550mm siab zog graphite electrode
HP graphite electrode feem ntau yog ua los ntawm roj av coke thiab koob coke, Nws muaj peev xwm nqa tau qhov ceev tam sim no 18-25A / cm2.Nws yog tsim los rau siab zog hluav taws xob arc rauv steel-ua.
Niaj hnub nimno steelmaking txoj kev mas suav nrog converter steelmaking thiab hluav taws xob rauv steelmaking.Qhov tseem ceeb tshaj plaws ntawm qhov sib txawv ntawm cov hluav taws xob hluav taws xob hluav taws xob steelmaking thiab kev hloov pauv steelmaking txoj kev yog qhov hluav taws xob rau hluav taws xob steelmaking txoj kev siv hluav taws xob hluav taws xob ua hluav taws xob, thiab hluav taws xob arc rauv steelmaking txoj kev yog feem ntau siv.
EAF steelmaking yog tsim los ntawm cov hluav taws xob arc tsim los ntawm kev tawm ntawm cov electrode thiab tus nqi, uas hloov hluav taws xob hluav taws xob mus rau lub zog thermal hauv lub teeb pom kev, thiab siv cov hluav taws xob ncaj qha ntawm hluav taws xob thiab arc kom sov thiab yaj cov hlau thiab slag rau smelt. hlau thiab alloys ntawm ntau yam compositions.
Yam Khoom
| Kev sib piv kev qhia tshwj xeeb rau HP Graphite Electrode 22 " | ||
| Hluav taws xob | ||
| Yam khoom | Chav tsev | Supplier Spec |
| Cov yam ntxwv ntawm tus ncej | ||
| Nominal Dia | mm | 550 |
| Max Txoj kab uas hla | mm | 562 ib |
| Min Dia | mm | 556 ib |
| Nominal Ntev | mm | 1800-2400 Nws |
| Max Ntev | mm | 1900-2500 Nws |
| Min Ntev | mm | 1700-2300 Nws |
| Kev ceev ceev | g/cm3 | 1.68-1.72 ib |
| transverse zog | MPa | ≥10.0 |
| Young' Modulus | GPa | ≤ 12.0 |
| Tshwj xeeb Resistance | µ Ωm | 5.2-6.5 |
| Qhov siab tshaj plaws tam sim no | KA/cm2 | 14-22 |
| Lub peev xwm nqa tam sim no | A | 34000-53000 Nws |
| (CTE) | 10-6 ℃ | ≤ 2.0 |
| cov ntsiab lus tshauv | % | ≤0.2 |
| Cov yam ntxwv ntawm lub txiv mis (4TPI / 3TPI) | ||
| Kev ceev ceev | g/cm3 | 1.78-1.83 Nws |
| transverse zog | MPa | ≥22.0 |
| Young' Modulus | GPa | ≤ 15.0 |
| Tshwj xeeb Resistance | µ Ωm | 3.2-4.3 |
| (CTE) | 10-6 ℃ | ≤1.8 |
| cov ntsiab lus tshauv | % | ≤0.2 |
Graphite electrode muaj pes tsawg leeg
1.Petroleum coke yog dub thiab ntxeem tau, carbon yog lub ntsiab muaj pes tsawg leeg, thiab cov ntsiab lus tshauv yog tsawg heev, feem ntau qis dua 0.5%.
Petroleum coke tuaj yeem muab faib ua ob hom coke nyoos thiab calcined coke raws li kev kho cua sov.Lub qub muaj ib tug loj npaum li cas ntawm volatile teeb meem thiab tsis tshua muaj mechanical zog.Cov calcined coke yog tau los ntawm calcining cov raw coke.
Petroleum coke tuaj yeem muab faib ua cov sulfur coke siab (nrog cov ntsiab lus sulfur siab tshaj 1.5%), nruab nrab sulfur coke (nrog cov ntsiab lus sulfur 0.5% -1.5%), thiab qis sulfur coke (nrog rau cov ntsiab lus sulfur hauv qab 0.5%) raws li qib sulfur.Graphite electrodes thiab lwm yam khoom siv graphite feem ntau yog tsim los siv cov coke uas tsis muaj sulfur.
2.Needle coke yog ib hom zoo coke nrog pom tseeb fiber ntau zoo nkauj, tshwj xeeb tshaj yog thermal expansion coefficient thiab yooj yim graphitization.Yog li ntawd, koob coke yog ib qho tseem ceeb raw khoom rau kev tsim high-power los yog ultra-high-power graphite electrodes featured nrog tsawg resistivity, me me thermal expansion coefficient, thiab zoo thermal shock kuj.
3.Coal pitch yog ib qho ntawm cov khoom tseem ceeb ntawm thee tar tom qab ua tiav.Nws yog kev sib xyaw ntawm ntau cov hydrocarbons.Coal pitch yog siv los ua cov ntaub ntawv thiab cov khoom siv impregnating.Nws qhov kev ua tau zoo muaj txiaj ntsig zoo rau qhov zoo ntawm graphite electrodes.
