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TAUARI (Couratari oblongifolia)
Nome comercial
Tauari
Nome científico (autor)
Couratari oblongifolia Ducke & R. Knuth
Família
LECYTHIDACEAE
Nomes comuns
Mahot; Estopeiro (Brazil); Tauari Morrão (Brazil); Imbirema (Brazil); Tauri-Amarelo (Brazil); Tauari (Brazil); Guatambu-Vermelho (Brazil)
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The commercial lengths are reported to vary from 9 to 16 m, with diameters from 45 to 75 cm. The logs are reported to be straight and cylindrical.
Distribuição natural
This genus is reported to be widely distributed all over tropical South America.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Vessels solitary and in short radial multiples. Occasionally tangential diameter of vessel lumina 200 micras or more. Tyloses common. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits Axial parenchyma in continuous tangential lines (included in reticulate and scalariform). Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 5 to 8 cells per parenchyma strand. Axial parenchyma in narrow bands on lines up to 3 cells wid 4 to 10 rays per mm (medium). Rays 1 to 4 seriate. Silica bodies in the ray cells. 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
It has no discernible odor or taste.
Cor
The heartwood and sapwood are indistinct. The wood is yellowish white to light yellowish brown.
Indice de cor
6
Grã
The grain is usually straight.
Veios ou desenhos na superfície
This species is usually reported to have a medium texture.
Brilho
Luster is reported to be low.
Indice de durabilidade natural
6
Tratamento preservativo
The wood of this species is very easy to preserve with oil or water soluble products.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.50
Densidade seca ao ar 12% (g/cm³)
0.54
Contração Tangencial Total (Saturado até peso seco) (%)
6.6
Contração Radial Total (Saturado até peso seco) (%)
4.2
Programa de secagem recomendável
BR-A
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.6
Programa de secagem detalhado
http://www.tropicaltimber.info/wp-content/uploads/2015/08/KD_Brazilian1.pdf
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
876
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
109500
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
466
Resistência a compressão perpendicular as fibras a 12% (kgf/cm²)
63
Cisalhamento radial a 12% (kgf/cm²)
97
Dureza Janka a 12% (perpendicular) (kgf)
425
Dureza Janka a 12% (paralela) (kgf)
566
TRABALHABILIDADE
Serrar ou Cortar
Wood of this species is easy to cut.
Desdobro da tora em torno para lâminas
It is interesting for peeling and for slicing, thermal treatments are recommended.
Desdobro da tora em faqueadeira para lâminas
It is interesting for peeling and for slicing, thermal treatments are recommended.
Desgaste de ferramentas
This species has a moderate to severe blunting effect because of its silica content.
Aplainamento
It is easy to process, with good results. Risk of torn grain is reported.
Aplicação para molduras
Molding of this species is reported to be easy.
Torneamento
30
Furação
Boring operations are easy, with very good finishing.
Lixamento
Sanding operations it gives good results, but fuzzy surfaces are reported.
Aplicação de verniz
Staining of this wood is easy.
Revestimentos
Painting or varnishing of this species is reportedly easy.
Operação de lustre da superfície (brilho)
It has a good polishing.
Trabalhabilidade com ferramentas manuais
C. oblongifolia is reported to be easy to cut with hand tools.
Espécies alternativas
This species is reported to be similar to Teak (Tectona grandis) and Koto (Pterygota spp.).
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
EXTERIOR GENERAL, HOUSING GENERAL, flooring, panelling, shutter boards, FURNITURE AND CABINETS, PLYWOOD AND VENEER, Decorative veneer, TURNING, cutlery, BENDING, SPORTS, table tennis, TOOLS, tool handles, PACKING, NAVAL CONSTRUCTION, boats, OTHER AND MUSICAL INSTRUMENTS, handicrafts, moldings
EXTERIOR
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
CASAS
- 10 - Silica in Timbers
Pisos
- 14 - Handbook of Hardwoods
Painéis
- 18 - W3TROPICOS Missouri Botanical Garden
Persianas
- 20 - Prospect: The wood database
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas decorativas
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneamento
- 30 - Embassy of Honduras in Japan
Cabo de faca
- 33 - Embassy of Gabon in Japan
Resistência a flexão
- 35 - Embassy of Myanmar in Japan
INSTRUMENTOS ESPORTIVOS
- 38 - Annual Review and Assessment of the World Timber Situation 1998-ITTO
Pin pong
- 41 - Embassy of the Philippines
FERRAMENTAS
- 42 - Utilización Industrial de Nuevas Especies Forestales en el Perú.
Mangos herramientas
- 43 - Maderas de Bolivia (Características y Usos de 55 Maderas Tropicales)
PALETES PARA EMBALAGENS
- 45 - Recopilación y Análisis de Estudios Tecnológicos de Maderas Peruanas
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
Barcos
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
ARTIGOS MUSICAIS E OUTROS
- 63 - Madeiras do Brazil II
Artesanato
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
Molduras de quadros
- 79 - Padronização da Nomenclatura Comercial Brasileira das Madeiras Tropicais Amazônicas, Sugestão
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