Welded pipeinowanzokamurwa kuita yakatwasuka musono welded pombi uye spiral welded pombi marudzi maviri.

Welding process

Kubva pakuita welding, Welding nzira ye spiral welded pombi uye yakatwasuka musono seam simbi pombi inowirirana, asi iyo yakatwasuka musono welded pombi ichave ine yakawanda ye-t-yakaita weld, saka mukana wekukanganisa weld unovandudzwa zvakanyanya, uye t-shaped seam welding residual stress yakakura, kushushikana kwesimbi weld kunowanzova munzira nhatu kunowedzera mukana wekutsemuka.Uye, maererano nemirairo yearc welding process, weld imwe neimwe ichava nearc uye arc. mukati, asi imwe neimwe yakatwasuka musono welded pombi kana weld girth, haigone kusangana nemamiriro ezvinhu, nekudaro panogona kunge paine zvakawanda pa arc welding defects.

Simba maitiro

Kana kudzvinyirirwa mupombi kutsungirira, kazhinji mbiri huru kushushikana pamadziro, kuti radial uye axial kushushikana kushushikanaδ.Synthetic weld stressδ,kupiα ndiyo helix angle ye spiral weld pipe.Spiral welded seam degree helix angle inowanzoita so synthetic, uye spiral weld Longitudinal stress ndiyo yakanyanya kushushikana.Pasi pesimba rimwechete rekushanda, spiral pombi yedhayamita imwechete pane iyo Longitudinal madziro ukobvu inogona kuderedzwa.

Hydrostatic kuputika simba

Neyakakodzera bvunzo bvunzo yekuona iyo spiral welded pombi uye Longitudinal goho kudzvanywa uye kuputika kudzvinyirira kuyerwa uye theoretical values..mechi, kutsauka kuri pedyo.Asi kungave kushushikana kwegoho kana kuputika kudzvanywa, zvaive zvakaderera pane Longitudinal spiral welded.Burst test inoratidzawo kuti chiyero che deformation ring spiral welded pombi inoputika Longitudinal yakakura kudarika muromo.Saka zvakasimbisa kuti spiral welded epurasitiki deformation inokwanisa kupfuura Longitudinal, muromo unoputika kazhinji unongovharirwa pagomba, uko kuri kuwedzera kwespiral weld kubvarura kubva pakusunga kwakasimba kwakakodzera.

Kuoma uye kuneta simba

Maitiro ekugadzirwa kwepombi ndeye dhayamita yakakura uye yakasimba simba.Nekuwedzera kwedhayamita yepombi uye giredhi resimbi rinowedzera, iyo yakakura ductile fracture tip inotsiga yekuwedzera maitiro.Kunyangwe spiral welded pombi uye yakatwasuka seam welded pombi ine mwero wakafanana, spiral welded pombi ine yakanyanya kusimba kusimba.Mapaipi ekufambisa nekuda kwehuwandu hwekuchinja mukushanda chaiko, pombi inoiswa pasi peiyo random alternating load effect.