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JEQUITIBA (Cariniana integrifolia)
Nome comercial
Jequitiba
Nome científico (autor)
Cariniana integrifolia Ducke
Família
LECYTHIDACEAE
Nomes comuns
Jequitiba (Brazil)
DESCRIÇÃO DA ÁRVORE
Descrição botânica
Cariniana trees are often about 30 to 40 m in height, with a trunk diameter of about 100 to 120 cm. It has a clean bole up to two thirds of the total length.
Habitat natural
Confined to non-flooded forest of central Amazonia, near Manaus, the species is under threat from increasing land settlement and fires.
Distribuição natural
This species is reported in the vicinity of Manaus, Brazil.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Vessels per mm2 less than 6 (rare). Wood diffuse porous. Vessels solitary and in short radial multiples. Tyloses common. Tangential diameter of vessel lumina 200 micras or more (large). Vessel-ray pits similar to intervessel pits in size and shape. Simple perfo Axial parenchyma apparent with the naked eye. Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma in continuous tangential lines (included in reticulate and scalariform). Axial parenchyma bands over 4 per mm. 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
No odor or taste are reported for this species.
Cor
The sapwood is not clearly demarcated form the reddish or purplish-brown heartwood.
Indice de cor
4
Grã
The grain is straight to interlocked.
Veios ou desenhos na superfície
The texture is medium.
Brilho
The wood is commonly of medium luster.
DURABILIDADE NATURAL
The heartwood is reported to be durable. It is resistant to attack by dry-wood termites.
Indice de durabilidade natural
3
Conteúdo de sílica
Silica Content: Some Cariniana timbers are reported to have high silica content. Silica contents over 0.05% of dry weight are generally believed to affect the machining properties of wood. Silica Value: 0.05
Tratamento preservativo
The heartwood responds very poorly to preservative treatment, but the sapwood is permeable.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.53
Densidade seca ao ar 12% (g/cm³)
0.58
Contração Tangencial Total (Saturado até peso seco) (%)
5.0
Contração Radial Total (Saturado até peso seco) (%)
3.0
Defeitos causados pela secagem
Ease of Drying: Air seasoning is reported to be moderate. Drying Defects: Risk of warping is reported.
Programa de secagem recomendável
US-T3-D2; UK-D
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.7
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
479
Cisalhamento radial a 12% (kgf/cm²)
143
Dureza Janka a 12% (perpendicular) (kgf)
463
TRABALHABILIDADE
Serrar ou Cortar
Cariniana timber is easy to saw, but it may blunt the band saws.
Desdobro da tora em torno para lâminas
This wood is interesting for peeling.
Desdobro da tora em faqueadeira para lâminas
This wood is interesting for peeling.
Desgaste de ferramentas
It is reported to have a moderate blunting effect on cutting edges because of silica.
Aspectos do processamento em máquinas
Most woodworking qualities of Cariniana are rated as satisfactory.
Aplainamento
Planing operations are rather easy, but dull cutting edges may cause grain tearing.
Torneamento
30
Comportamento na aplicação de pregos
The wood nails satisfactorily but pre-boring is recommended.
Colagem
This wood glues well.
Acabamento
It gives a smooth finish.
Aplicação de verniz
The material takes stains well.
Operação de lustre da superfície (brilho)
The wood finishes well.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, flooring, fittings, FURNITURE AND CABINETS, PLYWOOD AND VENEER, faces, cores, TURNING, OTHER AND MUSICAL INSTRUMENTS, moldings
CASAS
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
Acessórios de madeira
- 19 - Silica in Timbers
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas de superfície das chapas
- 26 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Lâminas de miolo das chapas
- 27 - Embassy of Brazil in Japan
Torneamento
- 30 - Embassy of Honduras in Japan
Molduras de quadros
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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