uhp600 graphite electrode tsom xam thiab kev daws rau qhov kawg thaiv poob thaum EAF smelting

1. Ntau cov nroj tsuag steel ntsib teeb meem ntawm qhov kawg thaiv poob rau qee qhov thaum lub sij hawm smelting ntawm steel billets. Thaum EAF smelting, tam sim no ntawm UHP600 electrode tuaj yeem ncav cuag 90, 000A, thiab qhov ceev tam sim no tuaj yeem ncav cuag li 25A / cm². Nyob rau hauv tus txheej txheem ntawm smelting, qhov cross-sectional cheeb tsam ntawm UHP600 yuav maj mam txo. Nyob rau hauv tas li tam sim no tej yam kev mob, nrog ib tug txo nyob rau hauv electrode cross-sectional cheeb tsam thiab ib tug nce nyob rau hauv tam sim no ceev, lub load-bearing muaj peev xwm ntawm lub electrode nce. Ua ke nrog lub zog exerted los ntawm hauv qab ib feem ntawm hluav taws xob arc rauv ntawm electrodes, ob qho tib si sab nraud rog thiab sab hauv zog ua rau electrodes nce. Yog li ntawd, cov kab nrib pleb tuaj yeem tshwm sim nrog rau qhov kawg thaiv ntog lossis detachment. Yog tias qhov xwm txheej no tshwm sim thiab peb txuas ntxiv tuav lub sijhawm tam sim no thaum lub hom phiaj los txhim kho cov peev txheej tsim khoom thiab cov khoom tsim tawm, nws yog ib qho kev zam uas cov blocks hauv qab yuav poob.

 

2. Cov yam tseem ceeb uas cuam tshuam rau qhov kawg thaiv qhov poob los yog detachment muaj xws li: lub peev xwm loj ntawm lub tshuab hloov pauv; peb-theem imbalance; high voltage theem nrab; siab tshaj theem nrab tam sim no; siv roj ntau dhau.

 

3. Kev daws: Maj mam nce tam sim no thaum lub sij hawm smelting txheej txheem kom txo tau tus nqi noj. Raws li melting zuj zus, maj mam nyias tawm electrode xaus kom txog thaum lawv sublime deb vim yog yaig los ntawm molten slag (uas infiltrates rau hauv lub pas dej molten). Tau kawg, kev siv hluav taws xob zoo sib xws nrog cov qauv tsim thiab kev ua haujlwm tshwj xeeb rau txhua qhov hluav taws xob arc rauv hluav taws xob koom nrog lub sijhawm no - kev nce tam sim ntawm cov hluav taws xob tam sim no yuav tsum zam kom ntau li ntau tau txij li ua tau zoo txo ​​cov electrode noj tus nqi.