Koj puas ntaus weld nce lossis nqis?

Pas vuam, tseem hu ua cov ntaub thaiv npog hlau arc vuam Ib nqe lus nug uas tshwm sim ntawm cov kab xev, tshwj xeeb tshaj yog cov tshiab rau cov khoom siv tes ua, yog: "Koj puas ntaus weld lossis qis dua?" Cov lus teb nyob ntawm ntau yam, suav nrog cov tuab tuab ntawm lub hauv paus hlau, hom sib koom ua ke, thiab cov xav tau weld zoo. Ob leeg mus rau sab hauv tsev vuam muaj lawv tus kheej, kev txwv, thiab nkag siab cov ntawv thov sib txawv, thiab nkag siab txog qhov tseem ceeb ntawm lawv xaiv txoj cai.
Downward Bag Vuam: Ceev thiab yooj yim
Downward Ble Vuam, raws li lub npe qhia, koom nrog kev tsiv hauv vuam electrode los ntawm sab saum toj mus rau hauv qab ntawm kev sib koom tes raws li koj weld. Cov txheej txheem no feem ntau hu ua "downhill" vuam thiab yog tus cwj pwm los ntawm kev taug kev nrawm dua thiab nrawm dua ncaj ncees.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev cia siab vuam vuam yog nws txoj kev ua tau zoo. Cov lus tsa suab cia tso cai rau cov welder kom npog thaj chaw tsawg, ua rau nws zoo tshaj plaws yog qhov tseem ceeb lossis tsis yog {{qhov tseem ceeb kho. Nws kuj yuav tsum muaj kev txawj tsawg dua rau tus tswv thaum pib, raws li lub ntuj ntws ntawm Molten Pas Dej hauv qab, txo qhov kev pheej hmoo ntawm lub pas dej ua ntej ntawm electrode.
Downward Vuam ua haujlwm zoo tshaj nrog cov ntaub ntawv nyias nyias (feem ntau 1/8 nti lossis tsawg dua hauv thickness). Thaum vuam nyias hlau, sai sai mus ncig ceev kev ceev pab tiv thaiv kom tsis txhob muaj kub yaj ntau dhau los ntawm cov hlau hauv paus. Lub zog nrawm dua tseem txwv cov kev tawm suab cua sov, txo cov teeb meem nyias muaj teeb meem uas tuaj yeem cuam tshuam cov qauv kev ncaj ncees ntawm Weld lossis cov duab ntawm cov weldpiece.
Txawm li cas los xij, qis dua lo vuam vuam muaj txwv. Vim tias lub pas dej weld txias dua sai dua rau kev mus nrawm dua, nkag mus rau hauv cov hlau feem ntau ntiav. Qhov no ua rau nws tsis zoo rau cov ntaub ntawv tuab lossis cov pob qij txha uas xav tau lub zog siab, xws li load - cov kabmob qauv. Ib qho ntxiv, cov lus tsa suab sai sai yuav ua rau muaj qhov nqaim nqaim hlaws, uas yuav tsis muab cov fust fuses raws cov npoo ntawm kev sib koom tes yog tias tsis ua kom zoo. Nws tseem ua tau zoo dua rau cov pob qij txha ntsug hauv cov pob qij txha tuab, raws li lub pas dej weld yuav sag lossis khiav ua ntej nws muaj zog lossis tsis muaj zog.
Upward Bib Vuam: Kev Nkag Mus Thiab Lub Zog
Upward lo vuam, lossis "Uphill" vuam "vuam, koom nrog kev tsiv ntawm electrode los hauv qab mus rau sab saum toj ntawm kev sib koom tes. Cov txheej txheem no ua ntej pib nkag mus thiab weld lub zog tshaj nrawm, ua rau nws xaiv qhov zoo tshaj plaws rau ntau daim ntawv thov.
Qhov tseem ceeb kom zoo dua ntawm upward vuam yog nws lub peev xwm ua kom tiav tob nkag rau hauv cov hlau. Los ntawm kev txav mus los, cov ntaub ntawv tuaj yeem tswj hwm lub pas dej weld ntau dua, pub rau cov hlau molten kom huv si nrog kev sib koom ua ke. Qhov tob tob yog qhov tseem ceeb rau cov khoom tuab (ntau dua 1/8 nti) thiab cov pob qij txha uas yuav tsum tau tiv thaiv cov khoom siv, kev lag luam, lossis cov hlab ntsha lag luam, lossis cov nkoj siv siab. Lub nkoj taug kev nrawm nrawm ntawm kev nce qib weld hlaws, uas tau faib cov kev ntxhov siab ntau dua txoj kev sib koom tes thiab txhim kho tag nrho lub zog.
Upward vuam kuj tseem zoo dua haum rau cov pob qij txha ntsug hauv cov hlau tuab. Upward cov lus tsa suab uas muaj kev sib tw weld los ntawm kev sib tsoo, muab cov ntaub ntawv muab ntau dua cov qauv hlaws. Qhov no ua rau muaj kev sib txawv weld nrog tsawg dua qhov tsis xws luag, xws li undercutting (ib qho zawj ntawm ntug ntawm Weld) lossis Porosity (me me uas tau los ntawm cov roj ntaiv).
Uas tau hais tias, upward bag vuam yuav tsum muaj kev txawj thiab kev xyaum ntau. Qhov nrawm nrawm nrawm txhais tau tias tus kws tuav hluav taws yuav tsum tswj hwm lub hauv pas dej ruaj khov, uas tuaj yeem ua rau muaj kev sib tsoo hauv cov khoom siv tuab lossis hlawv - los ntawm cov thinner. Nws tseem yog qeeb cov txheej txheem, uas tej zaum yuav tsis zoo tshaj plaws rau cov phiaj xwm qhov twg ceev yog qhov tseem ceeb.
Yam los txiav txim siab thaum xaiv los yog nqis
Txhawm rau txiav txim siab seb puas yuav weld weld lossis qis dua, xav txog cov hauv qab no yam:
• Cov ntaub ntawv tuab: Raws li cov kev cai dav dav, siv cov ntaub ntawv dav dav rau cov khoom siv nyias (1/8 nti lossis txo qis {{}}}} muaj feem cuam tshuam. Siv upward vuam rau cov khoom tuab kom ntseeg tau tob tob thiab lub zog.
• Hom thiab lub hom phiaj: rau tsis - kev txhim kho qhov chaw sai (piv txwv li cov ntaub ntawv nrawm nrawm), hauv qab vuam yuav txaus. Rau thauj khoom - Cov kabmob pob qij txha, pob qij txha, lossis cov pob qij txha ntsug hauv cov hlau tuab, nce vuam yog qhov tsim nyog los ua kom muaj kev cia siab.
• Welder txuj Kev Txawj Ntse: Downward Vuam yog kev zam txim ntau rau cov pib tshiab, raws li nws yuav tsum tau tswj hwm lub pas dej weld. Upward Vuam xav tau ntau precision kom tsis txhob muaj qhov tsis xws luag, ua rau nws zoo dua rau cov neeg muaj txiaj ntsig zoo.
• Cov hom electrode: qee cov hluav taws xob muaj hluav taws xob zoo dua rau ib qho kev taw qhia ntau dua li lwm tus. Piv txwv li, nrawm -}} Kuv feem ntau siv rau hauv nyias hlau, vim tias lawv tau ua rau cov pas dej weld rov qab los ntawm kev khiav. Cov hluav taws xob tsim rau kev nkag mus tob (xws li E7018) feem ntau yog siv nrog renward vuam hauv cov khoom siv tuab.
Cov lus qhia rau kev vam meej upward thiab qis dua lo vuam vuam
• Downward Vuam Cov Lus Qhia: tswj hwm tus neeg nyob ruaj khov, muaj mob tsheb ciav hlau kom tsis txhob muaj pas dej weld. Khaws cov hluav taws xob hluav taws xob (nyob ib ncig ntawm 10-15 degrees) taw qhia txog kev taug kev los pab tswj cov arc thiab tiv thaiv kev sib tw. Siv cov chaw amperage qis dua los txo cov tswv yim tshav kub, uas yog qhov tseem ceeb rau cov hlau nyias.
• Dua cov tswv yim vuam: txav maj mam thiab ruaj khov cia lub pas dej weld kom tob. Qaij lub electrode me ntsis upward (10-15 degrees) los pab txhawb nqa lub pas dej weld thiab tiv thaiv kev ua pas dej. Kho cov txiaj ntsig zoo kom phim cov khoom tuab - ntau dua amperage kuj yuav tsum muaj rau fusion, tab sis ceev faj ntawm kev kub ntxhov.
Tag
Hauv pas vuam, seb koj weld nce los yog nqis nyob ntawm cov khoom tuab, yuav tsum tau ua ke, thiab koj qib kev txawj. Downward Vuam yog sai dua, thiab zoo tagnrho rau cov khoom siv nyias nyias, thaum upward vuam, thiab kev tswj hwm zoo dua rau cov khoom tuab thiab txheej txheem txheej txheem. Los ntawm kev nkag siab txog qhov ua tau zoo thiab cov kev txwv ntawm txhua tus txheej txheem thiab txuam nrog cov kev xav tau ntawm koj qhov project, koj tuaj yeem ua tiav siab} zoo, txhim khu kev qha helds. Nrog kev xyaum, koj kuj yuav txhim kho lub peev xwm hloov ntawm ob txoj hauv kev raws li xav tau, yoog mus rau ntau qhov kev sib tw welding scarsios nrog kev ntseeg siab.