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PADOUK D`AFRIQUE (Pterocarpus soyauxii)
Nome comercial
Padouk d`Afrique
Nome científico (autor)
Pterocarpus soyauxii Taub.
Família
LEGUMINOSAE
Nomes comuns
Padouk d`Afrique; Osun (Nigeria); Afrikanisches Padouk (Germany); N'gula (Zaire); Mbel (Gabon); Kisésé (Congo); Ukpa; Uhile; Tizeze; Red santal; Osun; Nve; N`kula; N`gula; Muenge; Mbi; M`bio; Koula; Kisesi; Escio; Boko; Bo; Akume; African coral wood; Paduk (Italy); Padoek (Netherlands); Barwood (United Kingdom); Camwood (United Kingdom); African padauk (United Kingdom); Padauk (United Kingdom); Padauk (Germany); Corail (Belgium); Tacula (Angola); Mongola (Zaire); Mukula (Zaire); Ngula (Zaire); Kisese (Congo); Mbel (Cameroon); Palo rojo (Equatorial Guinea); Bosulu (Zaire); Mbil (Cameroon); Mbe (Cameroon); Padouk
Nome científico sinônimo (autor
Pterocarpus casteelsi De Wild.
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The tree reaches a height of 32 to 43 m. The bole is cylindrical, buttressed, straight and clear to 25 m in length. The trunk diameter attains 70 to 130 cm, sometimes even up to 170 cm. Log is banned for international trading.(Cameroon)
Habitat natural
Pterocarpus soyauxii is common in dense equatorial rain forests, often in small groups.
Distribuição natural
Central and tropical West Africa, from Nigeria to Cabinda
Existência de plantações?
Considered as a promising species for plantation. The duration of the rotation is 30 to 40 years, to reach 50 to 60 cm in diameter.
Usos não madeiravéis
Contains some resins or extracts which could pose problems when machining or finishing.
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. Paratracheal axial parenchyma scanty and/or vasicentric. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma storied. Prismatic crystals in short chains in chambered axial parenchy Rays storied. Rays exclusively uniseriate. 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, it has a thickness of 10 to 20 cm. The heartwood is vivid red sometimes with dark veining, toning down on exposure, it is clearly demarcated.
Indice de cor
2
Grã
Straight or slightly interlocked, sometimes with an influence on further processing operations.
Veios ou desenhos na superfície
The wood is reported to have a coarse texture.
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 growth stresses are absent.
Conteúdo de sílica
Silica Content: Negligible contents of silica are found in timber of this species. Amounts over 0.05% may affect the wood processing. Silica Value: 0.01
Tratamento preservativo
Moderately easy to treat with a partial penetration of the preservative products.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.69
Densidade seca ao ar 12% (g/cm³)
0.77
Contração Tangencial Total (Saturado até peso seco) (%)
5.0
Contração Radial Total (Saturado até peso seco) (%)
3.2
Defeitos causados pela secagem
Ease of Drying: Drying is very slow and difficult to perform; defects are frequent. Drying Defects: Risks of checks.
Programa de secagem recomendável
FR-7
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.6
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)
1197
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
155990
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
639
Resistência a compressão perpendicular as fibras a 12% (kgf/cm²)
86
Cisalhamento radial a 12% (kgf/cm²)
77
Dureza Janka a 12% (perpendicular) (kgf)
742
Dureza Janka a 12% (paralela) (kgf)
825
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. Possible difficulties caused by interlocked grain are reported.
Aplainamento
Moderately easy; tools must be cautiously sharpened.
Aplicação para molduras
Moderately easy; tools must be cautiously sharpened.
Torneamento
30
Furação
Moderately easy; tools must be cautiously sharpened.
Fresagem_ranhura_canais
Moderately easy; tools must be cautiously sharpened.
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, cutlery, lasts, CONTAINERS, truck bodies, truck flooring, NAVAL CONSTRUCTION, boats, boat hulls, boat deck, port storage, OTHER AND MUSICAL INSTRUMENTS, handicrafts
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
Cabo de faca
- 33 - Embassy of Gabon in Japan
Formas de sapateiro
- 34 - Embassy of Indonesia in Japan
Carroceria de caminhão
- 53 - Timbers of the New World
Pisos para assoalho de trem
- 54 - Bulletin of the Government Forest Experiment Station N.157: Identification of Tropical Woods
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
Artesanato
- 66 - Maderas latinoamericanas. VII. Caracteristicas anatomicas. propiedades fisicomecanicas, de secado, y tratabilidad de la madera juvenil de Cordia alliodora (Ruiz & Pav. Oken.)
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