Muchigadzirwa chekugadzira simbi welding, pachava nekubuda kwekuremara kwesimbi kana nzira yekugadzira isina kunaka.Izvo zvinonyanya kukanganisa zvinopisa kuputika, kuputika kwechando, lamellar kubvarura, kushaya fusion uye kupinda kusina kukwana, stomata uye slag.

Kupwanya kunopisa.

Inogadzirwa panguva yekutonhora kwe weld.Chikonzero chikuru ndeyesarufa uye phosphorus musimbi uye welding inoumba mamwe eutectic musanganiswa, iwo masanganiswa ane brittle uye akaomarara.Munguva yekutonhora kweiyo weld, iyo eutectic musanganiswa ichave in tension state kuitira kuti iparare nyore.

Kutonhora kutsemuka.

Iyo inozivikanwawo sekunonoka kuputika, inogadzirwa kubva ku200℃kusvika kukamuri tembiricha.Ichatsemuka mushure memaminitsi mashoma kunyangwe mazuva mashoma.Icho chikonzero chine hukama zvakanyanya nedhizaini yekugadzira, welding zvinhu, kuchengetedza, application uye welding maitiro.

Lamellar Kubvarura.

Apo tembiricha yewelding yakatonhodzwa kuita minus 400 madhigirii, imwe yeplate gobvu yakakura uye yakakwira tsvina yemukati, kunyanya sarufa yemukati, uye ine kufambirana kwakasimba kune inotenderedza kutungamira pamwe nebepa resimba repamusoro low alloy simbi segregation kana iri. kuzviisa pasi pesimba perpendicular kune ukobvu kutungamira muwelding process, inoburitsa iyo rolling direction yakatsika mitswe.

Kushaikwa kweFusion uye Kupinda Kusina Kukwana.

Zvose zvinokonzeresa zvakangofanana, izvo zvisina kufanira tekinoroji parameter, zviyero uye groove dimensions, iyo yakachena haina kukwana yegroove uye weld pamusoro kana yakashata welding tekinoroji.

Stomata.

Chikonzero chikuru chekugadzira porosity mu weld ine chinongedzo nechakasarudzwa, chakachengetwa uye chinoshandiswa chewelding material, kusarudzwa kwewelding process paramita, kuchena kwegorofu uye dhigirii rekudzivirira re weld pool.

Slag.

Rudzi, chimiro uye kugoverwa kweasina-metallic inclusions akabatanidzwa kune welding nzira uye makemikari anoumba welding, Flux uye weld simbi.