What yogflux cored vuam hlau (FCAW)
Flux-Cored Arc Vuam yog ib nrab- tsis siv neeg lossis tsis siv neeg arc vuam txheej txheem uas siv cov khoom siv hluav taws xob tsis tu ncua (cov xaim) uas muaj cov flux compound hauv cov hlau sheath. Cov txheej txheem tuaj yeem siv cov roj tiv thaiv (feem ntau hu ua "dual-shield") lossis ua tus kheej-shielding, ua rau nws muaj ntau yam zoo kawg.
Ua li casflux cored welding hlauUa hauj lwm?
Lub tswv yim tseem ceeb yog tias cov hlau nws tus kheej muaj cov khoom siv uas pab txhawb txoj kev vuam. Thaum lub arc raug ntaus, ntau yam tshwm sim ib txhij:
Hlau sheath melts:Qhov no tsim cov hlau weld, fusing nrog cov khoom siv hauv paus.
Lub flux core reacts:Lub tshav kub los ntawm arc ua rau cov flux compounds teb, ua ib los yog ntau tshaj qhov tseem ceeb functions:
Ua ib qho Slag npog:Lub flux tsim ib txheej tiv thaiv ntawm slag tshaj lub molten weld pas dej ua ke thaum nws txias. Cov slag no tiv thaiv cov hlau kub los ntawm atmospheric paug (oxygen thiab nitrogen), zoo li cov hlaws hlaws, thiab pab nws txias sib npaug.
Muab Shielding Gas:Nyob rau hauv ntau cov xov hlau, lub flux tsim ib tug shielding gas vapor uas ntxiv tiv thaiv lub arc thiab weld pas dej ua ke.
Deoxidizing thiab Purifying:Cov flux muaj cov deoxidizers (xws li silicon thiab manganese) uas "scavenge" impurities los ntawm lub pas dej ua ke, ua rau muaj kev huv, muaj zog weld. Qhov no yog tshwj xeeb tshaj yog pab tau rau me ntsis rusty los yog qias neeg hlau.
Ntxiv Alloying Elements:Cov flux tuaj yeem ntxiv cov alloys tshwj xeeb rau cov hlau vuam kom ua tiav cov khoom siv kho tshuab xws li lub zog, toughness, lossis corrosion kuj.
Stabilizing lub Arc:Cov tshuaj nyob rau hauv cov flux pab tswj kom ruaj khov thiab zoo ib yam arc.
