VuamASTM A350 LF2(Cov khoom siv kub tsawg: cov khoom siv yuav tsum muaj kev txiav txim siab kom ntseeg tau tias muaj zog, txhim khu kev qha, thiab siv tau rau nws cov ntawv thov tsawg. Nov yog qee cov lus qhia tseem ceeb rau Vuam Attm A350 LF2:
Vuam cov lus qhia rau Astm A350 LF2
Pre-welding npaj:
Khoom ntxuav: Xyuas kom meej tias cov khoom siv tau huv thiab dawb ntawm cov roj, roj, xeb, lossis av uas tuaj yeem cuam tshuam rau weld zoo.
Preheat: HosA350 LF2Yog cov hlau roj carbon txo qis, nws tseem pom zoo rau preheat cov khoom, tshwj xeeb tshaj yog rau cov tuab tuab. Preheating txo qhov kev pheej hmoo ntawm kev tawg vim cua sov kev ntxhov siab.
Pom zooPreheat kub: 250 Qib F rau 300 Degree F (120 Qib Rau 150 Qib).
Tom qab weld kev kho cua sov (pwht): Nws yuav tsis tsim nyog tsim nyog rau cov ntu nyias, tab sis rau cov tuab tuab lossis cov khoom siv hnyav, aTom qab-Weld Kev Kho Cua Sov(PWtht) yuav tsum tau ua kom txo cov kev ntxhov siab thiab txhim kho kev muaj zog ntawm Weld.
Zoo li ib txwmThoobkub:1100 degree F rau 1200 degree f (590 degree mus rau 650 degree).
Vuam txheej txheem:
Qhov feem ntau siv vuam cov txheej txheem rau astm A350 LF2 yog:
Cov thaiv hlau arc vuam (smaw)(Pas vuam)
Gas Hlau Arc Vuam (Gmaw)(MIG)
Tungsten inert roj vuam (Tig)(Roj tungsten arc vuam lossis gtaw)
Flux-cored arc vuam (FCaw)
Qhov kev xaiv ntawm cov txheej txheem vuam nyob ntawm ib yam xws li kev teeb tsa sib koom ua ke, cov ntaub ntawv tuab, thiab ib puag ncig uas tus Weld yuav ua tau.
Khoom Siv Ntxawm:
Cov khoom ua tub lim yuav tsum phim cov khoom siv hauv paus los xyuas kom ntseeg tau tias zoo fusion thiab cov khoom siv mechanies. Cov khoom siv ua ke siv rauA350 LF2Vuam xws li:
E7018(Cov roj hluav taws xob tsis muaj zog rau smaw).
Er70s -6(rau Mig thiab TIG txheej txheem).
Tus muab tub lim hlau yuav tsum tau tshaj tawm cov khoom siv tshuab thiab yuav tsum muaj peev xwm muab cov tawv ntawm qhov kub tsawg.
Sib txuam Kub:
Khaws tusSib txuam Kubhauv qab400 degree f (200 degree)Txhawm rau zam kev txhawb nqa ntau dhau thiab tswj cov khoom siv tawv.
WELD Saif:
Tom qab vuam, cov pob qij txha yuav tsum raug tshuaj xyuas kom haum, xws liKev Saib Xyuas Kev Pom, Kev Kuaj Ultrasonic (ut), lossisRadioGraphic Xeem (RT), kom ntseeg tau tias tsis muaj cov kab nrib pleb lossis tsis xws luag uas tuaj yeem ua rau muaj kev ncaj ncees ntawm Welded sib koom tes.
Tshwj xeeb mloog yuav tsum tau muab rauNrib pleb rhiabnyob rau hauv tsawg-kub ib puag ncig.
Vuam ntawm tsawg kub:
Thaum vuamA350 LF2hauvTsawg-qhov chaw kub, cov ntaub ntawv yuav tsum tau muab khaws cia sov sov, thiab kev saib xyuas ntxiv yuav tsum tau coj los tiv thaiv hydrogen-inducts tawg.
Tsis txhob muaj qhov kub hauv qab no32 ARCE F (0} degree)Tshwj tsis yog tias cov khoom siv hauv paus tau raug ua kom zoo.
Tshav kub kub thaj chaw (Haz):
TusROJ KUB-EURER ZEAM (HORK)Ntawm Weld yuav tsum tau ua tib zoo tswj hwm, raws li thaj chaw no muaj ntau dua ntiav los tsoo vim qhov kub hloov thaum lub sij hawm hloov chaw. Nws yog ib qho tseem ceeb rau kev tswj kom tsim nyogPreheatthiabtom qab weld kev kho cua sov (pwht)kom txo qis kev pheej hmoo ntawm kev pheej hmoo ntawm baz cracking.
Ntsiab lus ntawm cov ntsiab lus tseem ceeb rau Vuam ATM A350 LF2:
PreheatCov Khoom Siv (250 Qib F rau 300 Degree F lossis 120 Qib rau 150 Qib).
Kev sivCov hluav taws xob qis-hydrogennyiamE7018lossisEr70s -6rauLub ntsej muag, Me nyuam mos, lossisTus tigvuam.
Xav zooTom qab weld kev kho cua sov (pwht)ntawm1100 degree f rau 1200 degree frau cov ntawv tuab lossis cov khoom siv hnyav.
Ceev ciaSib txuam Kubhauv qab400 degree f (200 degree).
Coj tsim nyogWeld Kev Tshuaj Ntsuam XyuasTom qab vuam.
Ua raws li kev nyab xeeb kev nyab xeeb thiab ib puag ncig, tshwj xeeb tshaj yog thaum vuam hauv txias lossis tsawg-kub.
Cov kauj ruam no yuav pab ua kom muaj kev ncaj ncees ntawm Welds rauASTM A350 LF2Cov ntaub ntawv, kom ntseeg tau lawv qhov kev ua tau zoo hauv cov ntawv thov tsawg-.
