1、 SURFACE VEHICLE INFORMATION REPORT Design Guidelines for Fiberboard Materials Issued 2004-08 Reaffirmed 2010-06 Superseding J1774 AUG2004J1774 REAF JUN2010 1. Scope This document provides information on the various fiberboard products, which are available for automotive application. It is intended
2、to give engineers and designers a better understanding of product usage, characteristics, properties and industry terminology. The following sections cover these topics: 2. General Product Information 3. Design Characteristics 4. Physical/Mechanical Properties 5. Fiberboard Definitions In sections 2
3、, 3 and 4 the fiberboard products are categorized. These sections give an overview of product types, with general information about characteristics and properties. In cases where product categories encompass more than one material or material grade, ranges were established to cover all of the produc
4、ts in that category. The individual companies that supply fiberboard products should be consulted for specific information about a particular product or application. 2. References 2.1 Applicable Publications: The following publications form a part of this specification to the extent specified herein
5、. Unless otherwise specified, the latest issue of publications shall apply: 2.1.1 SAE PUBLICATIONS Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. SAE J 315Fiberboard Test Procedure SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance t
6、he state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every f
7、ive years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, elect
8、ronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values
9、 your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J1774_201006 SAE J1774 Reaffirmed JUN2010 - 2 - 2.1.2 ASTM PUBLICATIONSAvailable from ASTM, 25 West 43rd Street, New York, NY 10036-8003. ASTM D 747Standard Test Method for Apparent Bending M
10、odulus of Plastics by Means of a Cantilever BeamASTM D 790D790-03 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials ASTM D 827Method of Test for Edge Tearing Strength of Paper (Withdrawn 1980) ASTM D 1037Standard Test Methods fo
11、r Evaluating Properties of Wood-Base Fiber and Particle Panel Materials3. General Product Information TABLE 1 Hardboard Moldable Mat Paperboard Direct Molded Description Board panel which is used flat or compression molded into shallow forms Mat sheet which is compression molded into three-dimension
12、al shapes A sheet which is die cut, and/or converted into shapes by scoring, bending or shallow forming A three- dimensional panel which is made by deposition of fibers onto a contoured form.Composition 96 99% wood fiber 1 - 4% resin and wax 79 - 94% wood fiber 6 - 21% resin, wax or other fibers75 -
13、95% recycled fiber 5 -25% polyethylenes, resins or other fibers 77 - 80% wood fiber 17-20% recycled fiber 3% other chemical additivesProductThicknessesOffered1.5 - 5.6 mm 1.5 - 6.3 mm .25 - 6.3 mm 2.3 - 4 mm ProductDensitiesOffered0.96 gm/cm30.6 - 1.0 gm/cm30.75 gm/cm30.60 gm/cm30.80 gm/cm3Typical A
14、utomotive Applications Spare tire covers Rear shelf panels Seat backs Door panels HeadlinersDoor panel inserts Map pockets Load floor panels Sun-visors Quarter trim panels Trunk trim supports Seat cushion supports Head rest inserts Wire harness covers Van floor panels Rear shelf panels Door panels C
15、onsole panels Quarter trim panels Seat backs Spare tire covers Map pockets Door panel inserts Load floor panels Door panel inserts Wire harness covers HeadlinersDoor panel inserts Door panels Glove box Map pockets Floor console, side & rear Rear shelf panel Quarter trim panel Sun -visors Seat backs
16、Trunk lining HeadlinersLoad floors Van floor panels Door panels Console panels Rear shelf panels Quarter trim panels Seat backs Instrument panels SAE J1774 Reaffirmed JUN2010 - 3 - 4. Design Characteristics TABLE 2 Hardboard Moldable Mat Paperboard Direct Molded Draw Capabilities 75 mm LimitedOne di
17、rection bends Good - Excellent Fair - Excellent (depends on part geometry) Limited ExcellentExcellentMinimum Draft Angle 10 - increases as draw depth increases 3 - increases as draw depth increases Limited 3 - 5 Radius Capabilities - minimum inside - minimum outside3 x material thick 4 x material th
18、ick 0 mm 1 x material thick Limited 3 mm 3 mm Molded Return Flange No Yes Yes Yes Score & Bend No No Yes No Trimming Method Die cut In-mold Die cut Die cut Trim press In-moldFastener Attachment In-mold BondedStaked-onRivetedKeyhole slot In-moldBondedStaked-onRivetedKeyhole slot BondedStaked-onIn-mol
19、dBondedStaked-onRivetedKeyhole slot Direct injection mold Vibration welded Graining/Embossing Fair Good Excellent Excellent Color Natural Natural & Black Multiple Natural & Black Painting Good Fair-Good Excellent Good Printable No No Yes No In mold finishing - Overlays - Decorative scrims NoNoYes Ye
20、s NoNoNoNoAdhesion- Solvent base - Water base ExcellentExcellentExcellentExcellentExcellentExcellentExcellentExcellentVacuum-formed covering capability Excellent(porous material) Excellent(porous material) Good Excellent (porous material) Edge-fold coverings Yes Yes Yes Yes Integral foam paddingbetw
21、een substrate and covering Yes Yes Yes Yes Dielectric bondable Yes Yes Yes Yes Multiple thickness and density in same part No Ye No YeSAE J1774 Reaffirmed JUN2010 - 4 - 5. Physical/Mechanical Properties (Typical for 2.5 mm thick board) TABLE 3 Hardboard Moldable Mat Paperboard Direct Molded Nominal
22、Density (gm/cm3) 0.96 0.90 - 1.00 0.75 0.60 - 0.80 Flexural Strength, MOR- ASTM D 1037 (MPa) (psi) - ASTM D 790 (MPa) (psi) 426000NA42 - 59 6000 - 8500 NANANANA15 -27 2200 - 4000 Flexural Stiffness - MOE, ASTM D 1037 (MPa) (psi) - Stiffness, ASTM D 747 (MN/m)3800550,000NA4200 - 5500 600,000- 800,000
23、 NANA560 MD 220 CD 3100450,000NATensile Strength- ASTM D 1037 (MPa) (psi) -ASTM D 828 (MPa) (psi) 253600NA28 - 31 4000 - 4500 NANA47 MD 16 CD 6830 MD 2400CD 20 - 22 2900 - 3200 NABurst (MPa) SAE J315 (psi) 2.43502.4 - 2.6 350 - 380 3.4500 0.84 120Moisture Content (%) SAE J3154.5 3 - 5 4 - 7 3 - 6 Di
24、mensional Stability (%) - Expansion(1)(38 C, 98% RH) - Expansion(2)(24 hr H2O soak) - Contraction(3)(88 C, 24 hr) - Contraction(4)(88 C, 24 hr) 0.20.40.20.40.20.40.20.40.2 MD 0.6 CD 0.2 MD 0.6 CD 0.2 MD 0.6 CD 0.2 MD 0.6 CD 0.20.20.20.2Water Absorption, 24 hr (%) SAE J315 34 25 - 35 18 50 Thickness
25、Swell, 24 hr (%) SAE J315 17 10 - 25 6-10 25 Flammability (mm/min) FMVSS 302 25 SE - 30 SE/NBR SE/NBR Coefficient of Thermal Expansion (10-6/C) 6.8 6.8 - 8.3 NA NA Maximum Service Temp. (C) 150 150 100 - 150 150 Biodegradable Yes Yes Yes Yes Thermally Recyclable(5)Yes Yes Yes Yes 1. SAE J315 Method
26、A 2. SAE J315 Method B 3. SAE J315 Method C - following expansion method A 4. SAE J315 Method C - following expansion method B 5. Can be safely and efficiently used as fuel for energy generation SAE J1774 Reaffirmed JUN2010 - 5 - 6. Fiberboard Definitions 6.1 Bending Board A paperboard that can be c
27、reased or scored and subsequently bent to varying degrees, with little or no fracture of the surface fibers. In some cases, the visual requirements of the bent score area is obtained by covering the surface with an extensible coating or by laminating a pliable film to the surface prior to scoring an
28、d bending. 6.2 Chipboard A type of paperboard produced primarily from mixed grades of waste paper and most often produced on a cylinder machine. The final product may be single ply or laminated. 6.3 Contraction A measure of the reduction in linear dimensions of fiberboard due to the removal of water
29、 vapor or liquid water.6.4 Creasing A method of scoring paperboard, without bending. 6.5 Cross Machine Direction The opposite of machine direction. (See machine direction.) 6.6 Direct Molded Board A molded fiberboard that is produced by depositing fibers directly on a contoured form. This fibrous st
30、ructure is then compressed and heat cured to attain its final thickness, density and strength. Fibers can be deposited on the form by either an air stream or water solution.6.7 Dry-Process Board A fiberboard made by transporting, distributing and felting the fiber mixture in an air medium. The fiber
31、s are felted into a mat with an air-lay machine. Moldable mat and some hardboards are made by this process.6.8 Embossed Board A fiberboard which has surface relief or texture which has been applied with an embossing roll or plate. 6.9 Expansion A measure of the increase in linear dimensions of fiber
32、board due to the absorption of water vapor or liquid water. SAE J1774 Reaffirmed JUN2010 - 6 - 6.10 Fiberboard A general term for fibrous structures produced on any of several types of fiber felting machines. The primary composition of these boards is normally refined cellulose or matted wood fibers
33、 that may be supplemented by the use of synthetic materials or chemical additives. The manufacture of fiberboards involves the formation of a web of fibers, which is subsequently pressed or calendered and sometimes laminated to develop desired end-use properties. 6.11 Forming Board A paperboard or h
34、ardboard which is suitable for shallow forming into three-dimensional shapes through the use of heat and pressure applied in a set of matched dies.6.12 Foundation Board A fiberboard which is used as a structural foundation or supporting member in a trim panel assembly. 6.13 Furnish The formula of in
35、gredients used for manufacturing a fiberboard. Most commonly used when referring to wet process board manufacture. 6.14 Grained Board Another term for embossed board. (See embossed board.) 6.15 Grain Direction Another term for machine direction. (See machine direction.)6.16 Hardboard A fiberboard ma
36、nufactured primarily from inter-felted wood fibers which are consolidated under heat and pressure in a hot press. Other materials (i.e. bonding resins, sizing agents, colorants) may be added during manufacture to improve certain physical properties.6.17 Kraft Paper A type of unbleached paper that is
37、 made from sulfate chemical pulps. It is sometimes used as a liner for laminated paperboard. 6.18 Laminated Board A paperboard that is comprised of two or more plies of paper, or other sheet materials, which are bonded together by an adhesive between the plies. The adhesion of the finished structure
38、 is such that it will function as a single unit. SAE J1774 Reaffirmed JUN2010 - 7 - 6.19 Machine Direction A term which is used to describe the direction of fiber alignment in a fiberboard product. “Machine direction“ means that a majority of the fibers, which comprise the product, are aligned with
39、their long axis parallel to the direction of travel through the manufacturing process. This alignment of fibers results in a directional difference in properties. The various fiberboard products have varying degrees of directionality: paperboard has the highest degree of alignment (strongest machine
40、 direction), wet-process hardboard has a minor degree of alignment, moldable mat products have some or no alignment (depending on the manufacturing equipment) and dry-process hardboard and direct molded products have essentially no fiber alignment. 6.20 Moldable Mat A loosely structured web of prima
41、rily cellulosic fibers (usually wood) which is molded into three-dimensional, contoured fiberboard parts. During molding, the mat is compressed and heated to attain its final thickness, density and strength. Moldable mats generally contain various combinations of other fibers (i.e. synthetic, glass,
42、 organic) and resins to promote forming and achieve end-use properties.6.21 Paperboard A sheet manufactured primarily from cellulosic fibers which is die cut and/or converted into shapes by scoring, bending or shallow forming. 6.22 Sizing A term which refers to a fiberboards resistance to liquid wat
43、er penetration and to the process and chemicals for developing this resistance. Typical sizing chemicals are rosin and wax. 6.23 Subfoundation Board A paperboard used as a subfoundation, such as a carrier for trim coverings. 6.24 Wet Machine Board A paperboard that is produced on a one cylinder wet
44、machine. It is manufactured by building up wet plies of refined cellulose fibers from a continuous web. When the desired thickness of board has been reached, the wet web is removed from the cylinder as a sheet. This sheet is then pressed, dried and calendered to the desired finished thickness. 6.25
45、Wet-Process Board A fiberboard made by transporting, distributing and felting the fiber mixture in a water medium. Wet-process boards are generally produced on fourdrinier or cylinder machines. Paperboards and most automotive hardboards are made by this process.PREPARED BY THE SAE TEXTILES AND FLEXI
46、BLE PLASTICS COMMITTEE SAE J1774 Reaffirmed JUN2010 - 8 - RationaleNot Applicable. Relationship of SAE Standard to ISO Standard There is no relationship to any ISO standard. ApplicationThis document provides information on the various fiberboard products, which are available for automotive applicati
47、on. It is intended to give engineers and designers a better understanding of product usage, characteristics, properties and industry terminology.The following sections cover these topics: 2. General Product Information 3. Design Characteristics 4. Physical/Mechanical Properties 5. Fiberboard Definit
48、ions In sections 2, 3 and 4 the fiberboard products are categorized. These sections give an overview of product types, with general information about characteristics and properties. In cases where product categories encompass more than one material or material grade, ranges were established to cover
49、 all of the products in that category. The individual companies that supply fiberboard products should be consulted for specific information about a particular product or application.Reference Section SAE J 315Fiberboard Test Procedure ASTM D 747Standard Test Method for Apparent Bending Modulus of Plastics by Means of a Cantilever BeamASTM D 790D790-03 Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating
