Hauv cov ntawv kawg, peb tau sib tham txog cov ua rau thiab tiv thaiv kev ntsuas ntawm stainless hlau welded yeeb yam. Niaj hnub no, peb khaws cov txheej txheem qhia tag nrho.
6. Kev Ua Phem
Lub sunken ib feem ntawm qhov kawg ntawm weld ntawm stainless hlau welded yeeb nkab yog hu ua arc crater. Lub arc crater tsis tsuas yog ua rau muaj zog muaj zog ntawm Weld muaj, tab sis kuj tseem ua rau arc crater tawg vim kev pom ntawm impurities.
Cov ua rau: lub ntsiab yog vim li cas lub sij hawm nyob rau ntawm arc extinguishing yog luv heev; Qhov tam sim no loj heev thaum vuam nyias daim hlau.
Kev tiv thaiv kev ntsuas: Thaum Electrode Arc Vuam yog kaw, thiab tom qab ntawd ua rau ib sab mus rau ib sab mus rau ib sab mus rau lub nkoj tom qab Molten pas dej puv nrog hlau; Thaum tungsten argon arc vuam, yuav tsum muaj sijhawm txaus yog attedenated yog attedenated yog attedenated thiab arc yog extinguished tom qab Weld puv nkaus.
7. Stomata
Thaum vuam huv stainless hlau welded kav dej, cov pa roj tsis tau khiav tawm thaum nws solidifies tsim los ntawm seem yog hu ua pores. Porosity yog ib qho kev sib tw vuam tsis xws luag, uas tuaj yeem faib ua kev sib tw sab hauv thiab sab nraud porosity hauv Weld. Stomata yog puag ncig, oval, kab-puab, rab koob-puab thiab ntom. Lub hav zoov ntawm pores yuav tsis tsuas yog cuam tshuam rau kev cog lus ntawm Weld, tab sis kuj txo thaj chaw zoo ntawm Weld thiab txo cov khoom siv hluav taws xob ntawm Weld.
Cov khoom: Muaj cov roj, xeb, noo noo thiab lwm cov av nyob rau saum npoo thiab zawj ntawm lub tais stainless hlau welded yeeb nkab; Cov txheej ntawm cov electrode yog noo thaum arc vuam thiab tsis tau qhuav ua ntej siv; Lub ARC ntev dhau los yog lub tshuab tiv thaiv ib nrab, Molten tiv thaiv cov txiaj ntsig zoo tsis zoo, cov huab cua ntxeem tau cov pas dej Molten; Lub vuam tam sim no siab dhau, lub electrode dhau los ua xim liab, txheej txheej poob tawm thaum ntxov, thiab cov txiaj ntsig tau ploj mus; Txoj kev ua haujlwm tsis raug, xws li ARC kaw yog qhov yooj yim heev, nws yog qhov yooj yim los tsim dense stima, thiab lwm yam.
Tiv thaiv kev ntsuas: ua ntej vuam, tshem tawm cov roj, xeb, xeb, thiab noo noo nyob rau hauv 20-30mm ntawm ob sab ntawm cov zawj; Ci nyob rau hauv nruj raws li qhov kub thiab sijhawm teev nyob rau hauv phau ntawv hluav taws xob; kom raug xaiv vuam cov txheej txheem tsis ua thiab ua haujlwm kom raug; Siv Arc luv luv ntau npaum li ntau tau vuam, kev tsim kho teb yuav tsum muaj cov chaw muaj cua; Cov ntawv siv hluav taws xob tsis raug cai tsis pub, xws li vuam tub muag khoom, pleev xim, tev, ntau dhau eccentricity, thiab lwm yam.
8. Kev suav nrog thiab hlais hlais
Suav nrog tsis yog xim hlau suav nrog thiab oxides uas tseem tshuav nyob hauv weld hlau ua los ntawm metallurgical cov tshuaj tiv thaiv. Slag suav nrog cov nyom slag uas tseem nyob hauv Weld. Stainless hlau Welded Yeeb Quav Cuam Tshuam Yuav muab faib ua ob hom: spet slag suav thiab sawb slag suav nrog. Lub Subag suav tsis muaj peev xwm ua tau zoo ntawm Weld, yog li txo cov khoom siv me txhua yam ntawm Weld. SLAG inclusions kuj tseem tuaj yeem ua rau muaj kev ntxhov siab meej, uas tuaj yeem yooj yim ua rau cov qauv welded thaum nws thauj khoom. Cov ua rau: tus interlayer sran tsis huv thaum lub sij hawm vuam; Lub vuam tam sim no tsawg heev; Lub vuam ceev nrawm heev; Kev ua haujlwm tsis raug rau thaum lub sijhawm vuam; Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov khoom siv vuam thiab cov hlau hauv paus tsis yog sib phim;
Kev tiv thaiv kev ntsuas: Xaiv cov hluav taws xob nrog kev tshem tawm slag slag; Ua tib zoo tshem tawm interlayer sag; tsim nyog xaiv vuam cov txheej txheem tsis zoo; kho cov tshuab nqus hluav taws xob thiab txoj kev thauj khoom.
Thaum xaiv ib Welded yeeb nkab ntau lawm kab , koj tuaj yeem xav txog kev txhim kho PLC system ntse. Hangao Tech (Seko Machinery) PlC System Tsis tuaj yeem saib cov ntaub ntawv ntau lawm, yog li tseem tsim cov ntaub ntawv ntau lawm, yog li ntawd cov txheej txheem ntau lawm tuaj yeem nkag mus rau cov ntaub ntawv khaws tseg txhua lub sijhawm.
9. Hlawv Los Ntawm
Thaum lub sij hawm vuam hlau, cov hlau molten ntws tawm ntawm sab nraum qab ntawm lub zawj, thiab tus cwj pwm zoo nkauj welded yeeb nkab yog hu ua hlawv-los. Hlawv-dhau los yog ib qho ntawm cov kev tsis xws luag hauv arc vuam.
Cov laj thawj: loj vuam tam sim no, qeeb vuam ceev, loj heev cua sov ntawm welded yeeb nkab; Loj groove gap, dhau lawm nyias nyias blunt ntug; Kev Txom Nyem Txom Nyem, thiab lwm yam.
Kev Tiv Thaiv Kev Ntsuas: Xaiv cov txheej txheem vuam tsim nyog thiab qhov zeem muag uas tsim nyog; Txhim kho cov welder txoj kev txawj ua haujlwm, thiab lwm yam.
10. Kab nrib pleb
Cov kab nrib pleb ntawm cov hlau cais welded rau hauv cov kab nrib pleb, kub tawg thiab rov qab tawg thiab sijhawm lawv tshwm sim; Lawv tuaj yeem faib ua cov kab nrib pleb ntev, kev sib tsoo weld yog qhov ua kom sov tawm, uas yuav tsis tsuas yog ua cov khoom scrapped, tab sis kuj yuav ua rau cov khoom sib kis.
(1) Kub tawg
Thaum lub sij hawm vuam cracks tsim los ntawm kev vuam sib txuas thiab cov hlau hauv qhov kub thiab txias ntau yam nyob ze ntawm cov kab sib tsoo yog hu ua cov kub tawg. Nws yog qhov kev puas tsuaj vuam tsis muaj kev puas tsuaj uas tsis pub muaj nyob. Raws li cov tshuab, qhov kub thiab txias thiab cov kab tawg ua kom tawg tuaj yeem faib ua cov kab nrib pleb
Caws: Lub ntsiab yog qhov qis melting point eutectic thiab impurranular nyob rau hauv moluranular nyob rau hauv molurranular lub sij hawm crystallization txheej txheem, thiab tib lub sijhawm nyob rau hauv kev txiav txim siab ntawm vuam kev ntxhov siab. Raws cov nplej sib txawv yog rub tawm sib nrug, ua cov kub tawg. Cov kab nrib kub feem ntau tshwm sim nyob rau hauv Austenitic Stainless hlau, Nickel Alloy thiab Aluminium Alloy. Cov hlau roj carbon cov roj av feem ntau tsis yooj yim los tsim cov kab tawg kub thaum lub ntsej muag cov ntsiab lus ntawm cov hlau nce, tab sis zoo ntawm kub tawg kuj nce ntxiv. Kev tiv thaiv kev ntsuas: nruj me ntsis tswj cov ntsiab lus ntawm cov kev phom sij xws li leej faj thiab phosphorus nyob rau hauv stainless hlau welded cov khoom siv welded, txo cov rhiab ntawm cov kab nrib pleb kub; kho cov tshuaj lom neeg muaj pes tsawg leeg ntawm Weld hlau, txhim kho cov qauv Weld, ua kom cov qoob loo, txhim kho lossis tawg cov qib ntawm cais; Siv cov ntaub ntawv vuam kom txo cov ntsiab lus ntawm impurities nyob rau hauv weld thiab txhim kho qib ntawm cais; Xaiv cov txheej txheem vuam tsim nyog, kev tsim nyog nce weld tsim cov txheej txheem thiab muaj ntau-txheej sib tw sib tw; Siv cov hmoov txhuas qub li lub hauv paus hlau, lossis maj mam tua lub arc, thiab sau rau arc crater kom tsis txhob thermal tawg ntawm arc crater.
(2) cov kab nrib pleb txias
Cov kab nrib pleb uas tsim tawm thaum welded sib koom ua ke yog txias rau qhov kub qis (rau cov hlau hauv qab M. Kub) yog hu ua cov kab nrib pleb. Cov kab nrib pleb txias tuaj yeem tshwm sim tam sim ntawd tom qab vuam, lossis nws yuav siv sijhawm ib ntus (teev, hnub lossis ntev dua) kom tshwm sim. Qhov kev tawg no tseem hu ua kev tawg. txaus ntshai heev.
Cov teeb meem: tus qauv hardened tsim los ntawm Martensite kev hloov pauv, cov kev sib tw hydrogen uas muaj ntau yam nyob hauv Weld yog peb qhov tseem ceeb uas ua rau cov kab nrib pleb.
Kev tiv thaiv kev ntsuas: Xaiv cov ntaub ntawv vuam uas tsawg-hydrogen-hydrogen-hydrogen-hydrogen-hydrogen, thiab ci lawv nyob rau hauv nruj ua ntej cov lus qhia ua ntej siv; Tshem cov roj thiab noo noo ntawm kev tso tawm ua ntej vuam, thiab txo cov ntsiab lus hydrogen hauv Weld; Xaiv cov txheej txheem vuam tsim nyog thiab cov lus qhia tshav kub kom txo qis kev ua kom tawv ntawm Weld Seam; Lub hydrogen kev kho mob yog nqa tawm tam sim ntawd tom qab vuam los ua hydrogen khiav tawm ntawm welded sib koom ua ke; Rau qhov stainless hlau welded yeeb nkab nrog lub siab tawv ua ntej vuam thiab cua sov hauv lub sijhawm tom qab kev sib koom ua ke thiab kev sib koom ua ke. Kev ua tau zoo; Txais yuav ntau yam kev ntsuas ntsuas kom txo qis kev siv vuam.
(3) Kev rov ua haujlwm tawg
Tom qab vuam, lub stainless hlau welded yeeb nkab yog reheated yeeb nkab kho kom muaj kub (kev nyuaj siab ua kom sov) thiab cov kab nrib cua sov) thiab cov kab nrib pleb yog hu ua kev xyaum ua kom rov qab.
Cov laj thawj: Kev rov kho cov kab nrib pleb feem ntau tshwm sim hauv cov hlau tsis muaj zog, cov chromatic tshav kub-resistant hlau, boron thiab lwm yam alloy. Tom qab ib lub voj voog bactal, lawv tau rhuab rau thaj chaw rhiab (550 ~ 650 ℃). Feem ntau ntawm cov kab nrib pleb pib hauv thaj tsam coarse-grained ntawm vuam qhov kub-cuam tshuam li cas-cuam tshuam. Feem ntau ntawm cov kev rov ua haujlwm rov qab tshwm sim hauv cov kav hlau stainless welded thiab kev nyuaj siab concentration tej zaum kuj tshwm sim hauv ntau txheej vuam.
Kev tiv thaiv kev ntsuas: Nyob rau hauv lub rooj sib tham ntawm kev tsim qauv yuav tsum tau qis dua li ntawm weld hlau, thiab kev ntxhov siab relaxes relaxes relaxes nyob rau hauv weld kom tsis txhob tawg nyob rau hauv lub tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-loj-cuam tshuam rau hauv tshav kub-loj-cuam tshuam rau hauv tshav kub-loj-cuam tshuam rau hauv tshav kub-loj-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-cuam tshuam rau hauv tshav kub-loj-cuam tshuam rau cov cua sov-cuam tshuam rau hauv tshav kub kub; txo cov vuam kev sib cav sib ceg thiab kev ntxhov siab; Tswj lub vuam tshav kub tawm tswv yim ntawm cov yeeb nkab welded, tsim nyog xaiv cov preheating thiab kub kho kub thiab kub kho kom ntau li ntau tau.
