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PAU SANGUE (Pterocarpus vernalis)
Nome comercial
Pau sangue
Nome científico (autor)
Pterocarpus vernalis Pittier
Família
LEGUMINOSAE
Nomes comuns
Bollo Blanco (Colombia); Grau (Colombia); Grau Blanco (Colombia); Sangre De Grado (Colombia); Sangregado (Colombia); Sabroso (Colombia); Lagunero Mejoro (Venezuela); Macunana (Venezuela); Sangregado (Venezuela); Tasajo (Venezuela); Sangre Drago (Venezuela); Moutochi (Guyana); Ibará (Argentina); Sangre De Drago (Colombia); Yaya Sangre; Sangrillo; Sangre De Drago (Venezuela); Pau Sangue (Brazil); Palo Sangre Negro; Palo De Pollo; Nogal Falso (Bolivia); Mututi; Mucunana; Lagunero; Huevos De Gato; Drago (Venezuela); Bebe; Angu; Sangre
Nome científico sinônimo (autor
Pterocarpus rupestris Pittier; Pterocarpus podocarpus S.F. Blake; Pterocarpus minimus R.S. Cowan; Pterocarpus heterophyllus Pittier; Pterocarpus acapulcensis Rose
DESCRIÇÃO DA ÁRVORE
Descrição botânica
The tree attains a height of about 30 to 35 m, with diameters of 90 cm. The boles are straight, with commercial lengths of 10 to 20 m. It presents small or no buttresses.
Habitat natural
Pterocarpus vernalis grows in a wide variety of habitats in the tropical American forests. It is found in primary and secondary forests.
Distribuição natural
P. vernalis is reported from Southern Mexico to northern Argentina.
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 200 micras or more (large). Vessels per mm2 less than 6 (rare). Simple perforation plates. Vessel-ray pits similar to intervessel pits in size and shape. I Axial parenchyma in marginal or in seemingly marginal bands. Axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma in discontinuous tangential lines. Axial parenchyma storied. Prismatic crystals in chambered axial parenchyma cells and/or in fi Rays more than 10 per mm (abundant). Rays storied. Rays exclusively uniseriate. 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 reported to be indistinct. The wood is yellowish brown in color. Dark brown are reported in the heartwood.
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
It is generally very susceptible to attack by decay fungi.
Indice de durabilidade natural
5
Tratamento preservativo
Pterocarpus is very easy to treat using either open-tank or pressure vacuum systems.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.56
Densidade seca ao ar 12% (g/cm³)
0.62
Contração Tangencial Total (Saturado até peso seco) (%)
7.0
Contração Radial Total (Saturado até peso seco) (%)
4.0
Defeitos causados pela secagem
Ease of Drying: Drying is reported to be rapid. Drying Defects: Slight tendency to warping.
Programa de secagem recomendável
JUNAC-C
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.8
Programa de secagem detalhado
http://www.tropicaltimber.info/wp-content/uploads/2015/08/KD_JUNAC_SPA.pdf
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
942
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
128000
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
526
Cisalhamento radial a 12% (kgf/cm²)
119
Dureza Janka a 12% (perpendicular) (kgf)
617
Dureza Janka a 12% (paralela) (kgf)
740
TRABALHABILIDADE
Serrar ou Cortar
Cutting resistance is reported to be generally low.
Desdobro da tora em torno para lâminas
This species is reported to convert readily into veneer for plywood.
Desdobro da tora em faqueadeira para lâminas
This species is reported to convert readily into veneer for plywood.
Aspectos do processamento em máquinas
Pterocarpus wood is reported to have a good behavior in all machining operations.
Aplainamento
It is easy to plane to yield clean, smooth surfaces.
Lixamento
The material is reported to respond very well to sanding.
Steam Bending
Steam-bending properties are reported to be good.
Trabalhabilidade com ferramentas manuais
The wood responds well to hand tools.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
HOUSING GENERAL, beams, joists, boards, frames, panelling, fittings, FURNITURE AND CABINETS, cabinets, PLYWOOD AND VENEER, TOOLS, tool handles, PACKING, OTHER AND MUSICAL INSTRUMENTS, particleboard
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
Marcos de portas
- 16 - Woods of the World
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.
Gabinetes
- 24 - Empire Timbers
CHAPAS
- 25 - Directory of Timber Trade Malaysia
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
Aglomerado
- 80 - Estudio Integral de la Madera para Construcción
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