Nthawi zambiri, zida zamfuti za MIG zitha kukhala zongoganizira pang'ono pakuwotcherera, chifukwa nkhawa ndi zida, kayendedwe kantchito, kapangidwe ka gawo ndi zina zambiri zimawongolera chidwi chaowotcherera, oyang'anira ndi ena omwe akugwira nawo ntchitoyi. Komabe, zigawozi - makamaka maupangiri olumikizana - zitha kukhala ndi vuto lalikulu pakuwotcherera.
Mu njira yowotcherera ya MIG, nsonga yolumikizirana ndiyomwe imayang'anira kusamutsa chowotcherera ku waya pamene chikudutsa pobowo, ndikupanga arc. Momwemonso, mawaya amayenera kudutsa mosasunthika pang'ono pomwe akulumikizanabe ndi magetsi. Malo a nsonga yolumikizana mkati mwa mphuno, yomwe imatchedwa recess nsonga yolumikizana, ndiyofunikiranso. Ikhoza kukhudza khalidwe, zokolola ndi ndalama mu ntchito kuwotcherera. Zitha kukhudzanso kuchuluka kwa nthawi yomwe imagwiritsidwa ntchito pochita zinthu zosawonjezera mtengo, monga kugaya kapena kuphulitsa mbali zomwe sizikuthandizira kuti ntchitoyi itheke kapena kupindula.
Njira yoyenera yolumikizirana nayo imasiyanasiyana malinga ndi ntchito. Chifukwa mawaya omata pang'ono amapangitsa kuti mawaya azikhala okhazikika komanso kuti mawotchi otsika kwambiri, kutalika kwa waya wabwino kwambiri kumakhala kofupikitsa kovomerezeka kugwiritsa ntchito.
Zotsatira za weld quality
Kupuma kwa nsonga yolumikizira kumakhudza zinthu zingapo zomwe zimatha kukhudza mtundu wa weld. Mwachitsanzo, chomata kapena ma elekitirodi (kutalika kwa waya pakati pa kumapeto kwa nsonga yolumikizirana ndi malo ogwirira ntchito) zimasiyanasiyana malinga ndi nsonga yolumikizirana - makamaka, kuchulukira kwa nsonga yolumikizirana, ndikotalikirapo waya. Pamene kuyika kwa waya kumawonjezeka, magetsi amawonjezeka ndipo amperage imachepa. Izi zikachitika, arc imatha kusokonekera, kupangitsa spatter mochulukira, kuyendayenda kwa arc, kuwongolera kutentha kwazitsulo zopyapyala komanso kuthamanga kwapang'onopang'ono.
Contact nsonga recess imakhudzanso kutentha kowala kuchokera ku welding arc. Kuchuluka kwa kutentha kumabweretsa kuwonjezeka kwa kukana kwa magetsi kuzinthu zogwiritsira ntchito kutsogolo, zomwe zimachepetsa kuthekera kwa nsonga yolumikizana kuti ipititse patsogolo pa waya. Kusayenda bwino kumeneku kungayambitse kulowa kosakwanira, spatter ndi mavuto ena omwe angayambitse kuwotcherera kosavomerezeka kapena kuyambitsa kukonzanso.
Komanso, kutentha kwambiri nthawi zambiri kumachepetsa moyo wogwira ntchito wa nsonga yolumikizana. Zotsatira zake zimakhala zotsika mtengo zomwe zimatha kugulidwa komanso nthawi yocheperako yosinthira nsonga yolumikizirana. Chifukwa chakuti ntchito nthawi zonse imakhala yotsika mtengo kwambiri pakuwotcherera, nthawi yocheperako imatha kuwonjezera kuchuluka kosafunikira kwa ndalama zopangira.
Chinthu chinanso chofunikira chomwe chimakhudzidwa ndi nsonga yolumikizirana ndikuteteza kuphimba kwa gasi. Pamene nsonga yolumikizira imayika mphuno kutali kwambiri ndi arc ndi weld puddle, malo owotcherera amatha kutengeka mosavuta ndi mpweya womwe ungathe kusokoneza kapena kuchotsa mpweya wotchinga. Kusatetezedwa bwino kwa gasi kumabweretsa porosity, sipatter ndi kusalowa mokwanira.
Pazifukwa zonsezi, ndikofunikira kugwiritsa ntchito nthawi yoyenera yolumikizirana ndi pulogalamuyi. Malingaliro ena amatsatira.
Chithunzi 1: Njira yoyenera yolumikizirana nayo imasiyanasiyana malinga ndi ntchito. Nthawi zonse funsani malingaliro a wopanga kuti mudziwe njira yoyenera yolumikizirana ndi ntchitoyo.
Mitundu ya nsonga yolumikizirana
The diffuser, nsonga ndi nozzle ndi zigawo zitatu zikuluzikulu zomwe zimakhala ndi MIG mfuti consumable. Diffuser imamangiriza mwachindunji pakhosi lamfuti ndikumanyamula mpaka pansonga yolumikizirana ndikuwongolera mpweya kulowa mumphuno. Nsonga imalumikizana ndi cholumikizira ndikusamutsa magetsi kupita ku waya momwe amawongolera kupyola pamphuno ndi kuthawi la weld. Mphunoyi imamangiriridwa ku chowumitsira ndipo imathandizira kuti mpweya wotchinga ukhale wolunjika pazitsulo zowotcherera ndi thabwa. Chigawo chilichonse chimagwira ntchito yofunika kwambiri pamtundu wa weld.
Mitundu iwiri yolumikizira nsonga yolumikizira ikupezeka ndi zida zamfuti za MIG: zokhazikika kapena zosinthika. Chifukwa cholumikizira cholumikizira nsonga chosinthika chimatha kusinthidwa kukhala makulidwe osiyanasiyana akuya ndi zowonjezera, ali ndi mwayi wotha kukwaniritsa zofunikira pakupuma kwamapulogalamu ndi njira zosiyanasiyana. Komabe, amawonjezeranso kuthekera kwa zolakwika za anthu, popeza owotcherera amawasintha poyendetsa malo a nozzle kapena njira yotsekera yomwe imateteza nsonga yolumikizirana panthawi yopuma.
Pofuna kupewa kusiyanasiyana, makampani ena amasankha malangizo okhazikika ngati njira yowonetsetsa kuti weld amafanana ndikupeza zotsatira zosasinthika kuchokera kwa wowotcherera wina kupita wina. Malangizo okhazikika opumira amakhala ofala muzowotcherera zokha pomwe malo okhazikika ndi ofunikira.
Opanga osiyanasiyana amapanga zinthu zogwiritsidwa ntchito kuti zigwirizane ndi kuya kosiyanasiyana kwa nsonga yolumikizira, yomwe nthawi zambiri imakhala yoyambira 1⁄4-inch mpaka 1⁄8-inch.
Kusankha nthawi yoyenera yopuma
Njira yoyenera yolumikizirana nayo imasiyanasiyana malinga ndi ntchito. Lamulo labwino lomwe liyenera kulingaliridwa limakhala pansi pamikhalidwe yambiri, pomwe kuchuluka kwapano kukuchulukirachulukira, kupuma kuyeneranso kuwonjezeka. Komanso chifukwa mawaya omata pang'ono amapangitsa kuti ma arc akhazikike bwino komanso kuti mpweya wocheperako ukhale wocheperako, utali wabwino kwambiri womata waya umakhala wamfupi kwambiri womwe umaloledwa kugwiritsa ntchito. Nawa malangizo, pansipa. Komanso, onani Chithunzi 1 kuti mudziwe zambiri.
1.Pakuwotcherera kwa pulsed, njira zosinthira kutsitsi ndi ntchito zina zazikulu kuposa ma amps 200, nsonga yolumikizana ndi 1/8 inch kapena 1/4 inchi ikulimbikitsidwa.
2.Pamapulogalamu okhala ndi mafunde apamwamba, monga omwe amalumikizana ndi zitsulo zokhuthala ndi waya wokulirapo kapena waya wachitsulo wokhala ndi njira yosinthira kupopera, nsonga yolumikizirana yokhazikika ingathandizenso kuti nsonga yolumikizana ikhale kutali ndi kutentha kwakukulu kwa arc. Kugwiritsa ntchito waya wotalikirapo panjirazi kumathandizira kuchepetsa kuyambika kwa burnback (kumene waya amasungunuka ndikukafika pansonga yolumikizana) ndi spatter, zomwe zimathandizira kukulitsa moyo wa nsonga yolumikizana ndikuchepetsa mtengo wogula.
3. Mukamagwiritsa ntchito njira yosinthira kadulidwe kakang'ono kapena kuwotcherera kwapang'onopang'ono, nsonga yolumikizana ndi waya yokhala ndi inchi pafupifupi 1⁄4 imalimbikitsidwa. Kutalika kwa chomangira chachifupi kumalola kusuntha kozungulira pang'ono kupita ku zida zowotcherera popanda kuyika pachiwopsezo chowotcha kapena kupindika komanso ndi spatter yochepa.
4.Zowonjezera zowonjezera zowonjezera nthawi zambiri zimasungidwa kwa chiwerengero chochepa cha ntchito zafupipafupi zomwe zimakhala zovuta kuzipeza, monga zozama ndi zopapatiza za V-groove mu kuwotcherera kwa chitoliro.
Malingaliro awa angathandize pakusankha, koma nthawi zonse funsani malingaliro a wopanga kuti mudziwe njira yoyenera yolumikizirana ndi ntchitoyo. Kumbukirani, malo olondola atha kuchepetsa mwayi wa spatter wambiri, porosity, kulowa kosakwanira, kuwotcha kapena kuwotcha pazinthu zowonda, ndi zina zambiri. Kuphatikiza apo, kampani ikazindikira kuti njira yolumikizirana ndiyomwe idayambitsa zovuta zotere, imatha kuthandizira kuthetsa mavuto omwe amawononga nthawi komanso okwera mtengo kapena ntchito zowotcherera monga kukonzanso.
Zambiri: Sankhani malangizo abwino
Chifukwa malangizo okhudzana ndi kulumikizana ndi chinthu chofunikira kwambiri pakumaliza ma welds abwino komanso kuchepetsa nthawi yocheperako, ndikofunikira kusankha nsonga yolumikizirana yapamwamba. Ngakhale kuti zinthuzi zimatha kuwononga ndalama zochulukirapo kuposa zotsika mtengo, zimapereka phindu kwanthawi yayitali potalikitsa moyo komanso kuchepetsa nthawi yosinthira. Kuphatikiza apo, maupangiri apamwamba olumikizirana amatha kupangidwa kuchokera kuzitsulo zamkuwa zowongoleredwa bwino ndipo nthawi zambiri amapangidwa kuti azitha kulolerana ndi makina, ndikupanga kulumikizana kwabwinoko kwamafuta ndi magetsi kuti muchepetse kutentha komanso kukana magetsi. Zinthu zodyedwa zapamwamba kwambiri zimakhala ndi bore losalala lapakati, zomwe zimapangitsa kuti mawaya asakanike pang'ono. Izi zikutanthauza kuti mawaya amadyetsedwa mosalekeza ndi kukokera pang'ono, komanso zovuta zomwe zingachitike. Malangizo apamwamba kwambiri angathandizenso kuchepetsa kuyatsa ndikuthandizira kupewa kusinthasintha kwa arc chifukwa cha kusagwirizana kwa magetsi.
Nthawi yotumiza: Jan-01-2023
