I-Gas Metal Arc Welding (GMAW): "Ukhetho oluKhethekileyo" lwe-High-Quality Welding

I-gas metal arc welding (GMAW) isebenzisa igesi engasebenziyo okanye igesi esebenzayo njengendlela yokukhusela ukwahlula impembelelo yomoya kwi-pool etyhidiweyo. Ibonisa umgangatho ophezulu we-welding kunye nokwakheka okuhle kwe-weld. Ikwahlulwe kwiintlobo ezimbini eziphambili: i-tungsten inert gas welding (TIG) kunye ne-CO₂ i-gas shielded welding (MIG / MAG), efanelekileyo kwizinto ezahlukeneyo kunye neemeko, ngokulandelanayo.

1. I-Tungsten Inert Gas Welding (i-TIG Welding): "Ingcali" kwi-Precision Welding

I-TIG welding isebenzisa i-argon gas (ubunyulu ≥99.99%) njengegesi ekhuselayo. Itshisa i-workpiece nge-arc phakathi kwe-electrode ye-tungsten kunye ne-workpiece, kwaye inokwenziwa kunye okanye ngaphandle kocingo lokuzalisa (i-autogenous welding). Ilungele ukuwelda ngokuchanekileyo kwezinto ezixutywe lula njengensimbi engenasici, i-aluminium alloys, kunye ne-titanium alloys, ezifana nezixhobo ze-aerospace, iinqanawa zoxinzelelo kunye nezixhobo zonyango.

Amanqaku okusebenza aPhambili:

I-Tungsten Electrode Selection: Sebenzisa i-electrode ye-tungsten eqinisekisiweyo ukuwelda isinyithi esingenasici kunye ne-electrode ecocekileyo ye-tungsten ye-welding aluminium alloys. Lungisa i-electrode ye-tungsten ububanzi ngokwexesha langoku (umzekelo, i-2.4mm tungsten electrode ye-100-150A yangoku). Lawula ubude bokwandiswa kwe-electrode ye-tungsten kwi-2-5mm ukuphepha ukudibanisa nocingo lokuzalisa, olunokubangela ukutshiswa kwe-electrode ye-tungsten.

Ulawulo lwegesi: Lungisa ukuhamba kwe-argon ngokobunzima bokusebenza: 8-10L / min kwiipleyiti ezincinci (≤3mm) kunye ne-12-15L / min kwiiplate ezishinyeneyo (> 5mm). Yandisa ixesha lokukhusela i-argon ngemizuzwana ye-3-5 xa uphelisa i-arc ukukhusela i-oxidation ephezulu yokushisa kwe-weld.

5mm). Yandisa ixesha lokukhusela i-argon ngemizuzwana ye-3-5 xa uphelisa i-arc ukukhusela i-oxidation ephezulu yokushisa kwe-weld.

I-Filler Wire Technique: Yongeza ucingo lokuzalisa ukusuka phambi kwechibi elityhidiweyo, ugweme ukudibanisa ngokuthe ngqo kwi-arc. Lawula isantya se-welding kwi-5-10cm / min ukuze uqinisekise ukudibanisa okupheleleyo kwe-pool etyhidiweyo kwaye ugweme ukungabikho kweziphene zokudibanisa.

2. I-CO₂ I-Gas Shielded Welding (i-MIG / MAG iWelding): "I-High-Efficiency Expert" yoMveliso weMisa

I-CO₂ i-gas shielded welding isebenzisa i-CO₂ okanye igesi edibeneyo ye-CO₂ kunye ne-argon njengendlela yokukhusela, kunye nokutya okuzenzekelayo ngocingo. Inokusebenza kakuhle kwe-welding (i-2-3 amaxesha e-SMAW) kunye neendleko eziphantsi, okwenza ukuba ifanele ukuveliswa kwentsimbi ephantsi kwekhabhoni kunye nentsimbi ephantsi, efana nemizimba yeemoto, i-casings ye-appliance yasekhaya, kunye nokuveliswa kwee-container.

Amanqaku okusebenza aPhambili:

Ukuhambelana kweParameter: Hlanganisa ngokungqongqo i-current and voltage (umzekelo, i-22-24V ye-150A yangoku). Lawula ubude bokwandiswa kwentambo kwi-10-15mm (malunga nama-5-10 amaxesha e-diameter yocingo); ukongezwa okude ngokugqithisileyo kunokubangela isitshizi esigqithisileyo, ngelixa esifutshane kakhulu sinokutshisa umlomo.

I-engile yokuwelda: Yamkela indlela yewelding engasekhohlo (ukuhambisa itotshi yewelding ukusuka ekunene ukuya ekhohlo). Gcina i-engile ye-15-25 ° phakathi kwetotshi ye-welding kunye ne-workpiece ukuqinisekisa ukugquma okupheleleyo kwedama elityhidiweyo ngegesi. Sebenzisa isikhuselo somoya xa isantya somoya singaphezulu kwe-2m/s ukunqanda ukuba irhasi ekhuselayo ingavuthelwa, nto leyo enokubangela uburhabaxa.