Hastelloy C276 Vuam Cov Txheej Txheem
VuamHastelloy C276, lub corrosion heev-resistant npib-domium-molybdenum alloy, yuav tsum muaj kev txiav txim siab tshwj xeeb kom tswj tau nws cov kev ua tau zoo heev hauv kev sib zog. Cov khoom siv tau paub txog nws txoj kev tiv thaiv rau ntau cov acids, cream kub, ua rau nws zoo tagnrho, ua rau cov kev siv tshuaj lom neeg, thiab tswj cov pa hluav taws xob. Hauv qab no yog ib qho kev pom zoo ntawm kev pom zooKev Vuam Cov Txheej TxheemRau Hastelloy C276 txhawm rau paub meej cov pob qij txha zoo thiab tswj hwm nws cov khoom.
1. Ua ntej-vuam txiav txim siab
Khoom npaj: Xyuas kom meej tias saum npoo yuav tsum welded yog huv, tsis muaj cov kab mob tsis huv xws li roj, roj, xeb, lossis lwm yam khoom siv txawv teb chaws. Qhov no tuaj yeem ua tiav los ntawm kev siv hlau txhuam, sib tsoo, lossis siv tshuaj ntxuav cov txheej txheem.
Haum: Tus qauv kom haum kom haum yog qhov tseem ceeb kom tsis txhob muaj cua sov ntau dhau los, uas tuaj yeem ua rau cov khoom siv cov khoom siv. Nco ntsoov cov npoo ntawm Weld sib koom ua ke yog du thiab zoo sib xws.
Rov qab tuav tuav: Siv tus tooj liab thaub qab yog tias tsim nyog, tshwj xeeb tshaj yog rau cov ntu nyias, los pab tswj cov cua sov thiab tiv thaiv kev cuam tshuam.
2. Khoom Siv Ntxawm
RauHastelloy C276 Vuam, siv cov chaw ua haujlwm rau cov khoom siv uas tau sib xws nrog cov khoom siv hauv paus. Feem ntau,Hastelloy C276 Muab Quav QwslossisVuam hlausiv. Cov fitters no yog tsim los kom phim rau alloy txoj kev sib xyaw thiab xyuas kom zoo corrosion tsis kam thiab cov khoom siv neeg kho tshuab.
Cov Khoom Siv Tub Ua Kob:
Ernicrmo -4: Qhov no yog cov muab cov khoom siv ua haujlwm tshaj plaws rau kev siv hlua tshuaj Hastelloy C276, uas yog qhov tseem ceeb tib yam hauv lub vuam hlau daim ntawv.
3. Vuam txheej txheem
Tig (roj tungsten arc vuam - gtaw): Tig Vuam yog qhov kev nyiam vuam heelselloy C276, raws li nws muaj cov khoom siv ua kom zoo thiab muaj txiaj ntsig zoo nrog tsawg. Nws yog qhov zoo tagnrho rau cov ntu nyias-worted thiab ua kom pom kev zoo tswj cov lus tawm sov.
Teeb Chaw: Tswj cov chaw amperage tsawg los tiv thaiv kev kub heev, tshwj xeeb tshaj yog thaum ua haujlwm nrog cov ntu thinner.
Tiv Thaiv Roj: Siv cov roj hauv qab xws litus sib cavlossis sib xyaw ntawmargon thiab heliumrau kev thaiv kev tiv thaiv weld. Argon muab kev tiv thaiv zoo dua los ntawm oxidation.
Kev Tswj Cua Sov: Siv kev tawm tshiab med los tiv thaiv carbide nag lossis tswj lub alloy tiv thaiv kev xeb. Nco ntsoov ua kom txias sai tom qab vuam los khaws cov khoom siv cov khoom siv.
MIG (HLAU INVER GAST - GMAW): Mig vuam tseem yog ib qho kev xaiv rau cov tuab tuab ntawm Hastelloy C276, txawm tias nws yuav tsis yog raws li Tig Vuam. Nws yog qhov tsim nyog rau ntau dua cov khoom sib xyaw lossis qhov chaw nrawm.
4. Preheat thiab cuam tshuam qhov kub
Preheat: Feem ntau,Preheatingyog tsis tsim nyog rauHastelloy C276Vim nws cov thermal qis conductivity. Txawm li cas los xij, yog tias yuav tsum tau ua ntej yog qhov yuav tsum tau ua rau cov khoom tuab tuab, txwv lub preheat kub rau qhov siab tshaj plaws{{0 {}} degree f ({38-65 degree).
Sib txuam Kub: Tswj kev kub ntxhov ntawmtsawg dua 300 degree f (150 degree)Txhawm rau zam dhau kev tsim cov theem detrimental thiab khaws cia cov khoom siv cov khoom siv corrosion.
5. Tom qab welding sov kho
Tom qab weld kev kho cua sov (pwht): Rau hastelloy c276, post-weld kev kho cua sov yog feem ntautsis tas yuavrau cov ntawv thov feem ntau. Txawm li cas los xij, yog tias cov khoom siv tau nthuav tawm ntau kub siab lossis kev ntxhov siab hnyav, kev daws teeb meem kev daws teeb meem ntawm2050 Qib F rau 2150 Qib F (1121 Qib rau 1177 Qib), ua raws li los ntawm kev ua kom sai, yuav tsim nyog.
Cua txias: Hastelloy C276 yuav tsum txias rau hauv huab cua lossis dej, nyob ntawm qhov tuab thiab siv vuam. Cov cua txias txias yuav pab rau hauv khaws cov khoom siv tau xeb.
6. Soj ntsuam thiab kuaj
Tom qab vuam, nws yog ib qho tseem ceeb kom tshuaj xyuas cov ntawv pov tseg rau cov tsis xws luag zoo li cov kab nrib pleb, porosity, lossis undercuts uas yuav cuam tshuam kev ua tau zoo ntawm welded sib koom tes.
Tsis Yog-kev sim ua txhaum (NDT)Cov hau kev, xws liKev Kuaj Ultrasonic (ut)lossisX-ray soj ntsuam, yog ib txwm siv los xyuas qhov tseeb ntawm Weld.
7. Cov teeb meem tshwm sim kom tsis txhob
Cov kev tawm hws ntau dhau: Ntau cov cua sov tuaj yeem ua rau muaj kev loj hlob qoob loo thiab txo cov corrosion tsis kam ntawm Weld, yog li nws yog ib qho tseem ceeb kom tswj cov vuam vuam qhov tsis haum.
Tsis huv: Cov khoom paug los ntawm cov khoom siv tshuab hluav taws xob lossis tiv toj nrog cov ntaub ntawv tsis sib xws tuaj yeem cuam tshuam rau Weld qhov kev ua tau zoo, yog li cov chaw huv yog qhov tseem ceeb.
Tawg pleb: Preheating, tswj cua txias, thiab siv cov khoom siv uas yog tuaj yeem pab zam kom tsis txhob tawg hauv weld cheeb tsam.
8. Vuam kev saib xyuas kev nyab xeeb
Raws li nrog txhua qhov chaw tsim duab, nws yog qhov tseem ceeb rau kev hnav cov khoom tiv thaiv tus kheej (PPE), suav nrog cov kaus mom hlau, thiab cov khaub ncaws tiv thaiv. Xyuas kom muaj qhov cua txaus, raws li vuam fumes tuaj yeem tsim kev puas tsuaj.
Tag
VuamHastelloy C276Yuav tsum tau ua tib zoo tswj ntawm kev tswj hwm vuam kom tswj nws cov khoom lag luam zoo tshaj thiab cov khoom siv neeg kho tshuab. Siv cov tub muab cov khoom siv rau sab xis, tiv thaiv cov roj, thiab cov txheej txheem vuam, xws liTig Vuam, yuav xyuas kom muaj kev zoo, txhim khu kev qha welds. Seb puasKev Lag Luam, tus sawv cev ua tub rog, lossisLub Zog LojCov ntawv thov, ua raws cov txheej txheem no yuav ua kom ntseeg tau tias Hastelloy C276 ua tau zoo nyob hauv ib puag ncig hnyav.
Yog muaj lus nug txog kev siv vuam los yog cov khoom siv sib txawv, tso tawm dawb mus txog SSM, koj cov neeg muag khoom ntseeg tauHastelloy C276Cov khoom!
