Dab tsi yog pawg ntawm graphite electrodes?
Raws li cov khoom siv sib txawv siv thiab qhov sib txawv ntawm lub cev thiab tshuaj indexes ntawm cov khoom tiav, graphite electrodes tau muab faib ua peb hom: lub zog zoo tib yam graphite electrodes (RP qib), siab zog graphite electrodes (HP qib) thiab ultra- siab zog graphite electrodes (UHP qib).
Qhov no yog vim hais tias cov graphite electrode feem ntau yog rau hluav taws xob arc steelmaking rauv ua cov khoom siv hluav taws xob siv nyob rau xyoo 20th xyoo 80 lub thoob ntiaj teb hluav taws xob steelmaking rauv hluav taws xob arc steelmaking rauv raws li qhov loj ntawm transformer input zog ib tuj ntawm lub cub tawg muaj peev xwm muab faib ua 3 pawg: lub zog hluav taws xob zoo tib yam (RP furnace) thiab hluav taws xob hluav taws xob (RP furnace) ultra-siab- fais fab rauv (UHP rauv). 20t lossis ntau dua ntawm lub tshuab hluav taws xob zoo tib yam rau ib tuj ntawm qhov cub muaj peev xwm, transformer fais fab input General rau 300kW / t los yog li ntawd; siab zog rauv rau 400kW / t los yog li ntawd; mus rau 40t hauv qab lub cub tawg input zog ntawm 500 ~ 600kW / t, 50 ~ 80t rauv input zog ntawm 400 ~ 500kW / t, 100t saum lub cub tawg input zog ntawm 350 ~ 450kW / t yog hu ua ultra{{18}.
Thaum kawg ntawm xyoo 1980, cov teb chaws tsim kev lag luam tau tshem tawm ntau qhov me me thiab nruab nrab- qhov cub hluav taws xob zoo tib yam hauv qab 50t, thiab feem ntau ntawm cov qhov cub tsim tshiab yog ultra- siab - lub cub hluav taws xob ntawm 80-150t, thiab lub zog hluav taws xob tau nce ntxiv ntawm 80 kW rau ultra-siab, 8 {0} Rauv thaum ntxov xyoo 1990 tau nce ntxiv mus rau 1000-1200kW / t. Covgraphite electrodesrau qhov siab thiab ultra-siab- lub cub hluav taws xob yog qhov xav tau ntau dua li cov khoom siv hauv lwm lub qhov cub, thiab lub zog nkag ntawm graphite tseem siab dua li cov siv hauv lwm qhov cub. Graphite electrodes tau ua haujlwm nyob rau hauv cov kev xav tau ntau dua, thiab cov teeb meem hauv qab no tshwm sim los ntawm kev nce ntxiv ntawm qhov ceev tam sim no los ntawm cov electrodes:
(1) Qhov kub ntawm cov electrode nce vim qhov kub thiab txias incandescent airflow, uas ua rau cov thermal expansion ntawm ob qho tib si electrode thiab cov pob qij txha, thaum lub oxidized noj ntawm cov electrode kuj nce.
Qhov kub ntawm qhov sib txawv ntawm qhov nruab nrab ntawm lub electrode thiab lub voj voog sab nraud ntawm lub electrode nce, thiab cov thermal stress tshwm sim los ntawm qhov kub thiab txias sib txawv nce raws li, ua rau cov electrode muaj kev cuam tshuam rau cov kab nrib pleb thiab nto spilling.
(3) Ua kom muaj zog electromagnetic, ua rau muaj kev vibration loj, nyob rau hauv kev co loj heev, lub electrode vim xoob kev sib txuas, debonding thiab ua rau muaj feem ntau ntawm kev puas tsuaj. Therefore, the physical and mechanical properties of high-power and ultra-high-power graphite electrodes must be better than ordinary power graphite electrodes, such as lower resistivity, higher bulk density and mechanical strength, the coefficient of thermal expansion should be small, and there is a good resistance to thermal shock performance.
Txhawm rau ua kom tau raws li cov kev xav tau ntawm steel mills los txhim kho ntau lub siab - lub zog thiab ultra- siab - fais fab fais fab, txij li xyoo 80 mus txog, Tebchaws Europe thiab Tebchaws Meskas, Nyiv lub Hoobkas carbon feem ntau tsim ob hom graphite electrodes ntawm cov qauv zoo, piv txwv li, siab - zog ultra{8} thiab graphite electrodes, thiab cov hluav taws xob zoo tib yam graphite electrodes tsis tshua tsim vim yog lub khw muag khoom me me. Graphite Electrode rau DC Arc Rauv DC Arc Rauv yog ib yam tshiab ntawm cov khoom siv hluav taws xob tsim hluav taws xob tsim thiab loj hlob thaum pib ntawm 1980's. Thaum pib, DC Arc Rauv tau hloov pauv raws li qhov qub AC Arc Rauv, thiab qee tus siv 3 graphite electrodes, thiab qee qhov siv 2 graphite electrodes.
Mus saibgraphite-electrode-products.comkom paub ntau ntxiv txog cov khoom. Yog tias koj xav paub ntau ntxiv txog tus nqi khoom lossis xav tau kev yuav khoom, thov xa email rauinfo@zaferroalloy.com. Peb yuav tau rov qab rau koj sai li sai tau thaum peb pom koj cov lus.