Hukama huri pakati pekumhanyisa kumhanya uye weld mhando

Hukama pakati pekumhanyisa welding uye weld mhando inofanirwa kunzwisiswa dialectically uye kwete kuregeredzwa. Kunyanya kuratidzwa mune yekudziya nhanho uye crystallization nhanho.

Kupisa nhanho: Pasi pemamiriro epamusoro-frequency yakatwasuka seam welded pombi, mupendero wepombi isina chinhu inopisa kubva mukamuri tembiricha kusvika kune welding tembiricha. Munguva iyi, kumucheto kwepombi isina kuputika haina kudzivirirwa uye yakanyatsoratidzwa kumhepo, iyo isingadzivisiki inobata nechisimba neokisijeni, nitrogen, nezvimwewo mumhepo, zvichiita kuti kuwedzera kukuru kwe nitrogen uye oxides mu weld seam. Maererano nezviyero, iyo nitrogen yemukati mu weld seam inowedzera ne20-45 nguva, uye iyo okisijeni inowedzera ne7-35 nguva; Panguva imwecheteyo, alloying zvinhu senge manganese uye kabhoni zvinobatsira kune weld seam zvinopiswa zvakanyanya uye zvinoputika, zvichikonzera kuderera kweiyo mechanical properties ye weld seam. Kubva pane izvi, zvinogona kuonekwa kuti mupfungwa iyi, iyo inononoka kukurumidza kukurumidza, iyo yakaipisisa kunaka kweiyo weld seam. Uyezve, iyo yakareba mupendero webillet inopisa inotaridzirwa kumhepo, inononoka kukurumidza kwekuputika, izvo zvinogona kukonzera kuumbwa kwe-non-metallic oxides muzvikamu zvakadzika. Aya akadzika-akagara-asina-metallic oxides anonetsa kusvina zvachose kunze kweiyo weld seam panguva inotevera extrusion crystallization process, uye inoramba iri mu weld seam muchimiro cheisina-metallic inclusions mushure mecrystallization, ichigadzira chimiro chakajeka chisina kusimba chinoparadza kuenderera kweiyo weld seam chimiro uye inoderedza kusimba kweiyo weld seam. Uye kumhanya kwewelding inokurumidza, iyo oxidation nguva ipfupi, uye iyo isiri-metallic oxides inogadzirwa idiki uye inogumira kune yepamusoro layer. Zviri nyore kusvinwa kunze kweiyo weld seam panguva inotevera yeextrusion process, uye hapazove neakawanda asiri-metallic oxide akasara mumusono we weld, zvichikonzera kusimba kweweld.

Crystallization nhanho: Maererano nemisimboti yesimbi, kuti uwane yakakwirira-simba welds, zvinodikanwa kunatsa chimiro chezviyo che weld zvakanyanya sezvinobvira; Iyo yekutanga nzira yekunatsiridza ndeyekuumba yakakwana yekristaro nuclei munguva pfupi, kuitira kuti vazosangana vasati vakura zvakanyanya uye kupedzisa maitiro ekristallisation. Izvi zvinoda kuwedzera welding speed kuti ikurumidze kubvisa weld kubva munzvimbo yekupisa, kuitira kuti weld iite crystallize nokukurumidza pamwero wepamusoro wekutonhora; Kana dhigirii rekudzikisira richiwedzera, chiyero chenyucleation chinogona kuwedzera zvakanyanya, nepo kukura kunowedzera kushoma, nekudaro kuzadzisa chinangwa chekuchenesa saizi yezviyo zve weld seam. Naizvozvo, ingave ichitariswa kubva padanho rekudziya yewelding process kana kutonhora mushure mewelding, inokurumidza iyo weldin.g kumhanya, zvirinani kunaka kweiyo weld seam, chero bedzi mamiriro ekutanga welding asangana.