Xov xwm - Yooheart neeg hlau qhia cov ntawv ceeb toom ntawm kev tiv thaiv roj welding

Gas shielded welding yog hais txog txoj kev vuam uas tiv thaiv cov pa roj carbon dioxide lossis argon, tsis tas siv cov vuam hlau. Cov txheej txheem roj shielded vuam yog tsim rau vuam ntawm ntau yam loj-scale steel qauv tej yaam num xws li low-carbon steel thiab low-alloy high-strength steel. Nws muaj cov khoom siv vuam zoo, zoo tawg ua haujlwm, vuam me me deformation, thiab ntau yam deformation loj. Vuam ntawm nyias daim hlau thiab nruab nrab thiab tuab daim hlau yog ua tau.

Ntau txoj kev vuam ntawm cov roj shielded vuam

1. ntsug nce vuam

Txoj hauj lwm ntawm vuam teeb yog ib qho tseem ceeb heev thaum vuam vertically, thiab vuam teeb yuav tsum yog roughly perpendicular mus rau lub workpiece. Thaum lub sij hawm ncaj-kab vuam, cov hlaws weld zoo li convex, thiab cov tsos ntawm cov hlaws weld tsis zoo thiab yooj yim rau undercut.

Thaum lub sij hawm ntau txheej welding, cov hlaws rov qab yog ib qho yooj yim rau impervious rau vuam, yog li nws feem ntau tsis siv. Yog li ntawd, txoj kev nce toj ntsug feem ntau yog viav vias, thiab txoj kev viav vias yog qhov viav vias me me. Txij li thaum lub tshav kub yog concentrated nyob rau hauv lub sij hawm no, lub weld hlaws yog ib qho yooj yim rau bulge, yog li nws yuav tsum tau txav mus sai sai nyob rau hauv lub uniform viav vias.

Yog tias yuav tsum tau siv txoj hlua vuam loj dua, txoj kev viav vias viav vias yuav tsum tau siv los txav nrawm rau hauv nruab nrab ntawm cov hlaws hlaws thiab nyob me ntsis ntawm ob sab kom tsis txhob raug txiav. Txawm li cas los xij, kev saib xyuas yuav tsum tsis txhob siv lub viav vias qis qis qis.

2. ntsug welding

Nyob rau hauv lub downward ntsug welding, thiaj li yuav tswj tau lub pas dej ua ke molten, lub vuam torch yuav tsum taw tes diagonally downward rau lub molten pas dej ua ke thiab tuav ib tug tej lub kaum sab xis. Lub arc yuav tsum tau tsom mus rau pem hauv ntej ntawm lub pas dej molten, txwv tsis pub, thaum lub molten hlau ntws mus rau pem hauv ntej ntawm lub arc, nws yog ib qho yooj yim ua rau vuam lumps thiab tsis nkag mus. Pas dej hlau thawb.

Ua rau porosity nyob rau hauv cov roj shielded vuam

Cov roj tiv thaiv tsis zoo

1. Qhov zoo ntawm cov pa roj hauv lub tog raj kheej tsis zoo, thiab nws tsis muaj purity ntau tshaj 98%. Nws muaj cov pa phem xws li nitrogen, uas ua rau cov pores tom qab vuam.

2. Lub raj xa hluav taws xob los ntawm lub tog raj kheej roj mus rau lub vuam vuam tsis nruj, thiab cov cua nkag mus rau hauv cov pores.

3. Huab cua turbulence tsim stomata

a. Cov cua nyob rau hauv ib puag ncig sab nraud cuam tshuam rau kev tiv thaiv huab cua nyob ib puag ncig lub pas dej molten

b. Tsawg roj ntws los yog splatter clogging lub nozzle

c. Lub kaum sab xis ntawm lub vuam teeb loj dhau los yog qhov vuam vuam yog dhau deb ntawm qhov chaw ua haujlwm

d. Cov pa roj shunt ceramic qhia lub nplhaib ntawm lub teeb nozzle puas lawm thiab tsis tau muab tshem tawm lossis hloov

4. Vuam tshuab tswj huab cua valve qhib lag, kaw thaum ntxov, los yog nyob rau hauv kev sib cuag tsis zoo.

Qhov tsis xws luag hauv vuam hlau thiab lub hauv paus hlau nws tus kheej

1. Cov khoom tseem ceeb vuam hlau yog xeb, oily, thiab lwm yam.

2. Cov hmoov sab hauv ntawm flux-cored vuam hlau yog damp, thiab sab nraud yog xeb.

3. Muaj qhov pores nyob rau hauv lub hauv paus hlau nws tus kheej, los yog muaj ntau cov roj paug nyob rau hauv, los yog cov hlau tsis zoo hloov los ntawm kev siv mus sij hawm ntev nyob rau hauv cov tshuaj ib puag ncig, xws li tshuaj yeeb nkab, tshuab cuab yeej cam khwb cia hlau thiab cam khwb cia hlau qhov chaw.

4. Muaj cov pa phem lossis dej uas tsim cov pa phem hauv qhov chaw vuam, thiab lawv tsis raug ntxuav.

Tsis tsim nyog welding parameter

Yog tias qhov kev teeb tsa tam sim no thiab qhov hluav taws xob loj dhau lawm, nws yooj yim rau decompose carbon dioxide rau hauv cov pa roj carbon monoxide nyob rau hauv qhov kub thiab txias ionization ib puag ncig thaum tshav kub input loj, thiab carbon monoxide pores yuav raug generated thaum lub weldment txias sai.

Cov tswv yim daws teeb meem

1. Ntxiv argon lossis carbon dioxide sib xyaw roj los kuaj seb cov pa roj carbon dioxide puas tsis huv, thiab saib seb cov roj sib xyaw puas muaj kev tiv thaiv zoo dua. Yog tias muaj, hloov cov khoom siv roj nrog qhov zoo.

2. Raws li kev tiv thaiv ntawm cov roj sib xyaw, tseem muaj qhov pores los tshem tawm qhov ua rau cov roj, thiab lwm yam laj thawj tuaj yeem kuaj pom qhov muag.

3. Nws yog qhov zoo tshaj kom tsis txhob quav ntsej txog cov teeb meem ntawm lub hauv paus hlau thiab vuam wire nws.

Post lub sij hawm: Nov-01-2022