1、Designation:G5610Standard Test Method forAbrasiveness of Ink-Impregnated Fabric Printer Ribbonsand Other Web Materials1This standard is issued under the fixed designation G56;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year o
2、f last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the determination of the abra-siveness of ink-impregnated fabric printer ribbons and otherweb mater
3、ials by means of a sliding wear test.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all
4、 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 limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2G40 Terminology Relating
5、to Wear and Erosion3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 abrasive wear coeffcient(for a ribbon)a measure ofthe ability of the ribbon to wear surfaces with which it comesin contact.The larger the value,the greater the ability to causewear.The abrasive wear coefficient
6、determined by this methodis directly proportional to the volume of material removed fromthe steel sphere in the test.3.2 For additional terms pertinent to this test method,seeTerminology G40.4.Summary of Test Method4.1 A ribbon specimen is wrapped around the cylindricalsurface of a drum.A hardened s
7、teel sphere is pressed againstthe ribbon surface.While the drum rotates about its axis,thesteel sphere is slowly moved in an axial direction across thesurface of the ribbon(Note 1).After a specified amount ofsliding has occurred,the test is stopped and the volume ofmaterial removed from the steel sp
8、here is determined.Thisvolume is then used to compute an abrasive wear coefficient forthe ribbon specimen.NOTE1These two motions ensure that the unused ribbon is continu-ally supplied to the contact area of the wear specimen;however,thecontact region usually contains a mixture of unused and used rib
9、bonsurface.5.Significance and Use35.1 This test method differentiates between web materialson the basis of their ability to cause wear on surfaces withwhich they come in contact.This test method can also be usedto evaluate the wear resistance of different materials againstsuch web materials.6.Appara
10、tus46.1 Ribbon Support SurfaceThe overall shape of thismember is that of a cylindrical drum 48 6 1 in.(1220 625 mm)in diameter,concentric to within 0.0005 in.(0.013mm)total run-out,and 8.25+0.25 0 in.(210+6 0 mm)wide(see Fig.1).The support surface is the cylindrical surface.This surface shall be rig
11、id,made of metal(Note 2),and havea slot no greater than 0.020 in.(0.5 mm)in it so that the endsof the ribbon may be fed through into the interior.The interiorshall contain a mechanism to uniformly provide tension to theribbon specimen.This member shall be able to rotate about itsaxis and provide a l
12、inear velocity at the surface of the ribbonof 321 6 6 in./s(8150 6 150 mm/s).NOTE22024 aluminum with a minimum thickness of 0.25 in.1This test method is under the jurisdiction of ASTM Committee G02 on Wearand Erosion and is the direct responsibility of Subcommittee G02.30 on AbrasiveWear.Current edi
13、tion approved April 1,2010.Published April 2010.Originallyapproved in 1977.Last previous edition approved in 2005 as G5682(2005).DOI:10.1520/G0056-10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards
14、 volume information,refer to the standards Document Summary page onthe ASTM website.3Adiscussion of the wear process and the influence of various parameters on thewear can be found in Bayer,R.G.,“Wear by Paper and Ribbon,”Wear,Vol 49,1978,pp.147168 and Bayer,R.G.,“Mechanism of Wear by Ribbon and Pap
15、er,”IBM Journal of Research and Development,Vol 22,No.6,November 1978,pp.668674.4Supporting data(implementation of the apparatus required is discussed in“Testing Machine for the Evaluation of Wear by Paper,”)have been filed at ASTMInternational Headquarters and may be obtained by requesting Research
16、 ReportRR:G02-1000.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1(6.35 mm)is adequate.The roughness of this surface should not exceed 20in.(0.5 m),CLA.6.2 Wear Specimen SupportThis member shall be able topress a rigidly mounted 0.25-in.(6.35-mm)diameter sphericalwear specimen against the ribbon surface and advance thespecimen across the surface of the ribbon specimen in an axialdirection at a rate of 0.001 6 0.0001 in.(0.254 6 0.025