I-Welding yinqubo lapho izinto zokusebenza ezizoshiselwa khona (ezifanayo noma ezihlukene) zihlanganiswa ngokushisa noma ingcindezi noma kokubili, futhi ngezinto zokugcwalisa noma ngaphandle kwazo, ukuze izinto zokwakha ziboshwe phakathi kwama-athomu ukuze akhe i-athomu. uxhumano.Ngakho yiziphi amaphuzu abalulekile kanye nesaziso salokhoinsimbi engagqwali welding?
Iyiphi i-electrode esetshenziselwa ukushisela insimbi engagqwali?
1.Ama-electrode ensimbi engagqwali angahlukaniswa abe ama-electrode ensimbi engagqwali e-chromium kanye nama-electrode ensimbi engenasici ye-chromium-nickel.Lezo zalezi zinhlobo ezimbili zama-electrode ahlangabezana nezinga likazwelonke zizohlolwa ngokwezinga likazwelonke le-GB/T983-2012.
I-2.I-Chromium insimbi engagqwali inokumelana nokugqwala okuthile (i-oxidizing acid, i-organic acid, i-cavitation) ukumelana nokushisa nokumelana nokugqwala.Ivamise ukukhethwa njengempahla yemishini yesiteshi sikagesi, imboni yamakhemikhali, i-petroleum nokunye.Kodwa-ke, amandla okushisela ensimbi engagqwali ye-chromium ngokuvamile ampofu, futhi kufanele aqikelele ukukhokhelwa ngenqubo yokushisela, izimo zokwelapha ukushisa nokukhethwa kwama-electrode okushisela afanelekile.
I-3.Chromium-nickel insimbi engagqwali ama-electrode anokumelana nokugqwala okuhle nokumelana ne-oxidation, futhi asetshenziswa kakhulu ekwenzeni amakhemikhali, umanyolo, uphethiloli, kanye nokukhiqizwa kwemishini yezokwelapha.Ukuze uvimbele ukugqwala kwe-intergranular ngenxa yokushisa, i-welding current akufanele ibe nkulu kakhulu, engaphansi ngo-20% kunaleyo yama-electrode ensimbi ye-carbon steel. I-arc akufanele ibe yinde kakhulu, ama-interlayers apholile ngokushesha, ukushisela ubuhlalu obuncane ezifanele.
Stainless Steel Welding Amaphuzu kanye Isaziso
Ukunikezwa kwamandla okunezici zangaphandle eziqondile kuyamukelwa, futhi i-polarity enhle isetshenziselwa i-DC (intambo yokushisela ixhunywe esigxotsheni esingesihle)
1.Ngokujwayelekile kufanelekile ukushisela insimbi yepuleti elincane elingaphansi kuka-6mm.Inezici zokuma okuhle kakhulu kwe-welding kanye ne-welding deformation encane.
I-2.Igesi evikelayo i-argon enobumsulwa be-99.99%.Uma i-welding current ingu-50 ~ 150A, izinga lokugeleza kwe-argon gas liyi-8 ~ 10L/min, lapho lamanje liyi-150 ~ 250A, izinga lokugeleza kwe-argon gas yi-12 ~ 15L / min.
3.Ubude obude be-electrode ye-tungsten obusuka kubhobho yegesi kungcono kakhulu bube ngu-4~5mm.Ingu-2~3mm ezindaweni ezinokuvikela okubi njengokushisela i-fillet, kanye no-5~6mm ezindaweni lapho imbobo ijulile khona.Ibanga ukusuka ku-nozzle ukuya emsebenzini ngokuvamile alikho ngaphezu kuka-15mm.
4. Ukuze uvimbele i-welding porosity, uma kukhona ukugqwala namafutha ezingxenyeni ze-welding, kufanele kuhlanzwe.
5. Ubude be-arc yokushisela kungcono kube ngu-2 ~ 4mm lapho ushisela insimbi evamile, kanye no-1 ~ 3mm lapho ushisela insimbi engagqwali.Uma kuyinde kakhulu, umphumela wokuvikela ngeke ube muhle.
6. Uma u-butt-bottom, ukuze uvimbele ingemuva le-weld bead engezansi ekubeni i-oxidized, ingemuva nalo lidinga ukuvikelwa ngegesi.
7. Ukuze wenze igesi ye-argon ivikele kahle ichibi lokushisela futhi kube lula ukusebenza kokushisela, umugqa omaphakathi we-electrode ye-tungsten kanye nendawo yokusebenza endaweni yokushisela kufanele ngokuvamile igcine i-engeli engu-80 ~ 85 °, kanye ne-engeli phakathi i-filler wire kanye nobuso be-workpiece kufanele ibe mncane ngangokunokwenzeka.Ngokuvamile, cishe i-10 °.
8. Ukuvikela umoya nokungena komoya.Lapho kunomoya, sicela uthathe izinyathelo zokuvimba inetha, futhi uthathe izinyathelo ezifanele zokungenisa umoya endlini.
Isikhathi sokuthumela: Apr-26-2023