Submerged Arc Vuam (pom) yog qhov pom dav hauv kev lag luam tsim rau nws cov kev ua haujlwm siab thiab ruaj khov vuam zoo. Kub, raws li ib tug tub ntxhais parameter hauv cov txheej txheem no, sau los ntawm tag nrho cov txheej txheem vuam thiab cuam tshuam rau kev tsim ntawm cov khoom siv tshuaj ntsuab, thiab kev ua tau zoo kawg nkaus. Yog li, dab tsi yog qhov tshwj xeeb kub ntau ntawm submerged arc vuam? Thiab cov xwm txheej yuav cuam tshuam dab tsi?
Key Cov kub nyob rau hauv submerged arc vuam
Arc cheeb tsam kub
Lub Arc cheeb tsam yog qhov chaw tseem ceeb uas tsim hluav taws xob muaj zog nyob rau hauv submerged arc vuam. Qhov kub ntawm no tsis tshua muaj siab, feem ntau mus txog 10,000-15,000 degree. Xws li cov kub siab yog txaus kom tau qhuav rau kom yaj lub hlau vuam hlau thiab cov npoo ntawm lub hauv paus pib, tsim lub pas dej molten. Lub arc kub yog tsuas yog tswj hwm los ntawm hluav taws xob lub zog. Nyob rau hauv ib txwm vuam cov xwm txheej, cov arc kem, raws li qhov kub tshaj plaws ntawm lub anode thiab cathode nyob ze me me tab sis tseem muaj qhov melting potals.
Molten pas ntsuas kub
Lub pas dej hauv Molten yog tsim los ntawm kev melting ntawm lub hauv paus hlau thiab vuam hlau nyob rau hauv kev txiav txim ntawm arc. Nws qhov kub yog qis dua li thaj chaw arc tab sis tseem nyob qis qis ntawm qib siab, feem ntau nyob rau hauv ntau ntawm 1,500-2500 degree. Cov kev kub tshwj xeeb yog ntsig txog yam xws li hom ntawm lub hauv paus hlau, vuam tam sim no, thiab vuam ceev. Piv txwv li, thaum vuam carbon hlau, lub pas dej molten kub feem ntau feem ntau nyob ib ncig ntawm 1,500-1500 degree; Thaum vuam siab - cov phaj hlau los yog tuab, vim tias qhov kev kub ntxhov ntau dua, qhov chaw molten kub yuav nce mus rau 2,000-2,500 degree. Qhov ntsuas kub ntawm Molten pas dej ncaj qha cuam tshuam cov fluidity ntawm molten hlau thiab cov hlau me ntawm cov nyhuv. Qhov ntsuas kub haum tuaj yeem paub meej tias cov molten hlau tag nrho wets lub hauv paus hlau thiab txo cov khoom tsis xws luag xws li pores thiab tsis tiav fusion.
Tshuav tas li
Nyob rau hauv submered arc vuam, flux melts los tsim shag, uas npog rau saum npoo ntawm molcen dej los tiv thaiv nws los ntawm atmospheric pollation. Lub shrag kub yog ze rau cov pas dej uas yog qhov kub thiab txias, kwv yees li 1,400-2,200 degree. Qhov kev sib tshuam tsis yog tsuas yog lub luag haujlwm tiv thaiv tab sis tseem cuam tshuam rau cov pas dej txias ntawm Molten pas dej los ntawm nws tus kheej ceev ceev. Piv txwv li, sintered fluxes nrog siab viscosity feem ntau muaj cov cua txias dua, thaum qee qhov ua npau taws nrog cov viscosity qis dua.
Yam cuam tshuam cuam tshuam rau hauv submerged arc vuam kub
Vuam tam sim no
Vuam tam sim no yog qhov tseem ceeb tshaj plaws cuam tshuam rau kev siv ntsuas kub. Nyob rau hauv cov xwm txheej ntawm lwm yam kev ntsuas yog tsau, ntau dua cov vuam tam sim no, ntau dua cov lus tawm tshiab, thiab ntau dua cov pas dej kub arc thiab moltening kub. Piv txwv li, thaum lub sijhawm nce ntxiv txij li 500 mus rau 1,000a, lub arc kub tuaj yeem sawv ntawm 2,000-3,000 tus pas ntsuas dej tau nce los ntawm 300-500℃raws li. Yog li ntawd, nyob rau hauv tiag tiag vuam, rau cov phaj tuab uas yuav tsum muaj cua sov ntau rau yaj, ib qho loj dua tam sim no yog feem ntau xaiv; Rau cov phaj nyias, ib qho me me tam sim no yog siv kom tsis txhob muaj melting ntau dhau los lossis hlawv {{}} los ntawm.
Vuam Voltage
Vuam vuam feem ntau cuam tshuam rau qhov ntev ntawm arc. Lub zog ntau dua yuav ua rau lub nkoj ntev dua, thiab kev faib tawm thaum tshav kub kub hauv lub arc cheeb tsam yuav kis tau ntau dua. Txawm hais tias qhov kub tshaj plaws ntawm ARC yuav tsis nce ntxiv, cov hlau cua sov zoo tshaj, uas tseem tuaj yeem ua rau tag nrho lub pas dej ntawm Molten dej sawv. Piv txwv li, thaum lub voltage nce los ntawm 30v rau 40v, lub nkoj ntev nce ntxiv, thiab qhov kub ntawm lub pas dej Molten ntau yuav nce los ntawm 100-200 degree.
Vuam ceev
Welding ceev txiav txim siab lub sijhawm uas Arc ua ntawm ib cheeb tsam ntawm lub hauv paus hlau. Lub viav vias txuas ntxiv txhais tau tias yog cov hlau hauv paus thiab vuam hlau yog rhaub kom ntev dua, thiab qhov kub ntawm Molten pas yuav siab dua; Hloov siab, kev siv vuam ceev nrawm yuav ua rau lub sijhawm cua sov tsis txaus, thiab lub pas dej molten rau qhov kub yuav txo. Siv cov kauv yeeb nkab muab pov tseg raws li ib qho piv txwv, thaum lub teb welding yog nce ntawm 30m / h, lub pas dej kub molten kub yuav txo tau los ntawm 200-300 degree. Yog li ntawd, siab {- ceev vuam feem ntau yuav tsum tau sib phim nrog cov kev them nyiaj ntau dua rau cov cua sov los ntawm kev nrawm nrawm.
Flux Khoom
Lub thermal conductivity thiab melting point ntawm flux yuav cuam tshuam rau cov cua sov hloov thiab rov ua haujlwm hauv thaj chaw vuam. Fluxes nrog tsawg thermal conductivity thiab siab yaj cov ntsiab lus (xws li qee tus pas dej kub, ua rau lub pas dej Molten kom muaj lub sijhawm ntev ntev; Fluxes nrog siab thermal conductivity (xws li qee qhov fused fluxes) yuav nrawm kub dissipation, uas ua rau tus pas dej qis dua. Piv txwv li, thaum siv SJ101 Suastered Flux thiab HJ431 Feded Flux nyob rau hauv tib lub sijhawm tam sim no thiab ntsuas thiab kub siab dua li 100-200 Qib siab dua li thaum siv HJ431.
Puag hlau thiab Vuam Hlau Thickness
Thicker lub hauv paus cov hlau los yog vuam hlau yuav tsum muaj kub ua kom kub kom yaj, tshwj xeeb yog qhov ntsuas kub) yuav tsum tau siab dua. Piv txwv li, thaum vuam 20 hli tuab carbon hlau phaj yog feem ntau yog 200-300℃siab dua thaum muaj 10 hli tuab tuab hauv tib cov txheej txheem tsis sib xws.
Qhov tseem ceeb ntawm kev tswj qhov kub ntawm submerged arc vuam
Ua kom pom kev weld tsim
Lub pas dej uas haum rau Molten qhov kub tau tuaj yeem paub tseeb tias cov hlau molten tau zoo fluidity, ua rau nws tag nrho weld groove thiab ua ib qho du thiab niaj hnub weld hlaws dai. Yog tias qhov ntsuas kub tsawg dhau, cov hlau tsis muaj tsawg dhau, yuav tsis ntws txaus, ua rau tsis txaus ntseeg, ua tsis tiav xws li fusion fusion thiab undercut; Yog tias qhov ntsuas kub siab dhau lawm, cov hlau molten kuj sag, uas yog lub ntsej muag weld lossis txawm tias hlawv (tshwj xeeb tshaj yog rau cov phiaj nyias nyias).
Lav tau weld coundenurgical ua tau
Qhov ntsuas kub ntawm Molten pas dej thiab nws tus nqi txias ncaj qha cuam tshuam rau kev sib txawv ntawm weld, xws li nag lossis daus ntawm kev suav, thiab tsim ntawm microstructure. Piv txwv li, hauv vuam ntawm tsawg -} ecoy siab heev, kev loj hlob ntawm Molten kuj yuav tshwm sim, ua kom muaj kev loj hlob ntawm Weld; Yog hais tias qhov ntsuas kub tsawg dhau, cov khoom siv tsis tau, cuam tshuam rau lub zog ntawm Weld. Los ntawm kev tswj qhov kub thiab txias, microstructure ntawm weld hlau tuaj yeem ua tau zoo, xws li ua kom muaj zog thiab tawv.
Tiv thaiv cov vuam tsis xws luag
High - kub tswj tau tuaj yeem txo cov cim ntawm cov hws pores. Lub pas dej siab dua Molten ntsuas kub yog pab kom khiav tawm ntawm cov roj (xws li hydrogen thiab nitrogen) hauv cov hlau molten; Yog tias qhov ntsuas kub tsawg dhau, cov pa roj tsis tuaj yeem khiav tawm hauv lub sijhawm thiab yuav ua qhov hws hauv Weld. Ib qho ntxiv, rau cov ntaub ntawv rhiab rau cov khaub thuas txias (xws li high}} {{{{{{{{{{{{{{{{{{{{} {} {} {} {} {} {} {} {} {} {} {} Kev muaj kev ntxhov siab thiab kev pheej hmoo ntawm kev tawg txias.
Adapting mus rau cov vuam sib txawv
Qhov sib txawv vuam scararios muaj cov kev yuav ua kom sov. Piv txwv li, hauv vuam ntawm tuab - walled walled nkoj, ntau dua cov chav dej molten Nyob rau hauv lub vuam ntawm thin -} pa cov kav dej, qhov ntsuas kub yog xav tau kom tsis txhob muaj kev cuam tshuam thiab hlawv- los ntawm.
Cov kws tshaj lij kev lag luam qhia tias nyob rau hauv kev tsim khoom arc Los ntawm mastering txoj cai ntawm qhov kub hloov thiab nws cov cawv, ruaj khov thiab siab}} Cov khoom lag luam zoo rau kev nyab xeeb thiab kev ntseeg tau ntawm cov khoom lag luam.
