Inqubo ye-graphitization yensimbi yensimbi nezinto ezithinta ukwenziwa graphitization yensimbi yensimbi

 Inqubo ye-graphitization yensimbi yensimbi

    Inqubo yokwakheka kwe-graphite ensimbi yensimbi ibizwa ngokuthi inqubo ye-graphitization. Inqubo eyisisekelo yokwakheka kwensimbi yensimbi inqubo yokwakheka kwe-graphite ensimbi yensimbi. Ngakho-ke, kubaluleke kakhulu ukuqonda izimo kanye nezici ezinomthelela wenqubo ye-graphitization ukuqonda kahle isakhiwo nezakhiwo zensimbi yensimbi.

    Ngokomdwebo wombuso ombaxambili we-Fe-C alloy, inqubo ye-graphitization yensimbi yensimbi ingahlukaniswa ngezigaba ezintathu:

    Isigaba sokuqala isigaba se-liquid hypoeutectic crystallization stage. Kubandakanya i-crystallization eqondile ye-graphite eyinhloko evela esigabeni samanzi sezingxenye ze-hypereutectic kanye nesigaba samanzi sezinto ze-eutectic ukukhanyisa i-austenite plus graphite, i-graphite eyenziwe ngokubola kwe-cementite eyinhloko kanye ne-cementite eutectic ngesikhathi sokushisa okuphezulu.

    Isigaba esiphakathi yisigaba esiphakathi kokuguqulwa kwe-eutectic nokuguqulwa kwe-hypoeutectoid. Kubandakanya imvula eqondile ye-graphite yesibili evela ku-austenite ne-graphite eyakhiwe ukubola kwe-cementite yesibili kuleli banga lokushisa.

    Isigaba sesithathu, okungukuthi, isigaba senguquko sesaphulelo esiphelele. Kubandakanya i-eutectoid graphite eyakhiwe ngesikhathi soguquko lokugoqa kanye ne-graphite eyakhiwe ukubola kwe-cementite ye-eutectoid ngesikhathi sokuncishwa.

2. Izici ezithinta i-graphitization yensimbi yensimbi

    Isakhiwo sensimbi yensimbi sincike ebangeni le-graphitization. Ukuze uthole ukwakheka okudingekayo, ukhiye ukulawula izinga le-graphitization. Ukuzijwayeza kufakazele ukuthi izinto eziningi ezifana nokwakheka kwamakhemikhali ensimbi, izinga lokupholisa amakristalu ensimbi, ukushisa nokuma kwensimbi encibilikisiwe, njll., Konke kuthinta i-graphitization kanye ne-microstructure yensimbi yensimbi.

1. Ithonya lokwakheka kwamakhemikhali

    Phakathi kwe-C, Si, Mn, P, ne-S ejwayelekile ku-cast iron, u-C no-Si kukhona izinto ezithuthukisa ngokuqinile i-graphitization, futhi i-S yinto evimbela kakhulu i-graphitization. Eqinisweni, umthelela wento ngayinye ekhonweni le-graphitization yensimbi eyinsimbi unzima kakhulu. Ithonya lalo lihlobene nokuqukethwe kwento ngayinye uqobo nokuthi ngabe liyahlangana yini nezinye izinto, ezinjengeTi, Zr, B, Ce, Mg, njll. Ce <0.01%, T <0.08%), bakhombisa umphumela wokukhuthaza i-graphitization.

2. Umphumela wesilinganiso sokupholisa

    Ngokuvamile, izinga lokupholisa lokusakazwa livame ukuhamba kancane, uma livuna i-crystallization kanye noguquko ngokwengeziwe ngokomdwebo wombuso wohlelo oluzinzile lwe-Fe-G, kanye ne-graphitization ephelele; ngokuphambene nalokho, kuyathandeka nge-crystallization kanye noguquko ngokuya ngomdwebo wombuso we-Fe-Fe3C metastable system. Ekugcineni ngathola insimbi emhlophe. Ikakhulukazi ku-graphitization esiteji se-eutectoid, njengoba izinga lokushisa liphansi, izinga lokupholisa liyakhuphuka, nokwanda kwama-athomu kunzima, ngokuvamile kunzima ukuqhubekisela phambili ngokuphelele i-graphitization esigabeni se-eutectoid.

    Izinga lokupholisa insimbi yensimbi yinto ebanzi, ehlobene nokushisa okuthelayo, ukuqhuba okushisayo kwento yokubumba kanye nobukhulu bodonga lokusakaza. Futhi imvamisa lezi zinto zinomthelela ofanayo ezigabeni ezimbili.

    Ukunyusa izinga lokushisa okuthululelayo kungabambezela izinga lokupholisa lokusakazwa, okukhuthaza isigaba sokuqala sokukwenza kube lula kanye nesigaba sesibili se-graphitization. Ngakho-ke, ukukhuphula izinga lokushisa lokuthela kungaphazamisa i-graphite ngezinga elithile, futhi kungakhuphula nokuguqulwa kwe-eutectoid.

3. Umphumela wokushisa ngokweqile nokushisa okuphezulu ukuma kwensimbi yensimbi

    Ngaphakathi kwebanga elithile lokushisa, ukwandisa ukushisa okushisa ngokweqile kwensimbi encibilikisiwe nokwelula isikhathi sokuma okushisa okuphezulu kuzoholela ekucwengweni kwesakhiwo esenziwe nge-graphite ku-iron yensimbi futhi kwandise amandla wensimbi ebunjiwe. Uma i-superheat yanda ngokwengeziwe, ikhono le-nucleation lensimbi lizokwehla, futhi i-graphite morphology izoba buthakathaka, futhi kuzovela ngisho ne-cementite yamahhala, ezokwehlisa amandla, ngakho-ke kukhona 'ukushisa okubucayi'. Izinga lokushisa elibucayi lincike ekwakhekeni kwamakhemikhali wensimbi encibilikisiwe nezinga lokupholisa lokusakaza. Ngokuvamile kukholakala ukuthi ukushisa okubucayi kwensimbi ejwayelekile ejwayelekile yensimbi icishe ibe yi-1500-1550 ℃, ngakho-ke kuhlala kunethemba lokuthi ukushisa kwensimbi ngokuthepha kuphakeme.

Sicela ugcine umthombo nekheli lale ndatshana ukuze uphinde uprintwe: Inqubo ye-graphitization yensimbi yensimbi nezinto ezithinta ukwenziwa graphitization yensimbi yensimbi

UMinghe Inkampani yeDie Casting anikezelwe ekukhiqizeni nasekuhlinzekeni ikhwalithi nokusebenza okuphezulu Izingxenye Zokulingisa (izingxenye zensimbi zensimbi zokufa zisebenza ikakhulukazi zibandakanya I-Thin-Wall Die Casting,I-Hot Chamber Die Casting,Cold Chamber die Casting), Insizakalo Eyindilinga (Insiza Yokulingisa,ICnc Machining,Ukwenza Okubandayo, Surface Treatment) .Noma ikuphi ukusakazwa kwe-Aluminium die, i-magnesium noma i-Zamak / zinc die casting nezinye izidingo zokuphosa zamukelekile ukuxhumana nathi.

Ngaphansi kokulawulwa kwe-ISO9001 ne-TS 16949, Zonke izinqubo zenziwa ngamakhulu emishini esezingeni eliphakeme yokufa, imishini ye-5-axis, nezinye izikhungo, ezisukela kuma-blasters kuya kumishini yokuwasha ye-Ultra Sonic.Minghe akagcinanga ngemishini esezingeni eliphezulu kepha futhi unobuchwepheshe iqembu lonjiniyela abanolwazi, ama-opharetha nabahloli ukwenza ukwakheka kwekhasimende kugcwaliseke.

Umenzi wenkontileka yokufa kwabasikiwe. Amandla afaka izingxenye ezibandayo ze-aluminium die casting ezivela ku-0.15 lbs. kuye ku-6 lbs., Ukusetha ushintsho olusheshayo, nemishini. Izinsizakalo ezingezwe ngenani zifaka phakathi ukupholisha, ukudlidliza, ukuphazamisa, ukuqhumisa ngokudubula, ukupenda, ukuhlobisa, ukumboza, ukuhlangana nokusetshenziswa kwamathuluzi. Izinto zokusebenza ezisetshenzisiwe zifaka ama-alloys afana no-360, 380, 383, no-413.

I-Zinc die casting design usizo / izinsizakalo zobunjiniyela ezihambisanayo. Umenzi wangokwezifiso we-precision zinc die castings. Ukusakazwa okuncane, ukukhishwa kwengcindezi ephezulu, ukusikeka kwesikhunta esiningi, ukujikijelwa kwesikhunta okuvamile, ukufefa kwamayunithi kanye nokuzimela okuzimele kanye nokuvalwa okuvaliwe komgodi kungenziwa. Ama-Castings angenziwa ngobude nobubanzi obufinyelela ku-24 in. Ku +/- 0.0005 in. Ukubekezelelana.  

I-ISO 9001: Umkhiqizi oqinisekisiwe ka-2015 we-die cast magnesium, Amandla afaka i-high-pressure magnesium die casting up to 200 ton chamber hot & 3000 ton cold chamber, designing designing, polishing, molding, machining, powder & liquid paint, QA full with CMM amakhono , inhlangano, ukupakisha nokulethwa.

Kuqinisekiswe i-ITAF16949. Insiza Eyengeziwe Yokulingisa Faka ukukhipha utshalomali,ukuphonsa kwesihlabathi,Ukuphonswa kwamandla, Lost Foam Ekubunjweni,I-Centrifugal Casting,Ukuphoswa Kokuqothula,Permanent Isikhunta Ukulingisa, Amakhono afaka i-EDI, usizo lobunjiniyela, ukumodeliswa okuqinile nokucutshungulwa kwesibili.

Izimboni Zokulingisa Izingxenye Zamacala Ezifundo Zezimoto: Izimoto, Amabhayisikili, Izindiza, Izinsimbi Zomculo, I-Watercraft, Amadivayisi we-Optical, Izinzwa, Amamodeli, Amadivayisi we-elekthronikhi, Ukuvaleka, Amawashi, Imishini, Izinjini, Ifenisha, Ubucwebe, AmaJig, Telecom, Ukukhanyisa, Amadivayisi Wezokwelapha, amadivayisi wezithombe, Amarobhothi, okubaziwe, okokusebenza komsindo, okwezemidlalo, i-Tooling, Amathoyizi nokuningi. 

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By Umkhiqizi weMinghe Die Casting | Izigaba: Izindatshana Eziwusizo |Material Omaka: I-Aluminium Casting, Zinc Ukulingisa, Ukulingiswa kweMagnesium, I-Titanium Casting, Insimbi Engagqwali, Brass Ekubunjweni,Ukulingiswa kweBronze,Isakaza ividiyo,Umlando wenkampani,I-Aluminium Die Casting | Amazwana Off