Hastelloy C276 vuam txheej txheem thiab ceev faj

Hastelloy C-276 alloy yog tungsten-muaj nickel-chromium-molybdenum alloy. Nws yog npib tsib xee-raws li alloy nrog zoo heev corrosion kuj thiab kub kub kuj. Vim tias nws muaj cov ntsiab lus tsis tshua muaj silicon-carbon, nws raug suav tias yog tus neeg sawv cev tiv thaiv kev tiv thaiv thoob ntiaj teb. hlau alloy. Feem ntau resistant rau cov chlorine ntub dej, ntau yam oxidizing chlorides, chloride ntsev daws, sulfuric acid thiab oxidizing ntsev, thiab muaj corrosion kuj zoo nyob rau hauv qis thiab nruab nrab kub hydrochloric acid. Hastelloy C-276 yog ib qho ntawm cov khoom siv tiv thaiv corrosion los ntawm cov tshuaj chlorine moist, hypochlorite thiab chlorine dioxide daws. Nws muaj kev tiv thaiv zoo rau cov tshuaj chloride siab xws li ferric chloride thiab tooj liab chloride. corrosion resistance.Hastelloy C-276 tuaj yeem siv rau hauv cov ntawv thov hauv qab no:

1. Cov pa phem tswj pawg kab, ducts, dampers, scrubbers, stack gas reheaters, kiv cua thiab kiv cua shrouds
2. Flue gas desulfurization system
3. Chemical processing Chemical Chemical Chemical Chemical Chemical Chemical Chemical Chemical Processing Chemical Chemical Chemical Chemical Chemical Chemical Chemis
4. Sulfur gas qhov dej
5. Pulp thiab ntawv ntau lawm
6. Kev pov tseg pov tseg
7. Cov khoom siv tshuaj thiab khoom noj khoom haus

Txhawm rau kom ntseeg tau qhov zoo thiab kev ntseeg siab ntawm Hastelloy C276 vuam txheej txheem, peb yuav ua kom paub meej txog kev xaiv cov khoom siv vuam, vuam zawj tsim, vuam ntu thiab cov txheej txheem, kev txiav txim siab vuam tsis, preheating thiab tom qab kev kho cua sov, tom qab vuam. Kev tshuaj xyuas, vuam deformation tswj thiab Post-weld tiv thaiv thiab lwm yam.

Hastelloy C-276 phaj mem tes laser hlau filling vuam txheej txheem

1. Kev xaiv cov khoom siv vuam
Cov khoom siv vuam tsim nyog rau Hastelloy C276 feem ntau suav nrog nickel-raws li vuam hlau thiab argon arc vuam hlau. Ntawm lawv, cov nickel-based vuam hlau tuaj yeem siv Hastelloy C276 vuam hlau, thiab argon arc vuam hlau tuaj yeem siv WSiNiCrMo-3 vuam hlau. Nws yuav tsum raug sau tseg tias kev xaiv cov khoom siv vuam yuav tsum xav txog yam xws li tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab thiab vuam kev ua tau zoo ntawm lub hauv paus hlau, thaum ua kom ntseeg tau qhov zoo thiab kev ntseeg siab ntawm cov khoom siv vuam.

Cov khoom siv vuam                                    

2. Vuam zawj tsim
Cov yam ntxwv vuam ntawm Hastelloy C276 xav kom cov qauv tsim yuav tsum txo qhov fusion piv thiab txo qhov chaw ntawm thaj tsam ntawm tshav kub, yog li txhim kho corrosion kuj thiab txhua yam khoom ntawm welded sib koom. Yog li ntawd, daim ntawv thiab qhov loj ntawm qhov vuam zawj yuav tsum tau tsim los ntawm cov khoom xws li lub thickness ntawm lub hauv paus hlau, vuam txoj hauj lwm thiab txoj kev vuam. Nyob rau tib lub sijhawm, txhawm rau ua kom cov vuam zoo, qhov zawj ntawm qhov chaw yuav tsum tau ntxuav kom tshem tawm cov impurities xws li roj stains thiab oxide films.
3. Vuam ib ntus thiab cov txheej txheem
Lub vuam sib txuas ntawm Hastelloy C276 yuav tsum tau nthuav dav los ntawm qhov chaw mus rau qhov chaw ib puag ncig kom tsis txhob deformation thiab tawg thaum lub sij hawm vuam txheej txheem. Cov txheej txheem vuam tuaj yeem suav nrog phau ntawv arc vuam, argon arc vuam, thiab lwm yam. Kev tuav arc vuam tuaj yeem ua tiav qhov kev nkag tau zoo dua thiab fusion cuam tshuam, thaum argon arc vuam tuaj yeem txo qhov chaw ntawm cov cua sov cuam tshuam thiab txhim kho vuam zoo. Nws yuav tsum raug sau tseg tias cov txheej txheem vuam sib txawv muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab kev xaiv yuav tsum yog raws li qhov tseeb.
4. Kev txiav txim siab ntawm vuam tsis
Kev txiav txim siab ntawm cov vuam tsis yog ib qho tseem ceeb txuas kom ntseeg tau tias vuam zoo, nrog rau tam sim no, voltage, vuam ceev, thiab lwm yam. Rau phau ntawv arc vuam, kev xaiv ntawm tam sim no thiab voltage yuav tsum coj mus rau hauv tus account yam xws li thickness ntawm lub hauv paus hlau. , vuam txoj hauj lwm thiab electrode hom. Lub vuam ceev yuav tsum tau khaws cia nruab nrab kom tsis txhob nrawm dhau los yog qeeb dhau los cuam tshuam qhov vuam zoo. Rau argon arc vuam, kev xaiv ntawm tam sim no thiab voltage yuav tsum coj mus rau hauv tus account yam xws li hom vuam hlau, thickness ntawm lub hauv paus hlau, thiab daim ntawv ntawm kev sib koom tes. Lub vuam ceev yuav tsum tau ua kom zoo ib yam kom tsis txhob muaj qhov tsis xws luag xws li pores thiab tawg.
5. Preheating thiab tom qab cua sov kho
Preheating thiab tom qab kev kho cua sov yog ib qho ntawm cov kev ntsuas tseem ceeb los xyuas kom meej qhov vuam zoo ntawm Hastelloy C276. Preheating tuaj yeem txo qhov kub ntawm qhov sib txawv ntawm lub hauv paus hlau thiab cov khoom siv vuam, txo qhov nyiam ntawm cov kab nrib pleb, thiab tib lub sij hawm txhim kho corrosion kuj ntawm welded sib koom. Kev kho cua sov tom qab tuaj yeem tshem tawm cov kev ntxhov siab uas nyob hauv vuam thiab txhim kho cov khoom siv kho tshuab thiab corrosion tsis kam ntawm qhov sib koom ua ke. Nws yuav tsum tau muab sau tseg tias qhov kub thiab txias thiab lub sij hawm ntawm preheating thiab tom qab kev kho cua sov yuav tsum tau nruj me ntsis tswj kom tsis txhob muaj lub cim ntawm tshiab tsis xws luag.
6. Kev tshuaj xyuas tom qab vuam
Kev tshuaj xyuas tom qab vuam yog qhov tsim nyog los xyuas kom meej qhov vuam zoo ntawm Hastelloy C276. Cov kev tshuaj ntsuam xyuas muaj xws li kev soj ntsuam zoo li qub, kuaj tsis muaj kev puas tsuaj, thiab lwm yam. Kev tshuaj xyuas qhov tshwm sim tuaj yeem pom qhov tsis xws luag xws li undercuts, tsis muaj fusion, thiab lwm yam., thaum kuaj tsis muaj kev puas tsuaj tuaj yeem pom qee qhov nyuaj-nrhiav qhov tsis xws luag xws li tawg, qhov pores. , thiab lwm yam. Lub sijhawm tshuaj xyuas feem ntau yog xaiv tam sim ntawd tom qab vuam tiav kom pom cov teeb meem hauv lub sijhawm thiab kev ntsuas kev kho yuav raug coj los siv.
7.Welding deformation tswj
Qhov laj thawj tseem ceeb ntawm vuam deformation muaj xws li cov khoom siv hluav taws xob ntau dhau, tsim tsis tsim nyog groove, kev sib txuas tsis zoo thiab lwm yam. Txhawm rau tswj cov vuam deformation, cov kev ntsuas hauv qab no tuaj yeem ua tau: tsim cov qauv thiab qhov loj me; siv symmetrical vuam tshuab los nthuav tawm ntawm qhov chaw mus rau ib puag ncig; teeb tsa cov kev txhawb nqa lossis cov khoom siv hauv thaj chaw uas muaj kev deformation. Yog hais tias deformation tau tshwm sim, kho tshuab kho lossis kho cov nplaim taws tuaj yeem siv los kho nws.
8. Post vuam tiv thaiv
Kev tiv thaiv tom qab vuam yog lwm qhov txuas tseem ceeb los xyuas kom meej qhov vuam zoo ntawm Hastelloy C276. Nws tuaj yeem tiv thaiv los ntawm txheej txheej tiv thaiv, ntxuav thiab lwm txoj hauv kev. Txheej kev tiv thaiv tuaj yeem tsim cov yeeb yaj kiab tuab rau saum npoo kom tiv thaiv pob qij txha los ntawm kev xeb. Kev ntxuav tuaj yeem tshem tawm cov khoom seem tsim tawm thaum lub sijhawm vuam, xws li oxide zaj duab xis, cov roj stains, thiab lwm yam., kom ntseeg tau tias qhov sib koom ua ke zoo. Nws yuav tsum raug sau tseg tias kev tiv thaiv kev tiv thaiv yuav tsum coj mus rau hauv tus account tiag tiag cov kev ua haujlwm thiab cov kev cai siv los xyuas kom meej tias cov kev tiv thaiv ua tau raws li qhov yuav tsum tau ua.

Kev ceev faj rau cov cuab yeej vuam
Cov cuab yeej ua haujlwm yuav tsum yog cov cuab yeej tu tshwj xeeb rau cov nickel alloys. Cov cuab yeej no yuav tsum tau muab cais tawm thiab cim kom meej kom tsis txhob muaj kev sib cav nrog lwm cov cuab yeej.
Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj cov khoom ua haujlwm los ntawm kev sib cuag nrog cov hlau uas muaj cov ntsiab lus melting tsawg kom tsis txhob muaj cov hlau tsis ruaj khov vim yog cov pa roj carbon ntau los yog sulfur. Kev siv tus pas ntsuas kub chalk, number case, thiab roj yuav tsum tau txwv thaum lub sijhawm tsim khoom.
Kev sib tsoo lub log siv rau kev sib tsoo lub workpiece yuav tsum tsis muaj hlau, thiab cov nplaum yuav tsum tsis yog cov organic resin.
Cov cuab yeej muab tso rau ntawm lub siab weldments ua ntej vuam yuav tsum tau nqa tawm siv tib txoj kev raws li tsim nyog welding. Thaum kawg, qhov chaw vuam yuav tsum tau yaj mus rau hauv qhov chaw ruaj khov. Vuam qhov chaw tsis raug tso cai kom raug yuam kom sib dhos ua rau lub zos hardening ntawm vuam qhov chaw.