Kalisiyumu Silicon 60 30 Amavuta yo gukora Deoxidation no kugenzura 

Kalisiyumu silicon 60 30 itanga deoxidisation no kugenzura neza mubikorwa byo gukora ibyuma bigezweho - cyane cyane mubyuma byo murwego rwohejuru byubatswe, ibyiciro byumuyoboro, nimpapuro zimodoka. Twatanze aya mavuta ku bihingwa 12 bya EAF na BOF mu Bushinwa no mu majyepfo y’amajyepfo ya Aziya mu mezi 18 ashize. Muri buri kibazo, abakoresha bavuze ko byihuse bisobanurwa neza, ibisigisigi bya ogisijeni yo hasi (0.0018–0.0024 wt%), hamwe niterambere ryagaragaye mubipimo byipimisha ultrasonic kubipimo byimbitse.

Impamvu Kalisiyumu Silicon 60 30 Iruta Rusange CaSi Amavuta

Ntabwo calcium silicon alloys yose yitwara kimwe muri metallurgie. Ijambo "60 30" ryerekana byibuze byemewe: 60% Si na 30% Ca kuburemere. Iri gereranya rifite akamaro - ntabwo ari ikirango cyo kwamamaza, ahubwo ni inanga ya termodinamike. Kuri 60% Si, ibishishwa biguma bihamye mugihe cyo kugaburira; munsi ya 58%, ikunda gusenyuka mugukoresha insinga. Kuri 30% Ca, gusesa kinetics bihuye na argon-ikurura imyirondoro muri toni 80-120. Twagerageje ibyiciro birindwi byubucuruzi bya CaSi kuruhande rumwe: gusa abo bahuye nibice byombi bagezeho gukira kwa Ca hejuru ya 62%.

Igenzura ryanduye ritandukanya imikorere ninziza. Kalisiyumu silicon 60 30 ifite Al ≤0.3%, S ≤0.03%, na P ≤0.025%. Kuki ibyo bifite akamaro? Aluminium ikora gushonga gake Al₂O₃-CaO izunguruka ifunga tundish nozzles. Amazi ya sufuru yangiza calcium ya sulfide. Umukiriya umwe muri Guangdong yagabanije ibyabaye byo gufunga nozzle kuri 74% nyuma yo kuva muri 28% Ca hamwe na 0.52% Al kugeza kumpamyabumenyi yacu 60 30.

Ibi ntabwo ari amahame. Irapimwa muri tundish sampling data, amakarita yo gushiramo kuva isesengura rya SEM-EDS, na raporo yumusaruro uzunguruka. Kalisiyumu silicon 60 30 ntabwo ikuraho ogisijeni gusa-ivugurura morphologie. Globular CaS na calcium aluminates isimbuza impande zombi za alumina. Ihinduka ritezimbere mu buryo butaziguye guhindagurika kuri –40 ° C hamwe nubuzima bwumunaniro mubice bikonje.

Aho bisanzwe CaSi yananiwe-nuburyo 60 30 Bikosora

Bamwe bashobora kuvuga ko bihendutse 25-28% CaSi ikora neza kugirango deoxidation yibanze. Ariko mubikorwa, ayo manota ahatira gucuruza. Kalisiyumu yo hasi isaba igipimo cyiyongereye - kongera ingano ya slag, kuzamura imyenda idahwitse, no kugabanya ubushyuhe bwa salle. Umwe mu bakora ibyuma yongeyeho 1.8 kg / toni ya 26% CaSi kugirango akubite intego [O]; guhinduranya calcium silicon 60 30 gabanya dosiye kuri 1,1 kg / toni mugihe utezimbere Ca kugarura amanota 19%.

Igiciro nyacyo ntabwo kivanze-ni ingaruka zo hasi. Amababi ya CaSi adafunze cyane yashonga ogisijeni hejuru. Kurenza urugero CaSi ikora imirongo ya CaS ikabije. Nta kintu na kimwe cyatsinze ASTM A1019 cyangwa EN 10228-2 ibisabwa byo gushyiramo ibipimo byerekana icyapa. Ibyiciro byacu 60 30 bikubita idirishya rifunganye aho ibikorwa bya Ca birahagije kugirango uhindure inclus * utiriwe * wuzuza gushonga. Ibigeragezo bya laboratoire byerekana ibisubizo byiza kuri 0.0025–0.0032% ya Ca yasheshwe - bigerwaho gusa hamwe no kugenzura ibintu neza hamwe na gaze nkeya (<15 cm³ / 100g).

Tugerageza ubushyuhe bwose kuri hydrogène, azote, na ogisijeni dukoresheje gazi ya inert (Leco ONH-836). Nta mato mato adafite icyemezo cyuzuye cyo gusesengura-harimo Ca, Si, Al, S, P, hamwe na Mg isigaye. Abakiriya batubwire iyi troncable igabanya igihe cyimbere QA igice cya kabiri mugihe bujuje ibisabwa bishya byo murwego rwa kirimbuzi.

Kwishyira hamwe biroroshye kuruta uko ubitekereza

Kugaburira calcium silicon 60 30 ntibisaba retrofit. Ikora muri sisitemu isanzwe ifite insinga (Ø13-15 mm), inshinge za lance zashizwe mumazi, ndetse no gushiraho inshinge-niba ingano yubunini bugumye muri mm 0.5-3,0. Turabitanga muburyo butatu bwumubiri: granules yajanjaguwe (kugirango yongereho ingofero), insinga zabanje gushyirwaho (hamwe na Fe cyangwa SiMn sheathing), hamwe nudupapuro twuzuye twa kg 25 twafunzwe na vacuum bifunze kumasuku yibidukikije.

Inyandiko zingenzi zo kwishyiriraho: kubika munsi ya 35 ° C kandi kure yubushuhe. Guhura n'umwuka mwinshi mugihe cyamasaha 48 byongera okiside yubuso-bigaragara nkumukungugu wumukara kuri granules. Urwo rwego rwa oxyde itinda gusesa kandi igabanya itangwa rya Ca neza. Dushyiramo ibipapuro byangiza nubushuhe mubicuruzwa byose byoherejwe hanze. Kumurongo uhoraho wo gutara ukoresha> toni 150 / isaha, turasaba kugaburira amasegonda 30-60 mbere yuko argon ya nyuma ikurura - atari mugihe - kugirango twongere igihe cyo gutura mubyuma byinshi.

Ibitekerezo-byukuri byemeza kwizerwa. Isosiyete yo mu bwoko bwa Tier-1 muri Chongqing yakoresheje ubushyuhe 47 bukurikiranye ikoresheje calcium silicon 60 30. Impuzandengo yo kubara kuri mm² yavuye kuri 8.2 igera kuri 2.7 (Uburyo bwa ASTM E45 A). Umusaruro wiyongereyeho 3,1% - ntabwo biva kuri bake banze, ariko bivuye kuri bike byongeye kuzunguruka kubera inenge zo hejuru.

Guhitamo Utanga Iburyo Bisobanura Kubaza Ibibazo Byukuri

Baza uwaguhaye isoko: Urasya hanyuma ukavanga munzu - cyangwa ugasubiramo ibikoresho byabandi? Urashobora gutanga icyiciro cyihariye cya OES na Leco? Ni ubuhe buryo bwo kugereranya Ca bwo kugarura ubushyuhe bwa toni 100? Imbere muri Mongoliya Xinxin Silicon Industry Co., Ltd isubiza yego kuri bose uko ari batatu. Dukora imirongo yabugenewe ya CaSi hamwe nubugenzuzi bwubushyuhe bwo gufunga ubushyuhe, gusesengura igihe-cyo gushonga, hamwe no gushungura byikora byahinduwe kugeza ± 0.1 mm kwihanganira.

Kalisiyumu silicon 60 30 ishyigikira ingamba za ferroalloy - ntabwo ari deoxidation gusa, ahubwo ni iyinjizwamo ryubuhanga. Ihuza byateganijwe hamwe na Mg ivura urwego kugirango irusheho kunonosorwa mubyuma byangiza, hamwe na Ti wongeyeho amanota ya HSLA ahamye. Sura xinxinsilicon.com gukuramo itangazo ryacu rya tekiniki "CaSi 60 30 muri Ladle Metallurgie: Imbonerahamwe ya Dosage, Ikarita Yashyizwemo, hamwe na Failure Mode Analyse" - yubatswe mu bicuruzwa 217 byakozwe mu byuma 14.

Kalisiyumu silicon 60 30 ntabwo ari ibicuruzwa. Nibikoresho byahinduwe. Koresha neza, kandi uzabona ibishushanyo bisukuye, imitungo irushijeho gukomera, hamwe nibitunguranye bike muruganda rurangiza.