Kana zvasvika kune MIG welding, zvakakosha kuti mawelder matsva atange nemabasiro ekuisa hwaro hwakasimba hwekubudirira. Maitiro acho anowanzo kuregerera, zvichiita kuti zvive nyore kudzidza pane TIG welding, semuenzaniso. Iyo inogona kupinza simbi zhinji uye, senzira inoramba ichidyiswa, inopa kukurumidza kukuru uye kushanda nesimba pane danda welding.
Pamwe chete nekudzidzira, kuziva rumwe ruzivo rwakakosha kunogona kubatsira vatsva vemoto kunzwisisa zviri nani iyo MIG welding process
Welding kuchengetedza
Iko kutarisisa kwekutanga kune mawelders matsva ndeyekuchengetedza welding. Izvo zvakakosha kuti uverenge uye uteedzere zvinyorwa zvese nemidziyo Manuals eMuridzi nekungwarira usati waisa, kushanda, kana kusevhisa welding michina. Welders anofanirwa kupfeka dziviriro yeziso chaiyo kudzivirira arc flash kutsva uye sparks. Nguva dzose pfeka magirazi ekuchengetedza uye helmete yewelding yakaiswa kune yakakodzera mumvuri mwero. Chipfeko chakakodzera chekuzvidzivirira nacho chakakoshawo kuchengetedza ganda kubva kumagetsi uye kupisa. Izvi zvinosanganisira:
· Dehwe shangu kana bhutsu.
· Dehwe kana moto-inodzivirira welding magurovhosi
· Murazvo-resistant welding bhachi kana welding maoko
Kufefetera kwakakwana zvakare chinhu chakakosha chekuchengetedza. Vacheri vanofanira kugara vachiisa musoro wavo kubva pane weld plume uye kuve nechokwadi chekuti nzvimbo yavari kunyorera ine mhepo yakakwana. Imwe mhando yekubvisa utsi inogona kudiwa. Fume extraction pfuti dzinobvisa exhaust paarc dzinobatsirawo, uye dzinoshanda zvakanyanya zvichienzaniswa nefloor or ceiling capture.
Welding transfer modes
Zvichienderana nehwaro zvinhu uye kudzivirira gasi, welders anogona weld mune akasiyana welding ekuchinjisa modes.
Short circuit yakajairika kune zvitete zvinhu uye inoshanda pazasi welding voltage uye waya yekudyisa kumhanya, saka inononoka pane mamwe maitiro. Iyo inowanzo gadzira spatter inoda post-weld kucheneswa, asi zvakazara, inzira iri nyore kushandisa.
Globular transfer inoshanda nepamusoro waya yekudyisa kumhanya uye welding voltages pane short circuit uye inoshandira welding ine flux-cored wire ine 100% carbon dioxide (CO2) (ona zvakadzama pa CO2 muchikamu chinotevera). Inogona kushandiswa pa1/8-inch uye yakakora base zvinhu. Kufanana nepfupi-circuit MIG welding, iyi modhi inogadzira spatter, asi inokurumidza kukurumidza maitiro.
Spray kutumira kunopa yakatsetseka, yakagadzikana arc, ichiita kuti ifadze kune akawanda mawelders. Inoshanda pakakwirira welding amperages uye voltage, saka inokurumidza uye inogadzira. Inoshanda zvakanaka pazvinhu zvepasi izvo zviri 1/8 inch kana kupfuura.
Welding shielding gasi
Pamusoro pekuchengetedza dziva reweld kubva mumhepo, rudzi rwekudzivirira gasi rinoshandiswa kuMIG welding rinokanganisa kuita. Weld kupinda, arc kugadzikana uye michina zvivakwa zvinoenderana nekudzivirira gasi.
Yakatwasuka carbon dioxide (CO2) inopa yakadzika weld kupinda asi ine isina kugadzikana arc uye yakawanda spatter. Inoshandiswa kupfupi wedunhu MIG welding. Kuwedzera argon kune CO2 musanganiswa unobvumira kushandiswa kwekupfapfaidza kutamisa kune yakakwirira goho. Chiyero che75% argon uye 25% chakajairika.
Kupfuura zvekutanga
Pamwe chete nekudzidzira, kuziva rumwe ruzivo rwakakosha kunogona kubatsira vatsva vemoto kunzwisisa zviri nani iyo MIG welding process. Izvo zvakakoshawo kujairana nemidziyo, kusanganisira MIG welding pfuti uye welding liner. Kunzwisisa nzira yekusarudza nekuchengetedza iyi midziyo inogona kuenda kure kune kumisikidza yakanaka welding kuita, kunaka uye kugadzira.
Nguva yekutumira: Kubvumbi-04-2021
