Mmekọrịta dị n'etiti ịgbado ọkụ ọsọ na weld àgwà

Mmekọrịta dị n'etiti ịgbado ọkụ ọsọ na weld àgwà kwesịrị ịghọta dialectically na ghara ileghara. Tumadi gosipụtara na kpo oku ogbo na crystallization ogbo.

Okpokoro ikpo oku: N'okpuru ọnọdụ nke elu-ugboro ogologo ogologo nkedo welded ọkpọkọ, na nsọtụ nke ọkpọkọ oghere na-ekpo ọkụ si ụlọ okpomọkụ na ịgbado ọkụ okpomọkụ. N'ime oge a, ọnụ ọnụ nke ọkpọkọ oghere adịghị echebe na kpamkpam kpugheere ikuku, nke na-apụghị izere ezere meghachi omume ike na oxygen, nitrogen, wdg na ikuku, na-eme ka a ịrịba mmụba na nitrogen na oxides na weld onuete. Dị ka nha, nitrogen ọdịnaya na weld seam na-abawanye site 20-45 ugboro, na oxygen ọdịnaya na-abawanye site 7-35 ugboro; N'otu oge ahụ, alloying ọcha dị ka manganese na carbon nke bara uru na weld seam na-ọkụ nke ukwuu ma na-ekupụ, na-akpata mbelata na n'ibu Njirimara nke weld seam. Site na nke a, enwere ike ịhụ na n'echiche a, ka ịgbado ọkụ na-adị nwayọọ, na-akawanye mma nke eriri weld. Ọzọkwa, ka ogologo akụkụ nke billet ahụ na-ekpo ọkụ na-ekpughere ikuku, ọsọ nke ịgbado ọkụ na-eji nwayọọ nwayọọ, nke nwere ike ime ka e guzobe oxides na-abụghị metallic n'ígwé dị omimi. Ndị a miri-nọdụ ala na-abụghị ọla oxides siri ike kpamkpam afanye si weld onuete n'oge ụdi extrusion crystallization usoro, na-anọgide na weld onuete n'ụdị na-abụghị ọla inclusions mgbe crystallization, na-akpụ a doro anya na-emebi emebi interface na-ebibi ihe. continuity nke weld onuete Ọdịdị na-ebelata ike nke weld onuete. Na ịgbado ọkụ ọsọ bụ ngwa ngwa, ọxịdashọn oge dị mkpirikpi, na ndị na-abụghị metal oxides emepụta bụ dịtụ obere na-ejedebeghị na elu oyi akwa. Ọ dị mfe ịpụpụ site na eriri weld n'oge usoro extrusion na-esote, ọ gaghị enwekwa ihe fọdụrụ na oxide na-abụghị metallic n'ime eriri weld, na-ebute ike weld dị elu.

Ogbo crystallization: Dị ka ụkpụrụ nke metallurgy si dị, iji nweta ike dị elu, ọ dị mkpa iji nụchaa nhazi ọka nke weld dị ka o kwere mee; Ụzọ bụ isi maka imeziwanye ihe bụ ịmepụta kristal zuru ezu n'ime obere oge, nke mere na ha na-abanye na ibe ha tupu ha etoo nke ọma ma kwụsị usoro kristal. Nke a na-achọ ịba ụba ngwa ngwa ịgbado ọkụ iji wepụ ngwa ngwa weld site na mpaghara kpo oku, iji mee ka weld nwee ike kristal ngwa ngwa na ọkwa dị elu nke na-adịghị mma; Mgbe ogo nke undercooling na-abawanye, ọnụọgụ nucleation nwere ike ịba ụba nke ukwuu, ebe uto uto na-abawanye ntakịrị, si otú a na-enweta ihe mgbaru ọsọ nke imezi nha ọka nke eriri weld. Ya mere, ma elere site kpo oku ogbo nke ịgbado ọkụ usoro ma ọ bụ jụrụ mgbe ịgbado ọkụ, ngwa ngwa na weldin.g ọsọ, mma mma nke weld seam, ma ọ bụrụhaala na a na-ezute ọnọdụ ịgbado ọkụ bụ isi.