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TANIMBUCA (Buchenavia huberi)
Nome comercial
Tanimbuca
Nome científico (autor)
Buchenavia huberi Ducke
Família
COMBRETACEAE
Nomes comuns
Tanimbuca (Brazil)
Nome científico sinônimo (autor
Buchenavia grandis Ducke
DESCRIÇÃO DA ÁRVORE
Descrição botânica
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.
Distribuição natural
B. huberi is found in the Brazilian Amazonia, it is reported in the Tapajos National Forest in the Para state.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
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.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
It has a mild scent while green, but it disappears after drying.
Cor
Heartwood and sapwood are indistinct. The wood is light brown to yellowish brown.
Indice de cor
4
Grã
The wood grain is straight to interlocked.
Veios ou desenhos na superfície
This species is reported to have a fine to medium texture.
Brilho
The wood is described as moderate in luster.
DURABILIDADE NATURAL
It is rated as moderately resistant against fungi, but highly resistant against termites. It has low resistance to marine borers.
Indice de durabilidade natural
3
Tratamento preservativo
The heartwood and sapwood are moderately easy to preserve, with irregular penetration.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.79
Densidade seca ao ar 12% (g/cm³)
0.90
Contração Tangencial Total (Saturado até peso seco) (%)
9.1
Contração Radial Total (Saturado até peso seco) (%)
6.0
Defeitos causados pela secagem
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.
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.5
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1580
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
156000
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
853
Cisalhamento radial a 12% (kgf/cm²)
167
Dureza Janka a 12% (perpendicular) (kgf)
1186
Dureza Janka a 12% (paralela) (kgf)
1358
TRABALHABILIDADE
Serrar ou Cortar
Wood of this species is difficult to cut.
Aplainamento
It is difficult to plane and it gives a fair surface finishing.
Torneamento
30
Furação
It has an excellent finishing in boring.
Lixamento
It is reported to have excellent results.
Acabamento
Finishing behavior is fair.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, flooring, PLYWOOD AND VENEER, Decorative veneer, TURNING, TOOLS, tool handles
CASAS
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas decorativas
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneamento
- 30 - Embassy of Honduras in Japan
FERRAMENTAS
- 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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