Submerged arc welding (SAW) yog cov txheej txheem vuam uas tau siv dav hauv ntau yam lag luam xws li nkoj tsim, tsim khoom, thiab kev tsim kho. Nws yog txheej txheem vuam-state uas tsim kom muaj kev ruaj ntseg ntawm ob lub hlau los ntawm cua sov rau lawv qhov chaw melting thiab sib txuas ua ke.
Cov txheej txheem SAW suav nrog ib qho arc uas yog tsim los ntawm cov khoom siv txuas ntxiv ntawm cov hlau electrode thiab cov khoom ua haujlwm. Lub arc yog submerged nyob rau hauv ib txheej ntawm flux uas tiv thaiv qhov vuam cheeb tsam ntawm huab cua thiab lwm yam atmospheric paug. Qhov no tso cai rau kom huv thiab meej dua weld.
Ib qho txiaj ntsig tseem ceeb ntawm SAW yog tias nws tuaj yeem tsim cov welds zoo tshaj qhov chaw loj heev sai. Nws yog qhov zoo tagnrho rau vuam cov ntaub ntawv tuab thiab feem ntau siv rau cov qauv hlau, cov kav dej, thiab cov hlab ntsha siab. Cov txheej txheem tsim me me kom tsis muaj spatter, uas ua rau nws muaj kev nyab xeeb thiab muaj txiaj ntsig zoo rau kev ua haujlwm vuam.
Tsis tas li ntawd, SAW yog qhov yooj yim rau automate, uas ua rau nws muaj kev xaiv nrov rau kev siv ntau lawm. Nws tuaj yeem txo cov nqi zog ua haujlwm thiab lub sijhawm vuam thaum tuav cov qauv zoo. Cov txheej txheem kuj yog ib puag ncig tus phooj ywg raws li nws tsim cov pa taws tsawg thiab emissions piv rau lwm cov txheej txheem vuam.
Submerged arc vuam yog ib txoj kev siv dav rau kev tsim cov kav dej zoo. Cov txheej txheem no suav nrog kev tsim cov vuam ntawm ob daim hlau uas siv cov khoom siv hluav taws xob thiab cov khoom siv flux. Cov flux melts thiab tsim cov txheej txheem tiv thaiv ntawm slag hla lub vuam, uas tiv thaiv kev sib kis thiab oxidation ntawm cov hlau molten. Muaj ntau ntau hom submerged arc vuam kav uas feem ntau siv.
1. Kauv submerged arc vuam kav (SSAW / SAWH):
Cov kav dej no yog tsim los ntawm spirally welding steel strips ua ke, nrog rau txhua qhov txuas txuas txuas ntxiv rau yav dhau los. Spiral SAW kav feem ntau yog siv rau kev xa cov roj, nkev roj, thiab lwm yam kua dej.
2. Ob chav submerged arc vuam kav:
Ob chav SAW kav yog tsim los ntawm vuam ob daim hlau ua ke. Cov kav dej no feem ntau yog siv rau cov ntawv thov siab, vim tias lawv tsis tshua muaj dej ntau dua li lwm cov kav dej.
3. Longitudinal submerged arc vuam kav (LSAW / EFW / SAWL):
LSAW kav yog tsim los ntawm vuam steel phaj ua ke nyob rau hauv ib tug longitudinal orientation. Cov kav dej no feem ntau siv rau kev xa cov pa roj, roj, thiab lwm yam kua dej.
4. Hluav taws xob tsis kam vuam kav (ERW):
ERW cov kav dej yog tsim los ntawm kev hla hluav taws xob los ntawm ob daim hlau, uas ua rau lawv kub thiab yaj ua ke. Qhov no yog ib txoj hauv kev nrov rau kev tsim cov kav dej uas siv rau hauv kev tsim kho thiab kev tsim khoom.
Hauv kev xaus, submerged arc vuam kav los ntawm ntau hom thiab siv rau kev siv sib txawv nyob ntawm lawv cov khoom tshwj xeeb. Txawm hais tias hom submerged arc vuam yeeb nkab tau xaiv, nws yog ib txoj hauv kev txhim khu kev qha thiab muaj txiaj ntsig rau kev tsim cov kav dej muaj zog thiab ruaj khov.
