Welders vanoshandisa MIG welding mumaindasitiri mazhinji - kugadzira, kugadzira, kuvaka ngarava uye njanji kutaura zvishoma. Kunyange chiri chiitiko chakajairika, chinoda kutarisisa kune zvakadzama, uye zvinobatsira kuziva mamwe mazwi akakosha ane chekuita nawo. Sezvakaita chero maitiro, zviri nani kunzwisisa, zviri nani mhedzisiro.
Kuchengeta shiri
Kuturikidzana kwewaya yewelding mumavhiri edhiraivha ewaya yekudyisa. Izvi zvinowanzoitika kana waya isina nzira yekudyisa yakatsetseka nekuda kwekuchekwa kwe liner kupfupika, saizi isiriyo liner kana tipi iri kushandiswa, kana zvisizvo zvigadziriso zvedhiraivha. Gadzirisa nyaya iyi nekuchekerera liner nemazvo uye nekuona kuti nzira yekudyisa yewaya yakatsetseka uye yakatwasuka sezvinobvira.
Burnback
Inoitika kana waya inonyungudika mukati metipi yekusangana isati yasvika kune workpiece. Inobva kune isiriyo yekubata-tip-to-basa kure (CTWD) - chinhambwe pakati pekupedzisira kwechipimo uye base simbi - kana yakanyanyisa-slow waya feed speed (WFS). Inogonawo kukonzerwa ne liner yakachekwa zvisizvo uye parameters isiriyo. Gadzirisa dambudziko nekuwedzera WFS, kugadzirisa CTWD, kucheka liner zvinoenderana nekurudziro yemugadziri uye kugadzirisa weld paramita.
Deposition rate
Zvinoreva kuti yakawanda sei simbi yekuzadza inoiswa mujoini yeweld pane imwe nguva yakatarwa, yakayerwa mumapaundi kana makirogiramu paawa (lbs/hr kana kg/hr).
Discontinuity
Kukanganisa muchimiro che weld iyo isingakonzere njodzi yekukundikana. Iyo yakasiyana kubva kune weld defect iyo inogona kukanganisa kuvimbika kweweld kamwe mubasa.
Duty cycle
Zvinoreva chikamu chenguva mumaminitsi gumi pfuti inogona kushandiswa pane imwe amperage (arc-on time) pasina kupisa zvakanyanya kubata kana kupisa. Kutenderera kwepfuti kunokanganiswa nerudzi rwekudzivirira gasi riri kushandiswa pakunama. Semuenzaniso, pfuti yeMIG inogona kuverengerwa pa 100% duty cycle ne 100% CO2 inodzivirira gasi, zvichireva kuti inogona weld yose maminitsi gumi pasina nyaya; kana kuti inogona kuva nepfuti chiyero che 60% yebasa rekutenderera nemagasi akasanganiswa.
Electrode extension
Chinhambwe chewaya yewelding inotambanuka kubva kumagumo kwetipi yekubata kusvika panonyungudika waya. Sezvo kuwedzera kwe electrode kunowedzera, amperage inoderera, iyo inoderedza kupinda mukati. Uyewo inowanzonzi tip-to-workpiece kureba.
Nzvimbo yakakanganiswa nekupisa
Inowanzo kunzi HAZ, ndicho chikamu cheiyo base material yakatenderedza weld iyo isati yanyunguduka asi yakachinja zvivakwa zvayo pa microstructure level nekuda kwekupinzwa kwekupisa. Kutsemuka kunogona kuitika pano.
Kusanganiswa kusina kukwana
Iyo inonziwo kushaikwa kwefusion, inoitika kana weld ikatadza kusanganisa zvachose nebase material kana yapfuura weld pass mumulti-pass welding. Kazhinji, ndiwo mhedzisiro yekukanganisa MIG pfuti angle.
Porosity
Kuramba kwakaita gasi kunoitika kana gasi rikavharirwa muweld pakuomarara kwedziva rakanyungudutswa. Kazhinji kazhinji inokonzereswa nekushomeka kwekudzivirira gasi kufukidzwa kana kusvibiswa kwezvinhu.
Weld kupinda
Zvinoreva kureba kwemaweld fuse pazasi pepamusoro pechigadziko. Incomplete weld kupinza kunoitika kana weld isingazadze zvachose mudzi wejoinhi.
Nguva yekutumira: Jun-03-2017
