Kua-cored welding hlau yog ib yam khoom uas ua tiav vuam los ntawm kev sau lub hollow hlau nrog flux hmoov. Nws qhov txiaj ntsig tseem ceeb nyob hauv kev sib txuas cov tshuaj tiv thaiv ntawm cov khoom siv hlau nrog cov hmoov flux. Nws khaws cov khoom siv hluav taws xob ntawm cov khoom siv vuam hlau thaum muab kev tiv thaiv dual los ntawm cov pa roj thiab cov slag tsim los ntawm decomposition ntawm cov hmoov flux, txhim kho qhov zoo ntawm weld. Nws daim ntawv thov npog thaj chaw xws li kev tsim khoom, kev tsim khoom nkoj, thiab kev tsim choj choj, thiab nws yog qhov tshwj xeeb tshaj yog tsim rau cov ntawv thov uas yuav tsum tau muaj zog vuam thiab corrosion kuj.
Noj stainless hlau flux-cored vuam hlau ua piv txwv, nws cov khoom tseem ceeb yog feem ntau 304 lossis 316L stainless hlau. Los ntawm kev kho cov flux hmoov muaj pes tsawg leeg (xws li fluorides thiab hlau oxides), lub arc stability, droplet hloov qauv, thiab slag kev pab them nqi thaum lub sij hawm vuam yuav tswj tau. Piv txwv li, ib yam ntawm cov flux-cored vuam hlau muaj qhov melting point ntawm 612℃thiab vuam tam sim no ntau ntawm 114-189A. Qhov kev tsim qauv no tso cai rau nws hloov mus rau ob qho tib si siab - nrawm vuam ntawm nyias daim hlau thiab qhov xav tau tob tob ntawm cov phaj tuab. Arc stabilizers nyob rau hauv flux hmoov txo spatter, deoxidizers qis weld porosity, thiab cov ntsiab lus alloying kho cov khoom siv ntawm cov hlau weld los ntawm kev hloov pauv hauv pas dej ua ke.
Hais txog cov txheej txheem welding adaptability, flux- cov xov hlau cored tsis tshua nkag siab rau hom tam sim no dua li cov xov hlau. Noj CO2 roj shielded vuam ua piv txwv, flux- cov xov hlau cored tuaj yeem ua tiav cov kev hloov pauv ruaj khov hauv ob qho tib si CO₂ thiab cov pa roj sib xyaw los ntawm kev kho cov pa roj- tsim cov neeg sawv cev muaj pes tsawg leeg hauv cov hmoov flux, thaum cov xov hlau muaj kev cuam tshuam ntau dhau hauv cov chaw ntshiab CO₂. Tsis tas li ntawd, flux-cored xov hlau muaj kwv yees li 20% siab dua deposition efficiency tshaj cov xov hlau, ua tsaug rau cov cua kub ntxiv los ntawm flux decomposition accelerating lub hauv paus hlau melting txheej txheem.
Cov qauv tsim ntawm flux- cov xov hlau cored qhia cov yam ntxwv sib txawv kom tau raws li cov kev xav tau ntawm cov khoom siv sib txawv. Piv txwv li, flux-cored xov hlau rau huab cua steel sib txuas cov ntsiab lus xws li tooj liab thiab phosphorus los txhim kho qhov weld lub atmospheric corrosion kuj; flux-cored xov hlau rau qis-kub steel tswj cov ntsiab lus nickel kom ntseeg tau zoo weld toughness txawm nyob ntawm -40℃. Lub hom phiaj tsim qauv no ua rau cov khoom siv hluav taws xob-cored welding tseem ceeb dua rau kev ua haujlwm nyuaj dua li cov khoom siv vuam tsoos.
