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1、WHATISTHECORRUGATED?Corrugatedfiberboardor"combinedboard"hastwomaincomponents:theliner(面纸）andthemedium(芯纸).Botharemadeofaspecialkindofheavypapercalledcontainerboard(箱板纸).Linerboard(瓦楞纸箱外层的高强箱板纸) istheflatfacingthatadherestothemedium.Themediumisthewavy,flutedpaper(楞纸) inbetweentheliners.COMMO
2、NBOARDSTYLES常用纸板的种类SingleFace:Onemediumisgluedtooneflatsheetoflinerboard.单面纸板：一层芯纸粘接在一层平面箱板纸上。SingleWall:Themediumisbetweentwosheetsoflinerboard.AlsoknownasDoubleFace.单瓦楞纸板：芯纸粘在二层箱板纸之间，也被称为双层纸板。DoubleWall:Threesheetsoflinerboardwithtwomediumsinbetween.双瓦楞纸板：二层芯纸夹在三层面纸之间。（在中国又被称为五层瓦楞纸板）Triple
3、Wall:Foursheetsoflinerboardwiththreemediumsinbetween.三瓦楞纸板：三层芯纸夹在四层面纸之间。（在中国又被称为7层瓦楞纸板）Flutes楞形Architectshaveknownforthousandsofyearsthatanarch（拱） withthepropercurve（曲线） isthestrongestwaytospanagivenspace（跨越一个给定的空间）.Theinventorsofcorrugatedfiberboardappliedthissameprincipletopaperwhentheyput
4、archesinthecorrugatedmedium（瓦楞芯纸）.Thesearchesareknownasflutes（楞）andwhenanchoredtothelinerboardwithadhesive,theyresistbendingandpressurefromalldirections.Whenapieceofcombinedboardisplacedonitsend,thearchesformrigidcolumns,capableofsupportingagreatdealofweight.Whenpressureisappliedtothesideoft
5、heboard,thespaceinbetweentheflutesactsasacushion（垫子）toprotectthecontainer'scontents.Theflutesalsoserveasaninsulator(绝缘体,绝热器,保温层）,providingsomeproductprotectionfromsuddentemperaturechanges.Atthesametime,theverticallinerboardprovidesevenmorestrengthandprotectstheflutesfromdamage.Flutescomeinse
6、veralstandardshapesorfluteprofiles(A,B,C,E,F,etc.).A-flute（A楞）wasthefirsttobedeveloped.B-flutewasthenextandismuchsmallerthanA-flute.C-flutefollowedandisbetweenAandBinsize.Itisalsothemostcommonlargefluteprofile.E-fluteissmallerthanBandF-fluteissmalleryet.Duetovariancesinflutesizesbetweenmanuf
7、acturers,FBAnolongerpublishesfluteguidelines.Inadditiontothesefivemostcommonprofiles,newfluteprofiles—bothlargerandsmallerthanthoselistedhere—arebeingcreatedformorespecializedboards.Generally,largerfluteprofilesdelivergreaterverticalcompressionstre
