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All Journal Jurnal Penelitian Hasil Hutan Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan
Dede Rohadi
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Materials Science & Nanotechnology

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PENGARUH POLA PENGGERGAJIAN DAN SUDUT SAYAT TERHADAP RENDEMEN DAN PRODUKTIVITAS PENGGERGAJIAN KAYU NIBUNG (ONCOSPERMA TIGILLARIUM) Osly Rachman; Dede Rohadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.1.31-34

Abstract

Nibung (Oncosperma  tigillarium) is a member of palm family which has a good potential for  utilization. An experiment to find out the best sawing pattern and hook angle of saw blade for  better recovery and sawing productivity was conducted. Two sawing patterns (live sawing and sawing around)  and two hook  angles (20 and 27 degrees were applied).The results indicated that sawing around pattern produced higher recovery of hard and medium  wood than live sawing as much as 8%, while the 27° of  hook  angle produced higher productivity than 20°  angle as much  as 0.30  m2/min.
PENGARUH POLA PENGGERGAJIAN DAN SUDUT SAYAT TERHADAP RENDEMEN DAN PRODUKTIVITAS PENGGERGAJIAN KAYU NIBUNG (ONCOSPERMA TIGILLARIUM) Osly Rachman; Dede Rohadi
Jurnal Penelitian Hasil Hutan Vol 4, No 1 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.1.31-34

Abstract

Nibung (Oncosperma  tigillarium) is a member of palm family which has a good potential for  utilization. An experiment to find out the best sawing pattern and hook angle of saw blade for  better recovery and sawing productivity was conducted. Two sawing patterns (live sawing and sawing around)  and two hook  angles (20 and 27 degrees were applied).The results indicated that sawing around pattern produced higher recovery of hard and medium  wood than live sawing as much as 8%, while the 27° of  hook  angle produced higher productivity than 20°  angle as much  as 0.30  m2/min.
The Alleviation of Discoloration in Teak (Tectona grandis L.f.) Wood Through Drying and Chemical Treatments Efrida Basri; Dede Rohadi; Trisna Priadi; Imam Wahyudi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.368 KB) | DOI: 10.51850/jitkt.v2i1.322

Abstract

Teak wood  is well known as one of the important wood species from Indonesia. The properties of this wood are quite good and delighted by many people. However, the wood processing may cause discoloration on some pieces or boards of this wood. This degrades the wood performance. The wood surface is slightly darkened. Dark-brown streaks often arise distinctly on the brown color of wood surface. Moreover, when the kiln-dried wood is re-exposed in the further process with a planner or a molder, the discoloration may still exist. The aim of this study was to find out an appropriate technique to alleviate discoloration on  teak wood. The result showed that drying temperature was the most important factor in the discoloration of teak wood. Among chemical treatments in this experiment, the use of 3% Na2SO3 solution was the most effective way to alleviate discoloration on teak wood
Co-Authors Efrida Basri Imam Wahyudi Indrawan, Imam Wahyudi Osly Rachman Trisna PRIADI