Dangantaka Tsakanin Fasa -Fashe Karfe Da Hadawa A Karfe

Haɗuwa da aka samu yayin narkar da baƙin ƙarfe na ɗaya daga cikin mahimman abubuwan da ke haifar da fasa fasa ƙarfe. Don rage haɗe -haɗe a cikin narkakken ƙarfe, yayin aiwatar da ƙoshin, ya zama dole a ƙarfafa ayyukan ƙonawa kamar deoxidation, desulfurization, cire ƙazanta, da gurɓataccen abu, da ɗaukar matakan da suka dace a ladle bayan tanderu, kamar ƙara Ƙananan ƙasashe, da dai sauransu Siffar haɗe -haɗen na iya rage wanzuwar haɗaɗɗen kuma mafi kyawun kawar da fasa bututun ƙarfe.

1 Nau'i da abubuwan da ke haifar da shiga cikin karfe

Abubuwan da aka haɗa a cikin ƙarfe galibi suna nufin abubuwan da ba na ƙarfe ba a cikin ƙarfe. Gabaɗaya an yi imanin cewa abubuwan da ba na ƙarfe ba a cikin ƙarfe galibi suna wanzu a cikin waɗannan sifofi: oxides: FeO, Fe2 O 3, M nO, Al2 O 3, SiO 2, M gO, da sauransu; Sulfides: M nS, FeS, da sauransu; Silicates: FeSiO 4, M nSiO 4, FeO · Al2 O3 · SiO2, da sauransu; Nitrides: AlN, Si3 N 4 da sauransu.

Abubuwan da ba na ƙarfe ba a cikin ƙarfe sun fito ne daga fannoni biyu: Na farko, ana samun su yayin aikin narkewa, wato, ana ƙara samfuran deroxidation na ferroalloys yayin ƙwanƙwasawa da samfuran oxyidation na ƙarfe da iska mai narkewa yayin aiwatar da simintin gyare-gyare. da ake kira incogenous inclusions. Irin waɗannan abubuwan gabaɗaya galibi suna da kyau kuma an rarraba su gaba ɗaya a cikin ƙarfe; na biyu, ana kawo su daga waje saboda dalilai daban -daban, da ake kira shigar kasashen waje. Irin waɗannan shigarwar galibi galibi ba su da tsari, suna da girma kuma ba a rarraba su, wanda shine sanadin fasa. Babban dalili shi ne ya fi cutarwa da karafa.

Ana samar da abubuwan da ba a haɗa su ba a cikin yanayi masu zuwa:

• Uring A lokacin aikin narkewa, samfuran deoxidation ba a kawar da su gaba ɗaya ba, ko zazzabi ya ragu yayin aikin zubar, kuma samfuran deoxidation da aka samu ta ci gaba da aiki ba su da lokacin yin iyo da kuma kasancewa a cikin narkakken ƙarfe. Wasu daga cikinsu sun wanzu a cikin tsarin matrix na ƙarfe azaman ƙananan barbashi, wasu kuma Sannan yana tarawa zuwa manyan barbashi na Al2O3), wasu kuma suna wanzu a cikin ƙarfe a cikin ingantaccen yanayin mafita (kamar M nO, F eO);
• TheAn aiwatar da bugawa da zubarwa, ana narkar da karfen da ke hulɗa da iska, da iskar shaka da ƙarfe Abubuwa na tsakiya sun haɗu don samar da sinadarin oxides na biyu kuma su zauna cikin narkakken ƙarfe; a lokacin ƙarfafawa na narkakken ƙarfe, ƙaramin narkar da FeS, FeO, da sauransu a ƙarshe an saukar da su cikin iyakokin hatsi da tsakanin dendrites saboda “zaɓin crystallization” na narkakken ƙarfe.

Shigo da ƙasashen waje: Irin wannan haɗaɗɗun abubuwa galibi suna cikin yashi, tsinke da ƙirar ƙirar da albarkatun ƙasa suka kawo. Abubuwan da ke narkewa na tsarin zubarwa ana birge su da lalata su ta narkakken ƙarfe. An riƙe su a cikin narkakken ƙarfe kuma galibi manyan abubuwan barbashi ne. Abubuwa.

Abubuwan da ba na ƙarfe ba suna narkar da su a cikin narkakken ƙarfe a yanayin zafi mai zafi, ko wanzu shi kaɗai a cikin narkakken ƙarfe, amma yayin da zazzabi ya faɗi da abun da ke ciki, matsin gas da sauran yanayi ke canzawa, asalin abubuwan da aka narkar da su a narkakken ƙarfe za su kasance kuma sun taru akan iyakokin hatsi yayin aiwatar da crystallization, kuma su zama kankanin raka'a waɗanda ke yanke haɗin tsakanin matrix ɗin ƙarfe na ƙarfe kuma suna samar da tushen ɓarna na farko, don haka ke haifar da fasa.

2 Alaƙar da ke tsakanin manyan abubuwan haɗawa da fasa fasa ƙarfe da matakan ragewa

Daga cikin abubuwan da ba na ƙarfe ba, babban abin da ke haifar da fasa ƙwanƙolin ƙarfe shine haɗarin sulfide, kuma galibi yana hulɗa da wasu abubuwan don ƙara haɗarin ƙarfe na ƙarfe. A cikin ƙarfe na ƙarfe, haɗarin sulfide sun kasu kashi uku:

• Rubuta Ⅰ-mai siffar zobe;
• Rubuta inter-point sarkar intercrystalline fim;
• Rubuta Ⅲ-an rarraba kusurwa mai kaifi.
• Daga cikin su, shigar da nau'in II shine mafi cutarwa ga ƙarfe, sannan nau'in III, sannan nau'in I shine mafi ƙanƙanta.

Haɗin sulfide yana da alaƙa da matakin deoxidation na ƙarfe da adadin ragowar aluminium a cikin ƙarfe. Lokacin da adadin ingantaccen bayani na aluminium yayi ƙasa kuma ragowar iskar oxygen ƙarami ne, ana iya samun haɗaɗɗen Nau'in I.

Deoxidizer yana da babban tasiri akan samuwar haɗawa da aikin ƙarfe. Sakamakon deoxidizing na hadaddun deoxidizer ya fi na deoxidizer guda ɗaya. Wannan saboda haɗaɗɗun abubuwan da aka haɗa ta hadaddun deoxidizer sun fi girma, waɗanda suke da sauƙin shawagi da cirewa. Idan narkakken ƙarfe ba shi da isasshen deoxidized, ƙila za a iya samun lalatattun ramuka kuma ƙila za a iya fashewa a cikin simintin ƙarfe. Koyaya, adadin aluminium da aka yi amfani da shi don ƙonewa na ƙarshe ya isa kawai don deoxidation kuma babu saura. Ƙarfin bayani mai ƙarfi na aluminium yana da ƙarancin ƙarfi, kuma isashshen oxygen ɗin ƙarami ne, wanda zai samar da nau'in II. Gabaɗaya, idan ana amfani da aluminium mai wuce kima don deoxidation, za a sami nau'in haɗawa na III. Yana da kyau a lura cewa idan an yi amfani da aluminium mai wuce kima, za a samar da ƙarin abubuwan nitride na aluminium tare da yin hazo tare da iyakokin hatsi, wanda ke haifar da karaya mai rauni kamar “dutse” kuma yana lalata aikin ƙarfe. Sabili da haka, ba shi da kyau a yi amfani da aluminium mai wuce kima don deoxidation. Adadin aluminium da aka ƙara a lokacin ƙera ƙarfe da adadin ragowar aluminium a cikin ƙarfe ba zai iya zama ƙasa da ƙasa ba.

Deoxidation tare da aluminium wata hanya ce da aka yi amfani da ita don lalata ƙarfe. Ana amfani da nau'ikan nau'ikan deoxidation iri biyu a cikin masana'antar masana'antu, ɗayan shine tsarin lalatawar aluminium, ɗayan kuma ana sarrafa sarrafa deoxidation na aluminium. Na farko shine amfani da aluminium don cire narkar da iskar oxygen a cikin ƙarfe gabaɗaya, sannan a cire yawancin abubuwan haɗin Al2O3 ta yiwu ta hanyoyi daban -daban na motsawa; na ƙarshen shine amfani da silicomanganese kawai don ƙarancin deoxidation, kuma tsananin sarrafa aluminium da aluminium a cikin ƙarfe. Alli abun ciki domin sarrafa abun da ke ciki, yanayi da ilimin halittar jiki na oxide inclusions precipitated a cikin karfe. Matsakaicin ƙimar deoxidation na tsohon ya fi 90, kuma samfurin deoxidation galibi Al2O3 ne; Adadin samfuran deoxidation wanda ƙarshen ƙarshen ya ragu sosai yana raguwa, kuma samfurin deoxidation na farko shine SiO2.

Za a iya cire abubuwan da suka haɗa da ƙasashen waje gwargwadon tushen su ta hanyar ɗaukar matakan da suka dace, yayin da abubuwan haɗin gwiwa ke buƙatar sarrafa su ta sabon fasaha na tsarin deoxidation da tsarin maganin alli.

A lokacin tsaftace ladle, busawa da ƙaramin kumfa argon a cikin narkakken ƙarfe yana da fa'ida ga cire samfuran deoxidation na farko.

Domin mafi kyawun cire abubuwan da ke cikin ƙarfe da rage fasa, aikin ƙusoshin yana ɗaukar matakai masu zuwa.

• (1) Shirya albarkatun ƙasa da kyau don hana shigar da ƙasashen waje.
• (2) Yi amfani da hanyoyin sarrafa ƙarfe masu dacewa: kamar ɗaukar isasshen iskar oxygen da tsarin rarraba wutar lantarki, tabbatar da wani saurin yanke hukunci don sanya haɗaɗɗen ruwa ya taso, da kuma kiyaye yanayin wutar makera mai kyau.
• (3) Yi amfani da deoxidizer mai haɗawa maimakon deoxidizer guda ɗaya.
• (4) Ƙananan ƙasashe ana ƙara su zuwa ladle bayan murhu don canza sifar haɗawa da rage haɗe -haɗe don rage ɗimbin simintin ƙarfe don tsagewa da haɓaka ruwa mai narkar da ƙarfe.
• (5) Domin sauƙaƙe cire abubuwan haɗawa, ban da tabbatar da isasshen zafin ƙarfe na ƙarfe, ya kamata a sanya narkakken baƙin ƙarfe a cikin ladle bayan bugun.

Bugu da ƙari, yin amfani da kayan ƙonawa masu inganci don tabbatar da cewa tsarin zubar yana da tsabta ko kuma yin amfani da matattara ma mahimman matakai ne don rage haɗewa.

3 Rare magani hadewar canjin ƙasa don cire haɗawa a cikin ƙarfe da ƙara hanyoyin

Ƙara ƙasa da ba kasafai tana da tasiri mai kyau akan cire haɗawa cikin ƙarfe. Rare ƙasa galibi ana amfani da shi don sarrafa sulfide a cikin ƙarfe, kuma yana iya deoxidize da deulfurize.

A cikin yanayin jefa-juyi, haɗaɗɗen M nS a cikin baƙin ƙarfe sune elliptical ko kusan madauwari. Manyan abubuwan da ake haɗawa da elliptical inclusions sun haɗa da M nO azaman ainihin da babban faɗin da ke kewaye da M nS ko M nSO. Bayan ƙara ƙasa da ba a saba gani ba, rarrabawa da haɗe-haɗe na abubuwan da aka haɗa da simintin gyare-gyare sun canza, kuma an maye gurbin haɗawar MnS da kusan lafiya mai siffa da tarwatsa haɗarin ƙasa. Don rage ƙarancin ƙasa mai kyau sosai, yakamata a haɗe oxide na ƙasa tare da wakilai masu rage ƙarfi (Ca-Si, Ca-B) sannan a ƙara su da narkakken ƙarfe, don yin rawar gyaran jiyya. Tare da ingantaccen gyare -gyaren gyare -gyare, haɗarin sulfide na iya haifar da haɗaɗɗiyar sifa mai siffa tare da babban narkewa, ƙarancin filastik da kaddarorin thermodynamic. Ana iya cewa ƙasa mai ɗanɗano da alli suna da kyau masu narkar da abubuwa masu kyau don haɗakar sulfide. Amfani da maganin haɗin gwiwa na RE-Ca zai iya inganta deoxidize, lalata, tsarkakewa, da ɓarna, sarrafa siffar da rarraba abubuwan da ba na ƙarfe ba, da haɓaka ingantattun kayan aikin injin ƙarfe-ƙarfe.

Don ci gaba da bincika tasirin ƙasa mai ɗanɗano a kan kaddarorin ƙarfe na ƙarfe, an gwada amfani da ƙarancin canjin canjin ƙasa a cikin ZG 35CrM o karfe. Matsakaicin ƙarar da aka yi amfani da ita shine YX 20, wanda ke ɗauke da 20.53 RE, 40.95 Si; Haɗin Si-Ca Ya ƙunshi 26.45 Ca da 57.07 Si.

Magungunan haɗin gwiwa yana ɗaukar hanyar ƙarawa a cikin ladle. Lokacin da aka ƙara ƙasa da ba a saba gani ba, dole ne a narkar da baƙin ƙarfe don hana ƙonewa lokacin da aka ƙara ƙasa mai ƙarancin ƙarfi, kuma don hana ta amsawa tare da raunin ladle. Yakamata a gasa tukunyar ƙasa da kyau kafin a ƙara ta. Hanyar takamaiman ita ce ƙayyade adadin RE da Si-Ca gwargwadon adadin narkakken ƙarfe a cikin ladle da yawan sulfur ɗin da ke ciki, karya RE da Si-Ca a cikin ƙananan ƙananan kuma haɗa su daidai, rufe su da zanen ƙarfe , da sauri saka aluminium don deoxidation na ƙarshe. Karfe mai narkarwa bayan ɓarna yana ci gaba da tayar da hankali, kuma ana kiyaye zafin zafin magani a cikin kewayon 1 600 ～ 1 650 ℃, sannan an cire slag ɗin, kuma an bar shi tsaye na mintuna 1 zuwa 2 don zubowa.

Dangane da ƙimar maidowa daban -daban, ana sarrafa ƙimar RE/S don ƙarancin ƙarancin ƙasa da abun cikin sulfur a cikin narkakken ƙarfe don samun sakamako mai lalacewa. Nazarin ya tabbatar da cewa lokacin da RE/S ≈3, haɗuwar M nS na iya lalacewa gaba ɗaya; lokacin da RE/S <3, ɓarna kawai za a iya samu; lokacin da S ≈0.02 a cikin ƙarfe, RE/S = 1.8 effect Tasirin lalacewar shine mafi kyau lokacin awanni 2.5.

Matsayin da ba kasafai ake amfani da shi na gyaran gyare -gyaren ƙasa ba shine musamman don tsarkake narkakken ƙarfe da sarrafa siffar haɗawa, rage haɗe -haɗe, kuma a lokaci guda kawar da tsarin Widmanstatten, tsaftace hatsi da microalloy. Wato, bayan ƙara wakili mai haɗaɗɗiyar ƙasa, ba za ta iya deoxidize da lalata kawai ba, har ma lokacin da RE/S ≥3 ～ 6, MnS za su zama haɗaɗɗen siffa, ta haka rage lahani na sulfur da hanawa ko rage fashewar zafi. Rare ƙasa yana da tasiri a canza abubuwan haɗawa a cikin narkakken ƙarfe. Siffar abu na rage fasa da tasirin a bayyane yake.

Gears da aka samar tare da ZG 35C rM o karfe suna da ƙima mai yawa kafin maganin gyaran mahaɗin, amma bayan gyaran gyare -gyaren mahaɗin, ƙimar raguwar ta ragu da sama da 40%, wanda ya sami sakamako bayyananne kuma ya sami fa'idodin tattalin arziƙi.

Kammalallen 4

• (1) Haɗawa a cikin narkakken ƙarfe yana ɗaya daga cikin manyan abubuwan da ke haifar da fasa fasa baƙin ƙarfe. Dabbobi daban -daban suna da hanyoyi daban -daban na samar da fasa.
• (2) Domin rage abubuwan da ba na ƙarfe ba a cikin narkakken ƙarfe da hana fasa fasa bututun ƙarfe, ya zama dole a yi aiki mai kyau a bangarorin shirye-shiryen albarkatun ƙasa, tsarin narkewa, aikin deoxidation, ladle tsaye, da gyaran magani.
• (3) Yin amfani da ƙasa mai ɗanɗano da alli da aka haɗa masu gyara don haɗaɗɗen ƙarfe mai narkewa shine ingantacciyar hanya don rage abubuwan da ba na ƙarfe ba a cikin narkakken ƙarfe, canza fasalin su, da rage fasa fasa bututun ƙarfe.

Da fatan za a adana tushe da adireshin wannan labarin don sake bugawa: Dangantaka Tsakanin Fasa -Fashe Karfe Da Hadawa A Karfe

Minghe Kamfanin 'Yan Wasa Masu Mutu aka sadaukar domin tsirar da samar da inganci da kuma high yi Gyare sassa (karfe mutu simintin sassa Range yafi hada da Thin-Wall Mutu Wasa,Hot Chamber Mutu Wasa,Cold Chamber Mutu Wasa), Zagaye Sabis (Mutuwar 'Yan Wasa,CNC machining,Motsa Motsa, Jiyya na sama) .Adadin al'ada Aluminium ya mutu, magnesium ko Zamak / zinc mutu simintin gyare-gyare da sauran buƙatun simintin maraba don tuntube mu.

Karkashin kulawar ISO9001 da TS 16949, Ana aiwatar da dukkan matakai ta hanyar daruruwan injunan jefa simintin da suka mutu, injunan axis 5, da sauran kayan aiki, tun daga masu fashewa zuwa na’urar Ultra Sonic masu wanki.Minghe ba kawai tana da kayan aiki na zamani ba amma kuma tana da kwararru ƙungiyar ƙwararrun injiniyoyi, masu aiki da sufetoci don tabbatar da ƙirar abokin ciniki ta zama gaskiya.

Manufactureran kwangilar masana'antar mutu. Abubuwan haɓakawa sun haɗa da sassan sanyi na sassan mutuɗar aluminum daga 0.15 lbs. zuwa 6 lbs., saurin canje-canje da aka saita, da aikin inji. Sabis-ƙarin ayyuka sun haɗa da gogewa, faɗakarwa, lalatawa, fashewar harbi, zane, zane, rufi, haɗuwa, da kayan aiki. Abubuwan da aka yi aiki tare sun haɗa da allo irin su 360, 380, 383, da 413.

Zinc ya mutu don jefa ƙirar ƙira / sabis na injiniya tare. Custom manufacturer na daidaici tutiya mutu simintin gyaran kafa. Castananan 'yan simintin gyare-gyare, pressurean ƙwanƙwasa masu juzu'in juzu'in simintin gyare-gyaren juzu'ai, ƙera simintin gyare-gyare na al'ada, ɓangaren mutu da' yan wasa masu mutuwa masu zaman kansu da ƙofar da aka hatimce za a iya ƙera su. Za'a iya kerarrar 'yan simintin a tsayi da faɗi har zuwa 24 a ciki. A cikin +/- 0.0005 a cikin. Haƙuri.  

ISO 9001: 2015 bokan masana'anta ta mutu magnesium, Abubuwan haɓaka sun haɗa da matsin lamba na magnesium mai matsi mai yawa har zuwa tan 200 mai ɗumi mai zafi & 3000 ton mai sanyi, ƙirar kayan aiki, gogewa, gyare-gyaren, inji, foda & zanen ruwa, cikakken QA tare da damar CMM , taro, marufi & isarwa.

ITAF16949 bokan. Servicearin Sabis ɗin Gyare Hadawa zuba jari,yashi,Kushin nauyi, Stauren ɓoye ɓoye,Siffar Centrifugal,Cast Vacuum,Dindindin Mould Gyare, .Hanyoyin iyawa sun hada da EDI, taimakon injiniya, ingantaccen samfuri da aiki na sakandare.

Fitar Masana'antu Abubuwan Nazarin sassa don: Motoci, Bikes, Jirgin sama, kayan kiɗa, Jirgin ruwa, Na'urorin hangen nesa, na'urori masu auna sigina, na'urori masu auna sigina, Na'urori, Kayan lantarki, ,unshi, Clocks, Inji, Injiniya, Kayan Kaya, Kayan Jiki, Jigs, Telecom, Haske, Kayan aikin likita, Na'urar daukar hoto, Robobi, Sassaka, kayan sauti, kayan wasanni, Kayan aiki, Kayan wasa da ƙari. 

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By Minghe Mutu Wasa Wasa | Categories: Labarai masu Taimakawa |Material Tags: Gyare Aluminum, Zinc Gyare, Fitar Magnesium, Castan Wasanni, Bakin Karfe Cast, Fitar tagulla,Gyare Tagulla,Fitar Bidiyo,Tarihin Kamfanin,Aluminum Mutu Gyare | Comments Off