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VEN (Pterocarpus erinaceus)
Nom commercial
Ven
Nom scientifique (avec auteur)
Pterocarpus erinaceus Poir.
Famille
LEGUMINOSAE
Noms communs (pays)
Vene (Senegal); Ven (Senegal); Vene (Nigeria); Vene (Mali); Ven (Mali); Goni (Mali); Pau sangue (Guinea-Bissau); Vene (Guinea); Ven (Guinea); Guenin (Burkina Faso); Goni (Burkina Faso); Pau sangue (Equatorial Guinea); Ven
Synonymes du nom scientifique (avec auteurs)
Pterocarpus africanus Hook. in W. Gray
DESCRIPTION DE L'ARBRE
Description botanique
The tree reaches a height of 23 m. Older trees are reported to be buttressed. The trunk diameter attains 100 cm.
Habitat naturel
Pterocarpus erinaceus is common and widely distributed in the savanna forests and open country. Occasionally found on shallow soil.
IDENTIFICATION DU BOIS
Description anatomique du bois
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits similar to intervessel pits i Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma storied. Prismatic crystals in short chains in chambered axial parenchy Rays storied. Rays exclusively uniseriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
Disponibilité
Statut CITES
Unrestricted
DESCRIPTION GÉNÉRALE DU BOIS
Teinte
The sapwood is yellow or pale cream, it has a thickness of 5 cm. The heartwood is red-brown or rose-red, it is clearly demarcated.
Grain
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Texture
The wood is mostly coarse in texture.
Luster
The surface of the wood is naturally low in luster.
Durabilité naturelle
Very durable to decay; without preservative treatment. This species is especially suited for all the uses with risks of permanent or long-lasting humidification. 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
No residual growth stresses are found.
Teneur en silice
Silica Content: This timber is reported to have a negligible silica content. Silica contents 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)
0.78
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.89
Retrait tangentiel total (saturé à 0%TH) (%)
5.9
Retrait radial total (saturé à 0%TH) (%)
3.2
Défauts dus au séchage
Ease of Drying: Drying is moderately easy; some particular care is needed. Drying Defects: Risks of checks. Kiln Schedules: The kiln schedule has been tested.
Calendrier de séchage en séchoir recommandé
FR-7
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.9
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)
1329
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
158723
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
774
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
111
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
89
Dureté Janka (latérale) 12%TH (kgf)
989
Dureté Janka (extrémités) 12%TH (kgf)
1037
OUVRABILITÉ
Sciage
Sawing of this species requires powerful equipment.
Coupe de placage de déroulage
Suitable for slicing.
Placage tranche
Suitable for slicing.
Effet d'émoussement
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Usinage
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Rabotage
Moderately easy; tools must be cautiously sharpened.
Moulurage
Easy; no particular problems.
Tournage
30
Perçage
Easy; no particular problems.
Mortaisage
Easy; no particular problems.
Clouage
Pre-boring is necessary.
Collage
Difficult to glue because of the extracts content.
Ponçage
Easy to perform; it gives good results.
Polissage
Needs pre-coating.
Compatibilité avec outils manuels
Working with hand tools is difficult.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
EXTERIOR GENERAL, paling, HOUSING GENERAL, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, cabinets, TURNING, ornaments, OTHER AND MUSICAL INSTRUMENTS, handicrafts
EXTERIOR GENERAL
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Pieux de cloture
- 4 - Estudo dendrologico e determinacao das caracteristicas fisicas e mecanicas da bicuiba
MEUBLES ET M. DE RANGEMENT
- 10 - Silica in Timbers
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
MEUBLES ET M. DE RANGEMENT
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Armoires
- 24 - Empire Timbers
Tournage
- 30 - Embassy of Honduras in Japan
Ornements
- 31 - Embassy of Colombia in Japan
Artisanat
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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