ONZABILI (Antrocaryon klaineanum)
Nom commercial
Onzabili
Nom scientifique (avec auteur)
Antrocaryon klaineanum Pierre
Famille
ANACARDIACEAE
Noms communs (pays)
Akoua (Côte d`Ivoire); N'gongo (Congo); N'gongo (Angola); Mongongo (Portugal); Aprokuma (Ghana); N`gongo (Angola); Mugongo (Zaire); Onzabili (Gabon); Anguekong (Equatorial Guinea); Angonga (Cameroon)
Synonymes du nom scientifique (avec auteurs)
Spondias soyauxii Engl.; Antrocaryon soyauxii (Engler) Engl.; Antrocaryon soyauxii (Engl.) Engl.
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 50 m, with a straight, unbuttressed, cylindrical bole clear to 26 to 30 m. Trunk diameter attains from 70 to 200 cm.
Habitat naturel
Antrocaryon klaineanum occurs mainly in secondary forests and coastal areas.
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 simil Paratracheal axial parenchyma scanty and/or vasicentric. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells (Kribs-II). Septate fibers present. Fibers with simple to minutely bordered pits.
-
Vue macroscopique du bois (plan radiale)
-
Vue microscopique d'une section transversale du bois
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is greyish white. The heartwood is pinkish white to red brown, it is hardly demarcated from heartwood. The silver figure is fine.
Index de Teinte (1 = Noir, 7 = Jaune clair)
5
Grain
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Texture
The wood is mostly medium in texture.
Luster
This wood is commonly of low luster.
Durabilité naturelle
Not durable; important risks of decay attacks at any processing step, from logs up to final products. It must receive preservative treatment. Sensible to termites attack. Heartwood is sensible to Lyctus attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
5
Tensions internes de croissance
Residual growth stresses are absent.
Teneur en silice
Silica Content: Negligible content of silica is reported. Amounts over 0.05% may affect wood processing. Silica Value: 0.01
Résistance à l'imprégnation
Moderately easy to treat with a partial penetration of the preservative products.
PROPRIÉTÉS PHYSIQUES DU BOIS
Densité basale ou gravité spécifique (poids anhydre/vol. saturé) (g/cm³)
0.51
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.56
Retrait tangentiel total (saturé à 0%TH) (%)
6.8
Retrait radial total (saturé à 0%TH) (%)
4.6
Défauts dus au séchage
Ease of Drying: Drying is moderately easy; some particular care is needed. Drying Defects: Risks of discoloration caused by decay Kiln Schedules: The kiln schedule has been tested.
Calendrier de séchage en séchoir recommandé
FR-8
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.5
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)
738
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
137332
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
380
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
43
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
70
Dureté Janka (latérale) 12%TH (kgf)
385
Dureté Janka (extrémités) 12%TH (kgf)
490
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Suitable for slicing, also suitable for peeling if treated.
Placage tranche
Suitable for slicing, also suitable for peeling if treated.
Effet d'émoussement
Slight blunting effect; ordinary tools can be used for sawing and machining.
Usinage
Machining of this species is reportedly easy.
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
No particular problem.
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.
Cintrage à la vapeur
This species can be used for steam bending.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, beams, joists, boards, frames, steps, panelling, fittings, FURNITURE AND CABINETS, common furniture, PLYWOOD AND VENEER, faces, cores, common veneer, PACKING, heavy packing, pallets, OTHER AND MUSICAL INSTRUMENTS, door core, coffin, moldings
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
Cadres
- 16 - Woods of the World
Marches
- 17 - Tree Conservation Database
Panneaux
- 18 - W3TROPICOS Missouri Botanical Garden
Accessoires en bois
- 19 - Silica in Timbers
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
Placage ordinaire
- 29 - Embassy of Ecuador 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
Moulures
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
Please Provide Information To View Producer Information