African Mahogany Anegre Bamboo Birdseye Maple
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Use of Wood Residue in Making Reconstituted Board Products
University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 1959 Use of wood residue in making reconstituted board products Suthi Harnsongkram The University of Montana Follow this and additional works at: https://scholarworks.umt.edu/etd Let us know how access to this document benefits ou.y Recommended Citation Harnsongkram, Suthi, "Use of wood residue in making reconstituted board products" (1959). Graduate Student Theses, Dissertations, & Professional Papers. 3981. https://scholarworks.umt.edu/etd/3981 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. THE USE OF WOOD RESIDUE IN MAKING RECONSTITUTED BOMD HiODUCTS SUTHI HARNSOMJKRAM B.S.F., Unlveinsity of the Philippines, 1952 Presented in partial fulfillment of the requirements for the degree of Master of Forestry MONTANA STATE UNIVERSITY 1959 Approved Dean, Graduate School I 3 I960 Date UMI Number: EP34193 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent on the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. UMT " DlM«litionP«ibWfca ^ UMI EP34193 Copyright 2012 by ProQuest LLC. All rights reserved. This edition of the work is protected against unauthorized copying under Title 17, United States Code. -
Back Grou Di Formatio O the Co Servatio Status of Bubi Ga Ad We Ge Tree
BACK GROUD IFORMATIO O THE COSERVATIO STATUS OF BUBIGA AD WEGE TREE SPECIES I AFRICA COUTRIES Report prepared for the International Tropical Timber Organization (ITTO). by Dr Jean Lagarde BETTI, ITTO - CITES Project Africa Regional Coordinator, University of Douala, Cameroon Tel: 00 237 77 30 32 72 [email protected] June 2012 1 TABLE OF COTET TABLE OF CONTENT......................................................................................................... 2 ACKNOWLEDGEMENTS................................................................................................... 4 ABREVIATIONS ................................................................................................................. 5 ABSTRACT.......................................................................................................................... 6 0. INTRODUCTION ........................................................................................................10 I. MATERIAL AND METHOD...........................................................................................11 1.1. Study area..................................................................................................................11 1.2. Method ......................................................................................................................12 II. BIOLOGICAL DATA .....................................................................................................14 2.1. Distribution of Bubinga and Wengé species in Africa.................................................14 -
Special Edition
www.bearing-news.com SPECIAL EDITION ISSUE 202018 • P918438 BEARING INDUSTRY MAGAZINE SKF EITAN VESELY BEARINGS FOR THE FOOD & BEVERAGE INDUSTRY [email protected] or +44 (0) 1227 793 334 In our industry, the highest standard we can achieve for our Quality Management System is the ISO 9001 certification - awarded by TUV Rheinland. It is the global benchmark that guarantees a total focus on customer service and continual improvement. www.zen.biz All at ZEN Group Wish You Merry Christmas and a Happy New Year ! Online BEARING EXPO & B2B MEETINGS in 2021 Publisher Together with this new special edition of the interview that highlights the current technological BEARINGNEWS COMMV BearingNEWS magazine, I am pleased to announce the level and where the bearing industry is heading to. Camille Huysmanslaan 27/15 online BEARING EXPO & B2B MEETINGS event 2020 Antwerpen - BELGIUM on 15 – 17 March 2021. BEARING EXPO & B2B Mergers & Acquisitions MEETINGS is a unique chance and perfect opportunity More than ever before, small, and medium size Phone : +32 (0)489 32 85 21 Fax : +32 (0)3 303 52 82 to catch the moment and expand bearing and power bearing, and power transmission companies E-mail : [email protected] transmission companies digital presence worldwide are willing to move into strategic mergers and Web : www.bearing-news.com through this first ever, top tier online organization. long-term partnerships. An overview of M&A projects and specific acquisition searches by ICT Do not let the travel restrictions thwart your product Advisory Division can be read on page 40-41. -
Download This PDF File
CHARACTERISTICS OF TEN TROPICAL HARDWOODS FROM CERTIFIED FORESTS IN BOLIVIA PART I WEATHERING CHARACTERISTICS AND DIMENSIONAL CHANGE R. Sam Williams Supervisory Research Chemist Regis Miller Botanist and John Gangstad Technician USDA Forest Service Forest Products Laboratory1 Madison, WI 53705-2398 (Received July 2000) ABSTRACT Ten tropical hardwoods from Bolivia were evaluated for weathering performance (erosion rate, dimensional stability, warping, surface checking, and splitting). The wood species were Amburana crarensis (roble), Anudenanthera macrocarpa (curupau), Aspidosperma cylindrocarpon Cjichituriqui), Astronium urundeuva (cuchi), Caesalpinia cf. pluviosa (momoqui), Diplotropis purpurea (sucupira), Guihourriu chodatiuna (sirari), Phyllostylon rhamnoides (cuta), Schinopsis cf. quebracho-colorudo (soto), and Tabeb~liuspp. (lapacho group) (tajibo or ipe). Eucalyptus marginatu Cjarrah) from Australia and Tectonu grandis (teak), both naturally grown from Burma and plantation-grown from Central America, were included in the study for comparison. The dimensional change for the species from Bolivia, commensurate with a change in relative humidity (RH) from 30% to 90%, varied from about 1.6% and 2.0% (radial and tangential directions) for Arnburunu cer~ren.risto 2.2% and 4.1% (radial and tangential) for Anadenanthera macrocarpu. The dimensional change for teak was 1.3% and 2.5% (radial and tangential) for the same change in relative humidity. None of the Bolivian species was completely free of warp or surface checks; however, Anadenanthera macrocarpu, Aspidosperma cy- lindrocurpon, and Schinopsis cf. quebracho-colorado performed almost as well as teak. The erosion rate of several of the wood species was considerably slower than that of teak, and there was little correlation between wood density and erosion rate. Part 2 of this report will include information on the decay resistance (natural durability) of these species. -
Wood Characteristics Today
Wood Characteristics Today About 90% of all timber harvested in the United States comes from Private Land Only 10% comes from Government owned land Name the process of replanting small seedling trees as the mature trees are harvested? Reforestation Woods Natural Glue What natural adhesive material holds wood fibers together? Lignin New wood cells are formed in what layer? Draw and label the Photo to the right. Cambium When combined, the bands of springwood and summerwood form what? Annual Rings The age of most trees can be determined by counting the number of annual rings. Trees and lumber can be divided into what two main classes? A. Softwoods B. Hardwoods What is the scientific What is the scientific name for hardwood name for Softwood trees? trees? Deciduous Coniferous Softwood is a product of cone-bearing trees. Red Cedar The brilliant color, distinctive aroma and the moth- repelling qualities of Tennessee Red Cedar make this the ideal wood for chests and closet linings, or for the lining of chests made of other woods. Softwood is a product of cone-bearing trees. Pine Ponderosa Pine is a very large pine tree of variable habit native to western North America, but widespread throughout the temperate world. This softwood is known for its rustic, knotty appearance and is commonly seen in warm cabins in both the Sierra Nevada and Rocky Mountains. Softwood is a product of cone-bearing trees. Fir Mixed grain Douglas Fir is a resilient timber with a high strength to weight ratio. It has been widely used for various construction projects for centuries. -
African Mahogany Anegre Birdseye Maple Black Walnut
African Mahogany African Mahogany (Khaya) is a genus of seven species of trees in the mahogany family Meliaceae, native to tropical Africa and Madagascar. All species become big trees 30-35 m tall, rarely 45 m, with a trunk over 1 m trunk diameter, often buttressed at the base. The leaves are pinnate, with 4-6 pairs of leaflets, the terminal leaflet absent; each leaflet is 10-15 cm long abruptly rounded toward the apex but often with an acuminate tip. The leaves can be either deciduous or evergreen depending on the species. The flowers are produced in loose inflorescences, each flower small, with four or five yellowish petals and ten stamens. The timber of Khaya is called African mahogany, the only timber widely accepted as mahogany besides that of the true mahogany, of the genus Swietenia. Khaya senegalensis, also known as the African dry zone mahogany is also used for its non timber parts. In West Africa, Fulani herdsmen prune the tree during the dry season to feed cattle. Anegre Anegre is milled from the Tawa tree (Beilschmiedia tawa) is a New Zealand broadleaf tree common in the central parts of the country. Tawa is often the dominant canopy species in lowland forests in the North Island and north east of the South Island, Individual specimens may grow up to 30 meters or more in height with trunks up to 1.2 meters in diameter, and they have smooth dark bark. The word "tawa" is the Maori name for the tree. One of the few hardwood trees in the country with good timber, the wood of this tree can be used for attractive and resilient floor boarding. -
Purpleheart Tree PREZ SEYZ 2
FEBRUARY 2019 What’s Inside PREZ SEYZ Page 2 GALLERY OF BOWLS Page 4 TEN HARDEST WOODS Page 12 USE OF SPACER BLOCKS WITH PENS Page 15 PEN WOOD OF MONTH Page 18 Purpleheart Tree PREZ SEYZ 2 Hey woodturners, How you doing? What can I say, just keep shoveling! So much for a mild win- ter. As most of you are aware, the February meeting was canceled because of weath- er. If you didn't get the email notice, I apologize. It may have gone out on an older mailing list. So that being a situa- tion, if you need to send info out to club members, make sure you have the latest list. You can get it from Randy. If you have bowls yet for "Feed My People " please contact me at [email protected] and I will get them from you. Each of you who are signed up to do a demo at a club meeting, please just move your demo forward one month. If that can't work, let me know. We are always looking for new ideas for demos for club meetings. If you would like a demonstration on a given area of wood turning, let me know and we will try to get in in the schedule. For those of you who like to turn natural edge bowls, now is the time to cut the trees before the sap starts to flow. The bark is less likely to loosen. Obviously because on no meeting this month our letter will be somewhat shorter. I give Tom credit for his creativity in making it informative, Thanks Tom ! Well again as Bugs Bunny sez, "That's all folks" Prez Duane. -
Guaiacum Sanctum: Lignum Vitae1 Edward F
ENH445 Guaiacum sanctum: Lignum Vitae1 Edward F. Gilman, Dennis G. Watson, Ryan W. Klein, Andrew K. Koeser, Deborah R. Hilbert, and Drew C. McLean2 Introduction Uses: tree lawn 3–4 feet wide; tree lawn 4–6 feet wide; tree lawn > 6 ft wide; sidewalk cutout (tree pit); parking lot Lignum vitae is an extremely slow-growing broadleaf island < 100 sq ft; parking lot island 100–200 sq ft; parking evergreen which ultimately reaches 30 feet in height and lot island > 200 sq ft; container or planter; specimen; deck casts light shade, but few people have seen plants of this or patio; Bonsai; highway median size because it is not grown in the trade. Most are seen 8 to 12 feet tall with a beautiful array of multiple trunks and a rounded canopy much like that of a mature crape-myrtle. The one to two-inch-long, leathery, dark green leaves are joined at many times throughout the year by the production of large clusters of bluish purple flowers, the old flowers fading to a light silvery-blue and creating a shimmering haze over the rounded canopy. These flowers are followed by small, heart-shaped, yellow orange berries, appearing on the tree at the same time as the bluish purple flowers and creating a lovely sight. General Information Figure 1. Full Form—Guaiacum sanctum: Lignum vitae Scientific name: Guaiacum sanctum Description Pronunciation: GWY-uh-kum SANK-tum Height: 10 to 30 feet Common name(s): Lignum vitae, holywood, tree of life Spread: 8 to 12 feet Family: Zygophyllaceae Crown uniformity: symmetrical USDA hardiness zones: 10B through 11 (Figure 2) Crown shape: round, vase Origin: native to Florida, the West Indies, Mexico, and Crown density: dense Central America Growth rate: slow UF/IFAS Invasive Assessment Status: native Texture: fine 1. -
OVENGKOL.Pdf
OVENGKOL Page 1of 4 Family: FABACEAE-CAESALPINIOIDEAE (angiosperm) Scientific name(s): Guibourtia ehie Commercial restriction: no commercial restriction WOOD DESCRIPTION LOG DESCRIPTION Color: yellow brown Diameter: from 60 to 75 cm Sapwood: clearly demarcated Thickness of sapwood: from 4 to 7 cm Texture: fine Floats: no Grain: interlocked Log durability: good Interlocked grain: slight Note: Wood yellow brown to dark brown, with grey to blackish veins and copper glints. Moiré aspect on quartersawn. White deposits. PHYSICAL PROPERTIES MECHANICAL AND ACOUSTIC PROPERTIES Physical and mechanical properties are based on mature heartwood specimens. These properties can vary greatly depending on origin and growth conditions. Mean Std dev. Mean Std dev. Specific gravity *: 0,82 0,05 Crushing strength *: 69 MPa 9 MPa Monnin hardness *: 7,5 2,3 Static bending strength *: 127 MPa 16 MPa Coeff. of volumetric shrinkage: 0,57 % 0,12 % Modulus of elasticity *: 21470 MPa 2781 MPa Total tangential shrinkage (TS): 8,0 % 1,2 % Total radial shrinkage (RS): 3,9 % 0,7 % (*: at 12% moisture content, with 1 MPa = 1 N/mm²) TS/RS ratio: 2,1 Fiber saturation point: 24 % Musical quality factor: 109,8 measured at 2875 Hz Stability: moderately stable NATURAL DURABILITY AND TREATABILITY Fungi and termite resistance refers to end-uses under temperate climate. Except for special comments on sapwood, natural durability is based on mature heartwood. Sapwood must always be considered as non-durable against wood degrading agents. E.N. = Euro Norm Funghi (according to E.N. standards): class 2 - durable Dry wood borers: durable - sapwood demarcated (risk limited to sapwood) Termites (according to E.N. -
Rosewood) to CITES Appendix II.2 the New Listings Entered Into Force on January 2, 2017
Original language: English CoP18 Inf. 50 (English only / únicamente en inglés / seulement en anglais) CONVENTION ON INTERNATIONAL TRADE IN ENDANGERED SPECIES OF WILD FAUNA AND FLORA ____________________ Eighteenth meeting of the Conference of the Parties Geneva (Switzerland), 17-28 August 2019 IMPLEMENTING CITES ROSEWOOD SPECIES LISTINGS: A DIAGNOSTIC GUIDE FOR ROSEWOOD RANGE STATES This document has been submitted by the United States of America at the request of the World Resources Institute in relation to agenda item 74.* * The geographical designations employed in this document do not imply the expression of any opinion whatsoever on the part of the CITES Secretariat (or the United Nations Environment Programme) concerning the legal status of any country, territory, or area, or concerning the delimitation of its frontiers or boundaries. The responsibility for the contents of the document rests exclusively with its author. CoP18 Inf. 50 – p. 1 Draft for Comment August 2019 Implementing CITES Rosewood Species Listings A Diagnostic Guide for Rosewood Range States Charles Victor Barber Karen Winfield DRAFT August 2019 Corresponding Author: Charles Barber [email protected] Draft for Comment August 2019 INTRODUCTION The 17th Meeting of the Conference of the Parties (COP-17) to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), held in South Africa during September- October 2016, marked a turning point in CITES’ treatment of timber species. While a number of tree species had been brought under CITES regulation over the previous decades1, COP-17 saw a marked expansion of CITES timber species listings. The Parties at COP-17 listed the entire Dalbergia genus (some 250 species, including many of the most prized rosewoods), Pterocarpus erinaceous (kosso, a highly-exploited rosewood species from West Africa) and three Guibourtia species (bubinga, another African rosewood) to CITES Appendix II.2 The new listings entered into force on January 2, 2017. -
Is Guaiacum Sanctum Effective Against Arthritis? an Ethnobotany
Is Guaiacum sanctum Effective Against Arthritis? An Ethnobotany Case by Eric Ribbens, Barbra Burdett, and Angela Green Department of Biological Science Western Illinois University Part I—Anecdotal Evidence Dr. Beth Tonoany is a tropical population ecologist who has been studying an unusual tree, Guaiacum sanctum, which once grew throughout the dry tropical forests of Central America as well as on some of the Caribbean islands. Guaiacum sanctum produces a wood called lignum vitae, and is known in Costa Rica and other Spanish-speaking countries as guayacan reál. The wood is extremely heavy because it contains extensive deposits of resin (Howes, 1949) and it will sink if placed in water (Wilson and Eisner, 1968). During World War I and II it was extensively harvested for use in the ship-building industry because the wood, which does not split easily, is self- lubricating due to its high resin content. The wood is very durable, and was in high demand for constructing bearing sleeves to support ship propellor Figure 1: Seeds of shafts (Scurlock, 1987). It has also been used for making railroad ties Guaiacum sanctum (Woods, 1951). Dr. Tonoany has been studying one of the last remaining populations of lignum vitae in the Palo Verde Nature Preserve in northwestern Costa Rica. Probably fewer than 100 trees remain in Costa Rica, most in the Palo Verde Nature Preserve. Her research has included tracking seedlings and saplings, locating and measuring adult trees, and interviewing some of the local Ticos to learn about the tree’s past history in Costa Rica. The tree, while rare now due to the dramatic conversion of tropical deciduous forest in Costa Rica into pasturelands and to selective logging of the tree for its valuable wood, was once more common, and many of the older Ticos remember that the saplings were used to make cattle switches because of the strong flexible wood in the saplings. -
Modelling Mechanical Properties of Spruce and Douglas Fir Timber By
Modelling mechanical properties of spruce and Douglas fir timber by means of X-ray and grain angle measurements for strength grading purpose Joffrey Viguier, Damien Bourreau, Jean-François Bocquet, Guillaume Pot, Laurent Bléron, Jean-Denis Lanvin To cite this version: Joffrey Viguier, Damien Bourreau, Jean-François Bocquet, Guillaume Pot, Laurent Bléron, etal.. Modelling mechanical properties of spruce and Douglas fir timber by means of X-ray and grain angle measurements for strength grading purpose. European Journal of Wood and Wood Products, Springer Verlag, 2017, 75 (4), pp.527-541. 10.1007/s00107-016-1149-4. hal-01530963 HAL Id: hal-01530963 https://hal.archives-ouvertes.fr/hal-01530963 Submitted on 1 Jun 2017 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Distributed under a Creative Commons Attribution - ShareAlike| 4.0 International License Modelling mechanical properties of spruce and Douglas r timber by means of X-ray and grain angle measurements for strength grading purpose Jorey Viguier1∗, Damien Bourreau2, Jean-François Bocquet1, Guillaume