Mawaya a MIG amagwira ntchito yofunika kwambiri pakuwotcherera kwamakono. Kuti tipeze zotsatira zabwino kwambiri pakuwotcherera, tiyenera kudziwa momwe tingasankhire ndikugwiritsa ntchito mawaya a MIG moyenera.
Kodi mungasankhe bwanji waya wa MIG?
Choyamba, tiyenera kutengera zinthu zoyambira, mitundu yosiyanasiyana ya zinthu zoyambira imatsimikiza komwe waya amasankhidwa. Zinthu zoyambira zomwe zimagwiritsidwa ntchito kwambiri ndi chitsulo cha kaboni, chitsulo chosapanga dzimbiri, aluminiyamu ndi zina zotero. Pa chitsulo cha kaboni, kusankha kwawaya wowotchereraziyenera kutengera mphamvu zake. Chitsulo cha kaboni cholimba chotsika chimatha kusankha waya wamba wowotcherera wa chitsulo cha kaboni, pomwe chitsulo cha kaboni cholimba kwambiri chimafuna waya wamphamvu kwambiri kuti zitsimikizire kuti zikugwira ntchito bwino pambuyo powotcherera. Pali mitundu yambiri ya chitsulo chosapanga dzimbiri, kuphatikizapo chitsulo chosapanga dzimbiri cha austenitic, chitsulo chosapanga dzimbiri cha ferritic, chitsulo chosapanga dzimbiri cha martensitic ndi zina zotero. Mtundu uliwonse wa chitsulo chosapanga dzimbiri uli ndi kapangidwe kake ka mankhwala ndi mawonekedwe ake, kotero muyenera kusankha waya wosapanga dzimbiri kuti ugwirizane, kuti muwonetsetse kuti kukana dzimbiri ndi mawonekedwe amakina a weld zikugwirizana ndi zinthu zomwe zili mkati mwake.
Zachidziwikire, zofunikira pakugwira ntchito yowotcherera zomwe tili nazo, mphamvu ya weld ndi imodzi mwazofunikira kwambiri pakusankha waya. Ngati weld ikufunika kupirira katundu wambiri, ndiye kuti waya wamphamvu kwambiri iyenera kusankhidwa. Izi zimatsimikizira kuti cholumikizira chowotcherera sichidzasweka panthawi yogwiritsa ntchito. Pakuwotcherera komwe kumafunika kukana dzimbiri, monga zida zogwirira ntchito zomwe zimagwiritsidwa ntchito m'malo ovuta monga makampani opanga mankhwala ndi nyanja, ndikofunikira kusankha mawaya owotcherera omwe ali ndi kukana dzimbiri koyenera. Ngati chogwirira ntchito chowotcherera chikufunika kukhala cholimba bwino kapena chogwira ntchito kutentha kochepa, muyeneranso kusankha mosamala waya woyenera kuti mukwaniritse zofunikira izi zapadera.
Chachiwiri, tifunika kudziwa kukula kwa waya. Kusankha waya m'mimba mwake ndi mphamvu yolumikizira, malo owetera, ndi makulidwe a zinthu zoyambira zimagwirizana kwambiri. Kawirikawiri, mphamvu yolumikizira yayikulu ndi mphamvu yolumikizira maziko imafuna kugwiritsa ntchito waya wokhuthala. Izi zili choncho chifukwa mawaya okhuthala amatha kupirira mafunde amphamvu komanso amapereka zitsulo zambiri kuti zitsimikizire mphamvu ya weld. Poyerekeza ndi welding yopyapyala, mawaya ang'onoang'ono nthawi zambiri amasankhidwa kuti achepetse kutentha komwe kumalowetsa ndikuletsa kuyaka ndi kusokonekera. M'malo osiyanasiyana owetera, ndikofunikiranso kusankha kukula koyenera kwa waya wolumikizira. Mwachitsanzo, pamalo owetera mmwamba, chifukwa cha zovuta zogwirira ntchito, kuti ntchito ikhale yosavuta ndikuwonetsetsa kuti weld ili bwino, muyenera kusankha waya woonda.
Kuphatikiza pa izi, tifunika kuphatikiza magawo a njira yolumikizira waya posankha waya, magawo osiyanasiyana a njira yolumikizira waya, monga mphamvu yolumikizira waya, magetsi, liwiro la waya, ndi zina zotero, zimakhudzanso kwambiri kusankha waya. Ziyenera kutengera magawo enieni a njira yolumikizira waya kuti waya athe kusintha malinga ndi magawo awa. Pankhani ya mphamvu yolumikizira waya komanso liwiro la waya, ndikofunikira kuonetsetsa kuti wayayo ikhoza kusungunuka mofanana ndikupanga weld yapamwamba kwambiri mu njira yolumikizira waya mwachangu. Ndikofunikira kusankha waya wolumikizira womwe uli ndi mawonekedwe abwino komanso kukhazikika.
Nthawi yomweyo, tiyeneranso kuganizira za kukhazikika kwa waya ndi ntchito yogulitsa pambuyo pogulitsa. Sankhani mtundu wa waya wokhala ndi mbiri yabwino komanso njira zodalirika zoperekera kuti muwonetsetse kuti sipadzakhala kusowa kwa waya panthawi yolumikiza. TANKII Alloy ili ndi mitundu yosiyanasiyana ya mawaya olumikizirana okhala ndi khalidwe lokhazikika, ngati mukufuna, chonde titumizireni uthenga.
Ndiye njira zodzitetezera zogwiritsira ntchito ndi ziti?Waya wowotcherera wa MIG?
Choyamba chomwe mungatchule ndi chakuti pankhani ya zida, ndikofunikira kusankha chowotcherera choyenera kuwotcherera MIG. Kagwiridwe ka ntchito ka wowotcherera kuyenera kukhala kokhazikika, ndipo mphamvu yotulutsa ndi magetsi ziyenera kukhala zolondola. Nthawi yomweyo, onetsetsani kuti chowotcherera chili bwino kuti magetsi asagwe. Kugwira ntchito kwabwinobwino kwa makina operekera waya ndiye chinsinsi chotsimikizira kuti waya ndi wabwino. Njira yoperekera waya iyenera kuyenda bwino ndipo kuthamanga kwa gudumu loperekera waya kuyenera kukhala kocheperako kuti waya isagwe kapena kutsetsereka kwa waya. Kuphatikiza apo, chubu choperekera waya chiyenera kutsukidwa nthawi zonse kuti chisatseke.
Kusankha mpweya woteteza ndikofunikiranso. Mpweya woteteza wamba ndi argon, helium kapena wosakaniza nawo. Onetsetsani kuti kuyera kwa mpweya woteteza kukukwaniritsa zofunikira kuti zitsimikizire kuti kuwotcherera kuli bwino. Kusintha koyenera kwa mpweya woteteza ndikofunikira kwambiri. Kawirikawiri, kuyenda kwa mpweya kuyenera kusinthidwa malinga ndi mphamvu yowotcherera, kukula kwa waya ndi malo owotcherera ndi zina. Kuphatikiza apo, njira yowotcherera, kuti zitsimikizire chitetezo chabwino cha mpweya kuzungulira malo owotcherera, kuti mpweya usalowe mu dziwe losungunuka.
Tiyenera kudziwa kuti nthawi zambiri timasankha waya woyenera wa MIG malinga ndi zinthu, makulidwe ndi zofunikira pakuwotcherera pa maziko. Kukula kwake, kapangidwe ka mankhwala, ndi mphamvu za makina a waya wowotcherera ziyenera kufanana ndi maziko. Tiyenera kuyang'ana ubwino wa pamwamba pa waya wowotcherera tisanagwiritse ntchito, ndikuyeretsa ngati pali dzimbiri ndi mafuta. Yang'anirani kutalika kwa waya wowotcherera. Nthawi zambiri, kutalika kwa waya kumakhala pafupifupi nthawi 10 kuposa kukula kwa waya komwe kuli koyenera. Kutambasula kutalika kwa nthawi yayitali kwambiri kumabweretsa kukana kwakukulu, kotero kuti wayayo ikutentha kwambiri, zomwe zimakhudza ubwino wa kuwotcherera.
Kuphatikiza apo, malo osiyanasiyana olumikizirana ali ndi zofunikira zosiyanasiyana pa njira yolumikizirana. Pakulumikiza kosalala, kulumikiza koyima, kulumikiza kopingasa ndi kulumikiza kumbuyo, ziyenera kusintha magawo a kulumikiza ndi njira zogwirira ntchito kuti zitsimikizire kuti kulumikiza kuli bwino. Pakulumikiza zinthu zina monga mbale zokhuthala kapena chitsulo cha kaboni wambiri, kutenthetsa kungafunike kuti kupewe kusweka. Nthawi yomweyo, kutentha kwa interlayer kuyenera kulamulidwa kuti kupewe kukwera kwambiri kapena kutsika kwambiri. Pakulumikiza, slag ndi madontho pamwamba pa kulumikiza ziyenera kutsukidwa nthawi yake kuti zitsimikizire mawonekedwe a kulumikiza komanso kupita patsogolo kosalala kwa kulumikiza pambuyo pake.
Nthawi yotumizira: Sep-02-2024
