Domestic petroleum, kemikari uye mamwe maindasitiri emagetsi anoda huwandu hukuru hwesimbi-yepasi-tembiricha kugadzira uye kugadzira akasiyana siyana ekugadzira uye ekuchengetedza michina senge liquefied petroleum gasi, liquid ammonia, liquid okisijeni uye liquid nitrogen.
Sekureva kwechirongwa cheChina chegumi nembiri cheMakore mashanu, kuvandudzwa kwesimba repetrochemical kuchagadziridzwa uye kuvandudzwa kwemafuta negasi zviwanikwa kuchakurumidza mumakore mashanu anotevera. Izvi zvichapa musika wakafara uye mukana wekusimudzira wekugadzira simba uye kuchengetedza zvigadzirwa zvekugadzira indasitiri pasi peyakadzika tembiricha sevhisi mamiriro, uye zvakare inosimudzira kusimudziraQ355D yakaderera tembiricha inodzivirira rectangular chubhuzvinhu. Sezvo pombi dzepasi-tembiricha dzinoda kuti zvigadzirwa zviite kwete chete simba rakakwirira asiwo kusimba kwepamusoro uye kuderera kwekushisa, pombi dzepasi-tembiricha dzinoda kuchena kwesimbi kwepamusoro, uye nechiyero chemhete chekushisa, kuchena kwesimbi zvakare kwakakwira. Q355EUltra-yakaderera tembiricha square chubhuinogadzirwa uye yakagadzirwa. Iyo billet simbi inogona kushandiswa yakananga seamless simbi pombi yeConveying chimiro. Iyo nzira yekugadzira inosanganisira matatu anotevera mapoinzi:
(1)Electric arc furnace smelting: simbi yakarashika uye simbi yenguruve inoshandiswa sembishi zvinhu, pakati peiyo simbi yakarashika inotora 60-40% uye yenguruve iron account ye 30-40%. Kutora mukana wezvakanakira zvealkalinity yakakwira, tembiricha yakaderera uye yakakwira iron oxide yeyakanyanya-yakakwirira giredhi yemagetsi arc choto, kuzunguza kwakanyanya kweokisijeni decarburization nepfuti yeokisijeni pamadziro echoto, uye kunyungudutsa mvura yekutanga kugadzira simbi. ne-high impedance uye ultra-high power giredhi yemagetsi arc furnace, zvinhu zvinokuvadza phosphorus, hydrogen, nitrogen uye kwete-metallic inclusions musimbi yakanyungudutswa inogona kubviswa zvinobudirira. End point carbon yesimbi yakanyungudutswa mumagetsi arc furnace <0.02%, phosphorus <0.002%; Deoxidation yakadzika yesimbi yakanyungudutswa inoitwa mukuita kwemagetsi echoto kurova, uye A1 bhora uye carbasil inowedzerwa kuita pre deoxidation.
Iyo aruminiyamu yemukati musimbi yakanyungudutswa inodzorwa pa 0.09 ~ 1.4%, kuitira kuti iyo Al203 inclusions inoumbwa musimbi yekutanga yakanyungudutswa ine nguva yakakwana yekuyangarara, nepo aruminiyamu yemukati yechubhu billet simbi mushure mekunatsa kweLF, VD vacuum kurapwa uye kuenderera kukanda. inosvika 0.020 ~ 0.040%, iyo inodzivirira kuwedzera kweAl203 yakagadzirwa nealuminium oxidation muLF refining process. Iyo nickel plate accounting ye25 ~ 30% yeiyo yakazara alloy inowedzerwa kune iyo ladle yealloying; Kana iyo kabhoni yemukati yakakura kupfuura 0.02%, iyo kabhoni yemhando yepamusoro-yakaderera tembiricha haigone kusangana ne0.05 ~ 0.08%. Zvisinei, kuti kuderedze oxidation yesimbi yakanyungudutswa, zvinodikanwa kudzora iyo okisijeni inovhuvhuta kusimba kwechoto madziro cluster oxygen pfuti kudzora kabhoni yemukati yesimbi yakanyungudutswa pazasi 0.02%; Kana iyo phosphorus yemukati yakaenzana ne0.002%, iyo phosphorus yemukati yechigadzirwa ichasvika kupfuura 0.006%, iyo inowedzera inokuvadza element phosphorus yemukati uye inokanganisa yakaderera-yekushisa kuoma kwesimbi nekuda kwekuderera kwe phosphorus ine slag. kubva muchoto chemagetsi kubata uye kuwedzera kweferroalloy panguva yeLF yekunatsa. Kubata tembiricha yemagetsi arc vira ndeye 1650 ~ 1670 ℃, uye iyo eccentric yepasi tapping (EBT) inoshandiswa kudzivirira iyo oxide slag kupinda muLF yekunatsa choto.
(2)Mushure mekunatswa kweLF, waya yekudyisa inodyisa 0.20 ~ 0.25kg/t waya yakachena yeCA yesimbi kuti ibvise tsvina uye kuita kuti zvinosanganisirwa musimbi yakanyungudutswa zvive denderedzwa. Mushure meCa kurapwa, simbi yakanyungudutswa inoputika neargon pazasi peladhi kwemaminitsi anopfuura gumi nemasere. Simba rekuvhuvhuta kweArgon rinogona kuita kuti simbi yakanyungudutswa isafumurwe, kuitira kuti spherical inclusions musimbi yakanyungudutswa ive nenguva yekuyangarara yakakwana, inonatsiridza kuchena kwesimbi, uye kuderedza kukanganiswa kwespherical inclusions pakusimba kwekushomeka kwekudzika-tembiricha. Huwandu hwekudyisa kwewakachena CA waya isingasviki 0.20kg / t simbi, iyo inclusions haigone kubviswa zvachose, uye huwandu hwekudya hweCa wire hunopfuura 0.25kg/t simbi, iyo inowanzowedzera mutengo. Pamusoro pezvo, kana huwandu hwekudya hweCa line hwakakura, simbi yakanyungudutswa inovira zvine chisimba, uye kuchinjika kweyero yesimbi yakanyungudutswa kunoita kuti simbi yakanyungudutswa inyunzwe mukati uye yechipiri oxidation inoitika.
(3)VD vacuum kurapwa: tumira lf yakacheneswa simbi yakanyungudutswa kuVD chiteshi kunorapwa vacuum, chengeta vacuum iri pazasi 65pa kweanopfuura maminetsi makumi maviri kudzamara slag yamira kupupuma furo, vhura chivharo chevacuum, uye furidzira argon pazasi peladle yekufuridza static. simbi yakanyungudutswa.
Nguva yekutumira: Sep-02-2022
