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BASRALOCUS (Dicorynia guianensis)
Nome comercial
Basralocus
Nome científico (autor)
Dicorynia guianensis Amshoff
Família
LEGUMINOSAE
Nomes comuns
Teck de la guyane; Teck de guyane; Tamoene-kereoe zand locus; Sinngapetou; Singapetou; Sienxa pretoe; Siengdia peto; Siengdia apeto; Kierou; Kiejere-oe; Kieereoe; Dobono-so; Basralokus; Barakaruballi; Angelique blanc; Angelica do para; Angelica; Angelique Batard; Tapaiuna (Brazil); Teck De La Guyanne; Sienga Pretoe; Kabakally; Barakaroeballi; Bois Angelique; Basra Loksi; Bastard Locus; Basralocus; Basra Locus; Angelica Do Pará (Brazil); Angelique Rouge; Angelique Franc; Angelique Gris; Angelique
Nome científico sinônimo (autor
Dicorynia paraensis Benth.
DESCRIÇÃO DA ÁRVORE
Descrição botânica
It is a dominant tree, it attains heights of 45 m, with a diameter at breast height of 50 to 90 cm, occasionally up to 150 cm. The stem is reported to be cylindrical, 20 to 25 m in length.
Habitat natural
Dicorynia guianensis is distributed in well drained soils, but is also found in humid lands.
Distribuição natural
It is abundant in Surinam and French Guyana.
IDENTIFICAÇÃO DA MADEIRA
Descrição anatômica da madeira (macro e micro)
Wood diffuse porous. Occasionally vessels in radial multiples of 4 or more common. Vessels solitary and in short radial multiples. Tangential diameter of vessel lumina 200 micras or more (large). Occasionally white deposits in heartwood vessels. Vessels per mm Axial parenchyma apparent with the naked eye. Occasionally axial parenchyma aliform. Axial parenchyma confluent. Axial parenchyma in discontinuous tangential lines. Axial parenchyma in thick bands. Axial parenchyma storied. Siliceous bodies in the axial parench 4 to 10 rays per mm (medium). Rays storied. Rays 1 to 4 seriate. Silica bodies in the ray cells. Occasionally heterogeneous rays and/or multiseriate heterogeneous rays. Body ray cells procumbent with mostly 2 to 4 rows of upright and/or square marginal cells ( Fibers with simple to minutely bordered pits.
DISPONIBILIDADE
Situação CITES sobre a proteção
Unrestricted
DESCRIÇÃO GERAL DA MADEIRA
Odor ou Cheiro
Odor or taste are typically indistinct.
Cor
The sapwood and heartwood are clearly different. The heartwood is reddish brown gray to reddish or yellowish-brown.
Indice de cor
2
Grã
The grain is commonly straight to interlocked.
Veios ou desenhos na superfície
The texture is medium.
DURABILIDADE NATURAL
It is moderately durable to durable against fungi. It is rated as resistant against termite, Lyctus and marine borers.
Indice de durabilidade natural
4
Conteúdo de sílica
Silica Content: Silica contents of 0.20% to 1.70%, and as high as 2.92% (of oven-dry weight) have been reported. Silica contents over 0.05% of dry weight are generally believed to affect the machining properties of wood. Silica Value: 2.92
Tratamento preservativo
This species is reported to be difficult to preserve.
PROPRIEDADES FÍSICAS DA MADEIRA
Densidade básica (Peso seco/Volume saturado) (g/cm³)
0.68
Densidade seca ao ar 12% (g/cm³)
0.76
Contração Tangencial Total (Saturado até peso seco) (%)
8.9
Contração Radial Total (Saturado até peso seco) (%)
5.4
Defeitos causados pela secagem
Ease of Drying: Air seasoning is recommended to reduce the risk of defects. Drying Defects: Risk of warping, severe checking is also reported. Kiln Schedules: Careful drying recommended.
Programa de secagem recomendável
US-T2-B2
Estabilidade dimensional (Contração Tangencial Total %/Contração Radial Total %)
1.6
Programa de secagem detalhado
http://www.tropicaltimber.info/wp-content/uploads/2015/08/KD_USA_ENG.pdf
PROPRIEDADES QUÍMICAS DA MADEIRA
PROPRIEDADES MECÂNICAS DA MADEIRA
Resistência a flexão a 12% (Módulo de ruptura) (kgf/cm²)
1631
Flexão Estática a 12% (Módulo de elasticidade) (kgf/cm²)
152852
Resistência a compressão paralela as fibras a 12% (kgf/cm²)
697
Resistência a compressão perpendicular as fibras a 12% (kgf/cm²)
100
Cisalhamento radial a 12% (kgf/cm²)
96
Dureza Janka a 12% (perpendicular) (kgf)
685
Dureza Janka a 12% (paralela) (kgf)
912
TRABALHABILIDADE
Serrar ou Cortar
Sawing operations are rather difficult. Power required.
Desdobro da tora em torno para lâminas
It is interesting for peeling, thermal treatments are recommended; it could be also sliced.
Desdobro da tora em faqueadeira para lâminas
It is interesting for peeling, thermal treatments are recommended; it could be also sliced.
Desgaste de ferramentas
Blunting effect can be severe depending upon silica content. Stellite tipped band saws are recommended.
Aspectos do processamento em máquinas
Machining characteristics are dependent upon the silica content but the timber is rated as generally easy to work.
Aplainamento
It planes well, with smooth finished surfaces. Carbide tips and a reduced cutting angle of 20 degrees recommended for best results.
Comportamento na aplicação de pregos
Nail holding properties are reported to be good but the wood may require to be pre-bored in nailing.
Colagem
The material is reported to have good gluing properties.
Acabamento
It gives a good finish.
Operação de lustre da superfície (brilho)
The material is reported to have good polishing properties.
USOS FINAIS RELATADOS
USOS FINAIS (RESUMO)
EXTERIOR GENERAL, crossties, HOUSING GENERAL, beams, joists, flooring, steps, FURNITURE AND CABINETS, CONTAINERS, cooperage, NAVAL CONSTRUCTION
EXTERIOR
- 1 - Tabela de resultados de ensaios fisicos e mecanicos
Dormentes
- 8 - Maderas latinoamericas. III, Podocarpus standleyi ,Podocarpus oleifolius, Drims granadensis, Magnolia poasana y Didymopanax pittieri
CASAS
- 10 - Silica in Timbers
Vigas
- 11 - Prospect: The wood database
Vigotas
- 12 - Tropical timbers of the world. Part I-Tropical American Species
Pisos
- 14 - Handbook of Hardwoods
Degraus de escada
- 17 - Tree Conservation Database
MÓVEIS GABINETES
- 21 - Tropical timbers of the world. Part III-Southeast Asian and Oceanian Species.
CAIXA GRANDE OU CONTAINER
- 50 - Properties of imported tropical woods
Tanoaria
- 51 - Recopilacion de propiedades mecanicas de maderas creciendo en Chile
CONSTRUÇÃO NAVAL
- 55 - Tropical Timber Atlas of Latin America
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