SAFUKALA (Dacryodes pubescens)
Nom commercial
Safukala
Nom scientifique (avec auteur)
Dacryodes pubescens H.J.Lam
Famille
BURSERACEAE
Noms communs (pays)
Safucala (France); Safoukala (France); N'safu-nkala (Zaire); Mouganga (Gabon); Safucala (Congo); Safoukala (Angola); N`safu-nkala (Zaire); Safucala (Angola); Safoukala (Congo)
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 40 m, with diameters 130 up to 150 cm. The bole is straight and cylindrical, but relatively short.
Habitat naturel
Dacryodes pubescens is found in rain forests and along rivers.
Répartition naturelle
West Africa
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 150 to 200 micras (medium). Tyloses thin walled. Non-vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits coars Paratracheal axial parenchyma scanty and/or vasicentric. 4 to 10 rays per mm (medium). Rays non-storied. Rays commonly 2 seriate. Silica bodies in the ray cells. Occasionally prismatic crystals in the ray cells. Body ray cells procumbent with one row of upright and/or square marginal cells (Kribs-III). Septate fibers present. Fibers with simple to minutely bordered pits.
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Vue macroscopique du bois (plan tangentiel)
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Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is whitish. The heartwood is pinkish grey buff to pale brown, it is not clearly demarcated. The silver figure is fine.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
Straight or slightly interlocked.
Texture
The wood is reported to be frequently medium textured.
Luster
This species is low in luster.
Durabilité naturelle
Moderately durable to decay. Without preservative treatment, this species can be used only under risk of occasional re-humidification. It is not suited for uses with risks of permanent or long-lasting humidification. Resistant to termites attack. The hear
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
3
Tensions internes de croissance
No growth stresses are reported in this species.
Résistance à l'imprégnation
Difficult to treat with only a low penetration of the preservative products.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.60
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.66
Retrait tangentiel total (saturé à 0%TH) (%)
8.2
Retrait radial total (saturé à 0%TH) (%)
4.9
Défauts dus au séchage
Ease of Drying: Air seasoning of Cordia is reported to be easy without serious defects.
Calendrier de séchage en séchoir recommandé
FR-8
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.7
Calendrier de séchage en séchoir
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIÉTÉS CHIMIQUES DU BOIS
PROPRIÉTÉS MÉCANIQUES DU BOIS
Résistance à la flexion (module de rupture_MOR) 12%TH (kgf/cm²)
1101
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
153350
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
598
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
79
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
111
Dureté Janka (latérale) 12%TH (kgf)
543
Dureté Janka (extrémités) 12%TH (kgf)
644
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Suitable for peeling if treated.
Placage tranche
Suitable for peeling if treated.
Effet d'émoussement
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Usinage
Possible difficulties caused by interlocked grain are reported.
Rabotage
Moderately easy; tools must be cautiously sharpened.
Moulurage
Moderately easy; tools must be cautiously sharpened.
Perçage
Moderately easy; tools must be cautiously sharpened.
Mortaisage
Moderately easy; tools must be cautiously sharpened.
Clouage
Pre-boring is necessary.
Collage
Glues well if basic gluing technical rules are followed.
Ponçage
Easy to perform; it gives good results.
Polissage
Can be polished without surface preparation.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, shutter boards, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, faces, cores, PACKING, heavy packing, pallets, OTHER AND MUSICAL INSTRUMENTS, door core, coffin
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
Pouters
- 11 - Prospect: The wood database
Solives
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Planches
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Planchers
- 14 - Handbook of Hardwoods
Parquets
- 15 - Empire Timbers
Cadres
- 16 - Woods of the World
Marches
- 17 - Tree Conservation Database
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
Accessoires en bois
- 19 - Silica in Timbers
Volets
- 20 - Prospect: The wood database
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Meubles ordinaire
- 23 - Handbook of Hardwoods
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Faces (de placage)
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
âmes (de placage)
- 27 - Embassy of Brazil in Japan
EMBALLAGE
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
Embal_lourd
- 47 - Arvores Brasileiras
Emballage, palettes
- 48 - The strength properties of timbers
âme_porte
- 76 - Descripción General y Anatómica de 105 Maderas del Grupo Andino.
Cercueils
- 78 - Amazonian Timbers for the International Market
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