Dry elongation
Kuyerera kwegasi L=[(10-12)d] L/min
Hurefu hwewaya inobuditsa conductive nozzle ndiko kureba kwakaoma. The general empirical formula is 10-15 times the dhayamita yewaya L = (10-15) d. Kana mwero wacho wakakura, unoti kurei zvishoma. Iyo yakatarwa idiki, idiki zvishoma.
Dry stretching too long: Kana kureba kwewaya yewelding kunowedzera kureba, kuwedzera kupisa kwekupisa kwewaya yewelding, kukurumidza kunyunguduka kwewaya yewelding, izvo zvinogona kuita kuti waya welding isangane muzvikamu, kupfachuka, kunyunguduka kwakadzika, uye kusagadzikana kwekupisa kwearc. Panguva imwecheteyo, iyo gasi yekudzivirira maitiro haina kunaka.
Dry stretch too short: zviri nyore kupisa conductive nozzle. Panguva imwecheteyo, iyo conductive nozzle iri nyore kuvhara waya kana ichipisa. Splashes inowanzovhara muromo uye inonyunguduka zvakadzika.
Tafura 1 Kufananidza hukama pakati pekurebesa kwazvino uye kwakaoma
| Welding ikozvino (A) | ≤200A | 200-350A | 350-500A |
| Dry elongation (mm) | 10-15mm | 15-20mm | 20-25mm |
Kuyerera kwegasi
Kuyerera kwegasi L=[(10-12)d] L/min
Yakakura zvakanyanya: inoburitsa mhirizhonga, ichikonzera kupindira kwemhepo uye pores, kunyanya kune zvinhu zvinonzwa gasi (senge aruminiyamu alloys, magnesium alloys, nezvimwewo, izvo zvinowanzova mukati mapores)
Kunyanya kudiki: kuchengetedzwa kwegasi kwakashata (unogona kureva mamiriro ekugumira, izvo zvinoreva kuti hapana gasi rekudzivirira, uye ma pores akaita semuzinga anowanzo kuoneka).
Mhepo inomhanya haina kukanganiswa kana ≤2m/s.
Matanho anofanirwa kutorwa kana kumhanya kwemhepo kuri ≥2m/s.
① Wedzera kuyerera kwegasi.
② Tora matanho anodzivirira mhepo.
Ongorora: Kana kubuda kwemhepo kuchiitika, maburi emhepo anozoonekwa pane weld. Mhepo yekudonha kwemhepo inofanirwa kubatwa uye haigone kuwedzerwa nekuwedzera chiyero chekuyerera. Iko hakuna nzira yekugadzirisa maburi emhepo pasina kuabvisa. Inozongowedzera welded. vakawanda.
Arc force
Kana kukora kwendiro kwakasiyana, zvinzvimbo zvakasiyana, zvirevo zvakasiyana, uye waya dzakasiyana dzewelding, mauto akasiyana arc anosarudzwa.
Yakakurisa: arc yakaoma, kupfachuka kukuru.
Kunyanya kudiki: nyoro arc, diki kuputika.
Kumanikidza simba
Yakanyanya kusimba: Waya yewelding yakaremara, waya yekudyisa haina kugadzikana, uye zviri nyore kukonzera waya jamu uye kuwedzera kupfachuka.
Kusasununguka: Waya yewelding inotsvedza, waya inotumirwa zvishoma nezvishoma, welding haina kugadzikana, uye zvinokonzeresa kupfachuka.
Ikozvino, voltage
Empirical formula yehukama pakati pezvino uye voltage yegasi-inodzivirira welding: U=14+0.05I±2
Iko welding ikozvino inofanira kusarudzwa nenzira kwayo zvichienderana nehupamhi hwezvinhu zvepasi, fomu yejojo uye dhayamita yewaya. Munguva pfupi yekushandura kwedunhu, edza kusarudza diki ikozvino paunenge uine chokwadi chekupinda, nekuti kana ikozvino yakakura zvakanyanya, zviri nyore kuita kuti dziva rekunyungudutsa rikunguruke, kwete chete rinopfachuka rakakura, asi kuumba zvakare kwakashata.
Iyo welding voltage inofanirwa kuumba kurongeka kwakanaka neazvino. Iyo welding voltage yakakwira zvakanyanya kana yakadzikira, izvo zvinokonzeresa kuputika. Iyo welding voltage inofanirwa kuwedzera nekuwedzera kweiyo welding ikozvino uye inofanira kuderera nekuderera kweiyo welding ikozvino. Iyo yakakwana welding voltage kazhinji iri pakati pe1-2V, saka iyo welding voltage inofanirwa kunyatsogadziriswa.
Ikozvino yakakura kwazvo: kureba kwearc ipfupi, kupuruzira kwakakura, kunzwa kweruoko rwepamusoro, kureba kwasara kwakakura, uye mativi maviri haana kusanganiswa zvakanaka.
Mhepo yakakwira zvakanyanya: iyo arc yakareba, kuputika kudiki kudiki, ikozvino haina kugadzikana, yakasara kureba idiki, iyo welding yakafara, uye arc inopiswa nyore.
Mhedzisiro yekukurumidza welding kumhanya pawelding
Iyo welding yekumhanyisa ine kukosha kwakakosha pakunaka kwemukati uye kutaridzika kweiyo weld. Kana ikozvino voltage inoramba iripo:
Sipidhi yewelding inokurumidza: kunyungudika, kunyunguduka kwehupamhi, uye kureba kwasara kunodzikiswa, kuita convex kana hump welding bead, uye zvigunwe zviri kuruma nyama. Kana iyo welding yekumhanyisa ichimhanya zvakanyanya, iyo gasi yekudzivirira maitiro ichakuvadzwa uye pores anogadzirwa nyore.
Panguva imwecheteyo, kutonhora kwekumhanya kwesimbi yewelding ichakwidziridzwa zvakafanira, nekudaro ichideredza plastiki uye kuoma kwesimbi yewelding. Ichaitawo kuti mupendero uoneke pakati pekushongedza, zvichiita kuti kuumbwa kusina kunaka.
Iko kumhanya kwewelding kunononoka: dziva rakanyungudutswa rinova rakakura, bhidhiro yewelding inowedzera, uye zvigunwe zvewelding zviri kufashukira. Iyo gasi mudziva rakanyungudutswa rinobuda nyore nyore nekuda kwekunonoka kwewelding. Chimiro chesimbi che weld chakakora kana kupiswa nekuda kwekupisa.
Paunosarudza welding parameters, zvinotevera zvinofanirwa kuteverwa: iyo weld yakanaka pakuonekwa uye haina zvikanganiso zvakadai sekupisa kuburikidza, undercuts, pores, kuputika, nezvimwewo. Kunyunguduka kwakadzika kunodzorwa mukati mehutano hwakakodzera. Iyo welding process yakagadzikana uye splash idiki. Pakanzwika kushinyira panguva yewelding. Panguva imwecheteyo, chibereko chepamusoro chinofanira kuwanikwa.
Nguva yekutumira: Mar-10-2025