Weld mitswe mumudziyo wekumanikidza kazhinji ndewekunonoka kuputika kwechando uye kugovera kwakakura kwazvo.Mukati mekugadzirwa kwemidziyo yekumanikidza uye kusanganiswa kwemunda nekunyatsotariswa, asi nekuda kwe "kunonoka", pasi pechiito chekudzivirira kushushikana, kazhinji mukuongorora kwegore, inogona kuwanikwa muhuwandu hukuru.Pano haisi kuongorora kushushikana kwenzvimbo, kana kurapwa kwekupisa hakusi panguva yakakodzera, yunifomu uye zvimwe zvikonzero, chete nekuda kwehunyengeri hwakanyanya, uye hunogona kunge husina kunyatsoratidzwa kune workpiece pamusoro pekutsvaga nzira yekuongorora ichakurukurwa.Kutsemuka kwakadaro kwepamusoro-soro kazhinji negirazi rinokudza kana maikorosikopu kunogona kuonekwa zvinooneka.Kuvapo kwaro hakungodzikisi simba re weld, asiwo kushushikana kwepfungwa kunotungamirira kune imwe itsva, apo workpiece iri nemutoro, zvichiita kuti imwe yekuputika ichakurumidza kupararira, ichikonzera kukanganisa kwechikamu.Naizvozvo, mune zvimwe zviitiko, zvine ngozi kupfuura mamwe marudzi e macroscopic crack.Pamusoro pekumanikidzwa kwechikepe chekuongorora, maitiro ekuona zvinobudirira ma microcracks, kuvandudza chiyero chekuona che micro-cracks, iyo inoiswa mumudziyo wekuongorora inspector uye yakakuvadzwa pamberi pedambudziko chairo, uye nzira yekuwana nemazvo uye kuenzanisa zvikanganiso kuitira kumisa chirongwa chekuvandudza hunhu kwakakosha.
Kukurumidza kukurumidza kweindasitiri yemazuva ano, kune zvakasiyana-siyana zvekuona tekinoroji, iyo ine simba rake uye kushaya simba.Saka nzira yekusarudza yakanyanya kunaka tekinoroji yekuona kuputika, nzira dzakasiyana-siyana dzekuona dzinofanira kutanga dzafananidzwa kuti uwane yakanakisa mune yakakodzera nharaunda yekuona tekinoroji.Inogona kukamurwa kuita: yekuona yekuongorora (VT), magineti particle yekuyedza nzira (MT), penetrant yekuyedza nzira (PT), ultrasonic test (UT), radiographic inspection nzira (RT).
Kuti uvandudze chiyero chekuona che micro-cracks, ine nzira imwe chete yekuona kuvepo zvisingadzivisiki mipimo yakawanda uye kusiiwa kungangokonzera kusaonekwa.Kuburikidza nekudzidzira, isu tinotenda kuti kukuvadza kukuru kune yepakati uye yakanyanya kudzvanywa ngarava welds microcracks kuyedza kunofanirwa kuve kushandiswa kwakazara kweakasiyana nzira dzekuona.Vessel Inspectors vari kuita inspection commission vanofanira kuongorora nyaya dzakananga, kushandiswa kwakakwana kwenzira dzakasiyana-siyana dzekuona, uye kuratidza nzvimbo dzakakosha dzakaonekwa;Kuongorora kwakakuvara kunofanirawo kubata nenyaya dzakananga, zvine musoro kushandiswa kwesainzi kwenzira dzakasiyana dzekuona, chinangwa chaicho.
Nguva yekutumira: Zvita-08-2020