Cored xov hlau yog cov khoom siv txuas ntxiv uas muaj cov hlau nplaum uas muaj cov tub ntxhais ntawm cov dej ntws los yog lwm yam khoom siv. Lawv tau tsim los txhim kho cov txheej txheem vuam los ntawm kev txhim kho qhov ua tau zoo, ruaj khov, thiab zoo ntawm welds. Cored xov hlau yuav siv tau nyob rau hauv ntau yam vuam txheej txheem, nrog rau cov roj hlau arc vuam (GMAW) thiab flux-cored arc vuam (FCAW).
Cov khoom tseem ceeb hauv cov xov hlau cored tuaj yeem muab ntau yam txiaj ntsig, xws li:
Fluxing Agents: Cov no pab hauv deoxidizing thiab ntxuav cov hlau molten, uas ua rau lub vuam vuam.
Alloying Elements: Qee cov xov hlau cored muaj cov ntsiab lus alloying uas tuaj yeem kho qhov kawg ntawm cov hlau vuam, xws li hardness, lub zog, thiab corrosion kuj.
Tiv thaiv Gas: Qee zaum, cov tub ntxhais yuav pab txhawb kev tsim cov roj tiv thaiv thaum lub sij hawm vuam, uas tiv thaiv lub pas dej molten weld los ntawm atmospheric paug.
Cored xov hlau feem ntau nyiam rau lawv cov kev ua tau zoo thiab muaj peev xwm ua haujlwm hauv ntau txoj haujlwm thiab cov xwm txheej, ua rau lawv tsim nyog rau ntau yam kev siv hauv kev lag luam xws li kev tsim kho, tsim khoom, thiab kho.
