Domestic petroleum, kemịkalụ na ụlọ ọrụ ike ndị ọzọ chọrọ ọnụ ọgụgụ dị ukwuu nke ígwè dị ala iji chepụta na imepụta ihe dị iche iche na-emepụta ihe na nchekwa nchekwa dị ka gas mmanụ mmanụ, mmiri mmiri amonia, oxygen mmiri na mmiri nitrogen.
Dị ka atụmatụ afọ ise nke 12 nke China si kwuo, a ga-eme ka mmepe nke ike petrochemical dịkwuo mma na mmepe nke mmanụ na gas ga-eme ngwa ngwa n'ime afọ ise na-abịa. Nke a ga-enye nnukwu ahịa na ohere mmepe maka ụlọ ọrụ mmepụta ike na nchekwa akụrụngwa n'okpuru ọnọdụ ọrụ okpomọkụ dị ala, ọ ga-akwalitekwa mmepe nkeQ355D obere okpomọkụ na-eguzogide tube akụkụ anọihe. Dị ka ọkpọkọ na-ekpo ọkụ na-achọ ngwaahịa ka ọ bụghị naanị ike dị elu kamakwa ịdị elu dị elu ma dị elu, ọkpọkọ okpomọkụ na-achọ ka ịdị ọcha dị elu nke ígwè, yana na mgbanaka mgbanaka nke okpomọkụ, ịdị ọcha nke ígwè dịkwa elu. Q355Eultra-obere okpomọkụ square tubeemepụtara ma chepụta ya. Enwere ike iji ígwè billet ozugbo dị ka ọkpọkọ nchara na-enweghị nkebi maka ihe nrụpụta. Usoro nrụpụta gụnyere isi ihe atọ ndị a:
(1)Igwe ọkụ ọkụ eletrik na-agbaze: a na-eji ígwè kpụkọrọ akpụkọ na ígwè ezingwaọrụ, n'ime nke scrap ígwè na-akpata 60-40% na ezì bụ 30-40%. N'iji uru nke alkalinity dị elu, obere okpomọkụ na ígwè oxide dị elu nke ọkụ ọkụ ọkụ eletrik dị elu, mkpali ikuku oxygen site na ngwugwu ikuku oxygen na mgbidi ọkụ, na-agbaze mmiri mbụ nke na-eme ka ígwè na-eji nnukwu impedance na ultra-high power grade, hydrogental iron, carbon carbon, carbon carbon, carbon carbon, carbon carbon, carbon carbon, carbon carbon, carbon carbon, carbon carbon, carbon carbon, hydrogen. enwere ike wepu ya nke ọma. Ebe njedebe carbon nke nchara a wụrụ awụ na ọkụ ọkụ eletrik <0.02%, phosphorus <0.002%; A na-eme deoxidation miri emi nke nchara a wụrụ awụ na usoro ịkụ ọkụ ọkụ eletrik, a na-agbakwunye bọọlụ A1 na carbasil iji mee tupu deoxidation.
A na-achịkwa ihe dị n'ime aluminom na nchara a wụrụ awụ na 0.09 ~ 1.4%, nke mere na ntinye Al203 kpụrụ na nchara mbụ a wụrụ awụ nwere oge zuru ezu na-ese n'elu mmiri, ebe ọdịnaya aluminom nke tube billet ígwè mgbe LF refining, VD agụụ ọgwụgwọ na-aga n'ihu nkedo ruru 0.020 ~ 0.040% nke aluminum oxidation, nke na-ezere na mgbakwunye na aluminum oxidation. usoro. The nickel efere aza ajụjụ 25 ~ 30% nke ngụkọta alloy na-agbakwunyere na ladle maka alloying; Ọ bụrụ na carbon ọdịnaya karịrị 0.02%, carbon ọdịnaya nke ultra-obere okpomọkụ ígwè enweghị ike izute chọrọ 0.05 ~ 0.08%. Otú ọ dị, iji belata oxidation nke ígwè a wụrụ awụ, ọ dị mkpa ijikwa ikuku oxygen na-afụ ọkụ nke ọkụ ọkụ mgbidi ụyọkọ oxygen egbe iji chịkwaa ọdịnaya carbon nke ígwè gbazere n'okpuru 0.02%; Mgbe ọdịnaya phosphorus dị nhata 0.002%, ọdịnaya phosphorus nke ngwaahịa ahụ ga-eru karịa 0.006%, nke ga-eme ka ọdịnaya phosphorus na-emerụ ahụ dịkwuo elu ma na-emetụta ịdị ike nke obere okpomọkụ nke ígwè n'ihi dephosphorization nke phosphorus nwere slag sitere na ọkụ ọkụ eletrik na mgbakwunye nke ferroalloy n'oge nrụcha LF. Igwe ọkụ ọkụ ọkụ ọkụ ọkụ eletrik bụ 1650 ~ 1670 ℃, na eccentric ala tapping (EBT) na-eji gbochie slag oxide ịbanye n'ọkụ refining LF.
(2)Mgbe emechara LF, onye na-azụ waya na-eri nri 0.20 ~ 0.25kg/t dị ọcha CA waya nke ígwè iji denature adịghị ọcha ma mee ka ntinye na nchara a wụrụ awụ ghọọ okirikiri. Mgbe ọgwụgwọ Ca gasịrị, a na-eji argon fesa ígwè a wụrụ awụ na ala nke ladle maka ihe karịrị nkeji iri na asatọ. Ike nke argon ịfụ nwere ike ime ka ígwè a wụrụ awụ ghara ikpughe, nke mere na ntinye nke sppherical na nchara a wụrụ awụ nwere oge zuru ezu na-ese n'elu mmiri, na-eme ka ịdị ọcha nke ígwè dị ọcha, ma belata mmetụta nke ntinye nke gburugburu na mmetụta siri ike nke obere okpomọkụ. Ọnụ ego nri nke waya CA dị ọcha bụ ihe na-erughị 0.20kg / t ígwè, ihe ntinye ahụ enweghị ike ịkwụsị kpamkpam, na ego nri nke Ca waya karịrị 0.25kg / t ígwè, nke na-abawanye ọnụ ahịa. Na mgbakwunye, mgbe ọnụọgụ nri nke eriri Ca buru ibu, nchara a wụrụ awụ na-esi n'ike ike, na mgbanwe nke ọkwa nchara a wụrụ awụ na-eme ka nchara ahụ gbazere banye na oxidation nke abụọ na-apụta.
(3)VD vacuum treatment: zipu lf nchara nchara nchara na VD ọdụ maka ọgwụgwọ agụụ, debe oghere n'okpuru 65pa karịa nkeji 20 ruo mgbe slag kwụsịrị ịfụ ụfụfụ, mepee mkpuchi oghere, wee fesa argon na ala nke ladle ahụ maka ịfụ nchara nchara.
Oge nzipu: Sep-02-2022
