1. Thaum vuam lub gantry crane, thawj kauj ruam yog kom nkag siab txog cov txheej txheem vuam ntawm lub gantry crane. Xaiv 3 rau txheej hauv qab. Siv 2 hli J557 vuam pas nrig nrog lub vuam tam sim no ntawm 110A, thiab hloov mus rau 4 hli J557 vuam pas nrig rau txhua txheej yav tom ntej nrog tam sim no ntawm 130-160A. Lub polarity ntawm lub hwj huam mov yuav tsum yog DC rov qab.
1. Thaum qhib qhov zawj ntawm cov khoom siv, nws yuav tsum tau muab sau tseg tias tom qab hloov cov hniav gantry crane, V-shaped grooves nrog qhov tob txog 12 hli yuav tsum qhib rau ob sab ntawm qhov sib koom ntawm cov hniav hauv paus thiab cov cam khwb cia hlau substrate. .
2. Xaiv cov txheej txheem vuam tsim nyog, tsuas yog cov ntaub ntawv tsim nyog tuaj yeem ua tau raws li qhov xav tau ntawm kev siv. Siv cov hydrogen tsawg thiab tawg resistant J557 welding rods ua cov khoom siv vuam.
4. Ceev faj kom tsis txhob muaj qhov tawg thaum vuam. Ci J557 vuam pas nrig ntawm 350 degree rau 1 teev ua ntej vuam; Preheat qhov chaw vuam mus txog 300 degree nrog nplaim taws; Txais siv txuas txuas arc ntsug vuam, ntau txheej thiab ntau dhau welding, xyuam xim rau txheej cov hniav uas tsis muaj qhov seem nrog cov av nkos daj lossis lwm yam ntaub ntawv ua ntej welding lub gantry crane; Tom qab txhua tus pas nrig vuam yog welded, tam sim ntawd rauj rauj cov hlaws dai kom txo tau qhov kev ntxhov siab, thiab ntxuav lub rauj rau txhua cov hlaws weld; Thaum lub sij hawm vuam, xyuam xim rau qhov kub ntawm lub interlayer tsis yog qis dua 300 degree kom txog thaum nws ncav cuag qhov siab ntawm substrate ua ntej qhov zawj qhib; Tom qab vuam, npog nrog asbestos daim ntaub rau rwb thaiv tsev thiab txias txias rau 8 teev, thiab ces siv lub kaum sab xis grinder polish thiab huv si ntawm vuam cheeb tsam.
