Chiyambi cha Welding, Pre-Pressure, and Hold Time in Medium-Frequency Inverter Spot Welding Machines

Makina owotcherera apakati apakati pafupipafupi amagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuti athe kupanga ma welds amphamvu komanso odalirika. Kuti muwonetsetse kuti weld wabwino komanso magwiridwe antchito abwino, ndikofunikira kumvetsetsa malingaliro a kuwotcherera, kupanikizika, komanso kusunga nthawi pamakinawa. Nkhaniyi imapereka chithunzithunzi cha kuwotcherera, kukanikiza chisanadze, ndi kusunga nthawi sing'anga-pafupipafupi inverter malo kuwotcherera makina.

1. Kuwotcherera: Kuwotcherera ndi njira yoyamba yomwe zidutswa ziwiri kapena zingapo zazitsulo zimalumikizidwa palimodzi pogwiritsa ntchito kutentha ndi kukakamiza. M'makina owotcherera apakati-frequency inverter spot, njira yowotcherera imaphatikizapo kudutsa mphamvu yayikulu pazida zogwirira ntchito kuti ipangitse kutentha pamalo olumikizirana. Kutentha kumapangitsa kuti chitsulocho chisungunuke ndikupanga nugget, yomwe imalimba ikazizira. The weld nugget amapereka mphamvu ndi kukhulupirika kwa olowa.
2. Pre-Pressure: Pre-pressure, yomwe imadziwikanso kuti finyani kapena mphamvu ya electrode, imatanthawuza kukakamiza koyambirira komwe kumayikidwa pazida zogwirira ntchito musanayambe kuwotcherera. Pre-pressure ndiyofunikira kuti muwonetsetse kulumikizana koyenera komanso kulumikizana pakati pa zida zogwirira ntchito ndi maelekitirodi. Zimathandiza kuthetsa mipata iliyonse kapena zolakwika zomwe zingakhudze ubwino wa weld. Mphamvu ya pre-pressure iyenera kukhala yokwanira kukhazikitsa kulumikizana kokhazikika popanda kuchititsa mapindikidwe ochulukirapo kapena kuwonongeka kwa zida zogwirira ntchito.
3. Gwirani Nthawi: Kugwira nthawi, yomwe imadziwikanso kuti nthawi yowotcherera kapena nthawi ya nugget, ndi nthawi yomwe kuwotcherera kumasungidwa pambuyo pa pre-pressure phase. Nthawi yogwira imalola kuti kutentha kugawidwe mofanana ndikuthandizira kupanga nugget yopangidwa bwino komanso yolimba. Kutalika kwa nthawi yogwira kumadalira zinthu monga zida zogwirira ntchito, makulidwe, kuwotcherera pakali pano, komanso mtundu womwe mukufuna. Ndikofunikira kudziwa nthawi yoyenera yogwira kuti mukwaniritse ma welds okhazikika komanso odalirika.

Kuwotcherera, pre-pressure, ndi nthawi yogwira ndi zinthu zofunika kwambiri pakugwiritsa ntchito makina owotcherera apakati-frequency inverter spot. Kumvetsetsa mfundo zomwe zimatsatira njirazi ndizofunikira kuti tikwaniritse ma welds apamwamba ndi mphamvu yoyenera ndi kukhulupirika. Mwa kukhathamiritsa magawo owotcherera, kuphatikiza mphamvu ya pre-pressure ndikugwira nthawi, ogwira ntchito amatha kuonetsetsa kuti ma welds odalirika komanso osasinthasintha pamagwiritsidwe osiyanasiyana.