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CORDIA D`AFRIQUE (Cordia platythyrsa)
Nom commercial
Cordia d`Afrique
Nom scientifique (avec auteur)
Cordia platythyrsa Bak.
Famille
BORAGINACEAE
Noms communs (pays)
Omo (Nigeria); Ebe (Gabon); African cordia (Germany); African cordia (United Kingdom); Ebais (Gabon); Ebais (Cameroon); Ebe (Cameroon); Mukumari (Kenya); Mugoma (Kenya); Mukebu (Uganda); Sumba (Zaire); Bon (Côte d`Ivoire); Cordia d`Afrique
Synonymes du nom scientifique (avec auteurs)
Cordia irvingii Baker pro parte; Cordia candidissima A. Chev.
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 20 to 32 m. The bole is cylindrical but rarely straight, 10 to 13 m in length. The trunk attains about 100 cm in diameter above the buttresses.
Habitat naturel
Cordia platythyrsa is a timber species occurring in closed forest and old secondary formations. It regenerates well in disturbed forest.
Répartition naturelle
Widely distributed in tropical Africa, from Sierra Leone to Gabon and Central Africa.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Vessel clusters common. Tangential diameter of vessel lumina 200 micras or more (large). Tyloses thin walled. Non-vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plate Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma in thick bands. Occasionally axial parenchyma storied. Crystal sand in axial parenchyma cells. Two cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Larger rays more than 4 seriate. Prismatic crystals in the ray cells. Heterogeneous rays and/or multiseriate heterogeneous rays. Non-septate fibers. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The heartwood is from pale golden brown to brown, occasionally pinkish brown, it is sometimes not clearly demarcated. The silver figure is medium.
Index de Teinte (1 = Noir, 7 = Jaune clair)
4
Grain
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Texture
This wood has a somewhat coarse texture.
Luster
The surface of the wood is naturally moderate in luster.
Durabilité naturelle
Durable to decay; this species can be utilized without preservative treatment for exterior joinery or similar uses. Resistant to termites attack. Heartwood is resistant to Lyctus attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
1
Tensions internes de croissance
Residual stresses are reported to be absent.
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)
0.39
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.41
Défauts dus au séchage
Kiln Schedules: Based on its low density and air drying properties, terentang timber can be kiln dried using red meranti (F) or jeludong (H) kiln drying schedules.
Calendrier de séchage en séchoir recommandé
FR-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)
740
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
387
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
44
Dureté Janka (latérale) 12%TH (kgf)
204
Dureté Janka (extrémités) 12%TH (kgf)
295
OUVRABILITÉ
Sciage
It is easy to saw.
Coupe de placage de déroulage
Suitable for slicing.
Placage tranche
Suitable for slicing.
Effet d'émoussement
Slight blunting effect; ordinary tools can be used for sawing and machining.
Usinage
Machining of this species is reportedly easy.
Rabotage
Easy; no particular problems.
Moulurage
Easy; no particular problems.
Tournage
30
Perçage
Easy; no particular problems.
Mortaisage
Easy; no particular problems.
Clouage
No particular problem.
Collage
Glues well if basic gluing technical rules are followed.
Ponçage
Easy to perform; it gives good results.
Polissage
Needs pre-coating.
Compatibilité avec outils manuels
No particular problems.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, boards, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
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 luxe
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Armoires
- 24 - Empire Timbers
PANNEAUX ET PLACAGE
- 25 - Directory of Timber Trade Malaysia
Placage tranché
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Tournage
- 30 - Embassy of Honduras in Japan
Ornements
- 31 - Embassy of Colombia in Japan
Ornements
- 32 - Embassy of Cote d`Ivoire in Japan
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