Hauv cov txheej txheem vuam, cov khoom siv hluav taws xob feem ntau siv roj hauv tshuab ua hluav taws xob hauv lub neej tuaj yeem muab faib ua: chromium stainless hlau electrodes thiab chromium nickel stainless hlau electrodes.
Chromium stainless hlau electrode muaj qee qhov ua tau corrosion thiab kub ua hauj. Nws feem ntau tau xaiv raws li qee cov ntaub ntawv rau cov chaw nres tsheb fais fab, tshuaj lom neeg, roj av thiab lwm yam khoom siv. Txawm li cas los xij, qhov sib cuam tshuam ntawm chromium stainless hlau electrodes feem ntau tsis zoo. Xim yuav tsum tau them nyiaj rau cov txheej txheem welding, kev kho cov cua sov thiab kev xaiv ntawm vuam electrodes uas tsim nyog.
Chromium-npib tsib xee stainless hlau electrode tau zoo corrosion thiab oxidation tsis kam, thiab nws yog dav siv nyob rau hauv liaj teb ntawm chiv, roj av thiab kev kho tshuab kev lag luam. Txhawm rau tiv thaiv intergranular xeb vim los ntawm cua sov, lub vuam tam sim no yuav tsum tsis txhob loj heev, kwv yees li 20% tsawg dua li ntawm cov roj carbon steel electrodes, arc yuav tsum tsis txhob ntev dhau, thiab interlayer txias dua, yog li nqaim hlaws vuam yog zoo dua.
Cov ntsiab lus tseem ceeb thiab kev ceev faj thaum vuam cov hlau tsis huv:
1. Lub hwj huam hluav taws xob nrog cov yam ntxwv sab nraud ntsug, cov hlau hlau txuas nrog cov ncej tsis zoo.
1. Feem ntau tsim nyog rau vuam daim nyias nyias hauv qab 6mm. Nws muaj cov yam ntxwv ntawm cov tsos zoo nkauj tom qab lub vuam seam tsim, thiab tsawg dua vuam deformation.
2. Cov roj av tiv thaiv tau yog argon nrog qhov ntshiab huv ntawm 99.99%. Thaum lub vuam tam sim no yog 50150A, tus nqi ntawm argon txaus yog 810L / min, thiab thaum lub vuam tam sim no yog 150250A, tus nqi argon txaus yog 1215L / min.
3. Qhov ntev ntawm cov hluav taws xob tungsten electrode tiv thaiv los ntawm lub nkev nozzle nyiam dua 45 hli. Thaj chaw uas muaj daim thaiv tsis zoo xws li daim hlau fillet vuam yog 23 hli, thiab qhov zawj ntawm qhov tob yog 56 hli. Qhov deb ntawm lub nozzle mus rau workpiece feem ntau tsis tshaj 15mm.
4. Txhawm rau txhawm rau tiv thaiv vuam pores, yog tias muaj xeb lossis roj stains, nws yog qhov tsim nyog los ntxuav qhov chaw welded hauv lub sijhawm.
5. Thaum vuam hlau zoo tib yam, qhov ntev ntawm vuam arc yuav tsum yog 24 hli, thiab thaum vuam stainless hlau, qhov ntev ntawm vuam arc yuav tsum yog 13 hli. Yog tias lub sijhawm ntev dhau, cov tiv thaiv tiv thaiv tsis zoo.
6. Txhawm rau txhawm rau tiv thaiv lub nraub qaum sab hauv qab ntawm weld hlaws los ntawm oxidized thaum hauv qab txuas, nws yuav tsum siv roj thaiv.
7. Txhawm rau tiv thaiv lub vuam pas nrog argon roj thiab ua kom yooj yim rau kev ua haujlwm vuam, cov kab nruab nrab ntawm cov tungsten electrode thiab lub vuam feem ntau yuav tsum tswj lub kaum sab xis ntawm 8085 °, thiab lub kaum sab xis nruab nrab ntawm cov cav hlau hlau thiab saum npoo ntawm lub workpiece yuav tsum me me li sai tau. Kwv yees li 10 °.
8. Qhov cua thiab cua. Nyob rau hauv cov chaw muaj cua, thov siv ntsuas los thaiv lub network thiab ntsuas qhov tsim nyog cua sab hauv tsev.
2. Lub tshuab fais fab vuam nrog cov yam ntxwv tiaj tus, lub vuam hlau txuas nrog cov electrode zoo.
1. Lub arc ntev ntawm cov hlau tsis xeb thiab MIG vuam feem ntau welded nyob rau hauv kev hloov tshuaj txau, thiab qhov voltage yuav tsum tau hloov kho rau qhov arc ntev ntawm 46mm.
2. Windproof. MIG vuam muaj kev cuam tshuam zoo rau cua, vim cua ntsawj yuav ua rau lub qhov hws, yog li thaum cua ceev cua siab dua 0.5m / sec, nws yuav tsum ua qhov ntsuas cua tiv thaiv kev tiv thaiv lub sijhawm.
