Khoom zoo ntawm Seamless Hlau Calcium Hlau
High calcium rov qab npaum li cas Piv nrog rau cov tub ntxhais xov hlau, cov tub ntxhais hlau hlau muaj zog dua, compactness zoo dua thiab cov ntsiab lus calcium ntau dua. Nws tuaj yeem pub calcium rau qhov tob ntawm cov hlau molten thiab nyob rau lub sijhawm ntev dua hauv qab qhov tob tob, yog li ua tiav cov calcium rov qab ntau dua. Hauv kev siv tiag tiag, cov khoom siv-core calcium hlau rov qab tau siab dua li ntawm cov tub ntxhais hlau, thiab cov hlau tsis muaj calcium hlau yog siab dua li ntawm cov hlau stitched. Ib lub Hoobkas hauv tsev siv 1.5 hli seamless hlau calcium hlau, thiab SPHC steel qib muaj qhov ruaj khov rov qab los ntawm 38%.
Kev ruaj khov calcium ntxiv nyob rau hauv molten steel Cov ntaub ntawv tseem ceeb ntawm calcium-hlau hlau thiab silicon-calcium hlau yog calcium hmoov, thiab nws yog ib qho yooj yim kom muaj cov ntaub ntawv tsis sib xws thiab hollow phenomena. Cov khoom siv tseem ceeb ntawm cov tub ntxhais ua ntshiab calcium hlau yog ib qho tseem ceeb heev calcium core pillium cov ntsiab lus, ntau yam kev hnav khaub ncaws ntev dua, kom muaj kev kho hluav taws xob ntau dua.
Zoo dua rau kev tsim cov hlau huv Cov khoom siv-core ntshiab calcium hlau yog ib qho high-density ntshiab calcium core pas nrig, thiab qhov zoo yog yooj yim los xyuas. Qhov chaw me me ntawm cov tub ntxhais hlau tsis yooj yim rau oxidize thiab poob kev ua haujlwm, ua rau nws muaj lub neej txee ntev dua, thiab tuaj yeem txo cov calcium oxide inclusions polluting cov hlau molten mus rau theem qis; cov txheej txheem kev kho calcium ntawm cov khoom siv-core ntshiab calcium hlau tsis tuaj yeem nqa lwm cov oxides uas muaj nyob rau hauv cov hmoov-filled core xaim los ua paug cov hlau molten (piv txwv li: hlau oxide nyob rau hauv calcium-hlau hlau), thiab cov khoom-core. ntshiab calcium hlau tuaj yeem txo cov calcium noj ib tuj ntawm cov hlau thiab txo cov pa phem ntawm cov hlau molten piv rau cov tsoos hmoov-filled core hlau.
Txo kev siv zog ua haujlwm thiab ua kom cov khoom lag luam du Cov calcium-hlau hlau thiab silicon-calcium xaim tau ntim nrog cov hmoov, thiab muaj ntau cov ntaub ntawv tsis sib xws thiab hollow phenomena. Muaj feem ntau xaim tawg thiab xaim thaiv cov xwm txheej thaum lub sij hawm xaim pub mis, uas muaj qee yam cuam tshuam rau kev tsim steelmaking. Cov khoom siv-core ntshiab calcium hlau yog cov khoom siv high-density solid-core ntshiab calcium rod qhwv nrog lub plhaub tuab tuab, nrog cov xaim tawv zoo, uas tsis plam thiab deviate thaum xaim pub mis, thiab kev ua haujlwm zoo heev. Tsis tas li ntawd, tib lub kauj ntawm cov khoom-core ntshiab calcium hlau yog li ob zaug ntev dua li ntawm cov calcium-hlau hlau, thiab tus nqi siv tsawg dua. Tus naj npawb ntawm cov furnaces siv rau ib lub disc ntawm cov khoom-core ntshiab calcium hlau yog plaub npaug ntawm cov calcium-hlau hlau. Yog li ntawd, siv cov khoom siv-core ntshiab calcium hlau tsis yog tsuas yog ua rau cov xaim pub mis ua haujlwm zoo heev, tab sis kuj txo cov sij hawm threading zoo heev, thiab kev siv zog ntawm cov neeg ua haujlwm raug txo kom tsawg.
