Lub ntsiab yog vim li cas vim li cas cov ntsiab lus xws li phosphorus thiab sulfur yuav tsum tau muab tshem tawm thaum lub sij hawm steelmaking txheej txheem yog tias cov ntsiab lus no muaj kev cuam tshuam tsis zoo rau cov khoom ntawm hlau. Tshem tawm lawv tuaj yeem txhim kho qhov zoo thiab kev ua haujlwm ntawm cov hlau.
Qhov tseem ceeb ntawm Phosphorus Tshem Tawm
1, cuam tshuam rau plasticity thiab toughness ntawm steel:
Cov ntsiab lus phosphorus siab yuav ua rau kom txias brittleness ntawm hlau, txo nws cov plasticity thiab toughness, thiab ua rau nws yooj yim rau tawg thiab tawg, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias ib puag ncig.
2, cuam tshuam kev ua haujlwm:
Cov ntsiab lus phosphorus ntau dhau yuav cuam tshuam rau kev ua haujlwm ntawm cov hlau, xws li tawg tawg thiab deformation thaum ua haujlwm txias.
3, Muaj feem xyuam rau vuam kev ua tau zoo:
Phosphorus yuav mloog zoo nyob rau hauv lub weld cheeb tsam thaum lub sij hawm vuam txheej txheem, tsim nkig tshuaj, txo lub zog thiab toughness ntawm welded sib koom, thiab cuam tshuam rau stability thiab kev cia siab ntawm tag nrho cov qauv.
Qhov tseem ceeb ntawm kev tshem tawm sulfur
1, cuam tshuam rau kev ua haujlwm ntawm cov hlau:
Cov ntsiab lus sulfur siab yuav txo cov txheej txheem ntawm cov hlau, ua rau nws yooj yim rau thermal tawg thiab thermal tawg thaum lub sij hawm ua, cuam tshuam cov txheej txheem operability thiab formability.
2, Muaj feem xyuam rau vuam kev ua tau zoo:
Sulfur kuj muaj qhov cuam tshuam tsis zoo rau kev ua haujlwm vuam, ua rau muaj kev pheej hmoo ntawm qhov pores thiab molten qhov tsim thaum lub sij hawm vuam, thiab txo qhov zoo ntawm cov pob qij txha.
Hom ferro alloy yog siv los tshem tawm phosphorus thiab sulfur
Hauv cov txheej txheem steelmaking, feem ntau siv ferroalloys siv los tshem tawm phosphorus thiab sulfur yog:
Calcium silicon alloy:Feem ntau yog siv los tshem tawm phosphorus. Los ntawm kev ntxivcalcium silicon alloy, phosphorus tuaj yeem txo qis rau calcium phosphide, uas tuaj yeem sib cais los ntawm cov hlau molten thiab daim ntawv slag, yog li tshem tawm cov ntsiab lus phosphorus.
Manganese silicon alloy:siv los tshem cov sulfur.Manganese silicon alloytuaj yeem txo cov sulfur hauv cov hlau molten rau manganese sulfide, uas kuj ua rau slag, kom ua tiav lub hom phiaj ntawm kev tshem cov sulfur.
Cov ferroalloys no ntxiv rau lub cub tawg thaum lub sij hawm steelmaking txheej txheem thiab tag nrho tov thiab react nrog cov hlau molten kom ua tiav lub hom phiaj ntawm tshem tawm cov teeb meem xws li phosphorus thiab sulfur thiab txhim kho qhov zoo thiab kev ua tau zoo ntawm cov hlau kawg.
