1 Muchidimbu
Ngarava huru dzemidziyo dzine hunhu hwakaita sehurefu hukuru, hukuru hwemidziyo, kumhanya kukuru, uye kuvhurika kwakakura, zvichikonzera kushushikana kwakanyanya pakati penzvimbo yehull chimiro. Nokudaro, hukuru-hukuru-hukuru-simba zvinhu zvesimbi zvinowanzoshandiswa mukugadzira.
Senzira yepamusoro-yepamusoro-soro, imwe-waya yemagetsi gasi vertical welding (EGW) inoshandiswa zvakanyanya. Nekudaro, kazhinji iyo yakakura inoshanda yeplate ukobvu inogona chete kusvika 32 ~ 33mm, uye haigone kushandiswa pamahwendefa akakora ataurwa pamusoro apa;
Ukobvu hweplate hunoshanda hwembiri-waya EGW nzira inowanzosvika 70mm. Nekudaro, nekuti iyo welding yekupisa yekuisa yakakura kwazvo, kuve nechokwadi chekuti mashandiro ejoini yakashongedzwa inosangana nezvinodiwa, ndiro yesimbi inokodzera kupisa kwakanyanya kwekuisa welding inofanira kushandiswa.
Naizvozvo, pasina kushandisa simbi yakashongedzwa mahwendefa anogona kuenderana neyakakura kupisa kupinza, vertical butt welding yemahwendefa mahombe uye akakora anogona chete kushandisa FCAW yakawanda-layer multi-pass welding, uye kugona kwewelding kwakaderera.
Iyi nzira ndeye FCAW + EGW yakasanganiswa welding process nzira yakagadziridzwa zvichibva pane zviri pamusoro hunhu izvo zvisingagoni kungoisa EGW kune yakakora mahwendefa mahombe, kupa kutamba kwakazara kune yakanakisa kugona kwayo, asiwo kuchinjika kune hunhu hwemahwendefa chaiwo esimbi. . Ndiko kuti, inobudirira yakasanganiswa welding nzira inoshandisa FCAW single-sided welding pane yemaitiro epamusoro kuti iwane kuseri kwekugadzira, uyezve inoita EGW welding pane isiri-structural surface.
Xinfa welding midziyo ine hunhu hwemhando yepamusoro uye mutengo wakaderera. Kuti uwane ruzivo, ndapota shanya:Welding & Cutting Manufacturers - China Welding & Cutting Factory & Suppliers (xinfatools.com)
2 Mapoinzi akakosha eFCAW + EGW akasanganiswa welding nzira
(1) Inoshanda ndiro ukobvu
34 ~ 80mm: Ndiko kuti, muganho wepasi ndiwo muganho wepamusoro weiyo inoshanda plate ukobvu kune monofilament EGW; kana iri yekumusoro inogumira, parizvino ngarava hombe yemidziyo inoshandisa hombe-yakakora marata esimbi emukati medivi uye epamusoro goko strake mahwendefa. Tichifunga kuti kuwanda kwemahwendefa esimbi ezvigadzirwa zvakasiyana zvakasiyana, zvakatemwa kuva 80mm.
(2) Kuparadzana ukobvu
Nheyo yekugovera welding ukobvu ndeyekupa kutamba kwakazara kune yakanyanya kunaka mukana weEGW welding; panguva imwe chete, tinofanira kufunga kuti uwandu nomoto akaisa simbi pakati nzira mbiri haafaniri kusiyana zvikuru, zvikasadaro zvichava zvakaoma kudzora nomoto deformation.
(3) Yakasanganiswa welding nzira yakabatana fomu dhizaini
① Groove angle: Kuti udzivise hupamhi hwegorofu kuti risanyanya kukura padivi reFCAW, goko idiki zvakafanira pane yakajairika FCAW single-sided welding groove, inova Yakasiyana makubvu eplate inoda makona akasiyana. Kana kukora kwendiro kuri 30 ~ 50mm, iri Y±5 °, uye kana hobvu yeplate iri 51 ~ 80mm, iri Z±5 °.
② Root gap: Inoda kuchinjika kune zvinodiwa nemaitiro ezvese nzira dzewelding panguva imwe chete, kureva, G ± 2mm.
③Inoshanda gasket fomu: Yakajairika triangular gaskets haigone kusangana nepamusoro pejoin fomu zvinodiwa nekuda kwematambudziko emakona. Iyi yakasanganiswa welding nzira inoda kushandiswa kwemaround bar gaskets. Saizi yedhayamita inoda kusarudzwa zvichibva pane chaiyo gap kukosha kwegungano (ona Mufananidzo 1).
(4) Basic pfungwa dzekuvaka welding
① Welding kudzidziswa. Vashandi vanofanirwa kuita imwe nguva yekudzidziswa. Kunyange vashandi vane ruzivo muEGW (SG-2 nzira) welding yezvakajairwa makobvu simbi mahwendefa vanofanira kudzidziswa, nekuti mafambisirwo ekushanda kwewaya yewelding mudziva rakanyungudutswa akasiyana kana welding mahwendefa matete uye hombe mahwendefa.
②Kuguma kuona. Kuedza kusingaparadzi (RT kana UT) kunofanira kushandiswa pakupera kweweld uye arc stop chikamu chekutarisa kukanganisa uye kusimbisa ukuru hwekuremara. Gouging inoshandiswa kubvisa kukanganisa, uye FCAW kana SMAW welding nzira dzinoshandiswa pakugadzirisa zvakare.
③Arc inorova ndiro. Iyo arc inorova ndiro kureba kunofanirwa kunge kuri 50mm. Iyo arc striking plate uye base material ine hukobvu hwakafanana uye ine groove yakafanana. ④ Panguva yekuputika, mhepo inokonzeresa kusagadzikana kwegasi rinodzivirira, zvichikonzera kukanganisa kwepore mu weld, uye kupindira kwenitrogen mumhepo kunokonzeresa kuita kwakashata kwemajoini, saka matanho ekudzivirira emhepo anodiwa anofanira kutorwa.
3 Maitiro ekuedzwa uye kubvumidzwa
(1) Kuedza zvinhu
Iwo mahwendefa ekuyedza uye welding zvinhu zvinoratidzwa muTafura 1
(2) Welding parameters
Nzvimbo yewelding ndeye 3G, uye iyo chaiyo welding paramita inoratidzwa muTafura 2.
(3) Mhinduro dzebvunzo
Muedzo uyu wakaitwa zvinoenderana neLR neCCS ngarava mirau uye pasi pekutariswa kwesaiti nemuongorori. Migumisiro yacho ndeiyi inotevera.
NDT uye mhedzisiro: PT mhedzisiro ndeyekuti mipendero yemberi uye kumashure welds yakashambidzika, iyo yepamusoro inotsvedza, uye hapana chakakanganisika chepamusoro; UT mhedzisiro ndeyekuti ese mawelds anokodzera mushure mekuedzwa kwe ultrasonic (kusangana ISO 5817 level B); MT mhedzisiro ndeyekuti kumberi nekumashure welds ndeye magineti particle flaw yekuona Mushure mekuongorora, pakanga pasina kukanganiswa kwepamusoro welding.
(4) Bvuma mhedziso
Mushure meiyo NDT uye yekuyedzwa kwezvivakwa zvemuchina yakaitwa pabvunzo dzakasungirirwa majoini, mhedzisiro yakasangana nezvinodiwa zveiyo nharaunda nharaunda yakatarwa uye yakapasa kubvumidzwa kwemaitiro.
(5) Kubudirira kwekuenzanisa
Kutora 1m kureba weld yeimwe ndiro semuenzaniso, iyo yelding nguva inodiwa kune kaviri-sided FCAW welding ndeye 250 maminetsi; apo nzira yakasanganiswa yekugadzira yakashandiswa, nguva yekugadzira inodiwa yeEGW ndeye 18 maminitsi, uye nguva yekuvhara inodiwa kuFCAW ndeye 125 maminitsi, uye nguva yose yemoto ndeye 143 maminitsi. Iyo yakasanganiswa yewelding nzira inochengetedza ingangoita 43% yenguva yewelding kana ichienzaniswa neyekutanga-mativi maviri FCAW welding.
4 Mhedziso
Iyo FCAW + EGW yakasanganiswa nzira yewelding yakagadziridzwa mukuyedza haingotore mukana wakakwana wepamusoro weEGW welding, asi zvakare inoenderana neazvino maitiro emaplate esimbi. Iyo itsva welding process tekinoroji ine yakakwira welding kunyatsoshanda uye kugona kwakanyanya.
Seyakagadziridza welding process tekinoroji, kugadzirwa kwayo kwegorofu, kurongeka kwegungano, kusarudzwa kwezvinhu, welding paramita, nezvimwe zvakakosha uye zvinofanirwa kudzorwa zvakanyanya panguva yekushandisa.
Nguva yekutumira: Feb-22-2024
