1、Designation:D296904(Reapproved 2014)Standard Test Methods forSteel Tire Cords1This standard is issued under the fixed designation D2969;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses
2、 indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the testing of cords made fromsteel that are specifically designed for use in the reinforcementof pneumatic tires.By agreement,these te
3、st methods may beused to test similar cords or filaments used for reinforcing otherrubber products.The steel cords may be wound on spools orbeams.The steel cords may also be woven into fabric,in whichcase they must be removed from the fabric prior to testing.NOTE1For other methods of testing tire co
4、rds and tire cord fabrics,refer to Methods D885,Test Methods D1871,Specifications D122,andTest Methods D2692 and D2970/D2970M.For tolerances on tire cordsand tire cord fabrics,refer to Specifications D122 and Methods D885.1.2 These test methods include test procedures only;they donot establish speci
5、fications or tolerances.1.3 This test method includes the following sections:SubjectSectionAdhesion of Steel Cords and Filaments to Elastomers16Brass Coating Composition and Mass14,15Breaking Force(Strength)10Construction12Data Form for Reporting Test ResultsAppendix X1Elongation at Break10Elongatio
6、n Between Defined Forces(EDF)11Flare8Lay12Linear Density9Visual Appearance8Nomenclature SystemAnnex A1Residual Torsions8Straightness8Thickness and Out-of-Roundness131.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the u
7、ser of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.See 14.3 and Note11.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenc
8、ed Documents2.1 ASTM Standards:2D76 Specification for Tensile Testing Machines for TextilesD122 Tolerances for Tire Fabrics Other Than Tire CordFabrics(Withdrawn 1993)3D123 Terminology Relating to TextilesD885 Test Methods for Tire Cords,Tire Cord Fabrics,andIndustrial Filament Yarns Made from Manuf
9、acturedOrganic-Base FibersD1871 Test Method for Adhesion Between Tire Bead Wireand RubberD2229 Test Method for Adhesion Between Steel Tire Cordsand RubberD2692 Test Method for Air Wicking of Tire Fabrics,TireCord Fabrics,Tire Cord,and YarnsD2904 Practice for Interlaboratory Testing of a Textile Test
10、Method that Produces Normally Distributed Data(With-drawn 2008)3D2970/D2970M Test Methods for Testing Tire Cords,TireCord Fabrics,and Industrial Yarns Made From GlassFilamentsD4393 Test Method for Strap Peel Adhesion of ReinforcingCords or Fabrics to Rubber CompoundsD6477 Terminology Relating to Tir
11、e Cord,Bead Wire,HoseReinforcing Wire,and FabricsE663 Practice for Flame Atomic Absorption Analysis(With-drawn 1997)32.2 International Bureau for the Standardization of Man-Made Fibers(BISFA):Internationally Agreed Methods for Testing Steel TireCords43.Terminology3.1 Definitions:3.1.1 For definition
12、s of terms relating to tire cord,bead wire,hose wire,and tire cord fabrics,refer to Terminology D6477.1These test methods are under the jurisdiction of ASTM Committee D13 onTextiles and are the direct responsibility of Subcommittee D13.19 on IndustrialFibers and Metallic Reinforcements.Current editi
13、on approved May 15,2014.Published June 2014.Originallyapproved in 1971.Last previous edition approved in 2010 as D2969 04(2010).DOI:10.1520/D2969-04R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandar
14、ds volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from BISFA,Lauren Garten Strasse 12,PO Box,CH-4010 BASLESwitzerland.Copyright ASTM International,100 Barr Harbor Drive,
15、PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.1.1 The following terms are relevant to this standard:core,direction of lay,flare,high elongation,in steel tire cord,length of lay,residual torsion,steel cord,steel cord wrap,steelfilaments,steelstrand,straightness,in steel cord,and wild
16、ness.3.1.2 For definitions of other terms related to textiles,referto Terminology D123.3.1.2.1 The following terms are relevant to this standard:direction of twist.4.Summary of Test Method4.1 A summary of the test methods prescribed for thedetermination of specific properties is stated in each of thesections pertaining to the respective properties.5.Significance and Use5.1 The procedures in Test Methods D2969 for the determi-nation of the properties of steel tire cord and related materialsare co
