钢铁相关术语表英语Word文档格式.docx
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钢铁相关术语表英语Word文档格式.docx
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A
Aging-Changesinphysicalandmechanicalpropertiesthatoccurwhenlowcarbonsteelisstoredforsometime.
Agingisalsoacceleratedbyexposureofsteeltoelevatedtemperatures.
Annealing-Aprocessinvolvinghigh-temperatureheatingandcoolingoftheas-rolledcoldrolledsteelsubstratetomakeitsofterandmoreformable.
Returntotop
B
BackerCoat-Usuallyreferstothecoatingonthereversesideofaprepaintedsheet.Thebackercoatingisgenerallynotasnarrowlyspecifiedwithreferencetoitscolor,thicknessandcompositionasisthetopcoat.
C
Camber-Thedeviationofasideedgefromastraightline,themeasurementbeingtakenontheconcavesidewithastraightedge.
CarbonSteel-Steelwhichowesitspropertieschieflytocarbonwithoutsubstantialamountsofotheralloyingelements;
alsoknownasstraightcarbonsteelorplaincarbonsteel.
ChemicalTreatment-Anaqueoussolutionofcorrosion-inhibitingchemicals,typicallychromatesorchromate/phosphate.
CoilBreaks-Creasesorridgesinsheetthatappearasparallellinesacrossthedirectionofrolling,andthatgenerallyextendthefullwidthofthesheetorstrip.
AlsoreferredtoasLü
der'
sLines.
ColdRolledProducts-Flatrolledproductsforwhichtherequiredfinalthicknesshasbeenobtainedbyrollingatroomtemperature.
ColorStandard-Apaintedsheetpanelwithaprescribedcolorofpaintrepresentingtheprecisecoloritisintendedtoproduceintheprepaintedsheet.Thecolorstandardwillpreferablyalsobeexpressedintermsofphysicalattributesofhue,lightnessandsaturationcalledtristimulusvaluesorderivativesofthesevalues.Acompletecolorstandarddefinitionwillusuallyincludepaintedpanelsrepresentativeofthelimitsofacceptabledeviationfromtheprecisestandardcoloraswell.
CommercialSteel(CS)-Sheetofthisqualityisforsimplebendingormoderateforming.
CommercialSteelsheetcanbebentflatuponitselfinanydirectionatroomtemperature.
ContinuousCasting-Acastingtechniqueinwhichacastshapeiscontinuouslywithdrawnthroughthebottomofthemoldasitsolidifies,sothatitslengthisnotdeterminedbymolddimensions.
ConversionCoating-Thechemicaltreatmentfilmappliedtothesteelormetalliccoatedsheetpriortopainting.
Corrosion-Gradualchemicalorelectrochemicalattackonametalbyatmosphericmoistureorotheragents.
CriticalSurface-Intendedformaterialappliedtocriticalexposed/paintedapplicationswherecosmeticsurfaceimperfectionsareobjectionable.Theprimesidesurfacewillbefreeofrepetitivetypeimperfections,gouges,scratches,scaleandslivers.Thissurfacecanonlybefurnishedasapickledproduct.
Crown-Acontouronasheetwherethethicknessincreasesfromsomeedgemeasurementtothecenter.
CutEdge-Removaloftheas-rolledhotmilledge.Coilendsarecroppedbacktogaugewhencutedgeisordered.
CuttoLength-Whenaspecificordiscretelengthisspecified.
D
DeepDrawing-Theprocessofworkingmetalblanksindiesonapressintoshapeswhichareusuallymoreorlesscup-likeincharacter.
Drawing-Formingrecessedpartsbyforcingtheplasticflowofmetalindies.
DrawingSteel(DS)-SheetofthisqualityhasagreaterdegreeofductilityandismoreconsistentinperformancethanCommercialSteelbecauseofhigherstandardsinproduction,selectionandmeltingofthesteel.
DeepDrawingSteel(DDS)-SheetofthisdesignationshouldbeusedwhenDrawingSteelwillnotprovideasufficientdegreeofductilityforfabricationofpartshavingstringentdrawingrequirements,orapplicationsthatrequirethesheetbefreefromaging.Thisqualityismadebyspecialsteelmakingandfinishingpractices.
DentResistant-BHSeries
-Sheetofthisdesignationisproducedfrompartiallystabilizedsteelandoffersauniquecombinationofas-receivedformabilityandfinalpropertiesafterfabrication.
Sheetofthisdesignationcombinesstrengthandhighformability.
Althoughthissteelisnon-agingatroomtemperature,itgainsstrengthfromwork-hardeningduringfabricationandfromcarbon-agingduringpaint-baking.
(Sometimes
referredtoas"
bakehardenable."
)
ExtraDeepDrawingSteel-Sheetofthisdesignationhassuperiorformabilityandexcellentuniformity.
Itisproducedfromsteelhavingaverylowcarboncontentwithstabilizingelementsaddedtomakeitinterstitialfree.
Itisanon-agingsteelsheetwithhighresistancetothinningduringdrawingandissuitableforcriticalformingapplications.
DryFilmThickness(DFT)-Thethicknessofthedrypaintfilm.
DSTypeBSteel-Productintendedforapplicationsthatrequireparticularlyseveredrawingandforming.
Ductility-
Theabilitytopermitchangeofshapewithoutfracture.
Inflatrolledsteel,ductilityisusuallymeasuredbyhardnessormechanicalpropertiesinatensiletest.
E
Elongation-Thepercentincreaseofagivendistance(usually2inches)priortofractureduringtensiletesting.
Embossedsheet-Anembossedsheetisonehavingaprominent,impressedtextureorpatternonitssurface(s).Ifthedefinedtextureisappliedtoessentiallyonsurfaceonly,itismostproperlytermedacoinedsurface.Ifthetextureorpatterncarriesthroughtheentirebodyofthesheetandappearsonbothsurfacesitisatrueembossedsurface.
ExtraSmoothGalvanized-AnExtra-Smoothfinishisimpartedtohot-dipmetallic-coatedsteelsheetbytemperrollingaftercoatingtodecreasethesurfacereliefthatoccurswhenthemoltencoatingsolidifies.Thespanglepattern(grainpattern)ismadedistinctlylessvisiblebythemattefinishimpartedbytherollingoperation.MostExtra-Smoothsheetisintendedforeitherprepaintedorpostpaintedapplications.
F
Flatness-Flatnessisameasureofacutlengthsheet'
sabilitytoconformtoaflathorizontalsurface.Maximumdeviationfromthatsurfaceisthedegreetowhichthesheetisoutofflat.FlatnessisoftenexpressedquantitativelyineitherSteepnessorI-Units.
FinishCoat-Thetopcoatorexposedprimesidepaintfilm.
Flexibility-Thedegreetowhichapaintfilmcanwithstanddeformationwithoutsignificantchangeincolorandappearance.
G
Gloss-Thepropertyofasurfacerelatedtoitsabilitytoreflectlight.Themostcommontypeofglossofinteresttoappearanceattributesisspeculargloss.Theparameterswhichmustbespecifiedforthedeterminationofthispropertyaretheanglesofincidenceofthelightsource,theangleofviewingoftheglossandtheangulardispersionsofthemeasuringbeams.
H
Hardness-Resistanceofmetaltopenetrationofthesurface.
HighStrength-Productintendedforapplicationswheregreaterstrengthiscritical.
HighStrengthtypicallybeginsat35ksiminimumyieldstrength.
HighStrengthLowAlloy(HSLA)-Aspecificgroupofsteelsinwhichthestrengthlevelsareachievedbytheadditionofmoderateamountsofalloyingelements.
Themostcommonarecolumbium,vanadiumortitanium.
HotRolledSheet-Steelsheetthatisprocessedtoitsfinalthicknessbyrollingathightemperaturesonaspeciallydesignedhot-rollingfacility.
Alsocommonlyknownashotrolledunprocessed.
HotRolledSheetNon-TemperRolled-AU.S.SteeldefinitionforproductsuppliedasacoildirectlyofftheHotStripMillwithnoadditionalprocessing.
HotRolledSheetPickled-AU.S.Steeldefinitionforamilledgecoilthatispickled,oiledandtemperrolledwithcoilendscroppedbacktomeetgaugetolerances.
HotRolledSheetPickledNon-TemperRolled-AU.S.Steeldefinitionforamilledgecoilthatispickledandoiledwithcoilendscroppedbacktomeetgaugetolerances.
HotRolledSheetProducts-FlatsteelproductsthatarebroughttofinalthicknessbyrollingthroughaHotStripMillathightemperatures.
I
ImpactTest-Atestwhichisintendedtoevaluatethebrittleness,toughness,adhesionandhardnessofpaintfilmsappliedtometalsbysubjectingthemtoanindentimpactforce.
Inclusions-Particlesofforeignmaterial(suchasoxides,sulfidesorsilicates)insteelascast.
InclusionShapeControl-Theuseofrareearthmetalsorcalciumalloystocontrolthemorphologyofinclusions,inordertoprovideimprovedmechanicalpropertiesforselectapplications.
IntercoatAdhesion-Theadherencewhichisobservedbetweentheprimerandtopcoatofapaintsystem.
K
KilledSteel-
Steelthatisdeoxidizedbysiliconoraluminumtoreducetheoxygencontentinthemoltensteeltoaminimumpriortosolidificationofthemetal.Killedsteelshavemoreuniformpropertiesandchemicalcompositionthanothertypes.
L
Leveling-Flatteningofrolledsheetbyreducingoreliminatingdistortions.
Laminate-Acompositeconstructionofdissimilarmaterials,suchasametalandplasticfilm,usuallymadeupassheetproductandintendedtofunctionasthoughitwereasinglematerial.
Lü
sLines-Seecoilbreaks.
M
MatteFinish-Amoreuniformsurfacefinishimparted
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