Qhov ceev ntawm uas koj weld -} Txawm hais tias nrawm nrawm, suav nrog kev nkag mus, hlaws duab, thiab tsim cov kev sib txawv. Tsis muaj cov lus teb ntxiv rau seb puas yuav siv nrawm nrawm lossis qeeb; Cov ceev ceev nyob ntawm ib qho ntawm ntau yam, xws li cov ntaub ntawv tuab, vuam txoj kev, thiab sib koom tes tsim. Kev nkag siab tias kev nrawm npaum li cas cuam tshuam rau kev siv Weld thiab sib piv nws rau cov kev mob tshwj xeeb yog qhov tseem ceeb kom ua tiav cov txiaj ntsig tau.
1. Qhov cuam tshuam ntawm vuam ceev ntawm weld zoo
Vuam kev nrawm rau tus nqi ntawm lub electrode lossis teeb tau txav raws kev sib koom ua ke, feem ntau ntsuas hauv nti ib feeb (IPM) lossis millimeters ib feeb (hli / min). Cov kab nrawm no txiav txim siab ntau npaum li cas cua sov rau hauv paus hlau thiab reld pas, uas nyeg cuam tshuam rau:
Cov tswv yim tshav kub: qeeb qeeb txhais tau tias ntau dua kub yog thov rau kev sib koom tes, nce kev nkag mus thiab qhov loj me ntawm chav weld pas dej. Kev nrawm nrawm daws cov lus tawm thaum tshav kub, txwv kev nkag mus thiab ua kom lub pas dej weld me me.
Cov duab hlaws: qeeb vuam feem ntau ua rau dav dav, tawg roj nrog tob nkag, thaum lub sij hawm nrawm dua, siab dua caj dab nrog qhov nkag siab.
Tsis kam lees qhov kev pheej hmoo: qeeb dhau, thiab koj tuaj yeem pom hlawv -}}} ntawm (ntawm cov khoom siv nyias), warping, lossis ntau dhau lawm. Sai sai, thiab koj yuav tsis tiav fusion, tsis muaj kev nkag mus, lossis "txias" weld nrog lub zog tsis muaj zog.
2. Thaum twg Weld qeeb: ua ntej ua ntej nkag mus thiab fusion
Qeeb vuam yog qhov tsim nyog hauv cov xwm txheej uas sib sib zog nqus thiab ua tiav fusion yog qhov tseem ceeb. Qhov kev nrawm no tso cai kom txaus kub kom yaj lub hauv paus hlau thiab muab tub lim, ua kom muaj kev thaiv kev weld muaj kev ruaj ntseg nrog kev sib koom tes.
2.1 tuab cov ntaub ntawv
Rau cov cuab yeej siv hlau ua kom tuab dua ¼ nti (6 hli), qeeb vuam yog qhov tseem ceeb. Cov ntaub ntawv tuab ua cov cua sov, nqus tshav kub sai {2} Taug kev nrawm yuav tawm tsis txaus lub sijhawm rau kev nkag mus rau kev nkag mus rau hauv weld. Piv txwv li:
Vuam ib ½ ½ ½ Ã - nti (12mm) steel phaj uas muaj cov ntaub ntawv qeeb,
Nyob rau hauv multi -}}} dhau vuam (kev ua ke sib luag ntawm cov txheej txheem sib xyaw ua ke, zam qhov tsis muaj mob khaub hlab qhov twg tsis sib haum).
2.2 high - lub zog lossis cov pob qij txha tseem ceeb
Cov pob qij txha uas ris lub nra hnyav, xws li cov hauv cov txheej txheem lossis tshuab, thov kom qeeb vuam. Qhov tob tob nkag los ntawm qeeb qeeb ua kom tau lub weld tuaj yeem faib cov kev ntxhov siab ncaj ncees hla kev sib koom ua ke. Piv txwv li:
Vuam lub ntsej muag hlau uas txhawb nqa lub nra yuav tsum tau ua kom qeeb ua kom tiav cov kev nkag mus ntxiv, tiv thaiv kev sib tw los ntawm kev tawg ntawm Weld ntawm kev nyuaj siab.
Cov khoom siab siab (txawm tias 6013 tsis yog siv ntawm no; 7018 yog ntau) vam meej rau qeeb, tswj kev sib tw ua tsis tiav, uas tuaj yeem ua rau xau.
2.3 ntsug los yog nyiaj ntau tshaj txoj haujlwm
Lub ntiajteb txawj nqus ua haujlwm tawm tsam Weld pas dej nyob rau hauv ntsug (li) los yog overhead vuam, ua kom qeeb ceev ceev tsim nyog los tswj. Lub sijhawm qeeb qeeb tso cai rau cov hlau molten kom muaj txiaj ntsig txaus los tiv thaiv sagging lossis dripping, thaum tseem fusing nrog lub hauv paus hlau. Piv txwv li:
Ntsug tau vuam vuam ntawm ib kem hlau yuav tsum tau txav qeeb kom tso lub tshuab txiav hluav taws xob weld, kom ua kom muaj cov khaub ncaws hnav zoo nkauj tsis muaj qhov khoob.
Nyiaj Siv Siv Welding (piv txwv li, kho cov nqaj qab nthab) siv qeeb ceev kom tiv thaiv cov hlau poob los ntawm kev poob, ua kom lub pas dej tsom rau kev sib koom ua ke.
3. Thaum mus Weld ceev: tiv thaiv kev kub ntxhov thiab tsis xws luag
Ceev ceev vuam yog qhov nyiam thaum tsis tshua muaj cua sov ua kom sov yog qhov tseem ceeb, xws li ntawm cov ntaub ntawv nyias nyias lossis thaum tsis txhob ua warping. Nws txwv cov cua kub tsim, txo qhov kev pheej hmoo ntawm kev puas tsuaj rau lub hauv paus hlau.
3.1 Cov Khoom Siv Nyias
Rau cov hlau me me tshaj li 16 lub npe (1.6 hli), vuam muag nrawm yog qhov yuav tsum tau ua. Cov ntaub ntawv nyias nyias muaj qhov muaj peev xwm tsawg {}}}}} kev siv hluav taws kub ntau dhau los ntawm qeeb vuam Piv txwv li:
VUAM 18-koob tshuaj (1.2mm) daim ntawv hlau rau lub tsheb fender nrog 6013
Kho ib qho nyias nyias cov yeeb nkab (tsis {- qhov siab) siv nrawm nrawm mus sib txuas ntawm cov hlau ib puag ncig los ntawm overheating ceev.
3.2 cua sov -} rhiab cov ntaub ntawv
Qee cov hlau, xws li qis}}} cov steel steel nquag mus ntaus nkauj lossis cov alloys uas nyuaj heev los ntawm vuam ceev. Piv txwv li:
Vuam nyias cov ntawv me me hlau rau lub txee hlau: kev txo cov lus qhia nrawm nrawm, tiv thaiv cov ntawv txheeb los ntawm khoov lossis sib ntswg thaum lawv txias.
Ua haujlwm nrog cov hlau galvanized (tab sis yuav tsum tau ua kom muaj kuab lom): nrawm vuam minimizing lub sijhawm zinc me ntsis yog nthuav tawm cov cua sov, txo cov lus paj nruag tso tawm thiab txheej.
3.3 thaj chaw loj lossis cov pob qij txha ntev
Thaum vuam ntev, ncaj qha pob qij txha (piv txwv li, ib 10 - beoo} nrawm tiv thaiv tshav kub tsis xwm yeem tsis xwm yeem. Qeeb Vuam vuam nyob rau hauv cov xwm txheej zoo li no tuaj yeem ua rau cov hlau los nthuav dav thiab sib cog lus tsis sib xws, ua rau kev ua rog. Ib qho ruaj khov, nruab nrab -
4. Qhov xwm txheej uas txiav txim siab "txoj cai" ceev
4.1 electrode hom
Cov qauv vuam sib txawv muaj ntau yam ceev ceev raws li lawv cov txheej thiab tsim:
6013 Qws: Ua haujlwm zoo tshaj plaws ntawm kev ntsuas nrawm. Nws cov rutile coating ruaj khov arc, tab sis qeeb thiab nws yuav tsim ntau dhau ntawm Sawv; Sai sai thiab nws pheej hmoo tsis tiav fusion.
6011 pas nrig: Tolerates sai dua sai dua vim nws cov txheej txheem cellulose, uas hlawv tawm sai sai, tab sis tseem yuav tsum tau hloov kho rau cov khoom tuab.
7018 Qws: Yuav tsum qeeb qeeb kom ntseeg tau qhov qis- hydrogen txheej los ntawm hydrogen - inducts nrib pleb.
4.2 Tam sim no thiab cov chaw voltage
Vuam ceev yuav tsum kho nrog tam sim no (amperage) thiab voltage. Siab dua tshiab tsim ntau dua cov cua sov, xav tau sai sai ceev kom tsis txhob muaj kev kub siab; Cov tam sim no xav tau qeeb qeeb nrawm los xyuas kom muaj kev nkag txaus. Piv txwv li:
Ib tug 6013 pas dej siv nrog 90 {- 120 amps (rau} Cov hlau diam) ntawm} Cov ntiv nplhaib hlau kom zoo rau kev siv cua sov kom siv cov cua sov kom siv tau cov cua sov.
Tib tus pas nrog 70 - 90 amps ntawm 16-chav ntsuas kev xav kom tiv thaiv kom nrawm dua los tiv thaiv kev hlawv.
4.3 sib koom tes tsim
Taub pob pob qij txha: tighter, ntau meej ceev kev tswj tau xav tau. Qeeb ceev rau tuab pob tw pob qij txha ua kom tiav tag nrho cov kev nkag; Ceev ceev nrawm rau cov nyias nyias tsis txhob hlawv - los ntawm.
Fille cov pob qij txha (piv txwv li, kaum velds): Kev ntsuas nrawm nrawm hauv ob txhais ceg ntawm cov sib koom ua ke. Kev qeeb thiab lub weld tuaj yeem txeej; Sai sai thiab ib txhais ceg kuj yuav tsis muaj fusion.
Ntxhuav pob qij txha: Ceev ceev tiv thaiv tshav kub tsim kho thaum cov npoo sib tshooj, txo qhov kev pheej hmoo ntawm cov ntawv saum toj kawg nkaus.
5. Cov lus qhia ua tswv yim rau kev tswj kev nrawm
Kuaj rau seem ua ntej: ua ntej vuam lub neej ua haujlwm tiag tiag, xyaum rau ntawm seem hlau ntawm tib tuab thiab cov khoom siv. Kho cov nrawm kom txog thaum lub hlaws yog tsis zoo, uas tsis muaj qhov tsis xws luag xws li hlawv - los ntawm lossis undercut.
Siv cov lus qhia: rau cov pob qij txha ntev, clamp ib qho ncaj (piv txwv li, ib qho steel bar) nrog kev sib koom ua ke kom muaj kev sib koom ua ke thiab kev coj ua.
Saib xyuas lub pas dej weld: lub pas dej loj qhia tau tias kev nrawm yog qhov tseeb. Lub pas dej uas dhau (qeeb ceev) txaus ntshai hlawv - los ntawm; Ib qho uas tsawg heev (nrawm nrawm) txhais tau tias tsis zoo fusion. Kho nyob rau hauv lub sijhawm tiag tiag raws li qhov koj pom.
Sib tw ceev rau txoj hauj lwm: qeeb qeeb rau ntsug / overhead vuam, ceev rau tiaj tus, cov ntaub ntawv nyias nyias. Cia cov pas dej ua tus cwj pwm qhia koj -}} Yog tias nws sags, qeeb; Yog tias nws tsis muaj fuse, ceev me ntsis.
6. Xaus: Kev nrawm yog ib qho cuab yeej, tsis yog txoj cai
Cov lus nug ntawm vuam ceev ceev los yog qeeb yog nyob ntawm ntsuas cov lus qhia tshav kub nrog cov kev xav tau ntawm txoj haujlwm. Qeeb Vuam ua kom muaj kev nkag siab rau tuab, tseem ceeb, thaum cov pob qij txha ntsug, thaum lub sij hawm nrawm nrawm nrawm los yog cua sov-}} cov ntaub ntawv rhiab. Tus yuam sij yog kho kom nrawm raws li cov khoom tuab, tsim qauv tsim, thiab muab cov khoom siv hluav taws xob zoo li qub li- lub sij hawm qhia.
Piv txwv li, lub 6013 tus pas nrig wel Tib tus pas dej ntawm 16 {{{4 4}}} gauge steel xav tau kev txav sai sai los tiv thaiv cov hlawv {}} los ntawm. Los ntawm kev ua raws li kev xav tau Weld cov kev xav tau dhau ntawm lub nrawm nrawm, koj yuav ua tiav ib txwm, muaj txiaj ntsig zoo hauv ib daim ntawv thov.
