9 txoj hauv qab no yog xav tau rau lub tshuab xaim ntawm cov kav hlau tsis huv welded:
1. Siv lub zog hluav taws xob nrog cov yam ntxwv sab nraud ntawm sab nraud, thiab siv cov lus zoo thaum ncaj qha tam sim no (xaim hlau txuas nrog cov hluav taws xob tsis zoo).
2. Feem ntau tsim nyog rau vuam daim nyias nyias hauv qab 6 hli, nrog cov yam ntxwv ntawm cov duab hlau zoo nkauj thiab tsis xaim me me.
3. Cov roj av tiv thaiv tau argon nrog qhov ntshiab huv ntawm 99.99%. Thaum lub vuam tam sim no yog 50 ~ 50A, cov khoom ntws argon yog 8 ~ 0L / min, thiab thaum lub sijhawm tam sim no 50 ~ 250A, cov khoom ntws argon yog 2 ~ 5L / min.
4. Lub sijhawm tiv thaiv qhov ntev ntawm lub tungsten electrode los ntawm cov pa roj nozzle nyiam dua 4 ~ 5mm. Nws yog 2 ~ 3 hli nyob rau hauv cov chaw uas muaj cov khoom tsis zoo rau kev tiv thaiv zoo li fillet vuam, thiab 5 ~ 6mm nyob rau hauv qhov chaw nrog qhov tob tob. Qhov deb ntawm lub nozzle mus rau kev ua haujlwm feem ntau tsis Ntau tshaj 5mm.
5. Txhawm rau tiv thaiv cov tsos ntawm vuam pores, txhua yam xeb thiab roj nyob ntawm qhov chaw vuam yuav tsum raug muab tu kom huv.
6. Rau kev vuam arc ntev, 2 ~ 4mm yog qhov zoo dua thaum vuam hlau zoo tib yam, thiab ~ 3 hli yog qhov zoo dua thaum vuam hlau stainless. Yog tias nws ntev heev, kev tiv thaiv tiv thaiv yuav tsis zoo.
7. Txhawm rau tiv thaiv lub nraub qaum sab hauv qab ntawm weld hlaws los ntawm oxidized, sab nraub qaum kuj yuav tsum muaj kev tiv thaiv los ntawm roj.
8. Txhawm rau ua kom cov roj argon zoo tiv thaiv vuam pas thiab ua kom yooj yim rau kev ua haujlwm vuam, qhov nruab nrab txoj kab nruab nrab ntawm cov tungsten electrode thiab cov haujlwm vuam feem ntau yuav tsum tswj lub kaum sab xis ntawm 80 ~ 85 °, thiab lub kaum sab xis nruab nrab ntawm cov muab tub lim ntawm cov pas hlau tsis muaj stainless welded yeeb nkab thiab saum npoo ntawm kev ua haujlwm yuav tsum kom ze li sai tau Me me, feem ntau ncig 0 °.
9. Cua tsis zoo thiab cua. Qhov twg muaj cua, nws yog qhov yuav tsum tau txais yuav lub thaiv thaiv kom txo tau qhov kev cuam tshuam ntawm cua, thaum nyob sab hauv tsev yuav tsum haum.