Vuam yog txheej txheem uas cov ntaub ntawv ntawm lub workpieces yuav tsum tau welded (tib yam los yog txawv) yog ua ke los ntawm cua sov los yog siab los yog ob qho tib si, thiab nrog los yog tsis sau cov ntaub ntawv, thiaj li hais tias cov ntaub ntawv ntawm lub workpieces yog bonded ntawm atoms los ua ib tug. kev sib txuas.Yog li dab tsi yog cov ntsiab lus tseem ceeb thiab kev ceeb toom raustainless hlau welding?
Dab tsi electrode yog siv rau vuam stainless hlau?
1.Stainless hlau electrodes tuaj yeem muab faib ua chromium stainless hlau electrodes thiab chromium-nickel stainless hlau electrodes.Cov ntawm ob hom electrodes uas ua tau raws li lub teb chaws tus qauv yuav tsum raug soj ntsuam raws li lub teb chaws tus qauv GB / T983-2012.
2.Chromium stainless hlau muaj qee yam corrosion kuj (oxidizing acid, organic acid, cavitation) kub kuj thiab corrosion kuj.Nws feem ntau yog xaiv los ua cov khoom siv rau chaw nres tsheb fais fab, kev lag luam tshuaj, roj av thiab lwm yam.Txawm li cas los xij, lub peev xwm vuam ntawm chromium stainless hlau feem ntau tsis zoo, thiab yuav tsum tau ceev faj them nyiaj rau cov txheej txheem vuam, kev kho cua sov thiab xaiv cov vuam electrodes uas tsim nyog.
3.Chromium-nickel stainless hlau electrodes muaj corrosion kuj zoo thiab oxidation tsis kam, thiab yog dav siv nyob rau hauv tshuaj, chiv, roj av, thiab kev kho mob machinery manufacturing.Txhawm rau tiv thaiv kev cuam tshuam ntawm intergranular vim cua sov, qhov vuam tam sim no yuav tsum tsis txhob loj dhau, uas yog li ntawm 20% tsawg dua li cov pa roj carbon steel electrodes.Lub arc yuav tsum tsis txhob ntev dhau lawm, lub interlayers txias sai sai, nqaim hlaws vuam yog tsim nyog.
Stainless Hlau Vuam Cov Ntsiab Lus thiab Daim Ntawv Ceeb Toom
Cov khoom siv hluav taws xob nrog cov yam ntxwv ntsug sab nraud tau txais yuav, thiab qhov zoo polarity yog siv rau DC (lub vuam hlau txuas nrog rau tus ncej tsis zoo)
1.Nws yog feem ntau haum rau vuam nyias phaj hlau hauv qab 6 hli.Nws muaj cov yam ntxwv ntawm vuam zoo heev thiab me me vuam deformation.
2.Cov roj tiv thaiv yog argon nrog purity ntawm 99.99%.Thaum lub vuam tam sim no yog 50 ~ 150A, tus nqi ntws ntawm argon roj yog 8 ~ 10L / min, thaum tam sim no yog 150 ~ 250A, qhov ntws ntawm argon roj yog 12 ~ 15L / min.
3.Lub protruding ntev ntawm tungsten electrode los ntawm cov roj nozzle yog nyiam dua 4 ~ 5mm.Nws yog 2 ~ 3 hli nyob rau hauv qhov chaw uas tsis zoo shielding xws li fillet vuam, thiab 5 ~ 6 hli nyob rau hauv qhov chaw uas lub qhov tob tob.Qhov kev ncua deb ntawm lub nozzle mus rau kev ua haujlwm feem ntau tsis ntau tshaj 15mm.
4. Txhawm rau tiv thaiv qhov vuam porosity, yog tias muaj xeb thiab roj stains ntawm qhov vuam, nws yuav tsum tau ntxuav.
5. Lub vuam arc ntev yog nyiam dua 2 ~ 4 hli thaum vuam zoo tib yam hlau, thiab 1 ~ 3 hli thaum vuam stainless hlau.Yog tias nws ntev dhau lawm, cov nyhuv tiv thaiv yuav tsis zoo.
6. Thaum lub pob tw-hauv qab, txhawm rau tiv thaiv lub nraub qaum ntawm lub hauv qab weld hlaws los ntawm oxidized, lub nraub qaum kuj yuav tsum tau tiv thaiv los ntawm cov roj.
7. Txhawm rau ua kom cov roj argon zoo tiv thaiv lub vuam pas dej thiab ua kom yooj yim rau kev ua haujlwm vuam, cov kab nruab nrab ntawm cov tungsten electrode thiab cov khoom ua haujlwm ntawm qhov chaw vuam yuav tsum feem ntau tuav lub kaum sab xis ntawm 80 ~ 85 °, thiab lub kaum sab xis ntawm qhov chaw. muab tub lim thiab qhov chaw ntawm lub workpiece yuav tsum me me li sai tau.Feem ntau, nws yog hais txog 10 °.
8. Windproof thiab qhov cua.Nyob qhov twg muaj cua, thov ntsuas ntsuas lub vas, thiab ntsuas qhov cua hauv tsev.
Post lub sij hawm: Apr-26-2023