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Comparative Study of NZ Pine & Selected SE Asian Species
(FRONT COVER) A COMPARATIVE STUDY OF NEW ZEALAND PINE AND SELECTED SOUTH EAST ASIAN SPECIES (INSIDE FRONT COVER) NEW ZEALAND PINE - A RENEWABLE RESOURCE NZ pine (Pinus radiata D. Don) was introduced to New Zealand (NZ) from the USA about 150 years ago and has gained a dominant position in the New Zealand forest industry - gradually replacing timber from natural forests and establishing a reputation in international trade. The current log production from New Zealand forests (1998) is 17 million m3, of which a very significant proportion (40%) is exported as wood products of some kind. Estimates of future production indicate that by the year 2015 the total forest harvest could be about 35 million m3. NZ pine is therefore likely to be a major source of wood for Asian wood manufacturers. This brochure has been produced to give prospective wood users an appreciation of the most important woodworking characteristics for high value uses. Sponsored by: Wood New Zealand Ltd. Funded by: New Zealand Ministry of Foreign Affairs and Trade Written by: New Zealand Forest Research Institute Ltd. (Front page - First sheet)) NEW ZEALAND PINE - A VERSATILE TIMBER NZ pine (Pinus radiata D.Don) from New Zealand is one of the world’s most versatile softwoods - an ideal material for a wide range of commercial applications. Not only is the supply from sustainable plantations increasing, but the status of the lumber as a high quality resource has been endorsed by a recent comparison with six selected timber species from South East Asia. These species were chosen because they have similar end uses to NZ pine. -
2018 Line Card
H.D. Chasen Company Inc. H. D. CHASEN TOOL GROUP INVENTORY SOLUTIONS LOGISTICS www.steelerectortools.com “OTHERS TALK... WE STOCK.” 2018 LINE CARD 40 Lake Street|Somerville, MA|02143 P|617.666.9090 www.hdchasen.com INDEX OF PRODUCTS INDEX OF PRODUCTS A B Abrasive Back Stand Idler Units Abrasives - Abrasive Mounted Points Back Support Systems Abrasives - Bristle Discs - Roloc / Cup Wheel Bags - Tool Bags Abrasives - Cartridge Rolls Balldriver Hex Screwdrivers Abrasives - Cloth Sanding Rolls Balldriver Insert Bits Abrasives - Coated Abrasives Balldriver L-Wrench / Sets Abrasives - Combiwheels Abrasive / Scotchbrite Balldriver Power Bits Abrasives - Diamond Lapping Film Discs Balldriver T-Handle - Sets & Singles Abrasives - Diamond Lapping Film Sheets Bandsaws - Electric Abrasives - Diamond Products Bars - Boring Abrasives - Disc Pad Holder Bars - Breaker 3/8,1/2,3/4 Drive Abrasives - Discs PSA Cloth / Paper, Resin Fibre Bars - Claw Bar 5' Abrasives - Discs Quick Change Bars - Connecting Bars Abrasives - Discs Resin Fibre Bars - Diamond Point 5' Abrasives - Discs Roloc A/O, Regalite Polycut Bars - Grizzly Bar Abrasives - Discs Velcro S/C, Gold Bars - Jimmy Bars Abrasives - Flap Wheels Bars - Offset Pinch Bars - 14" - 48" Abrasives - Lapping Film Discs Bars - Pinch Bars 13-1/2" - 48" Abrasives - Lapping Film Sheets Bars - Pinch Point Crow Bar / 3' - 5-1/2' Abrasives - Microfinishing Film Discs Bars - Pry Abrasives - Microfinishing Film Sheets Bars - San Angelo Digging 5' - 7' Abrasives - Mounted Points / Cotton Abrasive Bars - Telegraph Lining -
½” (12Mm) HDF CORE Engineered Tongue & Groove INSTALLATION
wood flooring C. SUBFLOOR TYPES AND CONDITIONS ypes efer to NWFA Installation Guidelines, Section II for ubfloor nformation xposure plywood minimum thick olid board x wide square edge kiln dried xposure minimum thick oncrete efer to NWFA Installation Guidelines, Section II, Chapter 5 & 6 article board is an approved subfloor for nail down or glue down applications inimum lywood ub flooring equirements x sheets of grade underlayment with a maximum on center joist construction f joist system is spaced over on center an additional layer of ½” (12mm) HDF CORE lywood underlayment laid diagonal or perpendicular will be required Engineered Tongue & Groove inimum specified materials at maximum span and spacing may result in movement gaps and noises he subfloor must be clean dry and flat to within per radius f necessary sand or plane high INSTALLATION GUIDELINES spots and fill low areas using a cement based patchingleveling compound ecure any loose boards or panels to prevent squeaking he surface temperature of the subfloor at time of installation should be at Float/Glue down/Nail or Staple least but never exceed Asbestos Warning Please read all installation guidelines o not sand existing resilient tile sheet flooring backing or felt linings as these products may contain asbestos fibers that are not easily identified he inhalation of asbestos dust can cause asbestosis or other before proceeding with installation serious bodily harm heck with local state and federal laws for handling hazardous material prior to attempting the removal of these floor A. INSTALLER/OWNER RESPONSIBILITY - IMPORTANT amage due to moisture issues is not a product failure and is not covered by our warranty Inspect all ooring material carefully for correct product and visible defects BEFORE INSTALLATION. -
Atla Fibre Co Article Fabricating Cutting Thermoset
SpecialFocus Fabricating and Cutting Thermoset Materials Plastics Fabrication by Mark Mush s the machining of plastic materials cannot be mastered in one diameter run at 3,000-3,600 rpm will give good results cutting dry with a setting, the same can be said, probably more so, of thermosets good exhaust system. Material feed should be as fast possible without forcing A(FR4/G-10, G-11, phenolics). Glass epoxies and phenolics have the saw. Idling creates friction and heat, which cause excessive dulling and traditionally been unfairly characterized as materials that many machine burning. A flood of water or water-soluble coolants on the work and wheel shops or fabricators avoid due to their dust, wear and tear on equipment can be used when necessary to prevent overheating. Abrasive wheel cutting and tools and the overall toughness of the material. To the contrary, with under water is also recommended. a little bit of practice and patience, most fabricators can master the art of thermosets. What follows is a guide to get you started in that process. Turning Mastering these suggestions will not immediately make you an expert Paper and fabric grades machinist of these materials but should significantly improve your skills. Ordinary high-speed tool steel can be used in finishing operations for all Paper and fabric grades thermoset grades. However, carbide-tipped tools may prove more economi- cal and will hold sizes more accurately from piece to piece. About .010" stock Thermoset materials machine well with proper techniques. As a rule, they should be left for finishing. Thermosets can be turned at 400 surface feet per machine more readily than metals with standard machine tools such as minute with high-speed tools and about twice as fast with carbides. -
End-Match-White-Paper-1.Pdf
END-MATCHED VS. NON-END-MATCHED THE BUILDER’S CHOICE End-matching has been around for well over two decades in the manufacturing of wood siding, paneling and looring. This process has been shown to signiicantly decrease waste and labor, which make installation simpler and more eficient. However, builders are not easily convinced to move away from their tried and tested ways. This paper seeks to irst outline and respond to the main concerns from builders who have traditionally used non-end- matched products, secondly to outline the key beneits of end-matched products, and thirdly to provide testimonials from builders who have taken the leap. What are builders concerned about when they see, for example, 3”x8” Hand Hewn end-matched End-matched is a term that describes siding — random lengths 2’ to 8’? the process of double-end trimming The irst concern is often directed to the 2 to 8 foot tally. This can of wood siding, paneling or looring be mind boggling when you are used to 12 to 16 foot lengths. pieces, and precision milling a tongue- How do I cover the long sections? Where do I use all the small and-groove on the plank ends. pieces? Will there be numerous visible seams? What will that look like? Does it create any problems? Will I still need to make cuts? How much waste factor do we need to account for? Will it end up as being more work? Builders’ main concerns can be boiled down to the following points: • Tally and use of different lengths • Appearance • Waste • Workload These concerns can all be easily addressed — and will be as you read on! WWW.HEARTWOODMILLS.COM | 888.829.5909 1 How does end-matching change the build process? The most signiicant change for a builder is that end-matched paneling or siding no longer needs to butt on a stud. -
Performance, Technology and Application of High Performance Marine Vessels Volume One
Performance, Technology and Application of High Performance Marine Vessels Volume One Performance, Technology and Application of High Performance Marine Vessels Volume One Edited by Liang Yun, Raju Datla and Xinfa Yang Performance, Technology and Application of High Performance Marine Vessels Volume One Edited by Liang Yun, Raju Datla and Xinfa Yang This book first published 2018 Cambridge Scholars Publishing Lady Stephenson Library, Newcastle upon Tyne, NE6 2PA, UK British Library Cataloguing in Publication Data A catalogue record for this book is available from the British Library Copyright © 2018 by Liang Yun, Raju Datla, Xinfa Yang and contributors All rights for this book reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owner. ISBN (10): 1-5275-0356-9 ISBN (13): 978-1-5275-0356-4 CONTENTS Preface by the Editors-in-Chief ................................................................. xii Liang Yun, Raju Datla, Xinfa Yang Preface .................................................................................................... xxiv Trevor Blakeley Preface .................................................................................................... xxvi Guo Da-cheng Preface .................................................................................................. xxviii Huang Ping-tao Preface .................................................................................................... -
Discoloration of Norway Spruce and Scots Pine Timber During Drying
Discoloration of Norway spruce and Scots pine timber during drying V. Tarvainen VTT Building and Transport, Puumiehenk. 2A Espoo, P.O.Box 1806 FIN-02044 VTT, Finland. Internet: [email protected] P. Saranpää Metla - The Finnish Forest Research Institute, J. Repola P.O. Box 18, FIN-01301 VANTAA, Finland Internet: [email protected], [email protected] ABSTRACT The effect of growth site, felling time (winter, spring and autumn) and wet storage on the discoloration of spruce (Picea abies (L.) Karst.) and pine (Pinus sylvestris L.) dried at different temperatures was studied. Two dominant trees were selected at each cutting season from a fertile and a poor site. Some of the logs felled in May were stored under sprinklers for 6 weeks. The butt logs were cant-sawn with a circular saw. The temperatures for drying were 50, 70, 90 and 110 °C. One group from autumn felling was dried in a vacuum kiln at 70 °C. Common drying schedules for 38-mm-thick pine boards were used. The surface colour (CIELAB L*, a*, b*) of boards was measured before and after drying with a spectrophotometer. Some of the boards were also measured after 0.5 mm and further 1.5 mm planing. Drying temperature was the most significant factor for discoloration of boards. The colour change of pine was quite similar to that of spruce except that there was a stronger darkening of pine heartwood compared to spruce at 90 °C. Discoloration in sapwood increased remarkably at temperatures above 70 °C. At 90 and 110 °C the lightness (L*) decreased significantly indicating darkening. -
Innovations in Heavy Timber Construction • © 2011 Woodworks
I NNOVAT I ONS I N T I MBER C ONSTRU C T I ON eavy timber construction—used for hundreds of years around the world—successfully combines the Combining beauty of exposed wood with the strength and fire the Beauty Hresistance of heavy timber. The traditional techniques used in ancient churches and temples, with their of Timber high-vaulted ceilings, sweeping curves and enduring strength, still influence today’s structures. The hallmarks of heavy timber—prominent wood beams and timbers—now also include elegant, leaner framing that celebrates the with Modern expression of structure with a natural material. A visual emphasis on beams, purlins and connections lends character and a powerful aesthetic sense Construction of strength. Historically a handcrafted skill of mortise and tenon joinery, heavy timber construction has been modernized by tools such as CNC machines, high- strength engineered wood products, and mass-production techniques. A growing environmental awareness that recognizes wood as the only renewable and sustainable structural building material is also invigorating this type of construction. Heavy timbers are differentiated from dimensional lumber by having minimum dimensions required by the building code. Modern versions include sawn stress-grade lumber, timber tongue and groove decking, glued-laminated timber (glulam), parallel strand lumber (PSL), laminated veneer lumber (LVL) and cross laminated timber (CLT). Structural laminated products can be used as solid walls, floors and columns to construct an entire building. Modern heavy timber construction contributes to the appeal, comfort, structural durability and longevity of schools, churches, large-span recreation centers, mid-rise/multi-family housing and supermarkets, among many other buildings. -
Variation of Basic Density and Brinell Hardness Within Mature Finnish Betula Pendula and B
VARIATION OF BASIC DENSITY AND BRINELL HARDNESS WITHIN MATURE FINNISH BETULA PENDULA AND B. PUBESCENS STEMS Henrik Herujarvi Research Scientist Finnish Forest Research Institute Joensuu Research Centre P.O. Box 68 FIN-80101 Joensuu, Finland (Received November 200 1 ) ABSTRACT Thc objective of this study was to analyze the variation in basic density between different horizontal and vertical locations within mature Finnish Betula pendula and B. puhescens stems. In addition, the depen- dence of Brinell hardness in radial direction, which is of importance especially for the parquetry, veneer. and plywood industries, on the basic density was investigated. Furthermore, the sources of error in the Brinell hardness test according to EN 1534 were analyzed. Both basic density and Brinell hardness were measured from small. defect-free specimens. The average basic density of B. pendula and B. pubescerz.s were 5 12 kg/m3 and 478 kg/m3, respectively. Concerning both birch species, wood material near the pith was clearly less dense than near the surface of the stem. The average Brinell hardness of B. pendula spec- irnens was 23.4 MPa, and that of B. pubescens specimens was 20.5 MPa. Brinell hardness was found to be positively correlated with basic density. Therefore, the assumption that Brinell hardness varies within a birch stem similarly to basic density is confirmed. The test method according to the EN 1534 standard was found to hc precise enough hut unnecessarily laborious for hardness tests. Finally, an alternative method is s~~ggestedfor determining Brinell hardness on an industrial scale. Kryw,orti.c: Basic density. Brinell hardness, Betula pendul(~,Beruln puhescens, furnishing, parquet, veneer, plywood. -
Investigation of the Suitability of Finger Jointed Structural Timber for Use in Nail Plated Roof Trusses
University of Southern Queensland Faculty of Engineering and Surveying Investigation of the Suitability of Finger Jointed Structural Timber for Use in Nail Plated Roof Trusses A dissertation submitted by Anthony Glen Dakin In fulfilment of the requirements of Courses ENG4111 and ENG4112 Research Project Towards the degree of Bachelor of Engineering (Civil Engineering) Submitted: October, 2011 Abstract The most common method of roof framing employed by Australian builders in modern construction is the use of pre-fabricated nail plated timber roof trusses. These trusses are predominantly manufactured from structural framing timber limited in length to a maximum of 6 metres. The style and size of houses increasingly preferred by Australian homeowners means that trusses are regularly required to span further than 6 metres. Truss manufacturers therefore use larger or additional nail plates to splice members during fabrication, and the assembly process becomes far more complex. Finger jointing of sawmill off-cuts and other short lengths of timber is a means of manufacturers economically producing timber in longer lengths. This dissertation investigates the suitability of using finger jointed structural timber for the fabrication of nail plated roof trusses. Physical testing and statistical analysis has been used to compare the performance of finger jointed structural timber with standard structural framing timber normally used in truss fabrication. This study involved characterizing the mechanical properties of the timber, as well as assessing the performance of joints including mechanical fasteners. These methods, along with the static modelling of loading situations, were also used to quantify the probability of inducing failures unique to finger jointed timber, during the truss fabrication and erection process. -
Carbide Tipped Annular Cutters Are Engineered for Cutting 3” and 4” Thick Steel, Pipe, and Square Channel
Innovative Cutting Tool Solutions 2011 Product Catalog Your Productivity Partner Professional Grade Products Champion has been dedicated to servicing professionals with industrial grade products and services since 1897. Our product range includes twist drills, end mills, taps, dies, cutters, power tools, and masonry tools that are engineered for peak performance. Our distribution network serves cutting tool users in all fifty U.S. States, and is expanding internationally. Our commitment to same-day shipping and superior technical support give you, our customer, the Champion Edge. Innovative Cutting Tool Solutions Our CT5 Carbide tipped hole cutter has been completely redesigned. The result is faster hole penetration, and longer tool life. The design enhancements include a new carbide tip pocket for faster chip evacuation, improved carbide tips, stepped pilot drill for smoother penetration, and stiffer spring for positive slug ejection. The new CM95X series of SDS-Plus hammer bits features a “solid-tip” which penetrates rebar-imbedded concrete. These state of the art SDS-Plus bits penetrate the toughest aggregates including Vermont granite. Champion’s iPac system provides professional grade cutting tools in individual and combination packs. The iPac range includes twist drills, taps, and screw extractors. DT22HEX combination drill and taps create a hole and thread in one application. Available in NC/NF, and metric sizes, these industrial quality tools are available from 6-32 machine screw size to 1/2-13. Perfect for industrial, MRO and electrical professions. Champion’s CT9 was designed in conjunction with locksmiths whose work requires the installation of locksets in steel doors. CT9 hole cutters enable quick drilling of 1-1/2” and 2-1/8” holes in steel doors. -
Timberpeg.Com ®
7759_01.qxd 6/19/07 3:26 PM Page 1 06 13 23/TIM BuyLine 7759 ® timberpeg.com 7759_02.qxd 6/19/07 3:28 PM Page 2 ® PROJECT: HERMITS OF CARMEL ARCHITECT: EDWARD S. MILLER, AIA imberpeg® is a national company with four sales offices and Independent Representatives across the United TStates. No matter where you are located, local technical assistance is only a phone call away. Since 1974 Timberpeg® has been offering timber framing solutions to architects, designers, builders and individuals. Over the years we have designed and produced thousands of true mortise and tenon timber framed structures for satisfied customers. We look forward to working with architects on their projects, whether residential or commercial. In fact, dozens of architects have chosen the TIMBERPEG® brand for their own homes. Timberpeg® uses the highest quality components available, including Select Structural grade Douglas fir and eastern white pine timbers. We precut traditional mortise and tenon frames, and ship them with the exterior building shell components to sites across the country and abroad. The Timberpeg® package includes structural insulated panels (SIPs) for the wall enclosure and features our vented “Wrap & Strap” system with tongue and groove panels for the roof enclosure. (SIPs as a roof enclosure and “Wrap & Strap” as a wall enclosure are available upon request but are not considered part of the standard Timberpeg® package.) Timberpeg® has a modular framing system, but also produces many custom frames, bent-style structures and trusses. In fact, our framing solutions are only limited by the capacity of the timber and your imagination.