Graphite electrode flexural lub zog teeb tsa lub bending load ib kem RP tuaj yeem nqa ua ntej nws tawg, thiab nws yog ib kab ntawm daim ntawv pov thawj uas kwv yees kev tawg ntau dua li kev ua haujlwm. RP tsis muaj daim duab qhia qib-ib txwm rau nws, yog li tus nqi batch ntawm COA tsuas yog tus lej koj tuaj yeem tuav tus neeg muag khoom rau.
Qhov chaw thau khoom ntawm RP kem tiag los ntawm?
Peb qhov chaw, tsuas yog ib qho ntawm lawv pom tseeb. Qhov hnyav ntawm tus kheej yog thawj zaug: ib kem dai ntawm tus tuav nqa nws tus kheej qhov hnyav hauv qhov nro, thiab qhov nro nkag mus rau sab saum toj electrode. Rau ib kem 500 hli ntawm 1.56 g / cm³, RP feem ntau ntom ntom, txhua meter hnyav txog 306 kg, yog li kaum ob-meter kem nqa roughly 3.7 tonnes ntawm nws tus kheej graphite ua ntej cov txheej txheem thauj khoom tuaj txog.
Mechanical txav yog qhov thib ob thiab loj dua li feem ntau cov neeg yuav khoom xav tau. Kev them nyiaj seem tawm tsam ib kem, rub nws los ntawm lub nra, tapping thiab sway ntawm lub mast tag nrho siv lub zog rau sab, thiab lateral quab yuam ntawm lub ntsis ua ib lub sijhawm khoov ntawm tus tuav. Lub submerged-arc kem faus rau hauv ib lub nra yog thawb mus rau sab txhua zaus thaum tus nqi them, thiab cov electrode tuaj yeem zam qhov load tsuas yog khoov.
Thermal stress yog qhov thib peb. RP nqa qhov kev nthuav dav tshaj plaws ntawm peb qib, thiab ib kem rhuab ntawm ib lub ntsej muag ntau dua li lwm tus - ib txwm thaum lub cub tawg yog tapping los yog thaum ib theem khiav kub dua - txhim kho qhov sib txawv ntawm nws txoj kab uas hla. Qhov kev nthuav dav qhov sib txawv ntawd yog kev khoov cov khoom tsim tawm hauv cov khoom siv, thiab nws ntxiv rau cov khoom siv kho tshuab es tsis hloov nws.
Peb tsis tuaj txog nyias. Lawv superimpose, thiab kev sib xyaw ua ke yog dab tsi flexural zog specification bounds.
Dab tsi ua rau tawg thaum RP kem yog overloaded?
Graphite electrode breakage pib nyob rau hauv nro, tsis nyob rau hauv compression. Khoov ib kem thiab sab convex yog nyob rau hauv nro thaum lub concave sab yog nyob rau hauv compression, yog li cov tawg pib ntawm lub nro lub ntsej muag thiab propagates thoob plaws seem. Qhov ntawd tseem ceeb rau kev lees paub vim tias ib pawg tuaj yeem dhau txhua qhov kev sim hluav taws xob thiab tseem yog qhov tsis zoo hauv ib qho cuab yeej uas tswj xyuas seb lub kem tseem muaj sia nyob tus nqi phem.
Kev ua tsis tiav feem ntau pib ntawm qhov tshwj xeeb es tsis yog nruab nrab ntu. Peb qhov chaw mloog zoo rau kev ntxhov siab: cov xov hauv paus ntawm qhov sib koom ua ke, qhov kev hloov pauv qhov twg cov tuav tuav, thiab qhov chaw puas los ntawm kev tuav - ib tug chipped ntug, ib tug qhab nia sab phab ntsa, los yog lub qhov (socket) puas los ntawm ib tug poob electrode. Ib qho RP electrode yog tuav nyob rau hauv ib qho chaw plua plav nrog ib rab koob, thiab txhua qhov chaw sib cuag yog qhov chaw pib muaj peev xwm.
Qhov sib koom ua ke tsim nyog tau txais kev kho mob sib cais vim tias nws yog qhov chaw ntawm kem lub tensile load concentrates rau hauv ib qho me me hla ntu. Lub txiv mis nqa tag nrho dai qhov hnyav ntawm txhua yam hauv qab nws los ntawm kev sib txuas threaded, thiab txhua lub sijhawm khoov ntawm qhov siab ntawd hloov mus rau hauv kev ntxhov siab gradient hla cov xov. Ib kem uas feem hauv kev pabcuam feem ntau yog nyob rau ntawd.
Oxidation cuam tshuam nrog txhua qhov no. Ib sab phab ntsa uas tau thinned los ntawm oxidation muaj tsawg seem los tiv thaiv tib lub sijhawm, yog li qhov kev ntxhov siab ntawm qhov chaw nce siab thaum lub phiaj xwm khiav txawm tias lub load tsis hloov. Qhov ntawd yog lub tshuab uas ib sab uas muaj sia nyob nws thawj lub lis piam tom qab: lub zog tsis poob, ntu tau ua.
Ntau npaum li cas dabtsi yog khoov kev nyuaj siab puas ib tug muab tip load tsim?
Qhov no yog geometry, tsis yog khoom siv, thiab nws tuaj yeem suav ua ntej koj yuav. Khoov kev ntxhov siab nyob rau sab nrauv fiber ntau yog lub sijhawm muab faib los ntawm ntu modulus, thiab ntu modulus ntawm ib puag ncig kem nce nrog lub voos xwmfab ntawm txoj kab uas hla. Lub voos xwmfab ntawd yog vim li cas txoj kab uas hla hloov khoov tus cwj pwm nyob deb tshaj qhov kev sib tham tshwj xeeb feem ntau lees paub.
Lub rooj muab cov seem modulus rau plaub hom RP diameters, thiab cov kev ntxhov siab bending ua los ntawm ib kilonewton ntawm lateral quab yuam ntawm qhov kawg ntawm peb-meter dawb ntev.
| Nominal txoj kab uas hla | Tshooj lus modulus | Kev ntxhov siab ib kN ntawm 3 m dawb ntev | Kev ntxhov siab ib kN ntawm 2 m dawb ntev |
|---|---|---|---|
| 350mm | 4, 209 cm3 | 0.71 MPa | 0.48 MPa |
| 400mm | 6, 283 tzs | 0.48 MPa | 0.32 MPa |
| 500mm | 12, 272 cm³ | 0.24 MPa | 0.16 MPa |
| 600mm | 21, 206 cm³ | 0.14 MPa | 0.09 MPa |
Nyeem cov kab 350mm thiab 600mm ua ke. A600 hli graphite electrodemuaj kwv yees li tsib npaug ntawm seem modulus ntawm 350mm kem, yog li tib sab load tsim txog ib feem tsib ntawm kev ntxhov siab. Txoj kab uas hla yuav khoov muaj peev xwm pheej yig, thiab nws yog thawj kauj ruam muaj thaum lub cub tawg ua rau tawg electrodes ntawm ib tug paub load.
Dawb ntev yog qhov thib ob qib thiab pheej yig dua, vim nws tsis raug nqi dab tsi. Ib nrab ntawm qhov tsis raug ncua ntev los ntawm peb meters mus rau ob txiav qhov kev ntxhov siab los ntawm ib feem peb ntawm txhua txoj kab uas hla. Feem ntau qhov kev puas tsuaj rau ntawm graphite yog ib qho teeb meem ntawm kev tswj cov kab ke: ntau dhau ntawm electrode nthuav tawm saum lub nra, los yog ib txoj hauj lwm tuav tawm ntawm qhov ntev tsis txhawb nqa.
Lub rooj tsis tuaj yeem qhia koj ntau npaum li cas lateral quab yuam koj lub qhov cub siv, vim qhov ntawd nyob ntawm kev coj ua, lub nra hnyav thiab txoj kev tapping. Tus lej ntawd yuav tsum tau los ntawm koj tus kheej cov ntaub ntawv ua haujlwm, thiab nws yuav tsum teeb tsa txoj kab uas hla tsis yog lub rooj muaj peev xwm.
Lub zog flexural dab tsi yuav tsum yog tus neeg yuav khoom RP qhia?
Sau nws tawm tsam batch, tsis tiv thaiv daim ntawv qhia qib. RP tsis tau luam tawm qib-qhib flexural daim duab tib yam li nws muaj kev tiv thaiv zoo thiab qhov ntom ntom; tus nqi belongs rau COA rau cov khoom tshwj xeeb, thiab tus neeg muag khoom uas tsis tuaj yeem hais ib tus tau tso koj tseg yam tsis muaj tus lej tsuas yog qhov tseem ceeb.
Daim duab luam tawm feem ntau cov neeg yuav khoom siv raws li qhov taw qhia siv yog 250mm UHP specification ntawm lossis siab dua 11.0 MPa. Qhov ntawd yog UHP txwv, tsis yog RP txoj cai, thiab hais nws raws li qhov yuav tsum tau ua RP yuav yog pawg yuam kev. Qhov nws muab rau koj yog qhov ntsuas: lub zog flexural rau electrode graphite zaum hauv qis kaum ntawm megapascals, yog li kev ntxhov siab ntawm ob peb megapascals yog ib feem tseem ceeb ntawm cov paj thiab tsis yog qhov tsis tseem ceeb.
Ntawm RP lub luag hauj lwm qab nthab ntawm 17 A / cm², cov lus qhia muaj txiaj ntsig tau nyeem ib yam dab tsi zoo li: flexural zog kuaj ntawm cov qauv ntawm cov batch, kev npaj npe, tus nqi thiab tus lej batch qhia ntawm COA, thiab qhov kev lees paub txwv tau pom zoo sau ua ntej kev txiav txim. Cov kab lus ntawd siv tau. "Zoo mechanical zog" tsis yog.
Ib kab lus thib ob yog nyob ib sab ntawm nws, ntawm qhov sib koom ua ke: hom txiv mis tau hais rau daim duab, sib koom ua ke rau cov khoom siv hluav taws xob, thiab qhov sib koom ua ke tau teev tseg raws li kev sib dhos es tsis yog ob feem uas tshwm sim los txog hauv tib lub thawv. Agraphite electrode sib koom ua keuas yog dimensionally tseeb tab sis zaum tsis zoo li ib tug tsis muaj zog electrode, thiab tsis muaj zog lub cev compensates rau nws.
Dab tsi yuav tsum tau txais kev lees paub ntawm COA?
Tsib lub ntsiab lus, nyob rau hauv kev txiav txim, thiab tsis muaj leej twg yog tus nqi nruab nrab.
Ua ntej, hais tias tus nqi yog khi rau batch koj tau txais es tsis yog rau qib. Qhov thib ob, qhov kev ntsuam xyuas tau muaj npe, vim tias cov txiaj ntsig khoov yog nyob ntawm qhov chaw thauj khoom thiab ntawm qhov ncua sij hawm - ib daim duab uas tsis muaj cov ntsiab lus tsis tuaj yeem muab piv nrog koj qhov kev pom zoo txwv. Thib peb, hais tias cov qauv kev taw qhia yog qhia, vim hais tias extruded graphite yog anisotropic thiab ib tug longitudinal specimen tsis piav tib txoj kev coj ntawm lub zog raws li ib tug transverse ib.
Plaub, hais tias tus nqi tau tshaj tawm nrog kev sib kis, tsis yog ib tus lej. Ib pawg nruab nrab uas tsis muaj qhov qhia txog kev hloov pauv tsis qhia koj tsis muaj dab tsi txog qhov tsis muaj zog electrode hauv lub thawv, thiab qhov tsis muaj zog electrode yog qhov tawg. Thib tsib, qhov loj me no raug kuaj xyuas tib lub sijhawm, vim hais tias ib kab nkag hauv nominal txoj kab uas hla muaj qhov me me modulus tshaj qhov tsim tau xav, thiab qhov ntawd ntsiag to noj cov npoo ntawm tus nqi flexural yuav tsum muab.
Qhov kev tshwm sim yog tias lub zog flexural thiab txoj kab uas hla yog ib qho tshwj xeeb, tsis yog ob. Ib pawg uas ua tau raws li nws qhov kev txwv tsis pub dhau ntawm nominal txoj kab uas hla yuav tsis ua tau raws li qhov qis kawg ntawm qhov ntev ntawm qhov ntev, thiab tus neeg muag khoom uas tau tshaj tawm cov nqi siv tshuab tab sis tsis ntsuas txoj kab uas hla tau tshaj tawm ib nrab ntawm daim duab.
Qhov kev coj ua dab tsi ua kom cov kab hauv qab nws txwv?
Feem ntau ntawm cov khoom thauj khoom RP electrode tiag tiag pom yog tsim tom qab nws tawm hauv lub Hoobkas, thiab qhov pheej yig tshaj plaws los tiv thaiv cov npoo uas koj them rau yog kom tsis txhob ntxiv load rau nws.
- Nqa nrog ib lub hlua los yog ib lub clamp kom haum rau ntawm lub cev, tsis txhob ntawm lub txiv mis lossis lub qhov (socket), vim cov no yog cov seem uas muaj cov khoom siv tsawg tshaj plaws nyob ib ncig ntawm cov xov.
- Khaws kab rov tav ntawm lub txaj tiaj tus nrog kev txhawb nqa raws qhov ntev, tsis yog ntawm ob lub blocks nrog lub overhang uas cia nruab nrab sag hauv qab nws qhov hnyav.
- Khaws cov vaj tsev kom qhuav thiab cov electrodes npog, vim tias cov khoom ntub dej ntawm qhov sib koom ua ke txhawb oxidation ntawm cov xov thaum lub sij hawm thawj heats.
- Lub rooj zaum ntawm qhov sib koom ua ke rau lub zog tshwj xeeb, thiab rov kuaj xyuas nws tom qab thawj lub voj voog thermal es tsis xav tias nws nyob zaum.
- Txiav qhov ntev pub dawb: yog tias lub cub tawg muaj keeb kwm ntawm kev tawg ntawm ib qhov siab, cov lus teb feem ntau yog hloov kho dua li qhov muaj zog dua qib.
Kev xaiv qib tsis kho qhov teeb meem tswj kab ke. Kev txav los ntawm RP mus rau qib nruj dua rau kev khoov yog vim li cas ntxiv tus nqi thiab hloov cov thermal profile, thaum lub load uas ua rau qhov tawg tseem nyob qhov twg. Kho cov load yog pheej yig dua thiab nws ua haujlwm, thiab yog tias txoj kab uas hla nws tus kheej yuav tsum tau hloov, lubgraphite electrode khoom ntau yamkhiav ntawm 100mm mus rau 700mm yog li kev hloov pauv tuaj yeem ua rau hauv ib lub hnab ntawv tshwj xeeb.
Cov lus nug nquag
Lub zog flexural dab tsi yog RP graphite electrode muaj?
RP nqa tsis tau luam tawm qib-zoo flexural daim duab; tus nqi tau tshaj tawm rau ib pawg ntawm COA, kuaj ntawm cov qauv ntawm cov khoom ntawd. Nug tus nqi, qhov kev kuaj xyuas thiab tus lej batch ua ke. Cov luam tawm 11.0 MPa txwv ntawm lossis siab dua uas peb 250mm UHP specification tau sau yog UHP daim duab thiab yuav tsum tsis txhob nyeem raws li qhov yuav tsum tau ua RP.
Puas yog lub zog flexural lossis resistivity tseem ceeb dua rau RP?
Lawv teb cov lus nug txawv. Resistivity tswj qhov kub ntawm kem khiav thiab yog li ceev npaum li cas ntawm phab ntsa oxidises; Lub zog flexural tswj xyuas seb lub kem muaj sia nyob ntawm cov khoom siv hluav taws xob ntawm kev them nyiaj, lub zog txav thiab tapping. Lub RP lub qhov cub uas tawg electrodes xav tau cov cuab yeej cuab tam, thiab ib qho uas siv ceev heev xav tau hluav taws xob.
Puas yog ib txoj kab uas loj dua ib txwm txo kev tawg?
Nws txo qhov kev ntxhov siab ntawm kev khoov kom nrawm, vim hais tias seem modulus nce nrog lub voos xwmfab ntawm txoj kab uas hla, tab sis tsuas yog yog tias tus so ntawm kem tswj tau. Ib kem loj nrog qhov ntev tsis txhawb nqa nyob rau hauv tus tuav tseem concentrates kev ntxhov siab ntawm tib lub ntsiab lus. Txoj kab uas hla thiab qhov ntev dawb yuav tsum tau txiav txim siab ua ke tiv thaiv qhov tseeb sab load lub qhov cub siv.
Kuv puas tuaj yeem lees txais tus nqi flexural yam tsis paub txog qhov kev xeem?
Tsis yog, vim tus lej tsis tuaj yeem nqa tsis tau nws. Bending cov txiaj ntsig nyob ntawm qhov ncua sij hawm thiab chaw thau khoom, thiab tus nqi hais tsis muaj cov ntsiab lus tsis tuaj yeem muab piv rau qhov txwv koj pom zoo. Nug qhov kev npaj kom muaj npe nyob rau hauv daim ntawv pov thawj, thiab kho cov duab liab qab raws li cov ntaub ntawv tsis tiav es tsis yog ib qho qis.
Ntsiab Cai
- Ib kem RP nqa tus kheej qhov hnyav, sab nraub qaum los ntawm kev them nqi thiab lub nra hnyav, thiab thermal bending los ntawm kev nthuav dav sib txawv, tag nrho ib zaug.
- Graphite tsis nyob rau hauv nro, yog li qhov tawg pib ntawm lub ntsej muag convex, thiab qhov sib koom ua ke yog qhov uas tensile load concentrates rau hauv qhov tsawg tshaj plaws.
- Seem modulus nce nrog lub voos xwmfab ntawm txoj kab uas hla: ib kem 600mm yuav siv li ntawm ib feem tsib ntawm qhov khoov kev nyuaj siab ib kem 350mm yuav siv sij hawm tib lub ntsis load.
- Flexural zog rau RP yog ib daim duab batch ntawm COA, tsis yog daim ntawv qhia qib, thiab nws yuav tsum tau teev nrog cov kev ntsuam xyuas thiab ntsuas txoj kab uas hla.
Teem Koj Txoj Cai Khoov Ua Ntej Ua Ntej Kev Txiav Txim Tom ntej
Xa txoj kab uas hla, qib, qhov ntev pub dawb nyob rau hauv koj lub hnab ntim khoom thiab sab load koj lub qhov cub tso rau hauv kem, thiab peb yuav paub meej tias qhov tshwj xeeb nqa nws. Yog tias kev tawg muaj keeb kwm, suav nrog qhov siab uas nws tshwm sim thiab cov txiaj ntsig batch los ntawm kev xa khoom kawg, thiab kev tshuaj xyuas pib los ntawm cov ntaub ntawv ntawd es tsis yog los ntawm kev pom zoo qib.
WhatsApp: +86 155 1882 4805 · Email: inquiry@zaferroalloy.com· lossis xa daim foos rau ntawm pebhu rau nplooj ntawv
Txoj kab uas hla:
Qib (RP/HP/UHP):
Ntev (mm):
Hom txiv mis (T3 / T4 / T5 / T6):
Dawb ntev hauv qab tuav (mm):
Kev tawg qhov siab, yog tias muaj (mm):
Lub hli ntau (t):
Qhov chaw nres nkoj:
Flexural zog los ntawm koj lub xeem COA (yeem):
Kev Nyeem Ntawv
- Yuav Ua Li Cas Cov Neeg Yuav Ntsuas Graphite Electrode Flexural Strength Rau Kev Thov Cov Cuab Yeej Cuab Yeej?- Teem tawm yuav ua li cas nyeem cov txiaj ntsig kev ntsuas khoov tawm tsam qhov kev thauj khoom koj lub qhov cub siv tau tiag tiag.
- Yuav Ua Li Cas Pab Pawg Muag Khoom Tshawb Xyuas Thaum Graphite Electrode Dimensions txawv ntawm Kev Yuav Khoom?- Npog cov ntawv xaj xaj xaj uas ua raws ib zaug kab thiab lub zog tau teev tseg.
- Yuav Ua Li Cas Steel Mills Ntsuam Xyuas Graphite Electrode Hluav Taws Xob Resistivity Ua ntej EAF Kev Muag Khoom?- Piav qhia txog kev kuaj hluav taws xob los ua ke nrog cov neeg kho tshuab thaum ntsuas tus neeg xa khoom.