帶式砂光機之砂磨試驗

Studies on Wide Belt Sanding of Wood

陳欣欣(Shin-Shin Chen) ； 黃彥三(Yan-San Huang)

《林業試驗所研究報告季刊》 3卷3期 (1988/09) Pp. 147-159

https://doi.org/10.7075/BTFRI.198809.0147

摘要

本研究乃探討不同之砂紙粒度、砂磨送材速度對材面之影響。試材選用拉敏、橡膠木，先以自動鉋機鉋削，再以#80、#100、#120、#150、#180、五種粒號砂紙，5m/min，7.5/min，10m/min三種送材速度加以砂磨。試驗結果如下：
1.試材經鉋削後，材面光滑，但卻留有刀痕，唯刀痕經過一次砂磨後，即可將之消除。
2.試材經砂磨後，材面平整，且具有厚度規制之效果，但原來光滑之鉋削面卻出現起毛現象。
3.砂磨時砂紙愈細(#180)，送材度愈慢(5m/min)，材面狀態最佳，砂紙粗(#80)，送材速度快(10m/min)，材面狀態最差；然而砂紙粒度較粗而送材速度較慢者，其材面粗糙度與砂紙粒度較細，送材速度較快者相近，因此視實際需要，將砂紙粒度與砂磨送材速度適當配合，可産生較佳之砂磨效果。
4.砂痕及木理清晰度在樹種間之差異不大，而起毛程度在樹種間差異明顯，拉敏起毛較不嚴重，而橡膠木起毛較嚴重。

關鍵字

砂磨 ； 起毛 ； 砂痕 ； 粗糙度 ； 拉敏 ； 橡膠木 ； 接觸輪

並列摘要

The purpose of this study is to investigate the effect on the wood surface by different grit of sand paper and feed speed of sanding machine.
Ramin and Rubberwood were used in this study. They were planed through single surface planer and then sanded by #80, #100, #120, #150, and #180 grit sand paper individually with Feed speed of sanding machine at 5m/min, 7.5m/min, and 10m/min.
The major results of this experiment were:
1. The knife marks normally occurred at wood surface after planing. The knife marks was sanded off, however, by one sanding.
2. The wood thickness was adjusted and corrected by sanding, but the wood surface became somewhat fuzzy.
3. The best sanding results were obtained by using #180 sand paper at 5m/min feed speed; that is, to use the finest sand paper at a slower feeding speed. On the contrary, a coarser sand paper associated with a faster feed speed would decrease the surface quality of sanding operation. In fact how to get the best sanding effect is depending on the economical and flexible choice of grit of sand paper and feed speed.
4. On sanding at the same condition, the scratch on wood surface and the clearance of grain were not significantly different between Ramin and Rubberwood. Rubberwood showed much more severe fuzzy surface than Ramin, however.

並列關鍵字

sanding ； fuzzy ； scratch ； roughness ； Ramin ； Rubberwood ； contact roller