Nkag siab Inconel 718's Weldability:
2.4668 Inconel 718 yog nickel-chromium alloy ua nag lossis daus hardenable, lub zog siab, corrosion-resistant nickel-based superalloy. SAE AMS 5962 Inconel 718 yog dav siv hauv aerospace, roj turbine, thiab lwm yam kev siv kub. Thaum nickelcev 718muaj ntau yam khoom tsim nyog, nws tuaj yeem nyuaj rau vuam vim nws muaj pes tsawg leeg thiab microstructure. Txawm li cas los xij, nrog cov txheej txheem vuam txoj cai, cov welds zoo tuaj yeem ua tiav.
1. Tungsten Inert Gas (TIG) Vuam:
TIG welding yog ib txoj kev nyiam rau Inconel 718 cov khoom vim nws qhov tseeb thiab muaj peev xwm los tsim cov vuam zoo. Siv lub siab-purity argon shielding roj thiab tswj kom zoo arc ntev rau kev pom zoo.
2. Gas Tungsten Arc Vuam (GTAW):
GTAW, feem ntau hu ua TIG vuam, GTAW siv lub tungsten electrode los tsim ib qho hluav taws xob arc uas melts cov khoom siv hauv paus thiab muab tub lim. Xyuas kom huv si thiab tsis muaj paug ib puag ncig, thiab kho koj qhov vuam tsis ua kom haum raws li cov kev cai tshwj xeeb ntawm 2.4668 alloy 718.
3. Pulsed Gas Metal Arc Vuam (GMAW-P):
GMAW tseem hu ua MIG (hlau inert gas) welding, Pulsed GMAW yog haum rau ob qho tib si nyias thiab tuab seem ntawm Inconel 718. Qhov kev txiav txim siab pulsing pab tswj cov khoom cua sov, txo qhov kev pheej hmoo ntawm overheating thiab ua kom lub suab weld.
4. Laser beam vuam (LBW)
LBW yog cov txheej txheem vuam siv hluav taws xob uas siv lub teeb tsom laser kom yaj cov Inconel alloy 718 cov khoom siv hauv paus thiab muab tub lim hlau. LBW tuaj yeem tsim cov welds zoo heev thiab zoo, tab sis nws yuav tsum muaj cov cuab yeej tshwj xeeb thiab cov neeg ua haujlwm tau kawm. LBW kuj tuaj yeem cuam tshuam los ntawm cov khoom thickness thiab nto tiav.
5. Kev kho cua sov tom qab Weld (PWHT):
Xav txog kev siv PWHT txhawm rau txo cov kev ntxhov siab uas seem thiab txhim kho cov khoom siv kho tshuab ntawm UNS N07718 cov khoom siv welded sib koom ua ke. Ua raws li cov txheej txheem kho cua sov pom zoo kom ua tiav qhov xav tau sib npaug ntawm lub zog thiab tawv.
6. Weld Joint Npaj:
Kev npaj sib koom ua ke yog qhov tseem ceeb rau kev ua tiav vuam. Siv cov kaum sab xis uas tsim nyog, xyuas kom muaj qhov sib koom ua ke huv si, thiab siv cov txheej txheem zoo li rov qab-gouging rau qhov zoo tshaj plaws weld nkag.
7. Filler Hlau Xaiv:
Xaiv cov hlau muab tub lim tshwj xeeb uas tsim los rau vuam Inconel 718. Cov kev xaiv feem ntau suav nrog alloy 625 thiab alloy 718 muab tub lim, xaiv raws li daim ntawv thov thiab cov khoom siv xav tau.
8. Welding nyob rau hauv ib puag ncig tswj:
Khaws ib puag ncig tswj kev vuam kom txo qhov kev pheej hmoo ntawm kev sib kis. Tiv thaiv thaj chaw ua haujlwm los ntawm cov ntawv sau tseg, siv cov ntaub thaiv npog, thiab xav txog kev siv cov txheej txheem tiv thaiv hauv zos rau kev txhawb nqa roj.
Los ntawm kev koom nrog cov kev coj ua zoo tshaj plaws no thiab siv cov thev naus laus zis vuam tshiab, koj tuaj yeem ua tiav cov txiaj ntsig zoo thaum vuam Inconel 718 ASTM. Ntawm HT PIPE, peb tsis tsuas yog cog lus los muab cov kev daws teeb meem zoo tshaj plaws, tab sis kuj los sib koom cov kev txawj ntse uas txhawb nqa koj cov txheej txheem tsim khoom. Yog xav paub ntxiv, kev daws teeb meem alloy, lossis kev taw qhia ntawm vuam Inconel alloy 718, hu rau peb pab neeg mob siab rau.
