OVENGKOL (Guibourtia ehie)
Nombre comercial
Ovengkol
Nombre científico (con autor)
Guibourtia ehie J.Leon.
Familia
LEGUMINOSAE
Nombres Comunes
Amazakoué (Côte d`Ivoire); Mozambique (United States of America); Amazoue (Côte d`Ivoire); Ehie (Ghana); Mozambque (United States of America); Palissandro (Equatorial Guinea); Ovengkol (Gabon); Anokye (Ghana); Hyeduanini (Ghana); Ovangkol
Nombres científicos sinónimos (con autores)
Copaifera ehie A. Chev.
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The tree reaches a height of 40 m. The bole is occasionally fluted. The trunk diameter attains 120 cm.
Hábitat natural
Guibourtia ehie occurs in moderate densities in different forest types, from closed rain forest to drier semi-deciduous forest. It prefers swampy and periodically inundated forests. It is known or inferred that the harvesting of specimens from the wild fo
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 100 to 150 micras (small). Vestured pits. Vessels per mm2 6 to 10 (medium). Simple perforation plates. Vessel-ray pits similar to intervessel pits in Axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma lozenge-aliform. Axial parenchyma aliform. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 ce 4 to 10 rays per mm (medium). Rays non-storied. Larger rays more than 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
-
Foto macroscópica de la madera, plano tangencial
-
Foto microscópica sección transversal de la madera
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Color
The sapwood is greyish white, it has a thickness of 4 to 7 cm. The heartwood is yellow brown to dark brown, it is clearly demarcated. The silver figure is slightly lustrous.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
It has highly interlocked grain.
Veta
The texture is typically fine to medium.
Brillo
This species is moderate in luster.
Durabilidad Natural
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.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
1
Internal growth stresses
Residual growth stresses are absent.
Contenido de sílice
Silica Content: Negligible content of silica is reported. Amounts over 0.05% may affect wood processing. Silica Value: 0
Dificultad para impregnar
Difficult to treat with only a low penetration of the preservative products.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.73
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.82
Contracción Tangencial Total (Saturado hasta anhidro) (%)
8.0
Contracción Radial Total (Saturado hasta anhidro) (%)
3.9
Calendario de Secado
FR-9
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
2.0
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1296
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
218862
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
705
Resistencia a la compresión perpendicular a la fibra CH12% (kgf/cm²)
98
Cizallamiento radial CH12% (kgf/cm²)
115
Dureza Janka (lados) CH12% (kgf)
845
Dureza Janka (extremos) CH12% (kgf)
914
TRABAJABILIDAD
Aserrado
Sawing of this species requires powerful equipment.
Corte de chapa rotativa
Suitable for slicing.
Chapa tranchada
Suitable for slicing.
Pérdida de filo_romado
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Maquinado general
It needs powerful tools for processing. Possible difficulties caused by interlocked grain are reported.
Cepillado
Moderately easy; tools must be cautiously sharpened.
Moldurado
Rather difficult; special tools are needed.
Torneado
30
Taladrado
Rather difficult; special tools are needed.
Escopleado, caja y espiga
Rather difficult; special tools are needed.
Clavado
Pre-boring is necessary.
Encolado
Difficult to glue because of high density.
Lijado
Easy to perform; it gives good results.
Sacar lustre
Can be polished without surface preparation.
Facilidad para herramientas manuales
Working with hand tools is difficult.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, cutlery, lasts, OTHER AND MUSICAL INSTRUMENTS, handicrafts
VIVIENDA GENERAL
- 10 - Silica in Timbers
Tablas
- 13 - Dry kiln schedules for commercial woods. Temperate and tropical. Section III. Latin American (Mexico, Central, and South America) Woods–Conventional Temperatures
Pisos
- 14 - Handbook of Hardwoods
Parquet
- 15 - Empire Timbers
Marcos
- 16 - Woods of the World
Peldaños
- 17 - Tree Conservation Database
Paneles
- 18 - W3TROPICOS Missouri Botanical Garden
Accesorios de madera
- 19 - Silica in Timbers
MUEBLES Y GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Muebles finos
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Gabinetes
- 24 - Empire Timbers
TABLEROS Y CHAPAS
- 25 - Directory of Timber Trade Malaysia
chapa decorativa
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneado
- 30 - Embassy of Honduras in Japan
artículos torneados
- 31 - Embassy of Colombia in Japan
Artículos torneados
- 32 - Embassy of Cote d`Ivoire in Japan
mangos de cuchillos
- 33 - Embassy of Gabon in Japan
Hormas zapato
- 34 - Embassy of Indonesia in Japan
OTROS E INSTRUMENTOS MUSICALES
- 63 - Madeiras do Brazil II
artesanía
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Please Provide Information To View Producer Information