Corrosion Resistant Graphite Electrode 600 hli

Vim li cas Corrosion Resistance Matters hauv Loj -Diameter Electrodes

Hluav taws xob arc rauv ua rau qee qhov kev ua haujlwm hnyav tshaj plaws nyob rau hauv kev lag luam metallurgy. Nyob rau hauv lub cub tawg kab noj hniav, ib tug 600 hli graphite electrode ntsib ib txhij ua phem los ntawm cov pa ntawm qhov kub thiab txias, reactive slag Cheebtsam, thiab sai thermal transients. Yog tsis muaj kev tiv thaiv txaus, lub electrode nto oxidizes, nws cov ntsis erodes, thiab cov qauv kev ntseeg degrades deb sai dua li cov pa roj carbon matrix yuav txwv tsis pub. Corrosion-cov tshuaj tiv thaiv thiab kev kho saum npoo yog li tsis yog kev xaiv kev txhim kho tab sis tseem ceeb tsim qauv rau kev ua haujlwm steel niaj hnub.

Peb Hom Electrode Degradation

To taub yuav ua li cas ib tug 600mm electrode ua tsis tau tejyam nyob rau hauv kev pab qhia meej vim li cas corrosion kuj commands xws li mloog. Kev soj ntsuam teb thiab kev tshawb fawb hauv chav kuaj pom peb txoj hauv kev degradation tseem ceeb.

Nto oxidationtshwm sim thaum atmospheric oxygen los yog lub cub tawg tawm -gas hu rau qhov kub electrode nto. Tshaj li ntawm plaub puas degrees Celsius, graphite pib hnov ​​​​mob nrog oxygen los tsim carbon monoxide thiab carbon dioxide. Vim tias cov tshuaj tiv thaiv tus nqi nce exponentially nrog qhov kub thiab txias, thaj tsam tam sim ntawd nyob ib sab ntawm lub arc raug kev puas tsuaj sai tshaj plaws. Cov electrodes uas tsis muaj kev tiv thaiv tuaj yeem poob qhov loj ntawm txoj kab uas hla los ntawm cov txheej txheem no ib leeg.

Ntsis spalling thiab peelingtshwm sim los ntawm thermal shock ua ke nrog tshuaj tua kab mob. Thaum molten slag splashes mus rau lub taub hau electrode, cov cua sov hauv zos ua rau qhov kub thiab txias gradients. Qhov tshwm sim thermal stresses ua rau nyias txheej txheej kom flake tawm. Nyob rau tib lub sijhawm, hom reactive nyob rau hauv slag nkag mus rau saum npoo pores thiab tawm tsam cov pa roj carbon matrix los ntawm sab hauv, ua rau cov nyiaj tsis muaj zog uas tuav cov khaubncaws sab nraud povtseg hauv qhov chaw.

Transverse tawg thiab tawgsawv cev rau hom kev ua tsis tiav uas kim tshaj plaws. Thermal cycling ntawm kev khiav hauj lwm thiab lub xeev tsis ua hauj lwm ua rau rov nthuav dav thiab contraction. Yog hais tias cov khoom siv electrode tsis txaus thermal shock tsis kam, tawg nucleate ntawm kev nyuaj siab concentrators thiab propagate thoob plaws seem. Lub electrode tawg tsis tsuas yog nkim qhov tseem ceeb ntawm qhov ntev, tab sis tseem cuam tshuam kev tsim khoom thaum cov neeg ua haujlwm rho tawm cov stub thiab xov hloov.

Anti-Oxidation Impregnation Technology

Ib qho ntawm cov tswv yim zoo tshaj plaws rau kev ncua lub neej ntawm electrode yog impregnating cov pa roj carbon monoxide nrog oxidation inhibitors. Tom qab ci tab sis ua ntej graphitization, cov hluav taws xob tau muab tso rau hauv lub tshuab nqus tsev - lub nkoj siab uas muaj cov kua tshuaj tiv thaiv - oxidant formulation. Cov tshuaj nkag mus rau saum npoo- txuas porosity thiab ua rau micro-voids thoob plaws hauv cheeb tsam ze - nto.

Feem ntau impregnants muaj xws li boron compounds, phosphates, thiab silicon -raws li ceramics. Tom qab kev kho cua sov tom qab, cov ntaub ntawv no tsim nyias, adherent oxide los yog carbide txheej ntawm cov pore sab hauv. Thaum cov electrode nkag mus rau hauv kev pabcuam, cov txheej txheem no ua raws li qhov cuam tshuam ntawm kev sib kis, ua kom cov pa oxygen mus rau cov chaw reactive carbon. Qhov tshwm sim yog ntsuas tau txo qis hauv oxidation tus nqi yam tsis muaj kev hloov pauv ntawm cov hluav taws xob ntau lossis cov khoom siv hluav taws xob ntawm cov electrode.

Kev tiv thaiv txheej txheej

Rau cov ntawv thov uas impregnation ib leeg ua pov thawj tsis txaus, manufacturers siv cov txheej txheem tiv thaiv sab nraud. Ceramic-raws li txheej txheej uas muaj txhuas oxide, silicon carbide, los yog boron nitride yog txau los yog txhuam rau ntawm electrode nto tom qab machining kawg. Cov coatings no tsim ib qho kev thaiv lub cev ntawm cov graphite substrate thiab cov cua kub cua.

Cov txheej txheem zoo tshaj plaws tseem ua raws li cov txheej txheem thermal excursion, resists spalling thaum thermal shock, thiab tsis muaj hluav taws xob insulate electrode nto. Cov txheej txheem qib siab suav nrog cov khoom sib xyaw ua ke uas hloov pauv ntawm cov ceramic- txheej txheej nplua nuj mus rau cov pa roj carbon - nplua nuj txheej sab hauv, txhim kho adhesion thaum tswj kev tiv thaiv. Coated electrodes feem ntau ua kom pom lub neej ntev dua kev sib tw thiab cov qauv siv tau ntau dua.

Corrosion-Related Performance Indicators

Cov txiaj ntsig ua haujlwm nyob rau hauv Steel Cog

Cov tswv yim them nyiaj los ntawm corrosion-resistant 600mm electrodes manifests nyob rau hauv ntau txoj kev nyob rau hauv lub khw hauv pem teb. Cov neeg ua hauj lwm hauv cub hluav taws tau soj ntsuam kev coj tus cwj pwm tsis tu ncua vim tias cov electrode tip geometry tseem zoo ib yam nyob rau lub sijhawm. Txo oxidation txhais tau hais tias tsawg dua cov khoom siv hluav taws xob uas tsis tau npaj tseg thaum lub sij hawm cua sov, uas txhais tau tias ua kom muaj zog ntau dua. Lub sijhawm ncua ntawm kev hloov hluav taws xob kuj tseem txo qis ntawm kev ua haujlwm thiab lub sijhawm crane tau mob siab rau kev tswj kab ke.

Los ntawm kev xav txog tus nqi, kev siv qeeb qeeb ua rau lub neej ua haujlwm ntawm txhua kab hluav taws xob. Txawm hais tias corrosion- cov qib tiv taus tuaj yeem nqa tus nqi qis qis, qhov txo qis hauv kev hloov pauv zaus thiab cuam tshuam nrog lub sijhawm poob qis feem ntau ua rau muaj txiaj ntsig kev lag luam hauv kev sib tw. Cov neeg tsim khoom siv hlau ua cov khoom siab - sulfur los yog siab - phosphorus seem tshwj xeeb tshaj yog muaj nuj nqis rau cov electrodes, vim tias cov tshuaj slag txhoj puab heev ua rau cov txheej txheem degradation.

Hu rau Zhen Ib International Co., Limited rau graphite electrode daws.

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