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DOUSSIé (Afzelia africana)
Nome comercial
Doussié
Nome científico (autor)
Afzelia africana Smith
Família
LEGUMINOSAE
Nomes comuns
Kpendei (Sierra Leone); Pau conta (Guinea-Bissau); Lingue (Guinea); Lingue (Burkina Faso); Afzelia (United States of America); N'kokongo (Congo); M'banga (Cameroon); N'kokongo (Angola); Yoruba bilinga; Yada; Wokpa; Upa; Rhodesian mahogany; Pepe; Pau konta; Papoa; Papawu; Papao-baum; Opapeh; Opapao; Olombi; Ngboro; Meli; Mboro; Mbokora; Mahogany bean tree; Mahogany bean; Liwamba; Lengue; Kukpalik; Kuanguli; Kpendi-kpoli; Kpendi-guli; Kpendi-deli; Kpaliga; Kpalga; Kpa-kpa; Kontah; Kinkalaga; Kawo; Kapalaga; Kakala; Hol; Gongo; Gbleteo; Gbende; Gayohi; Gayo; Chanfuta (Portugal); Afzelia (Germany); Afzelia (United Kingdom); Chanfuta (United States of America); Mbembakofi (Tanzania); Mkora (Tanzania); Chanfuta (Mozambique); Mussacossa (Mozambique); Uvala (Angola); Bolengu (Zaire); N`kokongo (Angola); N`kokongo (Congo); Doussie (Cameroon); M`banga (Cameroon); Aligna (Nigeria); Apa (Nigeria); Papao (Ghana); Azodau (Côte d`Ivoire); Lingue (Côte d`Ivoire); Lingue (Senegal); Pauconta (Guinea-Bissau); Fok; Douissie; Counter wood; Bodjembo; Bilinga; Beyo; Balawo-kudu; Balawao-kudu; Bachi; Baa; Azza; Ayan; Ariyan; Arachi; Alinyan; Akpela; Akpalata; Aja; Ahanta; Adya; Adja
Nome científico sinônimo (autor
Intsia africana (Sm.) Kuntze
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The total length varies from 26 to 40 m, with trunk diameter of 100 to 170 cm and more. The bole is clear, it attains 10 to 16 m in length, some large irregular buttresses are sometimes present.
Habitat natural
Afzelia africana occurs in the dense evergreen forest, but also common in the savanna and coastal forests of East Africa. The tree reaches its best development on moist sites. It is known or inferred that unless the species is subject to strict regulatio
Distribuição natural
West, Central and East Africa.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Occasionally vessels exclusively solitary (over 90%). Tangential diameter of vessel lumina 200 micras or more (large). Vestured pits. Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma lozenge-aliform. Prismatic crystals in chambered axial parenchyma cells and/or in fibers. 3 to 4 cells per parenchyma strand. 4 to 10 rays per mm (medium). Rays non-storied. Rays 1 to 4 seriate. Homogeneous rays and/or sub-homogeneous rays (all ray cells procumbent). Non-septate fibers. Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Cor
The sapwood is whitish to pale yellow, it has a thickness of 2 to 5 cm. The heartwood is reddish brown, it is clearly demarcated.
Indice de cor
4
Grã
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Veios ou desenhos na superfície
The texture of the wood is frequently coarse.
DURABILIDADE NATURAL
Very durable to decay; without preservative treatment. This species is especially suited for all the uses with risks of permanent or long-lasting humidification. Resistant to termites attack. Heartwood is resistant to Lyctus attacks.
Indice de durabilidade natural
1
Tensões internas do crescimento
Residual stresses are reported to be absent.
Conteúdo de sílica
Silica Content: This timber is reported to have a negligible silica content. Silica contents over 0.05% may affect wood processing. Silica Value: 0.01
Tratamento preservativo
Nearly impossible to treat with a too much low penetration of the preservative substances.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.7040082525
Densidade seca ao ar 12% (g/cm³)
0.79
Contração Tangencial Total (Saturado até peso seco) (%)
4.2
Contração Radial Total (Saturado até peso seco) (%)
3.0
Programa de secagem recomendável
FR-6
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.4
Programa de secagem detalhado
http://www.tropicaltimber.info/wp-content/uploads/2015/09/KD_French.pdf
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1256
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
154255
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
733
Resistência a compressão perpendicular as fibras a 12% (kgf/cm²)
103
Cisalhamento radial a 12% (kgf/cm²)
83
Dureza Janka a 12% (perpendicular) (kgf)
782
Dureza Janka a 12% (paralela) (kgf)
860
TRABALHABILIDADE
Serrar ou Cortar
Sawing of this species requires powerful equipment.
Desdobro da tora em torno para lâminas
Suitable for slicing.
Desdobro da tora em faqueadeira para lâminas
Suitable for slicing.
Desgaste de ferramentas
Moderate blunting effect; stellited blades for sawing and carbide tools for machining are advised.
Aspectos do processamento em máquinas
It needs powerful tools for processing.
Aplainamento
Moderately easy; tools must be cautiously sharpened.
Aplicação para molduras
Easy; no particular problems.
Torneamento
30
Furação
Easy; no particular problems.
Fresagem_ranhura_canais
Easy; no particular problems.
Comportamento na aplicação de pregos
Pre-boring is necessary.
Colagem
Difficult to glue because of the extracts content.
Lixamento
Easy to perform; it gives good results.
Operação de lustre da superfície (brilho)
Needs pre-coating.
Steam Bending
This species can be used for steam bending.
Trabalhabilidade com ferramentas manuais
Working with hand tools is difficult.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, beams, joists, boards, flooring, parquet, frames, steps, panelling, fittings, FURNITURE AND CABINETS, luxury furniture, cabinets, PLYWOOD AND VENEER, Decorative veneer, TURNING, ornaments, turned furniture, CONTAINERS, cooperage, NAVAL CONSTRUCTION, boats, boat hulls, boat deck, port storage, OTHER AND MUSICAL INSTRUMENTS, shingle
CASAS
- 10 - Silica in Timbers
Vigas
- 11 - Prospect: The wood database
Vigotas
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Tábuas
- 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
Parquets
- 15 - Empire Timbers
Marcos de portas
- 16 - Woods of the World
Degraus de escada
- 17 - Tree Conservation Database
Painéis
- 18 - W3TROPICOS Missouri Botanical Garden
Acessórios de madeira
- 19 - Silica in Timbers
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
Móveis finos
- 22 - Dry kiln schedules for commercial woods. Temperate and tropical. Section IV-Asian and Oceanian Woods
Gabinetes
- 24 - Empire Timbers
CHAPAS
- 25 - Directory of Timber Trade Malaysia
Lâminas decorativas
- 28 - Ministry of Agriculture, Fisheries & Forest of Fiji
Torneamento
- 30 - Embassy of Honduras in Japan
Artigos torneados
- 31 - Embassy of Colombia in Japan
Artigos torneados
- 32 - Embassy of Cote d`Ivoire in Japan
Tanoaria
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
Barcos
- 56 - Manual de Identificación de Especies Forestales de la Subregión Andina.
Casco para barcos
- 57 - Estadísticas de Aprovechamiento, Exportación y comercialización Nacional de Productos Forestales
Coberta para barcos
- 59 - Programa Nacional de uso Sostenible de los Bosques e Incremento a las Exportaciones.
Port Storage
- 62 - Estudio Tecnológico de Maderas del Perú (Zona Pucallpa) Vol I
Shingles
- 77 - Amazonian Timbers, Characteristics and Utilization Volume I; Tapajós National Forest
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