CO₂ VUAM, kuj yog hu uaCoo Roj Hlau Arc Vuam (Gmaw)lossisCO₂ MIG VUAM, yog cov neeg nyiam siv hlau - Koom nrog cov txheej txheem hlau hluav taws xob, hluav taws xob txuas ntxiv, thiab cov pa roj carbon monom). Nws ntog nyob rau hauv lub dav dav ntawmGas Hlau Arc Vuam (Gmaw), uas suav nrog lwm txoj kev zoo li MIG (hlau inert roj) vuam - Tab sis cov roj sib txawv los ntawm kev thaiv cov roj.
Cov txheej txheem no yog muaj nuj nqis rau nws txoj kev ua tau zoo, nrawm, thiab versualility, thiab versuality, thiab versually, thiab ntau yam siv nyob rau hauv kev lag luam xws li kev lag luam lag luam, tsim kho, thiab hlau ntaub. Cia peb tawg cia li ua haujlwm li cas, nws qhov tseem ceeb, zoo, thiab cov ntawv thov.
Yuav ua li cas col vuam ua haujlwm?
Ntawm nws cov tub ntxhais, co cov vuam qws los ntawm kev tsim lub arc txuas ntxiv ntawm cov hlau txuas ntxiv thiab cov hlau hauv paus. Lub arc melts ob qho tib si electrode (uas ua los ua ib tug muab cov khoom siv) thiab cov hauv paus hlau, tsim cov pas dej molten. Raws li lub molten hlau txias, nws solidifies rau hauv lub zog, fused sib koom ua ke.
Lub luag hauj lwm tseem ceeb ntawm boos roj ntawm no yogCov thaiv cov ntaub thaiv Weld Rhawv pas dej ntawm cov kis las(xws li oxygen, nitrogen, thiab hydrogen). Yog tsis tiv thaiv npog, cov roj av no yuav hnov mob nrog cov hlau molten, ua rau tsis xws luag xws li porosity (npuas, lossis pob qij txha tsis muaj zog. Koom haum huab cua ib ncig ntawm weld, tsim kev tiv thaiv kev tiv thaiv.
Qhov tseem ceeb ntawm kev vuam
Txhawm rau ua co₂ vuam, koj xav tau plaub ntu tseem ceeb:
Lub zog: Ib qho ncaj qha tam sim no (DC) muab fais fab uas ua rau muaj hluav taws xob arc. Nws feem ntau ua haujlwm hauvCov Volfage tas li (CV)Hom los tswj cov arc ruaj khov raws li cov xaim pub tsis tu ncua.
Hlau Feeder: Ib lub cuab yeej uas pub mis xaim hluav taws xob electrode (feem ntau hlau) los ntawm kev siv phom nyob rau ntawm lub nrawm, kho tau nrawm. Cov hlau hlau ua raws li ob lub electrode (ua hluav taws xob kom tsim lub arc) thiab cov muab cov khoom siv cov khoom siv.
Vuam rab phom: Txhais cov cuab yeej Handheld uas qhia cov hlau elegle rau hauv thaj chaw weld thiab muab cov roj sib koom ua ke xws li ntawm arc. Nws muaj nozzle los coj tus pa roj thiab ib qho kev ua rau pib / nres Arc thiab hlau pub.
Koom tes thaiv cov roj cua: Lub tog raj kheej ntawm cov roj compressed sib xyaw, txuas nrog lub vuam rab phom ntawm ib lub hose thiab kev tswj hwm. Cov pa roj ntws ntawm tus nqi tswj (feem ntau 15-25 liv ib feeb) los tuav lub pas dej weld pas dej.
Vim li cas siv CO₂ ua cov pa tiv thaiv roj?
Kev xaiv yog xaiv los ntawm kev thaiv cov roj rau cov khoom tshwj xeeb piv rau cov roj hauv cov roj (zoo li argon, siv nyob rau hauv tus qauv mig vuam):
Nqi -}}}}: Co₂ yog qhov pheej yig dua thiab muaj ntau dua muaj nyob hauv cov roj ntsha sib xyaw ua ke (piv txwv li armon {2} {{{{cov phiaj xwm.
Kev nkag siab: Nws ua rau muaj qhov kub tshaj arc dua li cov roj av hauv av, uas nce weld nkag mus rau hauv cov hlau. Qhov no yog pab tau rau koom nrog tuab lossis siab-} lub zog hlau.
Arc stability (rau qee yam hlau): Thaum co₂ tsis yog inert (nws yog reactive), nws ua haujlwm tau zoo nrog cov hlau hlau thiab tsawg {{{{}} cov hlau almoy. Cov kev cuam tshuam yuav pab txo cov kheej (tsis xav tau molten hlau tee) piv rau cov txheej txheem tsis sib xws, txawm hais tias nws yuav ua rau muaj kev sib cav sib ceg ntau dua li Arton {{2} Raws li kev sib xyaw.
Cov hlau thiab cov ntaub ntawv siv nyob rau hauv band vuam
CO₂ VUAM YOGfeem ntau siv rau cov hlau ferals(Cov hlau uas muaj hlau), suav nrog:
Carbon Steel (hlau me, siab - cov hlau)
Tsawg -} allloy steel
Nrum hlau (nrog npaj kom zoo)
Nws yogtsis haum rau tsis - ferrous hlau(piv txwv li, tooj liab, lossis stainless hlau) vim tias bev reacts nrog cov khoom siv no thaum muaj kev cuam tshuam zoo li oxidation lossis britleness. Rau tsis - ferrous hlau, inert roj sib tov (piv txwv li, argon) yog nyiam.
Qhov Zoo Ntawm Ciav Vuam
Kev tsim khoom zoo: Kev pub hlau nrad hlau pub dawb thiab nrawm vuam cia rau kev koom nrog ntau, ua rau nws zoo tagnrho rau ntau lawm (piv txwv li, vuam tsheb ncej).
Tus nqi qis: Coo₂ roj thiab cov khoom siv tau pheej yig piv rau lwm txoj kev GMAW.
Sib sib zog nqus tob: Cov ARC kub tsim muaj zog, sib sib zog tuav, haum rau cov ntaub ntawv tuab.
Kev xeem: Cov cuab yeej siv hluav taws xob xwb, thiab cov thooj thooj kheej kheej yooj yim thauj, ua rau {{0 og, kev tsim kho vuam (piv txwv li, chaw tsim khoom).
Qhov Tsis Zoo ntawm CO₂ Vuam
Txwv rau cov hlau ferals: Raws li tau sau tseg, nws tsis tuaj yeem siv rau tsis - ferrous hlau.
Ntau Sib Tw: Piv rau MIG VUAM NROG Keg Vuam Nrog Argon Blends, Co₂ Welding Yuav Ua Tau Ntau Tshaj, Xav Tau Post {} ug, sib tsoo).
Porosity pheej hmoo hauv ya raws: Co nqus dej noo los ntawm huab cua, uas tuaj yeem nkag mus rau hauv Weld pas thiab ua rau porosity (cov npuas me me) yog tias cov pa roj av tsis tau qhuav lossis tswj tau.
Weld tsos: Welds tej zaum yuav muaj lub ntsej muag ua kom tiav dua cov ua tau nrog cov roj inert, tab sis qhov no feem ntau lees paub cov txheej txheem (而非 kom hniav).
Cov Kev Siv Cov Ntawv Siv
Co₂ vuam yog dav siv nyob rau hauv kev lag luam uas ceev, nqi, thiab lub zog yog qhov tseem ceeb:
Kev tsim kho tsheb (vuam chassis, lub cev lauj kaub, thiab kev tso pa).
Kev tsim kho (koom nrog cov nqaj hlau, kav dej, lossis cov txheej txheem txheej txheem).
Hlau fabrication hlau (lub tsev tsim khoom, tso tsheb hlau luam, khoom siv).
Kho Kev Ua Haujlwm (Kho Cov Hlau Qhov Chaw, xws li ua liaj ua teb tshuab lossis cov cuab yeej hnyav).
Yuav ua li cas nws txawv los ntawm lwm txoj kev vuam
| Yam zoo | CO₂ VUAM (COU GMAW) | Tus Qauv Vuam (Argon / Sib Tham - co) | Pas vuam (smaw) |
|---|---|---|---|
| Tiv Thaiv Roj | CO₂ (reactive) | Argon lossis Argon - co₂ (inert / reactive Mix) | Tsis muaj (flux -} coated electrode) |
| Cov Hlau Welded | Cov hlau ferrous | Ferrous + tsis - ferrous (piv txwv li, txhuas) | Cov hlau ferrous |
| Hov ceev | Fast (Nruam Hlau Pub Kab Hlau) | Kev yoov mov | Qeeb (kev hloov electrode) |
| Lub hau xwb | Mob siab rau siab | Qi | Siab |
| Tus nqi | Qi | Tswj kav | Tsawg (tab sis qeeb qeeb) |
Tag
Co₂ vuam yog tus nqi -}}} {} Cov txheej txheem GMaw nrawm nrawm thaum txuas ntxiv hlau hluav taws xob cov hlau. Nws zoo siab ntawm kev koom nrog cov hlau ferrous zoo li cov hlau ua hlau, muab cov khoom lag luam tob thiab ua rau nws yog staple hauv kev tsim, tsim kho, thiab kho kom tiav. Thaum nws muaj kev txwv (piv txwv li, tsis muaj zog, tsis muaj peev xwm rau weld tsis- ferrous hlau), nws cov peev xwm ua nws xaiv qhov kev xaiv hlau sib koom tes.
