Kunyudza arc yakanyudzwa mumvura (SAW), sezvinoreva zita racho, kunoitwa pasi pechidzitiro chekudzivirira kana jira reflux. Sezvo arc ichigara yakafukidzwa nehukobvu hweflux, inobvisa chero mwaranzi kubva kuma arches akafumurwa pamwe nekudiwa kwe welding screens. Nemhando mbiri dzemaitiro, otomatiki uye semi-automatic, ndeimwe yenzira dze welding dzinoshandiswa zvakanyanya muindasitiri ye process. Wenzhou Tianyu Electronic Co., Ltd., imwe yevatengesi vane mukurumbira ve sub-arc welding wire muChina, inoratidza musimboti uye mashandisirwo e sub-arc welding. Ngationei kuti ndeapi:
Maitiro:
Kufanana nekuwelda kweMIG, SAW inoshandisawo nzira yekugadzira arc pakati pe weld joint ne continuous bare electrode wire. Dura rakatetepa re flux ne slag zvinoshandiswa kugadzira musanganiswa wegesi unodzivirira uye kuwedzera alloys inodiwa mu weld pool, zvichiteerana. Sezvo weld ichienderera mberi, electrode wire inoburitswa nechiyero chimwe chete chekushandiswa uye flux yakawandisa inosvetwa kuburikidza ne vacuum system kuti idzokororwe. Kunze kwekudzivirira mwaranzi, flux layers inobatsirawo zvikuru mukudzivirira kurasikirwa nekupisa. Kushanda zvakanaka kwekupisa kwemaitiro aya, kunosvika 60%, kunokonzerwa ne flux layers idzi. Uyewo maitiro eSAW haana kupararira zvachose uye haadi chero nzira yekubvisa fume.
Maitiro ekushanda:
Kufanana nedzimwe nzira dzekuwelda, mhando yemajoini ekuwelda maererano nekudzika kwekupinda, chimiro uye kuumbwa kwemakemikari esimbi yekuwelda inoiswa muweld inowanzo dzorwa nematanho ekuwelda akadai semagetsi, arc voltage, weld wire feed rate, uye weld travel speed. Chimwe chezvakaipira (zvechokwadi nzira dziripo dzekuzvigadzirisa) ndechekuti welder haakwanise kutarisa dziva rekuwelda saka mhando yetsime inoenderana nematanho ekushanda.
Maitiro ekugadzirisa:
Sezvambotaurwa, zvinongoitwa chete nematanho ekuita, uye welder inogadzirisa weld joint. Semuenzaniso, mukuita otomatiki, saizi yewaya uye flux yaishandiswa yakakodzera mhando yakajairika, ukobvu hwechinhu, uye saizi yebasa zvine basa rakakosha pakusarudza mwero wekuisa uye maumbirwo emabead.
Waya:
Zvichienderana nezvinodiwa nehuwandu hwekuisa uye kumhanya kwekufamba, waya dzinotevera dzinogona kusarudzwa
·Waya mbiri
·Waya dzakawanda
·Waya yeTubular
·Kuwedzera upfu hwesimbi
·Waya imwe chete ine kuwedzera kunopisa
·Waya imwe chete ine kuwedzera kunotonhora
Kuchinja-chinja:
Musanganiswa wema oxides ane zvinhu zvakasiyana-siyana zvakaita se manganese, titanium, calcium, magnesium, silicon, aluminium, uye calcium fluoride unoshandiswa zvakanyanya se flux mu SAW. Kazhinji, musanganiswa uyu unosarudzwa zvekuti unopa hunhu hwemakanika hwaunoda kana wakabatana ne welding wire. Zvinofanirawo kucherechedzwa kuti kuumbwa kwema fluxes aya kunoita basa rakakosha mu operating arc voltage uye current parameters. Zvichienderana nezvinodiwa zve welding, mhando mbiri dze fluxes, bonded uye fused dzinoshandiswa mukuita uku.
Mashandisirwo:
Nzira yega yega yekunamira ine mashandisirwo ayo, ayo anowanzo pindirana nekuda kwehukuru hwekushandiswa kwayo uye zvinodiwa zvemhando yepamusoro.
Kunyangwe SAW ichigona kushandiswa zvakanaka pakubatana kwemagumbo (longitudinal necircumferential) uye mafillet joints, haina zvipingamupinyi zvidiki. Nekuda kwekuyerera kwedziva re weld, slag iri mumamiriro ekunyunguduka uye layer yakasununguka ye flux, magumbo joints anogara achiitwa ari panzvimbo yakati sandara, uye kune rumwe rutivi, mafillet joints anoitwa munzvimbo dzese - dzakati sandara, dzakatwasuka, uye dzakamira.
Zvinofanira kucherechedzwa kuti chero bedzi nzira dzakakodzera uye kusarudzwa kwezviyero zvekugadzirira majoini zvichiitwa, SAW inogona kuitwa zvinobudirira kune chero chinhu chakakora.
Inogona kushandiswa zvakanaka pakugadzira simbi dzekabhoni, simbi dzisina ngura uye simbi dzisina alloy yakawanda pamwe chete nesimbi dzisina feri nezvinhu zvishoma, chero bedzi ASME code ichiratidza kuti waya neflux zvinoshandiswa.
SAW inowana nzvimbo yechigarire mumaindasitiri emuchina unorema uye maindasitiri ekuvaka ngarava dzezvikamu zvakakura zvekunamira, mapaipi makuru, uye ngarava dzekugadzira.
Nekushandiswa kwakanyanya kwewaya dzemagetsi uye mikana yekuzviitira otomatiki iri nyore, SAW inogara iri imwe yenzira dzinonyanya kutsvakwa dzekubatanidza simbi muindasitiri yekugadzira.
Nguva yekutumira: Zvita-23-2022