Coiling okpomọkụ mmetụta Njirimara na warara

Mgbe ị gụchara warara ahụ, mee ka mmiri dị jụụ n'ime oyi akwa iji gbanwee oke okpomọkụ na-agbakọtaα a na-ebelata nke ukwuu.N'okpuru ọtụtụ eutectoid ferrite nucleation na uto na coiling okpomọkụ, na-eso emecha nke ukwuu nwayọọ jụrụ ọnọdụ nwere ike na-ewere dị ka isothermal mgbanwe usoro, ya mere, na-emetụta coiling okpomọkụ na microstructure na Njirimara nke ígwè ghọtara dị ka mmetụta nke mgbanwe na okpomọkụ. .Ya mere mmetụta nke ikpokọta okpomọkụ na microstructure na Njirimara nke ígwè dị oke mkpa.Mgbe okpomoku na-agbakọta dị elu, otu mkpụrụ ọka ferrite na-esighị ike, nke dị oke ala n'ihi mgbanwe n'ogo nke supercooling.α, obere ihe nucleation, tumadi na oke ọka nke isiγ ọka, ibu ibu karịa ferrite ngwa ngwa ruru.Mgbe okpomoku na-agbakọta dị obere,α mụbara ọnụ ọgụgụ nke nucleation, uto ngwa ngwa na-ebelata ferrite, nha ọka ferrite na-adị ntakịrị, mana ọ na-agbasawanye ọmarịcha pearlite.Site na mbelata okpomọkụ ferrite ntụ ọka ferrite, ọnụ ọgụgụ acicular ferrite ji nwayọọ nwayọọ na-abawanye, na-abawanye ọdịnaya pearlite, oghere lamellar pearlite na-eji nwayọọ nwayọọ belata.Ya mere, na obere okpomọkụ na-agbakọta, index ike ga-abawanye, ebe index plasticity belatara ntakịrị, nke bụ carbon na ferritic alloy element n'ihi naγ-α mgbanwe oge na obere okpomọkụ nwetara mgbe ọdịnaya nke elu exigencies.Mgbe ọgwụgwụ nke oyi okpomọkụ dị oke ala, mkpụrụ ruru mma formability detrimental ka, n'ihi na ọtụtụ abụọ ọgbọ na-adọ, karịsịa keadighi rarii bainite ígwè plasticity index nke mwepu.

Mmetụta nchịkwa okpomọkụ na-ekpuchi mkpuchi na microstructure

Metallurgical igwe akụrụngwa, coiling okpomọkụ na imecha Rolling okpomọkụ, dị ka mmetụta nke a nnukwu ígwè microstructure, bụ otu n'ime determinants nke okokụre ígwè nhazi, n'ibu Njirimara nke dị mkpa usoro parameters.Coiling okpomọkụ akara bụ n'ezie mmepụta nke na-ekpo ọkụ-akpọrepu warara ígwè Rolling achịkwa obi jụrụ, na na-achịkwa jụrụ mgbe tụgharịa isi ihe na-emetụta àgwà nke ngwaahịa bụ mmalite nke jụrụ (oyi mmalite okpomọkụ bụ isi agwụcha okpomọkụ) na njedebe okpomọkụ, jụrụ oyi. ọsọ na uniformity nke jụrụ.Ọnọdụ okpomọkụ kwesịrị ịdị n'okpuru 670℃, n'ozuzu 600 ~ 650℃.N'ime oke okpomoku a, igwe igwe nchara igwe emechaala microstructure, nwere ike ime ka ọ dị jụụ yana nwayọ nwayọ iji belata nrụgide dị n'ime nke warara bara uru.Coiling okpomọkụ dị oke elu, ọ ga-eme ka recrystallization na ngwa ngwa jụrụ mgbe coiling na-emepụta anụ ahụ mkpokọta na keadighi rarii ọka carbides, na-akpata na njọ nke n'ibu Njirimara na ọgbọ nke ike ígwè akpụkpọ, otú pickling siri ike.Ọ bụrụ na mkpuchi mkpuchi ahụ dị oke ala, ebe ikuku siri ike, na ọnụnọ nke nrụgide fọdụrụnụ, nkwụsịtụ dị mfe, na-emetụta àgwà nke warara a kwụsịrị;n'aka nke ọzọ, na coiling okpomọkụ ezughị iji mee ka supersaturated carbonitrides ọdịda, na-emetụta akpọrepu arụmọrụ.Ya mere, njikwa ọnọdụ okpomọkụ site na microstructure dị n'ime n'ime oke nchara kọwapụtara, bụ ihe ọzọ na-achịkwa nke ọma n'ịgba ígwè ígwè.Dị iche iche iche na nkọwa nke warara, ya n'ọnụ Rolling finishing okpomọkụ bụ n'ozuzu 800℃, ukwuu gbakwasara silicon ígwè emecha okpomọkụ na-abụkarị 980℃, ebe na ihe karịrị 100 m ogologo ígwè mmepụta rollers na-agba ọsọ naanị 5 ruo 158 .N'ihi na ndị dị otú ahụ a obere oge iji belata warara okpomọkụ 200 ~ 350℃, okpomọkụ radieshon naanị ígwè mmepụta rollers na ala okpomọkụ ka eke obi jụrụ usoro agaghị ekwe omume, na mmepụta rollers ga-adị nnọọ Isetịpụ a ogologo anya elu-arụmọrụ mmiri jụrụ n'ihi na warara, mmanye jụrụ nke mmiri elu, na n'ụzọ ziri ezi ịchịkwa. oke mmiri iji gboo ihe achọrọ nke okpomọkụ mkpuchi.Specific mmejuputa iwu coiling okpomọkụ akara dabeere metallurgical igwe iche iche iche nke warara (ihe, size), na dị iche iche na-ekwu nke otu warara ebe (okpomọkụ, ọsọ), eruba site n'ogologo nke jụrụ oyi oyi oyi akwa (ie, na-emeghe obi jụrụ. Ọnụọgụ nke nkụnye eji isi mee) nke ngbanwe dị ike nke ngụkọta ogologo nke ibe ahụ ruo n'otu ebe site na oke ọkụ Qian ikpeazụ na-atụgharị ruo na ikuku ikuku nke ngwa ngwa jụrụ oyi chọrọ.