Vuam al6xn rau 316L Cov ntsiab lus tseem ceeb:
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Khoom Khoom
AL6XN stainless hlau: Lub superaustenitic stainless hlau paub txog nws cov ntsiab lus nitrogen siab thiab ua haujlwm zoo heev rau pitting, crevice corrosion, thiab kev ntxhov siab corrosion tawg. Nws yog feem ntau siv nyob rau hauv ib puag ncig nrog cov tshuaj hnyav, dej hiav txwv, thiab kub siab.
316L stainless hlau: Austenitic stainless hlau nrog zoo corrosion kuj thiab txhua yam khoom, haum rau marine ib puag ncig thiab kev siv tshuaj lom neeg.
Thermal Expansion
Cov alloys muaj cov thermal expansion coefficients sib txawv, uas tuaj yeem ua rau muaj kev ntxhov siab thiab muaj peev xwm tawg yog tias tsis tswj xyuas kom zoo.
Corrosion Resistance
Kev sib xyaw ob qib sib txawv ntawm cov hlau tsis muaj steel qee zaum tuaj yeem cuam tshuam tag nrho cov kev tiv thaiv corrosion. Nws yog ib qho tseem ceeb los xyuas kom meej tias thaj tsam weld tuav cov khoom uas xav tau.
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Vuam txoj kev
Gas Tungsten Arc Welding (GTAW/TIG)
GTAW tau pom zoo heev vim nws qhov tseeb thiab kev tswj xyuas cov khoom siv hluav taws xob. Txoj kev no yog qhov zoo tshaj plaws los tiv thaiv cov cua sov ntau dhau, uas tuaj yeem ua rau muaj kev cuam tshuam thiab degradation ntawm cov khoom siv kho tshuab.
Shielded Hlau Arc Vuam (SMAW)
SMAW tuaj yeem siv tau, tshwj xeeb tshaj yog rau kev kho thaj chaw lossis thaum vuam cov ntu tuab. Txawm li cas los xij, nws yuav tsum muaj kev txawj ntau dua los tswj cov khoom siv hluav taws xob thiab xyuas kom muaj qhov tsis xws luag.
Gas Metal Arc Vuam (GMAW/MIG)
GMAW yog tsim rau vuam cov ntaub ntawv, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov uas yuav tsum tau ntau dua deposition tus nqi. Kev siv cov khoom siv hluav taws xob tuaj yeem pab tswj cov cua sov nkag thiab txo qhov kev pheej hmoo ntawm kev sib tsoo.
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Cov khoom siv vuam
Filler Hlau
Xaiv cov hlau muab tub lim tsim nyog yog qhov tseem ceeb rau kev ua tiav qhov muaj zog, corrosion-resistant weld. Pom zoo muab cov hlau muaj xws li:
ERNiCrMo-3 (Inconel 625): Muab kev tiv thaiv corrosion zoo heev thiab sib xws nrog AL6XN vuam thiab 316L.
ER316L: Tsim nyog rau kev thov tsawg dua, ua kom muaj kev sib raug zoo nrog 316L thaum muab kev tiv thaiv corrosion txaus.
Tiv thaiv Gas
Siv high-purity argon los yog sib tov ntawm argon nrog helium los xyuas kom meej lub pas dej huv huv thiab txo qis oxidation.
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Kev Tswj Kub Kub
Interpass Temperature Control: Khaws qhov kub ntawm qhov sib cuam tshuam (hauv qab 150 degree) kom tsis txhob muaj cua sov ntau dhau.
Tom qab Weld Thaum tshav kub kub kho (PWHT): Thaum tsis tas yuav tsum tau, PWHT tuaj yeem txo qhov kev ntxhov siab thiab txhim kho corrosion kuj hauv cov ntawv thov tseem ceeb.
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Vuam Parameters
Tam sim no thiab Voltage: Ua kom zoo dua cov kev ntsuas no raws li qhov tuab ntawm cov ntaub ntawv thiab cov txheej txheem vuam xaiv kom ua tiav qhov kev nkag mus zoo thiab txo qhov tsis xws luag.
Kev nrawm nrawm: Kho qhov kev mus ncig ceev kom paub tseeb tias cov khoom siv hluav taws xob zoo sib xws thiab tsis txhob overheating lossis underheating cheeb tsam weld.
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Kev txiav txim siab tom qab Weld
Kev tshuaj xyuas
Ua cov kev tshuaj xyuas zoo, suav nrog kev tshuaj xyuas qhov muag, kuaj hluav taws xob, thiab kev kuaj tshuaj zas xim, txhawm rau txheeb xyuas cov teeb meem xws li tawg, porosity, lossis tsis tiav fusion.
Passivation
Tom qab welding, xav txog passivating thaj chaw weld los kho cov txheej txheem corrosion-resistant ntawm stainless hlau nto, txhim kho nws cov kav ntev hauv qhov chaw corrosive.
