Ladle muaj cov nyhuv ntev nozzle. Thaum molten hlau yog poured los ntawm ladle mus rau tundish, thiaj li yuav zam oxidation thiab splashing, ib tug ntev nozzle yog ntsia nyob rau hauv qis kawg ntawm lub zawv zawg nozzle nyob rau hauv qab ntawm lub ladle, ib kawg yog txuas nrog lub qis nozzle, thiab lwm yam kawg. yog muab tso rau hauv lub molten steel ntawm tundish rau sealing tiv thaiv thiab pouring. Kev ua haujlwm ntawm qhov ntev nozzle yog raws li hauv qab no:
(1) Tiv thaiv oxidation theem nrab ntawm cov hlau molten thiab txhim kho cov hlau zoo
(2) Txo cov deposition ntawm oxidation khoom ntawm yooj yim oxidized ntsiab nyob rau hauv steel nyob rau hauv lub puab phab ntsa ntawm lub qhov hluav taws xob dej thiab txuas nws lub neej kev pab cuam.
(3) Lub taub dej ntev ntev tuaj yeem siv tau ntau zaus los txo cov khoom siv refractory
https://www.lktrefractories.com/steel-flow-control-refractories/ladle-slide-gate/ladle-shroud.html
Nta ntawm ntev spout:
1. Ntau hom tshuab tshuab tuaj yeem xaiv tau raws li qhov xav tau
2. Anti-oxidation txheej tuaj yeem tiv thaiv cov ntaub ntawv carbon bonded los ntawm oxidized
3. Refractory fiber ntau daim pam tiv thaiv kom tsis txhob kub thaum lub sij hawm steel pouring
4. Cov txheej txheem aluminium carbon lub cev khoom muaj cov khoom zoo heev, tsis tawg, corrosion kuj
5. Cov txheej txheem siab ntawm mismaterial kom ntseeg tau tias cov kab slag tau zoo heev corrosion kuj
6. Cov khoom siv magnesium ua kom ntseeg tau tias cov kab slag muaj kev tiv thaiv zoo heev rau Ca kho steel
7. Cov khoom siv hauv cov pa roj carbon monoxide ua kom cov khoom siv tshwj xeeb ntawm cov pa roj carbon tsawg, silicon steel thiab cov hlau huv.
Lub luag haujlwm ntawm qhov ntev nozzle yog:
Tiv thaiv qhov thib ob oxidation ntawm molten steel, txhim kho cov hlau zoo, txo cov khoom oxidation ntawm yooj yim oxidized ntsiab nyob rau hauv cov hlau tso rau ntawm phab ntsa sab hauv ntawm lub nozzle, ncua nws cov kev pab cuam lub neej; Lub nozzle ntev tuaj yeem siv ntau zaus los txo cov khoom siv refractory.
Lub qhov dej ntev ntev yuav tsum muaj cov khoom nram qab no:
Zoo heev thermal shock tsis kam; Zoo mechanical zog thiab kev co kuj; Zoo corrosion kuj rau molten steel thiab slag; Lub sab sib koom yuav tsum muaj cov cuab yeej cua foob.
Ntev keter yog cov kws tshaj lij refractory chaw tsim tshuaj paus, muab koj cov khoom zoo refractory thiab cov kev pabcuam zoo tshaj plaws rau lub sijhawm ntev.
