Submerged arc welding (xws li submerged arc surfacing thiab electroslag surfacing, thiab lwm yam) yog ib txoj hauv kev uas arcs raug hlawv nyob rau hauv lub flux txheej rau vuam. Nws cov txiaj ntsig zoo xws li cov vuam zoo ruaj khov, cov khoom siv vuam zoo, tsis muaj arc thiab cov pa taws me me thiab cov plua plav, ua rau nws txoj kev vuam tseem ceeb hauv kev tsim cov hlau tseem ceeb xws li cov hlab ntsha siab, cov yeeb nkab ntu kev tsim khoom, lub thawv kab teeb thiab kab. Txawm hais tias tau muaj ntau txoj kev ua tau zoo tshiab thiab zoo vuam txoj kev, daim ntawv thov teb ntawm submerged arc vuam tseem tsis cuam tshuam. Los ntawm qhov kev xav ntawm qhov hnyav ntawm cov hlau tso rau ntawm ntau yam fusion vuam txoj kev, submerged arc vuam account rau txog 10%, thiab nws tsis tau hloov ntau xyoo.
Thaum lub vuam hlau raug txiav txim siab (feem ntau nyob ntawm hom hlau yuav tsum tau welded), qhov kev txhawb nqa flux dhau los ua cov khoom tseem ceeb, uas cuam tshuam ncaj qha rau cov khoom siv ntawm cov hlau vuam (tshwj xeeb tshaj yog cov yas thiab tsis tshua muaj kub toughness), tawg tsis kam, thiab welding defect tshwm sim Thiab vuam productivity. Qhov hnyav piv ntawm vuam hlau rau flux yog: vuam hlau: flux=1.1 ~ 1.6, nyob ntawm seb hom vuam sib txuas, hom flux siv, thiab vuam specification tsis. Piv nrog rau smelted flux, tus nqi ntawm sintered flux yog ntau yig, li 20% tsawg dua.
Tus nqi ntawm cov flux siv nyob rau hauv peb lub teb chaws fluctuates nyob ib ncig ntawm 50, 000 tons, uas 70% yog hais txog smelted flux, thiab tus so yog non-melted flux. Cov teb chaws tsim kev lag luam hauv Tebchaws Europe thiab Tebchaws Meskas feem ntau siv cov dej tsis huv, uas yog li 80% lossis ntau dua 90%. Txawm li cas los xij, tseem muaj kev tsim khoom thiab muag khoom ntawm fused flux. Cov khoom tsim tau ntev ntev ntawm fused flux muaj feem xyuam rau qee yam ntawm cov yam ntxwv.
