MIG vuam, zoo ib yam li lwm cov txheej txheem, yuav siv sij hawm xyaum ua kom zoo dua koj cov kev txawj ntse.Rau cov tshiab dua rau nws, tsim qee qhov kev paub yooj yim tuaj yeem coj koj txoj haujlwm MIG vuam mus rau qib tom ntej.Los yog yog tias koj tau welding ib pliag, nws yeej tsis mob kom muaj lub zog tshiab.Xav txog cov lus nug nquag nug no, nrog rau lawv cov lus teb, raws li cov lus qhia vuam los coj koj.
1. Dab tsi tsav yob kuv yuav tsum siv, thiab kuv yuav teeb tsa qhov nro li cas?
Lub vuam hlau loj thiab hom txiav txim siab tsav yob kom tau txais kev sib tw, zoo ib yam hlau pub.Muaj peb txoj kev xaiv: V-knurled, U-groove thiab V-groove.
Pair roj-los yog tus kheej-shielded xov hlau nrog V-knurled tsav yob.Cov vuam hlau no yog mos vim lawv cov tubular tsim;cov hniav ntawm tus tsav yob lob cov hlau thiab thawb nws los ntawm lub feeder tsav.Siv U-groove tsav yob rau pub txhuas vuam hlau.Cov duab ntawm cov tsav rolls tiv thaiv marring ntawm no mos hlau.V-groove tsav rolls yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv hlau.
Txhawm rau teeb tsa tus tsav yob nro, thawj zaug tso cov tsav yob.Maj mam nce qhov nro thaum pub cov hlau rau hauv koj txhais tes.Txuas ntxiv mus kom txog thaum qhov nro yog ib nrab tig dhau los ntawm cov xaim slippage.Thaum lub sij hawm tus txheej txheem, cia rab phom kom ncaj li sai tau kom tsis txhob kinking lub cable, uas yuav ua rau cov hlau tsis zoo noj.
Ua raws li qee qhov kev coj ua zoo tshaj plaws uas cuam tshuam nrog cov hlau vuam, tsav cov yob thiab tiv thaiv cov roj tuaj yeem pab ua kom cov txiaj ntsig zoo hauv MIG vuam txheej txheem.
2. Kuv yuav ua li cas thiaj li tau txais txiaj ntsig zoo los ntawm kuv MIG vuam hlau?
MIG vuam hlau sib txawv nyob rau hauv lawv cov yam ntxwv thiab vuam tsis.Nco ntsoov xyuas cov xaim spec lossis cov ntaub ntawv los txiav txim seb qhov amperage, voltage thiab xaim pub nrawm npaum li cas cov khoom siv hlau tau pom zoo.Cov nplooj ntawv tshwj xeeb feem ntau xa nrog cov vuam hlau, lossis koj tuaj yeem rub tawm los ntawm cov chaw tsim khoom hlau lub vev xaib.Cov nplooj ntawv no tseem muab cov kev cai tiv thaiv roj, nrog rau kev sib cuag-rau-ua haujlwm nrug (CTWD) thiab vuam hlau txuas ntxiv lossis cov lus pom zoo tawm.
Stickout yog qhov tseem ceeb tshwj xeeb kom tau txais txiaj ntsig zoo.Ntev dhau ntawm ib daim nplaum tsim ib qho kev sib txuas ua kom txias dua, txo cov amperage thiab txo qhov sib koom ua ke.Ib tug luv luv stickout feem ntau muab ib tug ruaj khov arc thiab zoo dua-voltage nkag.Raws li txoj cai ntawm tus ntiv tes xoo, qhov ntev stickout zoo tshaj plaws yog qhov luv tshaj plaws pub rau daim ntawv thov.
Kev siv vuam hlau kom zoo thiab tuav tau yog qhov tseem ceeb rau MIG vuam tau zoo.Khaws cov spool nyob rau hauv qhov chaw qhuav, vim tias cov dej noo tuaj yeem ua rau cov hlau puas thiab muaj feem ua rau hydrogen-induced cracking.Siv hnab looj tes thaum tuav cov hlau los tiv thaiv nws ntawm cov dej noo los yog av ntawm koj txhais tes.Yog hais tias cov xaim nyob rau ntawm cov hlau feeder, tab sis tsis siv, npog lub spool los yog tshem tawm thiab muab tso rau hauv ib lub hnab yas huv.
3. Kuv yuav tsum siv qhov kev tiv tauj dab tsi?
Kev sib cuag ntawm qhov chaw so, los yog txoj hauj lwm ntawm kev sib cuag hauv lub MIG vuam nozzle, nyob ntawm qhov vuam hom, vuam hlau, daim ntawv thov thiab thaiv cov roj uas koj siv.Feem ntau, raws li qhov tam sim no nce, qhov kev sib cuag qhov chaw so yuav tsum tau nce ntxiv.Nov yog qee cov lus qhia.
Ib qho 1/8- lossis 1/4-inch recess ua haujlwm zoo rau kev vuam ntawm ntau dua 200 amps hauv cov tshuaj tsuag lossis cov mem tes siab tam sim no, thaum siv cov hlau-cored hlau thiab argon-nplua nuj shielding gases.Koj tuaj yeem siv cov hlau nplaum ntawm 1/2 txog 3/4 ntiv tes hauv cov xwm txheej no.
Khaws koj cov lus qhia tawm nrog lub nozzle thaum vuam tsawg dua 200 amps hauv luv luv lossis tam sim no mem tes hom.Kev pom zoo 1/4- rau 1/2-inch hlau stickout.Ntawm 1/4-nti lo tawm hauv luv luv, tshwj xeeb, tso cai rau koj los txuas rau cov ntaub ntawv thinner uas tsis tshua muaj kev pheej hmoo ntawm kev kub hnyiab los yog warping.
Thaum welding nyuaj-rau-mus cuag cov pob qij txha thiab tsawg dua 200 amps, koj tuaj yeem txuas qhov kev sib cuag 1/8 nti ntawm lub nozzle thiab siv 1/4-inch stickout.Qhov kev teeb tsa no tso cai rau ntau dua rau kev nkag mus rau cov pob qij txha nyuaj, thiab ua haujlwm zoo rau luv luv Circuit Court lossis qis-tam sim no mem tes hom.
Nco ntsoov, kev so kom zoo yog qhov tseem ceeb los txo lub sijhawm rau porosity, tsis txaus nkag mus thiab hlawv-los ntawm thiab txo qis spatter.
Qhov zoo tshaj plaws kev sib cuag tip recess txoj hauj lwm txawv raws li daim ntawv thov.Ib txoj cai dav dav: Raws li qhov tam sim no nce, qhov chaw so yuav tsum tau nce ntxiv.
4. Dab tsi shielding gas yog qhov zoo tshaj rau kuv MIG vuam hlau?
Lub shielding gas koj xaiv nyob ntawm cov hlau thiab daim ntawv thov.CO2 muab kev nkag tau zoo thaum vuam cov ntaub ntawv tuab, thiab koj tuaj yeem siv nws ntawm cov ntaub ntawv nyias vim tias nws nyiam ua kom txias dua, uas txo qhov kev pheej hmoo ntawm kev kub hnyiab.Rau kev nkag mus rau vuam ntau dua thiab ua tau zoo, siv 75 feem pua argon / 25 feem pua CO2 roj sib xyaw.Qhov kev sib xyaw ua ke no tseem ua rau qis dua li CO2 yog li muaj tsawg dua tom qab vuam huv.
Siv 100 feem pua CO2 shielding gas los yog 75 feem pua CO2 / 25 feem pua argon sib xyaw ua ke nrog cov pa roj carbon steel hlau.Aluminium vuam hlau yuav tsum tau argon shielding roj, thaum stainless hlau hlau ua hauj lwm zoo tshaj plaws nrog ib tug tri-mix ntawm helium, argon thiab CO2.Ib txwm siv cov xaim spec ntawv rau cov lus pom zoo.
5. Dab tsi yog txoj hauv kev zoo tshaj plaws los tswj kuv cov weld puddle?
Rau txhua txoj haujlwm, nws yog qhov zoo tshaj plaws kom cov vuam xaim xaim mus rau qhov ua ntej ntawm lub vuam welding.Yog tias koj welding tawm ntawm txoj hauj lwm (ntu, kab rov tav los yog nyiaj siv ua haujlwm), ua kom lub weld puddle me me muab kev tswj zoo tshaj plaws.Tsis tas li ntawd, siv lub me me txoj kab uas hla uas tseem yuav sau cov vuam sib txuas kom txaus.
Koj tuaj yeem ntsuas cov cua kub nkag thiab mus ncig ceev los ntawm cov hlaws weld tsim thiab kho raws li kom tau txais kev tswj hwm zoo dua thiab tau txais txiaj ntsig zoo dua.Piv txwv li, yog tias koj tsim cov hlaws hlaws uas siab dhau thiab tawv nqaij, nws qhia tau hais tias cov cua sov nkag tau qis dhau thiab / lossis koj qhov kev mus los sai dhau.Lub tiaj tus, dav hlaws qhia tias muaj cua sov nkag thiab / lossis qeeb dhau ntawm kev mus los.Kho koj cov kev txwv thiab cov txheej txheem kom ua tiav qhov zoo tshaj plaws weld, uas muaj cov yas me me uas tsuas yog kov cov hlau ncig nws.
Cov lus teb rau cov lus nug nquag nug tsuas yog kov ntawm ob peb qhov kev coj ua zoo tshaj plaws rau MIG vuam.Ib txwm ua raws li koj cov txheej txheem vuam kom tau txais txiaj ntsig zoo.Tsis tas li ntawd, ntau cov khoom siv vuam thiab cov xaim hluav taws xob muaj cov lej txhawb nqa los tiv tauj cov lus nug.Lawv tuaj yeem ua haujlwm zoo rau koj.
Post lub sij hawm: Jan-02-2023
