铸钢轧机机架交货和检验规程

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1、February1999DeliveryandtestinginstructionsSN320forcast-steelmillhousingsPart10DimensionsinmmFieldofapplicationThesedeliveryandtestinginstructionsapplytoallcast-steelmillhousings.Forthematerialorderedthevalidstandardsandallotherapplicablestandardsaretobeobse

2、rved(seepage4).1Deliveryinstruction1.1GeneraltolerancesThedegreeofaccuracyfortheas-castdimensionsisfixedasspecifiedinGTB20,DIN1683.InallcasesthelatestGerman-languageversionofthisstandardshallbetakenasauthoritative1.2TestspecimensThesizeofthespecimentobeinte

3、grallycastis80x80x250mm.AsufficientnumberoftestspecimensistobeintegrallyNoguaranteecanbegiveninrespectofthistranslationcastsothatthetestsbelow,anyrepeattests,ifnecessary,andthemanufactureofareferenceblock(item3.4)canbecarriedout.2Testinginstructions2.1Mater

4、ialtestMaterialistobetakenfromthemiddleoftheintegrallycastspecimenfor:-tensiletestingasperDINEN10002Part1.-CharpyimpacttestKVDINEN10045Part1.Heatanalysisincl.totalaluminiumcontent.2.2Non-destructivetesting2.2.1AreasofultrasonicandcracktestingFig.1Areasofult

5、rasonicandcracktestingFig.2ZonesandlocationsofscanningpathsforultrasonictestingDetailYExtendultrasonicandcracktestingtoanyadditionalScanningpaths1to4Incaseofchangesthisprintoutisnottakenintoaccount!steppedholeintheultrasonictestingtopcross-head.soundentrydi

6、rectionforfforspecialsurfacezonehousingpostwidth(Hb)extentofinspection=100%detailYcracktestinginallhousingwindowradiispecial1/2Hbsurfacezone1/3surf.1/3core1/3surf.zonezonezonehousingpostwidth(Hb)Continuedonpages2to4Bearbeitet:Normung3.06.10Page2SN320Part10:

7、1999-023Ultrasonictesting3.1ExtentoftestingTheextentoftestingisshowninthefigures1and2.Ifdiscontinuitiesthatrequireregisteringarefound,theirextensionsarealsotobeestablishedoutsidethescanningpaths1to4.3.2TestingmethodTestingiscarriedoutasspecifiedinSEP1922.3.

8、3PointoftimeoftestingThebindingtestfortheacceptanceofthehousingstakesplaceafterpremachining.Ifnecessary,preliminarytestsintheas-castconditionaretobemadebythecastingsupplier.Beforethedispatchoftherollho