Kev sib txuas ntawm cov ntawv caij tsheb yuav tsum muaj cov hauv paus nkag thiab zoo rov qab tsim, yog li kev ua haujlwm nyuaj dua. Raws li qhov sib txawv spatial txoj hauj lwm, zaum lub raj-daim ntawv vuam tuaj yeem muab faib ua peb hom: ntsug tsau ca fillet vuam, ntsug ruaj khov lub kaum sab xis vuam thiab kab rov tav tsau fillet vuam.
Saib daim duab hauv qab no rau lub kaum sab xis ntawm lub vuam teeb, vuam hlau, thiab cov khoom ua haujlwm
Tack welding feem ntau welded los ntawm intermittent hlau filling txoj kev. Qhov ntev thiab tus naj npawb ntawm tack welds yog txiav txim siab raws li txoj kab uas hla ntawm cov yeeb nkab, feem ntau 2 mus rau 4 ntu, thiab txhua ntu yog 10 txog 20mm ntev. Thaum rov qab vuam, ua ntej ntaus lub arc ntawm lub tack weld, viav vias lub arc nyob rau hauv situ, thiab tos rau lub tack weld kom yaj los ua ib tug ruaj khov molten pas dej ua ke, ces sau cov hlau thiab weld mus rau sab laug kom paub meej tias lub nraub qaum yog zoo. tsim.
Thaum lub sij hawm vuam txheej txheem, lub pas dej molten yuav tsum tau pom nyob rau txhua lub sij hawm, thiab lub kaum sab xis ntawm lub vuam torch thiab hauv qab phaj yuav tsum tau kho kom zoo kom paub tseeb tias qhov luaj li cas ntawm lub molten qhov yog zoo ib yam thiab tiv thaiv kom txhob kub hnyiab. Thaum welding mus rau lwm cov tack welds, cov xaim pub mis yuav tsum tau nres lossis txo kom yaj cov tack welds thiab ua kom muaj kev hloov pauv nrog cov welds yav dhau los.
Thaum lub arc yog extinguished, nias lub hloov, tam sim no pib lwj, cov hlau noj yuav tsum nres tom qab lub arc crater puv, thiab cov molten pas dej ua ke solidifies tom qab lub arc yog extinguished. Nyob rau lub sijhawm no, lub vuam teeb thiab vuam hlau yuav tsum tau txuas ntxiv mus rau hauv qhov chaw, thiab lub vuam vuam yuav tsum tau muab tshem tawm tom qab cov khoom siv roj nres. Thaum txuas, ntaus lub arc ntawm ib txoj hauj lwm 10-15 hli tom qab lub arc crater, thiab txav lub arc mus rau qhov sib koom ntawm ib tug me ntsis ceev ceev; tom qab thawj arc crater melts los tsim ib lub pas dej molten, ces feem ntau sau cov hlau vuam. Yog hais tias muaj ib lub hauv paus bulge nyob rau hauv qab vuam hlaws, siv lub kaum sab xis grinder kom nws tiaj tus ua ntej ua daim npog welding.
Thaum lub sij hawm txhaws vuam los yog npog vuam, lub viav vias ntawm lub teeb yog me ntsis loj dua, yog li cov npoo ntawm cov yeeb nkab thiab cov phaj yog tag nrho melted, lub filling weld yuav tsum tsis txhob dav dhau los yog siab dhau, thiab qhov chaw yuav tsum tiaj tus.
Npog welding qee zaum yuav tsum muaj ob lub welds, thiab qhov qis dua yuav tsum tau welded ua ntej, ua raws los ntawm sab sauv. Thaum welding cov hlaws hauv qab no, lub arc swings nyob ib ncig ntawm ntug qis ntawm cov hlaws hauv qab, thiab sab sauv ntawm lub pas dej molten yog tswj ntawm 1/2 mus rau 2/3 ntawm lub hauv qab weld, thaum lub ntug qis ntawm lub pas dej molten yog. tswj ntawm txoj kab nqes 0 5-1.5 hli hauv qab ntug ntawm lub qhov ncauj. Thaum vuam cov hlaws sab saud, lub arc yuav tsum viav vias ib ncig ntawm ntug sab sauv ntawm cov hlaws hauv qab, kom lub ntug sab saud ntawm lub pas dej molten tshaj qhov ntug ntawm qhov zawj los ntawm 0.5-1.5mm, thiab sab ntug ntawm lub pas dej molten thiab cov hlaws qis hloov smoothly los xyuas kom meej tias cov weld seam Qhov saum npoo yog du thiab txawm.
Hu rau
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