Ọkụ na-enweghị ntụpọ buru ibuThermal ịkpụzi usoro mmepụta

Thermal akpụ n'ichepụta usoro, gụnyere nnukwu-dayameta enweghị nkebi na-ekpo ọkụ akpọrepu na-ekpo ọkụ extrusion nke ụzọ abụọ, nke mbụ na-tumadi na-eji na mmepụta nke mejupụtara ọkpọkọ ọkpọkọ, nke na-emetụta enweghị nkebi mejupụtara ọkpọkọ mmepụta.

Rolling bụ usoro ọdịnala nke ịkwadebe ọkpọkọ nchara na-enweghị nkebi nke dayameta.Na-ekpo ọkụ na-agbagharị n'ime ihe nrụgide ịgbado ọkụ, ọ bụrụ na nrụrụ ahụ buru ibu nke ukwuu, nrụgide nke mpịakọta ígwè na-eme ga-emebi elu nke ihe nkiri oxide ahụ, elu atomiki na kọntaktị, nke mere na elu abụọ ahụ na-ejikọta ọnụ.Ihe ọghọm na-akpụ akpụ bụ:

Uru nke mpịakọta: elu arụpụtaghị ihe, ezigbo mma, ọnụ ala dị ala, ma nwee ike ịzọpụta ọtụtụ ihe na-eyi na akwa dara ihe, ya mere bụ ngwa ngwa ngwa nke teknụzụ mmepụta ihe mejupụtara.Mpempe akwụkwọ mpempe akwụkwọ na-atụgharị na-ejikọta 90% nke ngụkọta ihe mejupụtara, ma na-etinyekarị ya na mgbidi ọkpọkọ nke na-erughị 32mm nke nhazi.

Ọdịmma nke ịtụgharị: itinye ego otu oge, mana enwere ike nweta ọtụtụ ihe nchikota site na ịtụgharị mgbagwoju anya.Ugbu a bụ teknụzụ kachasị eji eme ihe maka iji igwe na-agbagharị agbagharị, igwe anaghị agba nchara mejupụtara ọkpọkọ ọkpọkọ n'ichepụta.

A na-emekarị extrusion na-ekpo ọkụ maka tube bi-metal, nke a na-akpọ extrusion composite (coextrude).Coextrusion ugbu a bụ usoro kachasị mma maka imepụta igwe anaghị agba nchara na akwa nickel alloy enweghị nkebi nke mejupụtara tube, Japan Steel mepụtara site na usoro a 8in (203.2mm) n'okpuru ọkpọkọ mejupụtara bimetallic.Ọ bụ nnukwu dayameta mejupụtara mejupụtara abụọ ma ọ bụ karịa metal oghere na-ewe iwe dị ka 1200.℃, na mgbe ahụ extruded site annular ohere kpụrụ site ebu na mandrel.Mgbe extrusion billet cross-ngalaba na-ebelata ka 10: 1, elu extrusion mgbali na okpomọkụ na interface na-emepụta "nrụgide ịgbado ọkụ" mmetụta ịgbado ọkụ, na-akwalite ngwa ngwa na-agbasa mgbasa nke interface n'etiti Nchikota nweta metallurgical bonding interface.Tupu extrusion mejupụtara tube n'ichepụta usoro, e nwere atọ: na forging billet ịkpọpu ihe na gbasaa site na-ekpo ọkụ extrusion nwetara;ihe nkedo centrifugal kpọmkwem;ntụ ntụ na-eguzogide corrosion.A na-eji ihe igwe abụọ eji eme ihe n'ime na n'èzí ntụ ntụ, nke a na-akpọ teknụzụ "NUVAL", nwere ike ịmepụta alloys ọhụrụ, mana ọnụ ahịa dị oke maka ịkwadebe ntụ ntụ.Ihe ọghọm nke coextrusion bụ:

Uru nke na-ekpo ọkụ extrusion : The interface bụ metallurgically bonded;agha aka na extrusion usoro bụ kpamkpam nchegbu, ọ bụ karịsịa mma ruru eru na-ekpo ọkụ workability, elu alloy nhazi ala plasticity nke ọla.

Ọdịmma nke na-ekpo ọkụ extrusion: Dị ka kpebisiri ike site extrusion usoro jikọtara na nnọọ mkpụmkpụ mgbasa interface ọcha, na-emekarị n'ihi na ọnụnọ nke oxide fim e emetụta, otú dị nnọọ ejedebeghị na mejupụtara extrusion mejupụtara carbon ígwè, igwe anaghị agba nchara na elu nickel alloys n'etiti. .Ọ na-kwuru na a obere deformation eguzogide nke na-ekpo ọkụ extrusion, ikwe a nnukwu ogo deformation nke ọ bụla, n'ihi na elu elu roughness, ya mere na-n'ihu oyi Rolling na-ekpo ọkụ extrusion (ma ọ bụ ịbịaru) nke usoro nke n'ichepụta a mejupụtara ọkpọkọ. .