ASTM D3389-2016 Standard Test Method for Coated Fabrics Abrasion Resistance (Rotary Platform Abrader)《涂层织物的耐磨性 (旋转平台式研磨机) 的标准试验方法》.pdf
《ASTM D3389-2016 Standard Test Method for Coated Fabrics Abrasion Resistance (Rotary Platform Abrader)《涂层织物的耐磨性 (旋转平台式研磨机) 的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D3389-2016 Standard Test Method for Coated Fabrics Abrasion Resistance (Rotary Platform Abrader)《涂层织物的耐磨性 (旋转平台式研磨机) 的标准试验方法》.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D3389 16Standard Test Method forCoated Fabrics Abrasion Resistance (Rotary PlatformAbrader)1This standard is issued under the fixed designation D3389; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This test method covers the determinat
3、ion of the wearresistance of fabrics coated with rubber or plastics to abrasion.The abrasion is measured by mass loss or number of cyclesrequired to wear through the coating to initially expose the basefabric.1.2 The values stated in SI units are to be regarded as thestandard. The values given in pa
4、rentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limita
5、tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D1349 Practice for RubberStandard Conditions for Test-ingD1566 Terminology Relating to RubberE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Pr
6、ecision of a Test MethodG195 Guide for Conducting Wear Tests Using a RotaryPlatform Abraser3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 abrader, na wear testing instrument, also referred toas a rotary platform tester or abraser.3.1.2 abrasion cycle, nin abrasion testing, on
7、e or moremovements of the abradant across a material surface, or thematerial surface across the abradant, that permits a return to itsstarting position.3.1.2.1 DiscussionIn the case of the rotary platform testmethod, it consists of one complete rotation of the specimen.3.1.3 resurface, vthe preparat
8、ion of an abrasive wheel ona resurfacing disc or diamond tool wheel refacer, prior to use orduring testing.3.2 For definitions of other terms used in this test method,refer to Terminology D1566.4. Summary of Test Method4.1 Abrasion resistance of fabrics coated with rubber orplastics is measured by s
9、ubjecting the specimen to the rotary-rubbing action of two abrasive wheels under controlled condi-tions of pressure by the use of the rotary platform abrader. Thetest specimen, mounted on a turntable platform, turns on avertical axis against the sliding rotation of two abradingwheels. One abrading w
10、heel rubs the specimen outward towardthe periphery and the other, inward toward the center. Theresulting abrasion marks form a circular pattern of crossed arcsover an area of approximately 30 cm2. Resistance to abrasionis evaluated by average mass loss, wear index (average massloss per revolution) o
11、r cycles required to wear through thecoating to expose the yarn in the base fabric.5. Significance and Use5.1 Abrasion resistance tests are intended to measure thewear resistance properties of a material. This may be correlatedto expected end use performance.5.2 The resistance of coated fabrics to a
12、brasion, as measuredon a testing machine in the laboratory, is generally only one ofseveral factors contributing to wear performance or durabilityas experienced in the actual use of the material. While abrasionresistance (often stated in terms of the number of abrasioncycles) and durability are freq
13、uently related, the relationshipvaries with different end uses and different factors may benecessary in any calculation of predicted durability fromspecific abrasion data. This test method provides a comparative1This test method is under the jurisdiction of ASTM Committee D11 on Rubberand Rubber-lik
14、e Materials and is the direct responsibility of Subcommittee D11.15on Degradation Tests.Current edition approved April 15, 2016. Published November 2016. Originallyapproved in 1975. Last previous edition approved in 2015 as D3389 15. DOI:10.1520/D3389-16.2For referenced ASTM standards, visit the AST
15、M website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Ha
16、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1ranking of material performance, which can be used as anindication of relative end-use performance.5.3 The resistance of coated fabrics to abrasion may beaffected by factors including test conditions, type of abradant,pressure
17、between the specimen and abradant, mounting ortension of the specimen, and type, kind, or amount of finishingmaterials.5.4 The measurement of the relative amount of abrasionmay also be affected by the method of evaluation and may beinfluenced by the judgment of the operator.6. Apparatus6.1 Abrasion
18、Apparatus,3as described in Guide G195 and,comprised of a removable flat circular specimen holderturntable, a pair of pivoted arms to which the abrasive wheelsare attached, a motor for rotating the specimen holder, avacuum unit and nozzle for removal of abraded particles duringtest, and a counter for
19、 indicating the revolutions of thespecimen holder. See Fig. 1.6.1.1 The specimen holder turntable shall be mounted toproduce a circular surface travel of an essentially flat specimenin the plane of its surface at a uniform angular velocity. Thespeed of rotation of the turntable shall be 7.5 6 0.21 r
20、ad/s (726 2 rpm) for 110 V/60 Hz or 6.9 6 0.21 rad/s (60 6 2 rpm)for 230 V/50 Hz operation.6.1.2 A clamping ring, washer and knurled nut shall be usedto secure the specimen to the specimen holder.6.1.3 The abrasive wheels, which are attached to the freeend of independently pivoted arms, shall rotate
21、 and have, whenresting on the specimen, a peripheral engagement with thesurface of the specimen, the direction of travel of the peripheryof the wheels and of the specimen at the contacting portionsbeing at acute angles, and the angle of travel of one wheelperiphery being opposite to that of the othe
22、r. Motion of theabrasive wheels, in opposite directions, shall be provided byrotation of the specimen and the associated friction therefrom.6.1.4 The apparatus shall be provided with a vertical-forceadjustment (auxiliary masses) for varying the vertical force ofthe abrader wheels on the specimen. Th
23、e pivoted abrader armswithout auxiliary masses or counterweights shall apply avertical force against the specimen of 2.45 N (250 gf) perwheel. Auxiliary masses may be used to apply a vertical forceagainst the specimen of 4.9 N (500 gf) per wheel or 9.8 N(1000 gf) per wheel. Vertical force references
24、 are per arm (notcombined), and include the mass of the pivoted arm but not themass of the abrading wheel.6.2 Abrasive Wheels3A wheel that is 13 mm (0.5 in.)thick and approximately 50 mm (2 in.), but no less than 44.4mm (1.75 in.) in diameter, which is manufactured in differentgrades of abrasive qua
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