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TANIMBUCA (Buchenavia huberi)
Nombre comercial
Tanimbuca
Nombre científico (con autor)
Buchenavia huberi Ducke
Familia
COMBRETACEAE
Nombres Comunes
Tanimbuca (Brazil)
Nombres científicos sinónimos (con autores)
Buchenavia grandis Ducke
DESCRIPCIÓN DEL ÁRBOL
Descripción botánica
The commercial lengths are reported to vary from 8 to 19 m, with a diameter of 60 cm in the average. The logs are straight and cylindrical, with buttresses up to 4 m tall.
Distribución natural
B. huberi is found in the Brazilian Amazonia, it is reported in the Tapajos National Forest in the Para state.
IDENTIFICACIÓN DE LA MADERA
Descripción anatómica de la madera
Wood diffuse porous. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 150 to 200 micras (medium). Occasionally tyloses common. Vestured pits. Vessels per mm2 10 to 20 (abundant). Vessels per mm2 less than 6 (rare). Simple perf Occasionally axial parenchyma in marginal or in seemingly marginal bands. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Prismatic crystals in non-chambered axial parenchyma cells. Styloids and/or Rays more than 10 per mm (abundant). Rays exclusively uniseriate. Crystal sand in ray cells. Prismatic crystals in the ray cells. Prismatic crystals in the ray cells. Occasionally heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumb Fibers with simple to minutely bordered pits.
Disponibilidad
Status de protección por CITES
Unrestricted
DESCRIPCIÓN GENERAL DE LA MADERA
Olor
It has a mild scent while green, but it disappears after drying.
Color
Heartwood and sapwood are indistinct. The wood is light brown to yellowish brown.
Indice de Color (1= Negro, violeta; 7= Amarillo claro, blanco)
4
Grano
The wood grain is straight to interlocked.
Veta
This species is reported to have a fine to medium texture.
Brillo
The wood is described as moderate in luster.
Durabilidad Natural
It is rated as moderately resistant against fungi, but highly resistant against termites. It has low resistance to marine borers.
Indice de Durabilidad Natural (1=Muy alta, 7=Muy baja)
3
Dificultad para impregnar
The heartwood and sapwood are moderately easy to preserve, with irregular penetration.
PROPIEDADES FÍSICAS DE LA MADERA
Densidad Básica (Peso anhidro/Vol. saturado) (g/cm³)
0.79
Densidad seca al aire (Peso y volúmen CH12%) (g/cm³)
0.90
Contracción Tangencial Total (Saturado hasta anhidro) (%)
9.1
Contracción Radial Total (Saturado hasta anhidro) (%)
6.0
Defectos por secado
Ease of Drying: It is reported to dry rapidly. Drying Defects: Slight risk of cupping, twisting and checking. Casehardening is also reported. Kiln Schedules: Slow drying recommended.
Estabilidad Dimensional (Contracción Total Tangencial %/Contracción Total Radial %)
1.5
PROPIEDADES QUÍMICAS DE LA MADERA
PROPIEDADES MECÁNICAS DE LA MADERA
Resistencia a flexión (Módulo de ruptura) CH12% (kgf/cm²)
1580
Rigidez (Módulo de elasticidad) CH12% (kgf/cm²)
156000
Resistencia a la compresión paralela a la fibra CH12% (kgf/cm²)
853
Cizallamiento radial CH12% (kgf/cm²)
167
Dureza Janka (lados) CH12% (kgf)
1186
Dureza Janka (extremos) CH12% (kgf)
1358
TRABAJABILIDAD
Aserrado
Wood of this species is difficult to cut.
Cepillado
It is difficult to plane and it gives a fair surface finishing.
Torneado
30
Taladrado
It has an excellent finishing in boring.
Lijado
It is reported to have excellent results.
Acabado
Finishing behavior is fair.
Usos Reportados
USOS FINALES (RESUMEN)
HOUSING GENERAL, flooring, PLYWOOD AND VENEER, Decorative veneer, TURNING, TOOLS, tool handles
VIVIENDA GENERAL
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
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
HERRAMIENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
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