Calcium Silicon 60 30 Alloy maka Steelmaking Deoxidation na njikwa nsonye 

Calcium silicon 60 30 na-ebuga deoxidation ziri ezi na njikwa nsonye na nchara ọgbara ọhụrụ-karịsịa na nchara nhazi ọkwa dị elu, ọkwa pipeline, na mpempe ụgbọ ala. Anyị ebubatala alloy a na osisi 12 EAF na BOF gafee China na Ndịda Ọwụwa Anyanwụ Eshia n'ime ọnwa 18 gara aga. N'ọnọdụ ọ bụla, ndị ọrụ kọrọ nkọwa slag ngwa ngwa, mkpokọta ikuku oxygen dị ala (0.0018-0.0024 wt%), yana mmụba a na-atụnye anya na nnwale ultrasonic na-agafe ọnụego maka ịgha mkpụrụ akụkụ.

Kedu ihe kpatara Calcium Silicon 60 30 ji eme ka ọnụọgụ CaSi Alloys

Ọ bụghị ihe niile calcium silicon alloys na-akpa àgwà otu ihe na ladle metallurgy. Aha “60 30” na-ezo aka na opekempe ekwere nkwa: 60% Si na 30% Ca n'ịdị arọ. Oke ahụ dị mkpa-ọ bụghị dị ka akara ahịa, kama dị ka arịlịka thermodynamic. Na 60% Si, alloy na-adịgide adịgide n'oge nri; n'okpuru 58%, ọ na-achọ ịdaba na ngwa waya cored. Na 30% Ca, mkposa kinetics dakọtara ọkọlọtọ argon profaịlụ na 80-120 ton ladles. Anyị nwalere batches CaSi azụmahịa asaa n'akụkụ n'akụkụ: naanị ndị na-ezute ụdịdị nkọwapụta abụọ ahụ nwetara mgbake Ca na-agbanwe agbanwe karịa 62%.

Njikwa adịghị ọcha na-ekewa arụ ọrụ na adịghị ike. silicon silicon anyị 60 30 na-ejide Al ≤0.3%, S ≤0.03%, na P ≤0.025%. Gịnị mere nke ahụ ji dị mkpa? Aluminom na-etolite obere agbaze Al₂O₃-CaO spinels na-emechi nozzles tundish. Sulfur na-emebi ikike imepụta sulfide nke calcium. Otu onye ahịa na Guangdong belatara ihe omume mmechi nozulu site na 74% mgbe ọ gbanwere site na 28% Ca batch na 0.52% Al gaa na ọkwa 60 30 anyị enwetara.

Nke a abụghị usoro iwu. A na-atụ ya na data nlele tundish, maapụ nsonye sitere na nyocha SEM-EDS, yana akụkọ mpụta igwe igwe. Calcium silicon 60 30 anaghị ewepụ oxygen naanị - ọ na-agbanwe usoro nsonye nsonye. Globular CaS na calcium aluminates nọchiri ụyọkọ alumina nwere ihu dị nkọ. Mgbanwe ahụ na-eme ka ductility dịkwuo mma na -40 Celsius C na ndụ ike ọgwụgwụ na ihe ndị oyi na-atụ.

Ebe Standard CaSi ada—na ka 60 30 si edozi ya

Ụfọdụ nwere ike na-arụ ụka na dị ọnụ ala 25-28% CaSi na-arụ ọrụ nke ọma maka isi deoxidation. Ma na omume, akara ule ndị ahụ na-amanye ahia-offs. Ọdịnaya calcium dị ala na-achọ mmụba dị elu karịa - na-abawanye ụda slag, na-ebuli ike na-emegharị ahụ, na na-ebelata okpomọkụ ladle. Otu onye na-emepụta nchara gbakwunyere 1.8 kg / ton nke 26% CaSi iji kụọ ebumnuche [O]; Ịgbanwe na calcium silicon 60 30 belata usoro onunu ogwu ka 1.1kg/ton na-emeziwanye Ca mgbake site na pasent 19.

Ezigbo ọnụ ahịa abụghị alloy - ọ bụ mmetụta ala. Akwụkwọ CaSi nke a na-ejighị ya na-agbaze oxygen dị elu. CaSi na-emebiga ihe ókè na-emepụta eriri CaS gabigara ókè. Ọbụlagodi ahụ agaghị agafe ASTM A1019 ma ọ bụ EN 10228-2 ntinye akara chọrọ maka efere arịa nrụgide. Ọkwa 60 30 anyị dabara na windo dị warara ebe ọrụ Ca zuru ezu iji gbanwee ntinye * na-enweghị * saturating agbaze. Nnwale ụlọ nyocha na-egosi nsonaazụ kacha mma na 0.0025-0.0032% gbazere Ca-nke a na-enweta naanị site na njikwa nhazi siri ike yana ọdịnaya gas dị ala (<15cm³/100g).

Anyị na-anwale okpomọkụ ọ bụla maka hydrogen, nitrogen, na oxygen site na iji inert gas fusion (Leco ONH-836). Enweghị ụgbọ mmiri batch na-enweghị akwụkwọ nyocha zuru oke-gụnyere Ca, Si, Al, S, P na Mg. Ndị ahịa na-agwa anyị na traceability a na-ebelata oge QA nke ime ha site na ọkara mgbe ha tozuru oke okpomọkụ maka ngwa ọkwa nuklia.

Mmekọrịta dị mfe karịa ka ị chere

Iri calcium silicon silicon 60 30 achọghị mweghachi. Ọ na-arụ ọrụ na sistemụ waya cored ọkọlọtọ (Ø13-15 mm), injectors lance submerged, na ọbụna ntụ ntụ ntụ ntụ - ma ọ bụrụ na nkesa nha nha dị n'ime 0.5-3.0 mm. Anyị na-ebunye ya n'ụdị anụ ahụ atọ: granules e gwepịara egwepịa (maka mgbakwunye ladle), wired cored cored (nke nwere ihe mkpuchi Fe ma ọ bụ SiMn), na akpa mkpuchi mkpuchi nke kilogram 25 nke ziri ezi maka gburugburu ụlọ dị ọcha.

Ihe ndetu nrụnye isi: chekwaa n'okpuru 35 Celsius ma pụọ ​​na mmiri. Ngosipụta na ikuku iru mmiri ruo awa 48 na-abawanye oxidation n'elu - nke a na-ahụ anya dị ka uzuzu isi awọ na granules. Okpokoro oxide ahụ na-ebelata mgbasa ma na-ebelata nnyefe Ca dị irè. Anyị na-agụnye ngwugwu desiccant na ihe ngosi iru mmiri na mbupu mbupu ọ bụla. Maka ahịrị nkedo na-aga n'ihu na-agba ọsọ> tọn 150 / elekere, anyị na-akwado inye nri 30-60 sekọnd tupu ịgbanye argon ikpeazụ - ọ bụghị n'oge - iji bulie oge obibi na nnukwu igwe.

Nzaghachi n'ezie na-akwado ntụkwasị obi. Onye na-ebubata ụgbọ ala Tier-1 na Chongqing gbara ọkụ ọkụ 47 n'usoro site na iji calcium silicon 60 30. Nkezi nsonye ntinye kwa mm² gbadara site na 8.2 ruo 2.7 (ASTM E45 Method A). Mmụba mụbara 3.1%—ọ bụghị site na ọjụjụ ole na ole, mana site na mpịagharị ole na ole n'ihi ntụpọ elu.

Ịhọrọ onye na-eweta ngwaahịa ziri ezi pụtara ịjụ ajụjụ ziri ezi

Jụọ onye na-ebubata gị: Ị na-egwe ọka na ngwakọta n'ime ụlọ-ma ọ bụ na-akwakọba ihe ndị ọzọ? Ị nwere ike ịnye data OES na Leco kpọmkwem? Kedu nkezi mgbake Ca gị n'ofe ọkụ 100-ton? Inner Mongolia Xinxin Silicon Industry Co., Ltd. zara ee ha atọ. Anyị na-arụ ọrụ ahịrị mmepụta CaSi raara onwe ya nye na njikwa okpomọkụ mechiri emechi, nyocha agbaze ozugbo, yana sieving akpaghị aka na ± 0.1 mm ndidi.

silicon silicon 60 30 anyị na-akwado atụmatụ ferroalloy-ọ bụghị naanị maka deoxidation, kama maka injinia nsonye ezubere iche. Ọ na-ejikọta ya na ladles a na-agwọ Mg maka nrịanrịa ductile dị mma, yana mgbakwunye Ti maka akara ule HSLA microalloyed kwụsiri ike. Gaa leta xinxinsilicon.com iji budata akwụkwọ akụkọ teknụzụ anyị “CaSi 60 30 in Ladle Metallurgy: Charts Dosage, Maps nsonye, na nyocha ọnọdụ ọdịda”—nke sitere na ndekọ mmepụta 217 n'ofe 14 steelworks.

Calcium silicon 60 30 abụghị ngwa ahịa. Ọ bụ ngwa nlegharị anya. Jiri ya mee ihe nke ọma, ị ga-ahụ slags dị ọcha karị, eriri akụrụngwa akụrụngwa siri ike, yana ihe ịtụnanya ole na ole na igwe igwe agwụcha.