統中英文摘要資訊取自各篇刊載內容。