Nyob rau hauv peb lub neej, peb feem ntau tau cuam tshuam nrog kev siv ntau yam khoom ua los ntawm cam khwb cia hlau, uas nyob rau hauv nws cov qauv yog ntau yam khoom tawg, tab sis nrog cov zoo thermal conductivity. Raws li qhov no, cov lus nug feem ntau tshwm sim, yuav ua li cas ua noj nws, vim tias cov hlau nrum, vim nws cov ntsiab lus siab ntawm carbon, sulfur thiab phosphorus, nyob nrog pawg ntawm cov hlau tsis zoo welded?
Cov Lus Qhia
Kauj ruam 1
Txhawm rau rho tawm cov lus sib dhos ntawm cov tshuaj sib xyaw ntawm cov cam khwb cia hlau, tshuaj lom neeg thiab lwm yam txheej txheem tshwm sim thaum lub sijhawm vuam, cia peb tseem paub: yuav ua li cas weld nrum hlau? Kev lag luam ntawm peb lub teb chaws tsim cov grey thiab dawb cam khwb cia hlau, uas sib txawv ntau ntawm lawv cov qauv thiab cov yam ntxwv. Raws li, cov vuam txoj kev sib txawv rau lawv. Ntawm no nws yuav tsum nco ntsoov tias nws yog qhov ua tsis yooj yim rau weld cam khwb cia hlau cov khoom lag luam uas tau raug rau qhov kub siab los ntawm 300 degrees thiab siab dua rau lub sijhawm ntev, nrog rau cov khoom lag luam uas tau ua haujlwm ntev ntev nyob rau hauv kev sib cuag nrog ntau cov roj.
Kauj ruam 2
Txoj kev siv tau feem ntau ntawm kev siv cov hlau cam hauv peb tsev neeg yog vuam siv lub tshuab fais fab vuam. Yog li, thaum hluav taws xob vuam, ua rau V-txiav ntawm cov npoo los txhawm rau txuas thiab txhuam kom huv lawv los ntawm roj, xeb thiab av nrog txhuam.
Kauj ruam 3
Yuav cov electrodes nrog UONI-13/45 txheej (vuam nrog cov electrodes yog nqa tawm nrog kev ncaj qha tam sim no ntawm thim rov qab polarity).
Kauj ruam 4
Thov lub weld seam rau hauv cov ntu sib cais (tawg), qhov no yuav pab koj kom tsis txhob muaj qhov tsis xws cua kub ntawm ntu (cais cov ntu ntawm lub qhov rooj sib dhos yuav tsum tsis pub tshaj 10 cm). Thaum cov khoom siv vuam nrog cov tuab ntau dua 5 hli, tsis txhob hnov qab ua kom ruaj khov rau lub npoo los ntawm ib qho ntev sib npaug nrog tuab ntawm ib feem yuav tsum tau welded.
Kauj ruam 5
Thaum lub sijhawm vuam, tsis txhob hnov qab tso cai rau cov tshooj sib cais welded kom txias kom txog 60-80 degrees. Thaum vuam hlau siv hlau siv cov yeeb yam, ua cov hauv qab no: siv laum (staggered), tho qhov hauv qhov npaj tau (tsis yog los ntawm!), Txiav ib txoj xov thiab ntsia hlau rau hauv lawv qhov qis carbon steel studs (lub kaum sab xis ntawm qhov sawv ntawm qhov chaw yuav tsum tau welded yuav tsum yog 90 degrees).
Kauj Ruam 6
Ntxig cov tub ntxhais ntawm txoj kab uas hla loj dua rau hauv qhov zawj. Weld nrog electrodes nrog tiv thaiv alloying txheej ntawm E42 (42A) lossis E50 (50A) hom ntawm ncaj qha lossis hloov hluav taws xob tam sim no, thaum xaiv cov electrode tuab yog xaiv raws qhov tuab ntawm lub workpiece. yuav tsum tau welded.
Ua cov vuam txuas nws tus kheej los ntawm vuam cov studs nrog annular seam thiab tsuas yog tom qab sau qhov chaw ntawm lub welded studs thiab zawj nrog ntu ntu luv. Muaj lwm txoj kev ntawm vuam cam khwb cia hlau, tab sis peb yuav tham txog lawv tom qab.
