I-TIG
1.Isicelo :
Ukushisa kwe-TIG(i-tungsten argon arc welding) iyindlela yokushisela lapho i-Ar ehlanzekile isetshenziswa njengegesi yokuvikela kanye nama-electrode e-tungsten asetshenziswa njengama-electrode.Intambo yokushisela ye-TIG inikezwa ngemicu eqondile yobude obuthile (imvamisa engu-lm).Igesi evikelwe i-arc welding esebenzisa i-tungsten emsulwa noma i-tungsten ecushiwe (i-tungsten ethothisiwe, i-cerium tungsten, i-zirconium tungsten, i-lanthanum tungsten) njenge-electrode engancibiliki, kusetshenziswa i-arc phakathi kwe-electrode ye-tungsten nesiqeshana sokusebenza ukuze kuncibilike insimbi ukuze kwakhe ukushisela.I-electrode ye-tungsten ayincibiliki ngesikhathi senqubo yokushisela futhi isebenza njenge-electrode kuphela.Ngesikhathi esifanayo, i-argon noma i-helium ifakwa ku-nozzle yethoshi ukuze ivikeleke.Izinsimbi ezengeziwe zingangezwa futhi njengoba kuthanda.Amazwe ngamazwe aziwa ngokuthiUkushisa kwe-TIG.
2. Inzuzo:
Inzuzo enkulu yendlela ye-TIG yokushisela ukuthi ingakwazi ukushisela izinhlobonhlobo zezinto.Kuhlanganisa nama-workpiece anogqinsi luka-0.6mm nangaphezulu, izinto zokwakha zifaka i-alloy steel, i-aluminium, i-magnesium, ithusi nama-alloys ayo, insimbi empunga, ama-bronze ahlukahlukene, i-nickel, isiliva, i-Titanium nomthofu.Inkambu eyinhloko yokufaka isicelo ukushisela ama-workpieces ogqinsi oluncane naphakathi njengempande yezimpande ezigabeni ezijiyile.
3. Ukunaka:
A. Izidingo zokugeleza kwegesi ezivikelayo: lapho i-welding current iphakathi kuka-100-200A, ingu-7-12L/min;lapho i-welding current iphakathi kuka-200-300A, ingu-12-15L/min.
B. Ubude obuphumayo be-electrode ye-tungsten kufanele bube bufushane ngangokunokwenzeka uma kuqhathaniswa nombhobho, futhi ubude be-arc kufanele bulawuleke ngokuvamile bube ngu-1-4mm (2-4mm wensimbi yokushisela; 1-3mm yokushisela insimbi ene-alloy ephansi. kanye nensimbi engagqwali).
C. Uma isivinini somoya sikhulu kuno-1.0m/s, izinyathelo zokuvikela umoya kufanele zithathwe;qaphela ukungena komoya ukuze ugweme ukulimala komqhubi.
D. Susa ngokuqinile amafutha, ukugqwala kanye nokungcola okumanzi endaweni yokushisela ngesikhathi sokushisela.
E. Kunconywa ukusebenzisa ugesi we-DC onezici zangaphandle eziphakeme, futhi isigxobo se-tungsten silungile ngokwedlulele.
F. Uma ushisela insimbi ye-alloy ephansi ngaphezu kuka-1.25% Cr, uhlangothi olungemuva kufanele futhi luvikelwe.
I-MIG
1. Isicelo:
Ukushisela kwe-MIGukuncibilika kwesigxobo segesi esivikelwe esivikelwe.Isebenzisa i-Ar namanye amagesi angasebenzi njengegesi eyisivikelo eyinhloko, okuhlanganisa i-Ar ehlanzekile noma i-Ar gas exutshwe nenani elincane legesi esebenzayo (njenge-O2 engaphansi kuka-2% noma i-CO2 engaphansi kuka-5%) ukuze inyibilike.Indlela ye-welding ye-arc welding.Intambo ye-MIG inikezwa ngamakhoyili noma amakhoyili ayizingqimba.Le ndlela yokushisela isebenzisa i-arc evuthayo phakathi kwentambo yokushisela eqhubekayo kanye nendawo yokusebenza njengomthombo wokushisa, futhi igesi ekhishwe kubhobho lethoshi isetshenziselwa ukuvikela i-arc yokushisela.
2.Inzuzo:
Ilungele ukushisela ezindaweni ezihlukahlukene, futhi inesivinini esisheshayo sokushisela kanye nezinga eliphakeme lokubeka.I-MIG-shielded arc welding iyasebenza ekushiseleni kwezinsimbi eziningi ezinkulu, okuhlanganisa i-carbon steel ne-alloy steel.I-MIG arc welding ifanelekela insimbi engagqwali, i-aluminium, i-magnesium, ithusi, i-titanium, amapiki nama-nickel alloys.I-arc spot welding nayo ingenziwa kusetshenziswa le ndlela yokushisela.
3.Ukunaka:
A. Izinga lokugeleza kwegesi elivikelayo lingcono kakhulu libe ngu-20-25L/min.
B. Ubude be-arc ngokuvamile bulawulwa cishe ku-4-6mm.
C. Umthelela womoya awukuthandi ikakhulukazi ukushisela.Uma isivinini somoya singaphezu kuka-0.5m/s, izinyathelo zokuvikela umoya kufanele zithathwe;qaphela ukungena komoya ukuze ugweme ukulimala komqhubi.
D. Ukusetshenziswa kwe-pulsed arc current kungathola i-arc ye-spray ezinzile, efanelekile ikakhulukazi ukushiselwa kwensimbi engagqwali, ipuleti elincane, i-welding eqondile kanye ne-welding ye-surfacing.
E. Sicela usebenzise inhlanganisela yegesi ye-Ar+2% O2 ukushisela insimbi engagqwali ye-ultra-low carbon, ungasebenzisi i-Ar ne-CO2 exutshiwe yokushisela insimbi.
F. Susa ngokuqinile amafutha, ukugqwala kanye nokungcola okumanzi endaweni yokushisela ngesikhathi sokushisela.
Isikhathi sokuthumela: Apr-25-2023