Mawaya a MIG amagwira ntchito yofunikira pakuwotcherera kwamakono. Kuti tikwaniritse zotsatira zowotcherera zapamwamba, tiyenera kudziwa momwe tingasankhire ndikugwiritsa ntchito mawaya a MIG molondola.
Kodi kusankha MIG waya?
Choyamba, tifunika kukhazikika pazida zoyambira, mitundu yosiyanasiyana yazinthu zoyambira zimasankha njira yosankha waya. Zida zoyambira zoyambira ndi chitsulo cha kaboni, chitsulo chosapanga dzimbiri, aloyi ya aluminiyamu ndi zina zotero. Kwa carbon steel, kusankha kwawaya wowotchereraziyenera kutengera mphamvu zake. Low-mphamvu mpweya zitsulo akhoza kusankha wamba mpweya zitsulo kuwotcherera waya, pamene mkulu-mphamvu mpweya zitsulo amafuna apamwamba mphamvu waya kuonetsetsa ntchito pambuyo kuwotcherera. Pali mitundu yambiri ya zitsulo zosapanga dzimbiri, kuphatikizapo chitsulo chosapanga dzimbiri cha austenitic, chitsulo chosapanga dzimbiri cha ferritic, chitsulo chosapanga dzimbiri cha martensitic ndi zina zotero. Gulu lililonse lachitsulo chosapanga dzimbiri lili ndi mawonekedwe ake apadera a mankhwala ndi magwiridwe antchito, kotero muyenera kusankha waya wachitsulo chosapanga dzimbiri kuti mufanane, kuti muwonetsetse kuti kukana kwa dzimbiri ndi zida zamakina a weld zimagwirizana ndi zinthu za makolo.
Kumene, kuwotcherera ntchito zofunika ndi ife mu kukula kuganizira, mphamvu zofunika kuwotcherera ndi chimodzi mwa zinthu zofunika kwambiri pa kusankha waya. Ngati weld ikufunika kupirira katundu wapamwamba, ndiye kuti waya wapamwamba kwambiri ayenera kusankhidwa. Izi zimawonetsetsa kuti cholumikizira chowotcherera sichidzasweka pakagwiritsidwa ntchito. Pazowotcherera zokhala ndi zotsutsana ndi dzimbiri, monga zida zogwirira ntchito zomwe zimagwiritsidwa ntchito m'malo ovuta kwambiri monga makampani opanga mankhwala ndi nyanja, ndikofunikira kusankha mawaya owotcherera omwe ali ndi kukana kwa dzimbiri. Ngati workpiece welded ayenera kulimba bwino kapena otsika kutentha ntchito, inunso muyenera kusankha mosamala waya woyenerera kukwaniritsa zofunika izi.
Chachiwiri, tiyenera kudziwa kutalika kwa waya. Kusankhidwa kwa waya awiri ndi kuwotcherera panopa, malo kuwotcherera ndi m'munsi zinthu makulidwe ndi zogwirizana. Nthawi zambiri, chowotcherera chokulirapo komanso chokulirapo chimafunikira kugwiritsa ntchito waya wokulirapo. Izi ndichifukwa mawaya okhuthala amatha kupirira mafunde okwera komanso amaperekanso zitsulo zochulukirapo kuti zitsimikizire kulimba kwa weld. Poyerekeza ndi kuwotcherera mbale zopyapyala, mawaya ang'onoang'ono am'mimba mwake nthawi zambiri amasankhidwa kuti achepetse kutentha kwa kuwotcherera ndikupewa kuwotcherera ndi kupotoza. M'malo osiyanasiyana owotcherera, ndikofunikira kusankha makulidwe oyenera a waya wowotcherera. Mwachitsanzo, m'mwamba kuwotcherera udindo, chifukwa cha vuto la ntchito, kuti atsogolere ntchito ndi kuonetsetsa kuwotcherera khalidwe, ayenera kusankha woonda waya.
Kuphatikiza pa izi, tiyenera kuphatikiza magawo kuwotcherera ndondomeko kusankha waya, osiyana MIG kuwotcherera magawo magawo, monga kuwotcherera panopa, voteji, kuwotcherera liwiro, etc., komanso zimakhudza kwambiri kusankha waya. Ziyenera zochokera leni kuwotcherera ndondomeko magawo kusankha waya akhoza kusintha magawo amenewa. Pankhani ya kuwotcherera kwamakono komanso kuthamanga kwambiri, ndikofunikira kuwonetsetsa kuti waya amatha kusungunuka mofanana ndikupanga weld wapamwamba kwambiri pakuwotcherera kothamanga kwambiri. M`pofunika kusankha kuwotcherera waya zabwino mafunsidwe katundu ndi bata.
Panthawi imodzimodziyo, tiyeneranso kuganizira za kukhazikika kwa waya ndi ntchito zogulitsa pambuyo pogulitsa. Sankhani mtundu wa waya wokhala ndi mbiri yabwino komanso njira zodalirika zoperekera kuti muwonetsetse kuti sipadzakhala kusowa kwa waya pakuwotcherera. TANKII Alloy ili ndi mawaya osiyanasiyana owotcherera omwe ali ndi khalidwe lokhazikika, ngati muwafuna, chonde titumizireni.
Ndiye njira zopewera kugwiritsa ntchitoWaya wowotcherera wa MIG?
Choyambirira kunena ndikuti pankhani ya zida, ndikofunikira kusankha chowotcherera choyenera kuwotcherera MIG. Ntchito ya welder iyenera kukhala yokhazikika, ndipo zotulutsa zomwe zilipo komanso magetsi ziyenera kukhala zolondola. Panthawi imodzimodziyo, onetsetsani kuti chowotcherera chakhazikika bwino kuti chiteteze electrocution. Kayendetsedwe kabwino ka njira yodyetsera mawaya ndiye chinsinsi chowonetsetsa kuti kuwotcherera kwabwino. Njira yodyetsera mawaya iyenera kuyenda bwino ndipo kukakamiza kwa gudumu loyatsira mawaya kukhale kwapakati kuti mawaya asamayende bwino kapena kuti mawaya asaduke. Kuonjezera apo, chubu chodyera mawaya chiyenera kutsukidwa nthawi zonse kuti zisatseke.
Kusankha gasi woteteza ndikofunikiranso. Mipweya yodzitchinjiriza wamba ndi argon, helium kapena kusakaniza kwawo. Onetsetsani kuti chiyero cha gasi wotchinga chimakwaniritsa zofunikira kuti mutsimikizire mtundu wa kuwotcherera. Kusintha koyenera kwa kayendedwe ka mpweya woteteza ndikofunikira kwambiri. Nthawi zambiri, otaya mpweya ayenera kusintha malinga ndi kuwotcherera panopa, waya awiri ndi kuwotcherera udindo ndi zinthu zina. Komanso kuwotcherera ndondomeko, kuonetsetsa chitetezo mpweya wabwino kuzungulira malo kuwotcherera, kupewa kulowerera mpweya mu dziwe losungunuka.
Dziwani kuti nthawi zambiri timasankha waya woyenerera wa MIG malinga ndi zofunikira, makulidwe ndi kuwotcherera pazinthu zoyambira. M'mimba mwake, kapangidwe kake ndi makina amakina a waya wowotcherera ayenera kufanana ndi zinthu zoyambira. Tisanayambe kugwiritsa ntchito waya wowotchera, tiyang'ane mtundu wa pamwamba, ndikuyeretsa ngati pali dzimbiri ndi mafuta. Sinthani kutalika kwa waya wowotcherera. Nthawi zambiri, kutalika kwa waya kumakhala pafupifupi nthawi 10 kukula kwa waya ndikoyenera. Kutambasula kutalika kwautali kwambiri kungayambitse kukana kochulukira, kotero kuti kutenthedwa kwa waya, kumakhudza mtundu wa kuwotcherera.
Kuphatikiza apo, malo osiyanasiyana owotcherera ali ndi zofunika zosiyanasiyana pakuwotcherera. Mu kuwotcherera lathyathyathya, kuwotcherera ofukula, kuwotcherera yopingasa ndi kumbuyo kuwotcherera malo kuwotcherera, ayenera kusintha magawo kuwotcherera ndi njira ntchito kuonetsetsa kuwotcherera khalidwe. Pakuwotcherera zinthu zina monga mbale zokhuthala kapena chitsulo chokwera kaboni, kutenthetsa kungafunike kupewa kusweka. Panthawi imodzimodziyo, kutentha kwa interlayer kuyenera kuyendetsedwa kuti kusakhale kokwera kwambiri kapena kutsika kwambiri. Panthawi yowotcherera, slag ndi spatter pamwamba pa weld ziyenera kutsukidwa munthawi yake kuti zitsimikizire mawonekedwe a weld komanso kupita patsogolo kosalala kwa kuwotcherera kotsatira.
Nthawi yotumiza: Sep-02-2024