ASTM钢铁标准.A987_图文

Designation:A987–05

StandardTestMethodfor

MeasuringShapeCharacteristicsofTinMillProducts

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ThisstandardisissuedunderthefixeddesignationA987;thenumberimmediatelyfollowingthedesignationindicatestheyearof

originaladoptionor,inthecaseofrevision,rinparenthesesindicatestheyearoflastreapproval.A

superscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.

1.1Shapeisasignificantqualitycharacteristicfortinmill

-shapeisaffectedbymillprocessfactorsplus

thetemper,

thepurposeofthistestmethodtodefineaccuratelythedifferent

plateshapecharacteristicsandtodescribethemethod(s)most

commonlyusedtomeasureparticularcharacteristics.

1.2Quantitativelimitsarenotaddressedandshouldbe

establishedonanindividualproduceranduserbasis,where

appropriate.

1.3Thisstandarddoesnotpurporttoaddressthesafety

concerns,ifany,eresponsibility

oftheuserofthisstandardtoestablishappropriatesafetyand

healthpracticesandtodeterminetheapplicabilityofregula-

torylimitationspriortouse.

ncedDocuments

2.1ASTMStandards:

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A599/A599MSpecificationforTinMillProducts,Elec-

trolyticTinCoated,Cold-RolledSheet

A623SpecificationforTinMillProducts,GeneralRequire-

ments

A623MSpecificationforTinMillProducts,GeneralRe-

quirements[Metric]

A624/A624MSpecificationforTinMillProducts,Elec-

trolyticTinPlate,SingleReduced

A625/A625MSpecificationforTinMillProducts,Black

Plate,SingleReduced

ThistestmethodisunderthejurisdictionofASTMCommitteeA01onSteel,

StainlessSteel,andRelatedAlloysandisthedirectresponsibilityofSubcommittee

A01.20onTinMillProducts.

CurrenteditionapprovedMarch1,ally

eviouseditionapprovedin2000asA987-00.

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ForreferencedASTMstandards,visittheASTMwebsite,,or

contactASTMCustomerServiceatservice@ualBookofASTM

Standardsvolumeinformation,refertothestandard’sDocumentSummarypageon

theASTMwebsite.

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A626/A626MSpecificationforTinMillProducts,Elec-

trolyticTinPlateDoubleReduced

A650/A650MSpecificationforTinMillProducts,Black

Plate,DoubleReduced

A657/A657MSpecificationforTinMillProducts,Black

PlateElectrolyticChromium-Coated,SingleandDouble

Reduced

fication

3.1Thesubstrateshallconformtoalltherequirementsof

theappropriatespecificationsasfollows:SpecificationsA623,

A623M,A599/A599M,A624/A624M,A625/A625M,

A626/A626M,A650/A650M,andA657.

ficanceandUse

4.1Thedefinitionsandproceduresformeasuringshape

characteristicsoftinmillproductsareprovidedsothatpur-

chasersandsuppliershavecommonmeasuringproceduresand

defiroceduresprovide

definitionsandmeasuringtechniquesofshapecharacteristics.

Theintentionofthesedefinitionsandmeasuringmethodsisnot

toprovideadimensionalspecificationforshapecharacteristics,

butrathercommonprocedure(s)forquantifyingshapeanoma-

lies.

erences

5.1Measurementofshapeoftenhasbeensubjective,atbest.

Successfulmeasurementofvariousshapeanomaliesonquan-

titativetermsrequiresrecognitionofseveralfactorsthatcan

interferewithaccuratemeasurements.

ementofseveral

anomaliesrequirelayingofthesampleonaflatsurface.A

machinedflasampleona

floormayintroduceerrorduetoareasonafloorthatarenot

flat.

Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.

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A987–05

5.1.2Severalanomaliesaremeasuredbyhangingthesheet.

Hangingbyholdingthesamplewithahandcanintroduceerror

frompressuresexertedbyfinicalsingledevice

clamptohelpholdthesesamplesisrecommended.

5.1.3Stepblockgagesortaperedgagesshouldbechecked

dirtbuild

upcouldaffectaccuracy.

5.1.4Computer-basedshapemeasuringinstrument

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table

sheetsamplemustbedamagefree.

tus

6.1Appropriatetoolstomeasureshapeanomaliesarede-

scribedalongwithdrawings(attached)asrequired.

6.1.1FlatSurfaces—Accuratemeasurementsofshape

anomaliesrequireaflatsurface,machinedflatpreferred.

6.1.2MachinedStepblockGage—See

Fig.3,typically,

stepsarein

1

⁄

16

-ents.

6.1.3TaperedGage—SeeFig.4.

6.1.4StandardRulerorTapeMeasure.

6.1.5HandMicrometer.

6.1.6ShapeTestJig—Fig.5,orothershapetestjigsof

appropriatedesign.

6.1.7Light-WeightStraight-Edge.

6.1.8Computer-basedshapemeasuringinstruments

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are

designedforflatnessmeasurementsonsamplesofcoldrolled

temconsistsofa

largesteeltable,computer-basedoperator’sconsole,anda

motor-drivenbridgecontainingoneormoreLVDTposition

sensorstocontactthestriporbyuseofalasersensor,

noncontactmeasuringsystem.

ure

DefinitionsandMeasuringMethodsofShape

Anomalies

7.1WavyEdge(See

Fig.6):

7.1.1Definition—Aseriesofrollingdirectionedgedevia-

tionsfromarecognizedflampleisplaced

onarecognizedflattable,wavyedgeswillappearasundula-

tionsalongtheedge,havingtheheight(A)andameasurable

cycle(B).Thisdefectcanbequantifiedusingthe“I”unit(see

Section

8)orsteepnesscalculations.

7.1.2MeasuringMethods:

7.1.2.1Asampleofapproximately3ft[0.9m]inlengthby

coilwidthisplacedonafletheheight(A)at

thepeakpointofeachwavefromtherecognizedflatsurface

asurethe

cyclelength(B)frompeaktopeakofeachwavewitharuler

ortapemeasure.

7.1.2.2Measureusingthecomputer-basedshapemeasuring

instrumentorotherinstrumentofappropriatedesign.

7.2RidgeBuckle,QuarterBuckle,CenterBuckle(see

Fig.

7

):

7.2.1Definition—Thesebucklesarecontinuousdeviations

fromarecognizedflatsurfaceoccurringusuallyinnarrow

widthareasparalleltotherollingdirectionotherthanatthe

sheetedges.

7.2.2MeasuringMethods:

7.2.2.1Asheetsampleofapproximately3ft[0.9m]bycoil

widthisplacedonaflterialdiagonallyalong

thesampletowithin4in.[10cm]oftheselectedcornerand

measuretheverticalupliftusingataperedgageorastepblock

gage.

7.2.2.2Shearthroughthecenterlineoftheshapeanomaly

andmeasureasanedgewaveusingataperedgageora

stepblockgage.

7.2.2.3Measureusingthecomputer-basedshapemeasuring

instrumentorotherinstrumentofappropriatedesign.

7.3FullCenter(see

Fig.8):

7.3.1Definition—Anyoveralldeviationofasheetfroma

recognizedflatsurfaceoccurringoveramajorportionofthe

sheetwidthparalleltotherollingdirectionotherthanatthe

sheetedges.

7.3.2MeasuringMethods:

7.3.2.1Asheetsampleofapproximately3ft[0.9m]bycoil

widthisplacedonaflterialdiagonallyalong

thesampletowithin4in.[10cm]oftheselectedcornerand

measuretheverticalupliftusingataperedgageorastepblock

gage.

7.3.2.2Shearthroughthecenterlineoftheshapeanomaly

andmeasureasanedgewaveusingataperedgageora

stepblockgage.

7.3.2.3Measureusingthecomputer-basedshapemeasuring

instrumentorotherinstrumentofappropriatedesign.

7.4EdgeLift(see

Fig.9):

7.4.1Definition—Anydeviationofonesheetedgeother

geliftisparalleltotherolling

directionandriseswhenplacedonarecognizedflatsurface.

7.4.2MeasuringMethod—Asheetsampleofapproxi-

mately3ft[0.9m]bycoilwidthisplacedonafl

materialdiagonallyalongthesheettowithin4in.[10cm]of

theselectededgeandmeasuretheverticaldistance(A)witha

taperedgage,astepblockgage,orastandardruler.

7.5CoilSetandReverseCoilSet(see

Fig.10):

7.5.1Definition—Abowconditionordeviationinthesheet

asmeasuredfromarecognizedfliationruns

parallelwiththerollingdirectionandtakestheshapeofacoil.

reeofcoil

setusuallyisdeterminedinavertical,free-hangingposition

heshapetestjig

(Fig.5)ishighlyrecommendedforthismeasurement.

7.5.2MeasuringMethods:

7.5.2.1Asheetsampleofapproximately3ft[0.9m]bycoil

widthshouldbeheldbyaclamporwiththethumbandindex

fiesampleinthecenteroftherollingdirection

esample’sedgesagainstarecognized

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Thesolesourceofsupplyofthecontactornoncontactflatnessmeasuring

instrumentknowntothecommitteeatthistimeisSP&CComputerSystems,Inc.,

7292ParkDrive,Bath,s.1and2ofthenoncontact,lasersensor,

nstrumentsofappropriatedesign

reawareofalternativesuppliers,pleaseprovidethis

mmentswillreceive

carefulconsiderationatameetingoftheresponsibletechnicalcommittee

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,which

youmayattend.

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