Mapaipi esimbi anotonhoraElongation uye kuderedza nzvimbo

Cold drawn inzira yekugadzira zvinhu, zvesimbi zvinhu, zvichireva kudhirowa kuitira kuti uwane imwe chimiro uye imwe michina michina, zvinhu zviri pasi pekamuri tembiricha mamiriro ekudhirowa.Zvigadzirwa zvinotonhora zvakadhonzwa zvichienzaniswa ne thermoforming: yakakwira dimensional kurongeka uye yakanaka yepamusoro pekupedzisira mabhenefiti.

Kudhirowa hombe dhayamita simbi pombi Elongation (σ), muyedzo yekusimba, Hurefu hwesample mushure mekutora huwandu hwayo hwakawedzera sechikamu cheiyo yepakutanga geji kureba inonzi elongation.Withσ inoratidzwa muzvikamu zve%.Chimiro chacho ndeichi: kupi: L1 - muenzaniso wakatsemuka geji kureba, mm;L0 - iyo yekutanga yemuenzaniso geji kureba, mm.

Kudhirowa hombe dhayamita pombi chikamu shrinkage (ψ) muyedzo yetensile, iyo sampuli yakakura kuderedzwa kwechikamu muhuwandu hwepakutanga-chikamu chechikamu chechikamu chechikamu chayo chepakati-chikamu pamutsipa dhonza, inozivikanwa sechikamu shrinkage.Toψ inoratidzwa muzvikamu zve%.Yakaverengerwa sezvizvi: uko: S0 - yepakutanga specimen cross-sectional area, mm2;S1 - muenzaniso wakatsemuka mitsipa ingangoita muchinjiko-chikamu nzvimbo, mm2.

Iyo tensile test specimen mumutsipa wepurasitiki deformation process.Ipapo kurebesa kwemuenzaniso kwakaratidza kudzikama-chikamu chechikamu pamwe nechikamu chemitsipa chemuenzaniso chinoramba chichiwedzera, kusvikira sampuli yese yava mamiriro emutsipa.Kuderera kwakanyanya mumutsipa kwakaitika mugoho rekushushikana nhanho.Kana iyo tembiricha yekudhirowa yesimbi pazvibodzwa mukudhirowa pazasi recrystallization tembiricha yekudhirowa, mukudhirowa pamusoro peiyo tembiricha recrystallization inopisa kudhirowa pane tembiricha yakakwira kupfuura tembiricha yekamuri pazasi recrystallization tembiricha yekudhonza kudhonza.Kudhirowa waya yesimbi, kugadzirwa kwewaya kudhirowa nzira yakajairika.Thermal kudhonza waya kuti dziyedzerwe isati yapinda kufa, iyo refractory simbi inonyanya kushandiswa kudhirowa, senge tungsten, molybdenum uye imwe simbi waya.Kana tembiricha kudhonza waya inoda chete kudhonzwa mugomba rekufa nehita kune yakatarwa tembiricha siyana, kunyanya kune zinc waya, waya yakaoma deformation senge simbi yekumhanya, inotakura simbi yekudhirowa.