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INSTRUCTIONSORHANDLING FLC.NICKEL NSITE

INSTRUCTIONSORHANDL!NG F LC-NICKEL N SITEGenera lLowCarbonNickel LC-nickel)s extremelyelicateo sulfur t tack.When n contact ttemperaturesbove300C, t iny races f sulf r containing aterials ctually resuff icientodestroyhenickelbeyond nypossibi l i tyf repair heated ulfurpenetratesetweenhegrainboundaries nd convertsntonickel-sulf ide.n he zonesof nickel-sulf ideormationhenickeloses ts resistance ndbecomes nusable).Unfortunately,here s almost o substancen whichsulfur s notpresentn any ormwhatsoever. ostdangerousn contactwithnickel re oi l ,grease, irt ,paint, arnish,marker-ink,dhesiveapes,glue, aror oi lpaper, tc., ingerprintsperspirat ion),hoeprints(dirtof anykind),etc.One morehazard f sulfur ontacto thenickel s the polluted irofcit ies nd ndustrial reas,whichusually eaches considerableevelof sulfur ontent.Scrupulousleanness f al lnickel arts, ools, lothing ndhandsof theworkers hereforesa precautionommandwhichdoesnot olerate nycompromise t al l .Liabil i tyTheslightest arelessnessr omissionn nickel andlingmayhavecatastrophicconsequences.hat s why al loperat ionsf construct ion,elding nd erect ion f nickelpartsare to be carriedout undercloseand permanent upervision y a Bertrams pecialist.Thissupervisions a basiccondit ionoracceptancef possible arranty laims n he uture.Bertrams il l efuseany iabil i tyor temswhichhavebeenworkedon withouthe abovesupervision r where he directives avenot beenstrictly ollowed espectively.All dataof cleaningand weldingprocedures re o be entered nto he respective ontrolcert i f icate.l lweldingsmustbe stampedwithan identif icat ionumber,which s to beentered nto he respective rawing nd thequality ontrol ertificate. he latterwillbeissued y the Bertrams elegateo record henamesof the welder nd he supervisorncharge, s wellas to cert i fy hecorrect xecution f cleaning ndwelding dgepreparat ion.sinceanywelding ct ivitybe t the actualweld tself r any epair f the heat nf luencedzones, separate ert i f icates o be ssuedoreach epair f weldings s well.StorageTo exclude nypossible azard f nickel estruct ionnd o avoidunnecessaryxpensesorcleaning,he nickeland nickel quipmenthould e stored n a dry,cleanand safeplace.Preferablynder oofand n a closed uilding. el iable ndcareful lynstructed eople nlyshould e in charge or ransport ndhandting f nickel. he metall ic right urfaces to beprotected gainst ontaminationf anykind. t is posit ivelyrohibitedo writeon thenickelwithany meanswhatsoever.Cleaningof LC NickelAllnickel artsmustbe cleaned areful ly nd horoughly efore and f necessary uring)construct ionndwelding rocedures, nemore imeof cleaningmust akeplaceafterinstal lat ionn the ieldand mmediatelyrior o nsulat ion.he astcleaning ofal lsurfacesnotcovered y insulat ion)s to be carried ut ustbefore tart-up f the plant.

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INSTRUCTIONSORHANDLING FLC-NICKEL N SITE

Since ulfur t tack s related o temperaturewhich istr ibutestselfmoreor essuniformlywithin he metal), t s obvious, hatal lcleaning nd emoval f oxidesmustcoverALLSIDES, nside ndoutside,op andbottom.Cleaningand DegreasingFo.r leaning y washing se ACETONE ALCOHOL, hich s to be applied everalimes,usinga newclean ageach ime beaware, hatAcetone Alcohol cis'asa solvent nly oremove hedirt etc. A rag soakedwithdirt cannotdo its ob anymore. t ratherdistributei hecontaminationo formerly leanspots, han o actuallyemove hem).The safety egulationsocally n forceare o be observed trictlywhenworkingwithAcetonei Alcohol.Thecleaning rocedures re o be carried utunderpermanent upervisiony a Bertramsspecialist nd confirmedby entering he respective ata nto he quality ontrol ertificate.Removalof greenish brown oxide i lmsIn case hemethoddescribedn 4.1above hould otproduce metall ic right urface,hetop ayerof the metalmustbe removedmechanicallyy grinding. segrinding lothof grainsize220.Forsafecleaning emoveapprox.0.1 mm,but t leasias muhas t reachanuninterrupted rightsurface.The grinding roceduremustbe followed y washingwithAcetone Alcoholas described n 4.1 above.The grinding nd washingare to be carriedou t underpermanent upervision y a Bertramsspecialist ndconfirmed y entering he respective ata nto he quality ontrol ertificate.Preparat ion f LC-Nickel or weldingSince he mmediate eighborhoodf thewelding il lbe heated eyond hecrit icaltemperaturef sulfurattack, hisheat nf luencedonemustbe cleaned efore andkeptcleanduring) l l welding.To exclude llpossible azards f destruct ion,othsidesof thewelding dgemustbeground.mekll ic rightat a widthof at least50 mm.Thiswhether r notlhere s actually noxide ilm.Grinding ndwashing s describedn4.2above.ThewashingwithAcetone Alcoholmustbe extended eyond hegroundarea o coverawidthof at least500 mm on bothsides.Thepreparat ionleanings to be carried ut under ermanent upervisionf a Bertramsspecial ist ndcontirmed y enteringherespectiveata nto hequality ontrol ert i f icate.Protect ionof cleanedLC-NickelAfteral l cleaningactivities nd during nterruptionsf workall nickelsurfaces re o becoveredPolyethyleneheets o preventnew contaminationtakecare, hat he cleansideofthesheetonlycomes ntocontactwith henickel.Do not rol lusedsheets. old hem n sucha way, ha t he cleansurfacecomes nwards).

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Erstausoabe:l tt lssuel Erstellt urch11.4.00/K.Berenbr ink Gepnift urch Anderung:Revision: Erstellturch4.4.03 F.Holei ter GeprftdurchMmdHffis[il" Dok.Nr./Doc. o. -Re v=FileName Blatt: rrSheet: I ";i' 2-746 207 1@Eptingerstrasse1 cH-4132Muttenz witzerland el+4161 46753 53 Fax+41 61 46753 00 www.bertramsch-

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