Kev xaiv cov khoom siv vuam Austenitic A102 thiab J507 raug pom zoo rau kev vuam ntawm tib hom tsis tshua muaj ntiaj teb hnav cov hlau tsis tshua muaj hlau. Austenitic A102 thiab J507 raug pom zoo rau welding ntawm lub ntiaj teb tsis tshua muaj hnav resistant alloy steel thiab q235-ib hom hlau tsis sib xws.A102 vuam pas nrig hauv qab vuam txheej, seem ntawm vuam electrode J507 vuam pas nrig vuam, feem ntau xaiv 3.2 vuam pas nrig hauv qab. , qhov seem vuam electrode pom zoo kom xaiv 4.0 vuam pas nrig.Vuam electrode yuav tsum zoo ib yam ua ntej vuam, A102 vuam pas nrig thiab J507 vuam pas nrig ziab kub yog feem ntau txog 150 degree, los yog raws li cov kev cai ntawm cov electrode phau ntawv, xws li vuam welder yuav tsum khaws ib qho kev ncua deb ntawm lub incubator, nrog rau vuam, vuam pas nrig tsis tuaj yeem rov ziab dua.
Preheat ua ntej weldingRare ntiaj teb hnav-tiv thaiv alloy steel muaj ib tug loj nyiam ntawm hardening, thiab nws yog ib qho yooj yim los tsim hardened ntaub so ntswg thiab txias tawg nyob rau hauv vuam. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau preheat ua ntej welding, thiab lub preheating kub yog feem ntau tswj nyob rau hauv qhov ntau ntawm 200 ~ 250 degree .Lub preheating tshav kub qhov chaw txais oxyacetylene nplaim, thiab cov micro carbon nplaim yog siv thaum cua sov. Raws li lub thickness thiab txoj kab uas hla ntawm cov yeeb nkab phab ntsa, ib tug los yog ob peb welding nrug yuav siv tau los txav rov qab thiab tawm raws cov yeeb nkab kom sib npaug ntawm cov cua sov.Qhov dav cua sov yog nyob rau hauv thaj tsam ntawm 3 phab ntsa thickness ntawm ob sab ntawm lub zawj, feem ntau. nyob rau hauv qhov ntau ntawm 50 ~ 100mm, thiab qhov tsawg kawg nkaus yog tsis pub tsawg tshaj 50mm. Cov cua kub cua sov tuaj yeem ntsuas tau nrog lub ntsuas kub ntsuas ntsuas.
Lub tack weldingCov naj npawb ntawm cov vuam chaw feem ntau yog los ntawm 3 mus rau 6. Qhov ntev ntawm vuam qhov chaw yog 10 ~ 30mm, thiab qhov siab yog 2 ~ 4mm. Lub vuam specification rau qhov chaw vuam yog tib yam li ntawd rau formal welding.4. Tus naj npawb ntawm cov txheej weldingThe vuam txais yuav ntau txheej thiab ntau dhau welding.5. Interlayer kub Thaum lub sij hawm vuam, lub interlayer kub yuav tsum nruj me ntsis tswj nyob rau hauv qhov ntau ntawm 200 ~ 250 degree, thiab lub interlayer kub yuav tsum tsis txhob siab dhau.6. Tom qab vuam kev kho cua sov kom txo tau qhov txias txias tom qab vuam thiab tiv thaiv kom tsis txhob quenching thiab tawg, tom qab txias rau 250 ~ 300 degree tom qab vuam, tam sim ntawd qhwv cov welded sib koom nrog asbestos daim ntaub rau nws tus kheej-txias.7. Cov ntsiab lus tseem ceeb rau welding7.1 qhov chaw ua haujlwm ntawm qhov chaw vuam, los nag, qhov txheeb ze av noo ntau dua lossis sib npaug li 90%, vuam txwv tsis pub.7.2 welding tam sim no xaiv Welding tam sim no yuav tsum tau txo kom tsim nyog raws li cov pa vuam specification, thiab vuam ceev yuav tsum tsis txhob ceev heev. Nws feem ntau pom zoo kom tswj cov tam sim no ntawm A102 electrode thiab J507 electrode thaum vuam ntawm 90 ~ 150A, thiab tam sim no ntawm ntsug vuam thiab nyiaj siv ua haujlwm vuam yuav tsum raug txo qis.7.3 cov ntsiab lus ua haujlwm thaum thov vuam, yuav tsum yog ob tug neeg lub pob tw vuam, khaws cov ob lub pob qij txha nyob rau hauv ib txoj hauj lwm symmetrical, lub electrode yuav tsum tsis txhob viav vias, thiab siv luv luv arc vuam, nqaim vuam, ntau txheej vuam, feem ntau txhua txheej thickness yuav tsum sib npaug zos rau txoj kab uas hla electrode.Tom qab welding txhua seam ntawm txhua txheej, rauj ntaus nrog lub pneumatic shovel los yog rauj kom txo tau qhov vuam kev nyuaj siab.Thaum vuam, qhov kub ntawm cov khaubncaws sab nraud povtseg yuav tsum nruj me ntsis tswj. Tom qab vuam, txhawm rau txo qhov txias txias thiab tiv thaiv quenching thiab tawg, ntaub asbestos yuav tsum tau siv rau rwb thaiv tsev.
