Dab tsi yog qhov txawv ntawm stainless hlau Mig vuam hlau, stainless hlau flux cored vuam hlau
一．Lub zog hluav taws xob nrog cov yam ntxwv ntsug sab nraud tau txais kev pom zoo, thiab qhov zoo polarity yog saws hauv DC (lub vuam hlau txuas nrog tus ncej tsis zoo)
1. Nws yog feem ntau haum raustainless hlau welding hlauntawm nyias daim hlau hauv qab 6 hli, nrog rau cov yam ntxwv ntawm kev zoo nkauj vuam tsim thiab me me vuam deformation.
2. Lub shielding gas yog argon nrog ib tug purity ntawm 99.99 feem pua. Thaum lub vuam tam sim no yog 50 ~ 150A, argon ntws yog 8 ~ 10L / min, thiab thaum qhov tam sim no yog 150 ~ 250A, argon ntws yog 12 ~ 15L / min.
3. Qhov ntev ntawm tungsten electrode protruding los ntawm cov roj nozzle yog qhov zoo dua 4 ~ 5mm, 2 ~ 3mm nyob rau hauv qhov chaw uas muaj kev tiv thaiv tsis zoo xws li fillet vuam, 5 ~ 6mm nyob rau hauv qhov chaw nrog qhov sib sib zog nqus zawj, thiab qhov kev ncua deb ntawm lub nozzle mus rau kev ua hauj lwm feem ntau tsis muaj. ntau tshaj 15mm.
4. Txhawm rau tiv thaiv qhov tshwm sim ntawm vuam qhov pores, vuam qhov chaw yuav tsum tau ntxuav yog tias muaj xeb, roj stain, thiab lwm yam.
5. Rau qhov ntev ntawm vuam arc, thaum vuam zoo tib yam hlau, 2 ~ 4 hli yog nyiam, thaum welding stainless hlau, 1 ~ 3 hli yog nyiam. Yog tias nws ntev dhau lawm, kev tiv thaiv tsis zoo.
6. Thaum lub pob tw rov qab, txhawm rau tiv thaiv lub nraub qaum ntawm lub hauv paus weld hlaws los ntawm kev oxidized, lub nraub qaum kuj yuav tsum tau tiv thaiv los ntawm roj.
7. Txhawm rau tiv thaiv lub vuam pas dej kom zoo nrog argon thiab ua kom yooj yim rau kev ua haujlwm vuam, lub kaum sab xis ntawm txoj kab nruab nrab ntawm tungsten electrode thiab cov khoom ua haujlwm ntawm vuam txoj hauj lwm yuav tsum tau tswj xyuas feem ntau ntawm 80 ~ 85 degree, thiab lub kaum sab xis ntawm cov xaim xaim thiab workpiece nto yuav tsum me me li sai tau, feem ntau txog 10 degree.
8. Windproof thiab qhov cua. Nyob qhov twg muaj cua, thov ntsuas ntsuas lub vas, thiab ntsuas qhov cua hauv tsev.
2.Cov ntsiab lus tseem ceeb thiab ceev faj rauStainless hlau Mig welding hlau
1. Flat tshwj xeeb vuam fais fab mov yog saws, thiab rov qab polarity yog saws nyob rau hauv DC (vuam hlau txuas nrog zoo electrode)
2. Feem ntau, cov ntshiab argon (purity: 99.99 feem pua) los yog Ar ntxiv 2 feem pua O2 yog siv, thiab tus nqi ntws yog 20 ~ 25L / min.
3. Lub arc ntev ntawmStainless hlau Mig vuam hlaufeem ntau welded nyob rau hauv cov xwm txheej ntawm kev hloov pauv, thiab qhov hluav taws xob yuav tsum tau hloov kho raws li qhov ntev ntawm qhov arc yog 4 ~ 6 hli.
4. Stainless hlau Mig welding hlautau yooj yim cuam tshuam los ntawm cua, thiab qee zaum cua qhov yog tsim los ntawm cov cua. Yog li ntawd, yuav tsum ntsuas cua tiv thaiv qhov twg cua ceev tshaj 0.5m/sec.
3,Cov ntsiab lus tseem ceeb thiab ceev faj ntawmstainless hlau flux cored vuam hlau
1. Pav ca vuam fais fab mov yog saws, thiab rov qab polarity yog saws thaum lub sij hawm DC vuam. Ordinary CO2 vuam tshuab tuaj yeem siv rau vuam, tab sis thov loosen lub siab ntawm hlau noj log me ntsis.
2. Lub shielding gas feem ntau yog carbon dioxide, thiab cov roj ntws yog 20 ~ 25L / min.
3. Qhov kev ncua deb ntawm lub vuam nozzle thiab lub workpiece yuav tsum yog 15 ~ 25mm.
4. Qhov ntev txuas ntxiv yog feem ntau txog 15mm thaum vuam tam sim no qis dua 250A thiab txog 20 ~ 25mm thaum vuam tam sim no siab dua 250A.
