< Retour PADOUK D`AFRIQUE (Pterocarpus tinctorius) Version imprimable
PADOUK D`AFRIQUE (Pterocarpus tinctorius)
Nom commercial
Padouk d`Afrique
Nom scientifique (avec auteur)
Pterocarpus tinctorius Welw.
Famille
LEGUMINOSAE
Noms communs (pays)
Paduk (Italy); Padoek (Netherlands); Padouk (Germany); Barwood (United Kingdom); Camwood (United Kingdom); African Padauk (United Kingdom); Padauk (United Kingdom); Corail (Belgium); Mongola (Zaire); Mukula (Zaire); N`gula (Zaire); Kisese (Congo); Mbel (Gabon); Mbel (Cameroon); Osun (Nigeria); Nkula (Zaire); Tacula (Angola); Palo rojo (Equatorial Guinea)
Synonymes du nom scientifique (avec auteurs)
Pterocarpus zimmermannii Harms; Pterocarpus velutinus De Wild.; Pterocarpus tinctorius var. macrophyllus Welw. ex Baker; Pterocarpus tinctorius var. odoratus (De Wild.) Hauman; Pterocarpus tinctorius var. chrysothrix (Taub.) Hauman; Pterocarpus odoratus De Wild.; Pterocarpus megalocarpus Harms; Pterocarpus kaessneri Harms; Pterocarpus holtzii Harms; Pterocarpus hockii De Wild.; Pterocarpus delevoyi De Wild.; Pterocarpus chrysothrix Taub.; Pterocarpus cabrae De Wild.; Pterocarpus albopubescens Hauman; Lingoum tinctorium (Welw.) Kuntze
DESCRIPTION DE L'ARBRE
Description botanique
The bole is usually straight and cylindrical, up to 15 m long. It presents low buttresses or no buttresses at all. Log is banned for international trading.(Cameroon)
Habitat naturel
Pterocarpus tinctorius occurs in riparian forests, secondary formations and grass savanna.
IDENTIFICATION DU BOIS
Description anatomique du bois
Vessels per mm2 less than 6 (rare). Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Simple perforation plates. Intervessel pits large, 10 micras or more. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma in marginal or in seemingly marginal bands. Prismatic crystals in short chains in chambered axial parenchyma cells. Two cells per pa Rays exclusively uniseriate. Non-crystals in ray cells. 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
Index de Teinte (1 = Noir, 7 = Jaune clair)
2
Grain
Wavy; special care is needed when machining in order to obtain satisfying quality surface.
Texture
The wood is mostly coarse in texture.
Luster
The wood luster is reported to be rather low.
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 attacks.
Index de durabilité naturelle (1 = Très élevée, 7 = Très faible)
1
Tensions internes de croissance
No residual stresses are reported in this species.
Teneur en silice
Silica Content: Negligible content of silica is reported. Amounts over 0.05% may affect wood processing. Silica Value: 0
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)
0.80
Densité sèche à l'air (poids et volume à 12%TH) (g/cm³)
0.92
Retrait tangentiel total (saturé à 0%TH) (%)
5.2
Retrait radial total (saturé à 0%TH) (%)
3.3
Défauts dus au séchage
Ease of Drying: Drying is very slow and difficult to perform; defects are frequent. Drying Defects: Risks of distortions. Kiln Schedules: Schedule proposed as a reference by comparison with well known species taking into account to the general technological behavior of this species.
Calendrier de séchage en séchoir recommandé
FR-4
Ratio de stabilité dimensionnelle (% retrait tangentiel total/% retrait radial total)
1.6
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)
1064
Rigidité (module d'élasticité_ MOE) 12%TH (kgf/cm²)
190955
Résistance à la compression parallèle à la fibre 12%TH (kgf/cm²)
795
Résistance à la compression perpendiculaire à la fibre 12%TH (kgf/cm²)
115
Résistance au cisaillement (radial) 12%TH (kgf/cm²)
52
Dureté Janka (latérale) 12%TH (kgf)
1063
Dureté Janka (extrémités) 12%TH (kgf)
1098
OUVRABILITÉ
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.
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.
UTILISATIONS
UTILISATIONS FINALES (RÉSUMÉ)
HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, boat hulls, boat deck, port storage, OTHER AND MUSICAL INSTRUMENTS, handicrafts
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
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
Manches de couverts
- 33 - Embassy of Gabon in Japan
Formes à chaussures
- 34 - Embassy of Indonesia in Japan
Carros_camion
- 53 - Timbers of the New World
Wagons
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
CONSTRUCTION NAVALE
- 55 - Tropical Timber Atlas of Latin America
Navires
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Navires_coques
- 57 - Estadísticas de Aprovechamiento, Exportación y comercialización Nacional de Productos Forestales
Navires_ponts
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port entreposage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
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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