Kukuvadza kwekunyanyisa weld seam kureba kwe welded pombi

Nekukurumidza kusimudzira kwemhando yepamusoro tambo inoenderera kugadzirwa uye kufambira mberi kwewelding uye yekuongorora tekinoroji, mhando yewelds inoramba ichivandudza, uye kune akawanda uye akawanda marudzi emapombi akaiswa, ayo akatsiva mapaipi esimbi asina musono mukuwedzera. minda.Mukugadzira nzira ye welded pombi, iyo weld reinforcement inyaya yakakosha.Kuwedzeredza weld kusimbiswa kwepombi yakasungwa kune njodzi dzakawanda, sezvinotevera:

Stress corrosion cracks zviri nyore kuumba pachigunwe cheweld.Kushushikana kwekumanikidzwa kwemajoini emabutt kunonyanya kukonzerwa nekusimbisa weld.Kune weld yemajoini emabutt, kushushikana kwechigunwe cheweld kwakakura.Kunyanya kunetseka kunoenderana nekusimbisa weld h , Chigunwe cheweld chaisanganisira angle θ uye kona yekona r, kuwedzera kwekusimbisa weld h, kuwedzera kwe θ angle, uye kuderera kwekukosha kwe r, iyo inowedzera. iyo stress concentration factor.

Iyo yakakwira iyo yakawedzera kureba kweweld, iyo yakanyanya kusimba yekushushikana, uye kusimba kweiyo welded joint ichaderedzwa.Mushure mekugadzira, iyo yakawedzera kureba ichagadziriswa.Chero bedzi iyo yakawedzera kureba isiri yakaderera pane iyo base zvinhu, iyo yekushushikana yekumanikidza inogona kuderedzwa, uye kusimba kweiyo welded joint dzimwe nguva inogona kuvandudzwa.

Iyo yakawedzera urefu hwekunze weld yakakura, iyo inokanganisa chimiro chepombi mushure mekuwedzera kwe hydraulic.Kana iyo longitudinal yakanyura arc welded pombi inowedzerwa nekumanikidza kwemvura, pombi yesimbi inofukidzwa nekunze mold ine imwechete yemukati mhango uye kuwedzera kukura kwesimbi pombi.Nokudaro, kana kusimbiswa kweweld kwakakura zvikuru, kushushikana kweshear panguva yekuwedzera kweweld kuchave kwakakura kwazvo, uye "maduku maduku akatwasuka" anowanzoonekwa kumativi ose e weld.Chiitiko chinoratidza kuti kana kusimbiswa kwekunze weld kunodzorwa anenge 2mm, mvura Pachange pasina "diki yakatwasuka" chiitiko kana dhayamita ichiwedzerwa, uye chimiro chechubhu hachizokanganisike.Izvi zvinodaro nekuti kusimbiswa kwekunze weld kudiki, uye shear stress yeweld joint zvakare idiki, chero bedzi shear stress iri mukati me elastic deformation range Mushure mekuburitsa, springback inoitika, uye pombi ichadzokera kune yayo yepakutanga. state.Iyo yemukati weld musono ichave nehombe yakasara kureba, izvo zvinozowedzera kurasikirwa kwesimba kweanofambisa svikiro.Kana iyo yemukati pamusoro peiyo yakadzika arc welded pombi yekufambisa isina kubatwa ne-anti-corrosion kurapwa, uye mukati weld seam ine yakakura yakasara kureba, Kupokana kwekupokana kweiyo svikiro inotakura zvakare yakakura, izvo zvinowedzera simba rekushandisa pombi inotakura.

Iyo yakawedzera kureba kwekunze weld seam haikodzeri anti-corrosion.Kana iyo epoxy girazi jira rinoshandiswa anti-corrosion panguva yekushanda, iyo yakawedzera kureba kwekunze weld seam ichaita kuti weld chigunwe chiome kudzvanywa zvakasimba.Panguva imwecheteyo, kukwirisa musono we weld, kunowedzera kukora kwe anti-corrosion layer, nekuti Muyero unotaura kuti ukobvu hwe anti-corrosion layer inoyerwa zvichienderana ne vertex yemusono wekunze we welding, izvo zvinowedzera mutengo we anti. -kuora.Munguva yespiral undermerged arc welding, "hove-back-shaped" outer welding seams inowanzoonekwa, izvo zvinoita kuti zvive zvakaoma kuvimbisa kunaka kwe-anti-corrosion.Nokudaro, gadzirisa zvakanaka Nzvimbo yepakati yemusoro welding uye welding zvinyorwa zvakakoshawo zvakanyanya kuderedza kana kubvisa "fish-back shape" yekunze kwekushongedza seam.


Nguva yekutumira: Jul-06-2021