Vuam Basics

I. Vuam Txheej txheem cej luam
Vuam yog txheej txheem uas ob lossis ntau cov ntaub ntawv (ntawm tib hom lossis ntau hom) sib txuas sib txuas los ntawm cov cua sov lossis siab (los yog ob qho tib si) los tsim kev sib txuas mus tas li. Hom kev sib txuas no yog dav siv los txuas cov khoom siv hlau thiab yog ib feem tseem ceeb ntawm kev lag luam niaj hnub.
Qhov thib ob, lub hauv paus ntawm lub arc
Arc yog muab los ntawm vuam fais fab mov, nruab nrab ntawm ob tug ncej los tsim ib tug muaj zog thiab persistent gas paug tshwm sim. Raws li hom tam sim no, arc xeev thiab cov khoom siv electrode, lub arc tuaj yeem muab faib ua AC arc, DC arc, pulsed arc, dawb arc, compression arc (xws li ntshav arc), melting electrode arc thiab non-melting electrode arc.
Thib peb, cov lus piav qhia vuam vuam
Base hlau: cov hlau yuav tsum tau welded yog hu ua lub hauv paus khoom.
Molten poob: lub apex ntawm cov hlau yog rhuab thiab melted, thiab hloov mus rau lub pas dej ua ke molten ntawm cov kua hlau droplets.
Molten pas dej ua ke: lub weldment tsim nyob rau hauv weldment nrog ib tug tej yam geometry ntawm cov kua hlau ib feem.
Weld seam: qhov sib koom ua ke tsim hauv qhov vuam tom qab vuam.
Weld hlau: Ib feem ntawm cov hlau tsim los ntawm solidification ntawm molten puag hlau thiab muab tub lim hlau (hlau, electrode, thiab lwm yam).
Shield gas: vuam siv los tiv thaiv cov molten hlau droplets thiab lub pas dej molten los ntawm lub ntiaj teb sab nraud ntawm cov pa phem (hydrogen, oxygen, nitrogen) invasive gas.

Plaub, vuam tshuab thiab txheej txheem
Vuam tshuab npog ntau yam kev siv vuam, vuam cov ntaub ntawv, txheej txheem vuam thiab cov cuab yeej vuam thiab nws txoj kev xav tau yooj yim. Vuam thev naus laus zis yog cov txheej txheem ua tiav thiab nws cov kev cai, suav nrog cov txheej txheem vuam, kev npaj vuam, cov khoom siv vuam, cov khoom siv vuam, kev sib txuas ntawm vuam, kev ua haujlwm vuam, cov txheej txheem vuam thiab kev kho tom qab vuam.
V. Vuam txoj kev taw qhia
CO2 vuam: siv lub purity ntawm> 99.98% ntawm CO2 raws li ib tug tiv thaiv roj fusion electrode roj shielded vuam, nrog high efficiency, zog txuag, vuam deformation thiab lwm yam zoo.
MAG welding: siv cov roj sib xyaw (xws li 80% Ar + 20% CO2) raws li cov roj tiv thaiv ntawm cov hluav taws xob hluav taws xob hluav taws xob tiv thaiv vuam, haum rau cov hlau tsis muaj steel, carbon hlau thiab lwm yam khoom siv vuam.
MIG vuam: siv high-purity argon los yog tov gases raws li ib tug shielding roj fusion electrode roj shielded vuam, mas siv rau vuam txhuas thiab txhuas alloys, tooj liab thiab tooj liab alloys thiab lwm yam non-ferrous hlau.
TIG (tungsten argon arc vuam) vuam: siv cov ntshiab tungsten los yog activated tungsten raws li ib tug tsis-melting electrode ntawm inert gas shielded arc vuam, haum rau stainless hlau, carbon hlau thiab lwm yam ntaub ntawv vuam.
SMAW (Stick Arc Vuam) Vuam: Arc vuam txoj kev siv manually manipulated electrodes, dav siv nyob rau hauv vuam ntawm ntau yam hlau cov ntaub ntawv.

Rau, welding kom zoo dua tsom xam
CO2 welding piv rau electrode arc vuam muaj qhov ua tau zoo dua, zoo dua ntawm cov pob qij txha thiab cov nqi qis dua. Qhov no feem ntau yog vim CO2 vuam melting ceev thiab melting coefficient yog siab, me me bevel cross-section, tus nqi ntawm cov hlau molten yog me me, tsawg zog noj thiab cov khoom siv tsawg thiab lwm yam zoo.
Xya, mem tes vuam tshuab
Pulse welding tshuab yog ib txoj kev vuam siv lub tshuab hluav taws xob, muab faib ua cov mem tes qis thiab nruab nrab-frequency mem tes. Tsawg zaus mem tes yog tsuas yog siv rau stainless hlau, hlau thiab titanium thiab lwm yam non-ferrous hlau TIG vuam; nruab nrab-frequency mem tes muaj cov nyhuv arc compression, arc concentration, zoo rigidity, haum rau nyias stainless hlau, hlau thiab titanium thiab lwm yam non-ferrous hlau, TIG vuam thiab stainless hlau thiab txhuas thiab txhuas alloys MIG vuam.
Los ntawm cov lus qhia saum toj no, peb tuaj yeem muaj kev nkag siab ntau dua ntawm vuam tshuab thiab nws cov chaw siv. Hauv kev siv tswv yim, kev xaiv cov txheej txheem vuam tsim nyog thiab cov txheej txheem los xyuas kom meej vuam zoo thiab txo tus nqi yog qhov tseem ceeb.