Ukuqoqwa kwamaphutha ajwayelekile nezindlela zokuvimbela ekwehliseni nasekucimeni

    I-Carburizing nokucima empeleni kuyinqubo ehlanganisiwe, okuyi-carburizing + quenching. Sivame ukusetshenziselwa ukukhuluma ngalokhu okubili ndawonye, ​​ngoba izinqubo ezimbili eziphothulwe kwimishini efanayo yizona ezivame ukuhlangana nazo ekukhiqizeni (kepha kukhona futhi nokupholisa umoya okwehlisayo, ukukhulisa ukupholisa okuhamba kancane bese ukuvuselela nokuqeda izinqubo, futhi okwesibili ukucisha. Inqubo) Ngemuva kwalokho ezinye zezimo ezingathandeki ezihlangabezane nazo ekukhiqizeni ziyizinkinga ze-carburizing, ezinye ziyizinkinga zokucima, kanti ezinye zingumphumela wemiphumela ehlanganisiwe ye-carburizing kanye nokucisha.

Siyazi ukuthi zonke izinqubo zokwelashwa kokushisa azihlukaniswa nezinkinga ezintathu eziyinhloko: ukushisa, ukulondolozwa kokushisa nokupholisa. Ngokuningiliziwe, kufaka phakathi ukushisa kokushisa, isilinganiso sokushisa, isikhathi sokubamba, izinga lokupholisa, futhi-ke, nezinkinga zomkhathi. Ngakho-ke uma kukhona okungahambi kahle, sizojwayela ukuhlaziya imbangela kulezi zici.

       Okwe-carburizing nokucisha, sihlala sivivinya lezi zinkomba: ukubukeka komkhiqizo womkhiqizo, ubunzima be-surface, ubunzima be-core, ukujula kwesendlalelo se-carburized, (ukujula kwesendlalelo esiqinile, ukujula kwesendlalelo esiqine ngokuphelele) kwesakhiwo se-metallographic, kanye ne-deformation. Ake sabelane ngemibono yami ngalezi zinkomba ngokulandelana.

1. Inkinga yokubukeka
      1. Isikali se-oxide: Lokhu ikakhulukazi kungenxa yokuvuza kwemishini, igesi yenkampani yenethiwekhi engcolile, noma okuqukethwe kwamanzi. Udinga ukuthola isizathu kusuka kwimishini nezinto zokusetshenziswa.

       2. Enye inkinga eyinkinga kakhulu inkinga yamabala, okuyisidingo esisha futhi esiyinselele sokwelapha ukushisa ezikhathini zanamuhla. Izizathu ziyinkimbinkimbi futhi zijule kakhulu.

ezimbili. Ubulukhuni obungafanelekile
1.Ukuqina okuphezulu (akukhulunywa ngakho)

       Ubulukhuni obuphansi: Kunezimo ezimbili, eyodwa i-carburizing engafanelekile. Isizathu kungaba ukuthi isendlalelo se-carburized sincane kakhulu ukuhlangabezana nezidingo zemidwebo, (ungqimba lwe-carburized alungenile), noma isikali esikhethiwe sokuthola sidlula uhla olukhona lwe-carburized ebekezelelekayo, oluzodiliza ungqimba lwe-carburized.

Isixazululo: Gcwalisa i-seepage bese ulandela irula yokuhlola. I-JBT 6050-2006 "Izimiso Ezijwayelekile Zokuhlolwa Kokuqina Kokuqina Kwezingxenye Zensimbi" Ukujula kwesendlalelo se-carburized empeleni kungumsebenzi wokushisa, isikhathi, nekhono lekhabhoni. Kusuka ezicini ezingenhla, singabheka izindlela zokwandisa izinga lokushisa lokushisa, sandise isikhathi sokubamba, futhi sandise amandla we-carburizing. (Vele, ukulungiswa kwepharamitha ngayinye kufanele kuhlanganiswe ngokuphelele nezidingo zemishini yakho kanye nemikhiqizo) Kungenzeka futhi ukuthi kube khona ngenxa yezinhlangano ezingezona ezehhashi ngaphezulu. Esinye isimo senzeka lapho ubulukhuni buphansi, okungukuthi, i-carburizing ifanelekile, kepha ukucima akuvumelekile. Ngokuvamile, ayicinywa. Lesi simo sinzima kakhulu, njengoba isisho sithi: ukwelashwa kokushisa kuncike ekufudumaleni kwezindawo ezintathu zokuhlala, nokupholisa kwezindawo eziyisikhombisa. Kubonisa nokuthi inqubo yokupholisa ithatha inqubo yokwelashwa kokushisa.

Okulandelayo ukuhlolwa kokuqhathanisa engiklanyelwe. Ungaxoxa ngomphumela wokupholisa ku-hardness.

Thatha amaqembu ama-3 emigoqo yokuhlola enezinto ezahlukahlukene kepha ukucaciswa nobukhulu obufanayo, ubukhulu bawo obungu- Φ20mmX100mm. (Sibiza inombolo engu-20 yebha yokuhlola yensimbi engu-1, ibha yokuhlola engu-20Cr engu-No no-2CrMnTi yokuhlola ibha engu-20. Imigoqo yokuhlola ishiswa ngokushisa okufanayo kusetshenziswa inqubo efanayo. Uma ucabanga ukuthi ukujula kwesendlalelo se-carburized semigoqo yokuhlola engu-3-0.6mm (ps: ukucabanga kusungulwa kuphela esimweni esifanelekile).

Sicela ubheke le mibandela elandelayo:

a. Qeda ukucima ngaphansi kwezimo ezifanayo

b. Ukucima okuphakathi uwoyela opholile, uwoyela osheshayo, amanzi acacile, amanzi anosawoti

 c. Kwindlela efanayo ngaphandle kokuvusa nokuqinisa ngamandla, imigoqo yokuhlola emithathu ithathwa ngamaqembu amabili ukuze ihlolwe.

Ngemuva kokuphothulwa kwe-carburizing, iqembu i-A licinywa ngama-degree angama-800, futhi iqembu le-B licinywa ngama-860 degrees. Yini ukuhleleka kobulukhuni babo kusuka phezulu kuye phansi? Ungayi-oda kanjani ungqimba oluqinile (nge-550HV1.0 njengomkhawulo) kusuka ekujuleni kuye ekujuleni? Thatha imigoqo emibili yokuhlola yento efanayo bese uqhathanisa futhi uhlole, yiliphi iqembu elingathola ubulukhuni obuphezulu bokucima nokujula kwesendlalelo okuqinisiwe okusebenzayo?

 Ngabe kungaphethwa ngemiphumela yokuhlolwa engenhla ukuthi ukujula kwesendlalelo se-carburized akulingani nokujula kongqimba oluqinile olusebenzayo, futhi ukujula kwesendlalelo esiqinisiwe uqobo kuthinteka ukuqina kwento, izinga lokushisa elicimayo, nokupholisa isilinganiso. Izici zokupholisa nokuqina kwamandla okuphakathi kokupholisa nakho kuthinta umphumela wokucima. Lokhu okungenhla kungukubukwa kwabantu, uma kukhona ukungapheleli, ungangeza. Vele, umphumela wosayizi wezingxenye nawo uthinta umphumela wokuqina.

Ngicabanga ukuthi umhloli onolwazi angathola imbangela yangempela yobulukhuni obuphansi ngokuhlela nokuhlanganisa ezinye izindlela zokuhlola, bese ethola imbangela yangempela yokuyixazulula; njengengcweti, uma ujwayelene nezici zezinto ezivamile zensimbi, ukusebenza kokupholisa kwemishini yayo naphakathi kufinyelele ezingeni elithile lokuqashelwa, okusiza kakhulu ekwakhiweni kwezinqubo ze-carburizing and quenching.

        3.Ukuqina okungalingani: ukushisa okufanayo kwesithando somlilo (kuthinta ukufana kwe-carburizing), ukwakheka kwemishini, ukusakazwa komkhathi, ukulayishwa kwesithando somlilo, (kuthinta ukufana kwesendlalelo se-carburizing, futhi ngasikhathi sinye kuthinta ukufana okucimayo)

        4. Ubulukhuni obuyisisekelo abufanelekile. Kuphezulu kakhulu: izinga lokushisa elicimayo liphezulu kakhulu, ukuqina kwento kuyinto enhle kakhulu, umkhawulo ophezulu wekhabhoni ne-alloy ukwakheka, futhi isilinganiso sokupholisa esiphakathi sishesha kakhulu. Ubulukhuni obuyisisekelo buphansi: okuphambene nalokho.

Isibonelo sokwabelana: 20 # steel 1.5mm umkhiqizo, izidingo: ukungena kokungena ungqimba 0.2-0.4mm core HV250, abanye abangane embonini efanayo bacabanga ukuthi izidingo azinangqondo, (wonke umuntu kufanele azi ukuthi ubunzima obukhulu be-20 # steel slab martensite kuzoba HV450- 470) Ukuxazulula le nkinga, kufanele siqale siqonde izici zalokhu okubalulekile: kufaka phakathi ukuqina nokuba lukhuni.

Bese uhlanganisa lezi zinto ezibalulwe ngenhla ezithinta umphumela wokucima, bese uthola izindlela zokushisa nokupholisa. Kulokhu, okokusebenza kulungisiwe. Singathola indlela kusuka kuzinga lokushisa elicishayo nezinga lokupholisa. Lo mkhiqizi kwenzeka esebenzisa uwoyela onejubane elikhulu. Uma ukunciphisa ukuqedwa kokucima kungahlangabezani nezidingo, singanciphisa nokushisa okucimayo. Indlela.

Noma kunjalo umusho ofanayo, osuka kuma-degree angama-860-760, (lapho izinga lokushisa lehliselwa ezingeni elithile, inani elithile le-ferrite lizonqampunuka lisuka kwi-austenite ephezulu ekhanda, nobulukhuni buzokwehla ngalesi sikhathi. izinga lokushisa liyancipha, lapho inani le-ferrite lincipha ngokwengeziwe, lapho ubunzima buyancipha.

Nasi isikhumbuzi: Kuyadingeka ukuhlanganisa ngokuphelele izimo ezikhona zemishini bese wenza impikiswano ngenkomba ekhethekile evumayo yokungena okungajulile.

3. Isendlalelo se-carburized noma ungqimba we-carburized osebenzayo ujulile futhi ujule

Njengoba kushiwo ngaphambili, ukujula kwesendlalelo sokungena kungumsebenzi ophelele wokushisa, isikhathi, kanye nokuhlushwa kwekhabhoni. Ukuxazulula le nkinga, kufanele siqale ngokushisa okushisa, isivinini sokushisa, isikhathi sokubamba, isivinini sokupholisa, nokulawula i-gradient ye-carbon concentration ku-carbon layer. Ukuphakama kwezinga lokushisa, isikhathi eside, nokuphakama kwamandla ekhabhoni, kujula ungqimba lokungena, futhi okuphambene nalokho.

Kepha empeleni, kungaphezulu kakhulu kwalokho okulula. Ukuklama inqubo ye-carburizing, kufanele futhi ucabangele okokusebenza, umthamo wesithando somlilo, izici zikawoyela, ukwakheka kwe-metallographic, ukuqina kwezinto ezibonakalayo, i-carbon concentration gradient kusendlalelo se-carburized kanye nezinga lokupholisa. Nezinye izinto eziningi. Lokhu kungahlaziywa kubhekiswe esimweni sangaphambilini sobulukhuni obuphansi, futhi ngeke kuchazwe ngokujulile.

Okwesine, inhlangano ye-metallographic

I-martensite eyeqile: impahla eluhlaza inezinhlamvu ezigqamile, noma ayijwayelekile, futhi izinga lokushisa le-carburizing liphezulu kakhulu. Isixazululo: ukujwayela noma ukujwayela okuningi, (kunconywa ukuthi izinga lokushisa elejwayelekile libe ngamazinga angama-20-30 ephakeme kunamazinga okushisa we-carburizing) Uma kunokwenzeka, cabanga ngokunciphisa umzimba bese upholisa kancane bese uvuselela futhi ucime

      I-Paralympic eyeqile: izinga lokushisa elicimayo liphezulu kakhulu, okuqukethwe kwekhabhoni ku-austenite kuphakeme kakhulu (ikhabhoni engenzeka iphezulu kakhulu). Isixazululo: Ukusakazwa okugcwele nezimo zemvume kunganciphisa izinga lokushisa elicimayo, ukushisa okuphezulu okushisa nokushisa nokuqeda, noma ukwelashwa kwe-cryogenic.

      I-carbide eyeqile: okuqukethwe kwekhabhoni okuphezulu kakhulu ku-austenite (amandla aphezulu kakhulu ekhabhoni), inqubo yokupholisa ehamba kancane kakhulu, imvula ye-carbide

      Isixazululo: sakaza ngokuphelele, lawula izinga lokupholisa, ukunciphisa umehluko wezinga lokushisa phakathi kwe-carburizing nokucima ngangokunokwenzeka, futhi usebenzise izinga lokushisa eliphansi noma ukucisha kwe-sub-temporse kancane ngangokunokwenzeka. Uma le nqubo kufanele isetshenziswe, umthwalo wesithando somlilo kufanele ulawulwe. Ake sicabange: imishini efanayo ishiswa ngo-920 ° C bese icishwa ku-820 ° C. Umthamo wesithando ngu-1000kg no-600kg, futhi izinga lokupholisa liyafana? Yikuphi okuzothatha isikhathi eside? Yiliphi ibanga le-carbide eliphakeme?

Amahlanu. Okungeyona ihhashi ne-oxidation yangaphakathi

 I-oxidation yangaphakathi: Ukuphendula phakathi kwezinto ezihlanganisa izinto ezifana ne-chromium, i-manganese ne-molybdenum ensimbi nomoya we-oxidizing osemkhathini (ikakhulukazi i-oxygen, amanzi, i-carbon dioxide), eqeda izakhi ezihlanganisa i-matrix, okuholele ekwehleni ekuqineni kwendaba. Isakhiwo senethiwekhi emnyama singabonakala ngaphansi kwe-microscope, ingqikithi yayo isakhiwo se-troostite esitholwe ukuqedwa kwezinto ezixubayo ku-matrix kanye nokwehla kokuqina.

         Isixazululo ukuthola izindlela zokukhuphula izinga lokupholisa kwaphakathi, ukuqinisa amandla okucima, nokunciphisa isimo se-oxidizing esithandweni (qinisekisa ubumsulwa bezinto ezisetshenzisiwe nezisizayo ze-carburizing, ukunciphisa inani lomoya olinganiselayo, ukulawula ukulinganisela umswakamo womoya, futhi uqinisekise ukuthi okokusebenza akuvuza. Isisi esanele) Imishini ejwayelekile kunzima ukuyisusa. Kuthiwa imishini yokucindezela i-vacuum carburizing ingaqedwa ngokuphelele. Ngaphezu kwalokho, ukudubula okunamandla kunganciphisa nezinga le-oxidation yangaphakathi.

Ngiye ngafunda imibono yabanye ochwepheshe, kanti abanye bakholelwa ukuthi i-ammonia eyeqile kwinqubo ye-carbonitriding nayo ingadala ukungabi namandla kakhulu. Mina ngokwami ​​nginombono ohlukile kulokhu: mhlawumbe kubangelwa okuqukethwe kwamanzi ngokweqile e-ammonia? Ngoba ngichayeke ezinqubweni eziningi ze-carbonitriding, azikho izicubu ezisobala ezingezona ezehhashi ezitholakele lapho kuhlolwa umkhiqizo. (Kepha angicabangi ukuthi lo mbono awulungile) Ezinye izimboni zemishini yakwamanye amazwe zinamathela kakhulu ekungeniseni i-oxidation kwangaphakathi, ikakhulukazi imboni yamagiye. Ekhaya, ukujula ngokuvamile kuyadingeka ukuthi kungabi ngaphezu kuka-0.02mm njengofanelekile.

        I-non-martensitic: isakhiwo se-non-martensitic sivela ebusweni besendlalelo se-carburized ngenxa ye-carburization noma izinkinga zokucima ngemuva kokucima, njenge-ferrite, i-bainite, futhi-ke, uhlobo lwe-oxidation lwangaphakathi lwe-troostite. Indlela yokukhiqiza ifana ne-oxidation yangaphakathi, futhi isixazululo siyafana.

Isithupha. Inkinga yokushintsheka

        Le yinkinga yohlelo, futhi futhi iyinkinga enzima kakhulu kubasebenzi bethu abenza ukwelashwa kokushisa. Kuqinisekisiwe kusuka ezicini eziningana zokupholisa okuphakathi kwenqubo eluhlaza. Okuqukethwe okungenhla kungokuhlangenwe nakho komuntu siqu kuphela. Uma kukhona ukungahambisani, wamukelekile ukungilungisa, ngiyabonga.

Sicela ugcine umthombo nekheli lale ndatshana ukuze uphinde uprintwe:Ukuqoqwa kwamaphutha ajwayelekile nezindlela zokuvimbela ekwehliseni nasekucimeni

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. 

Yini esingakusiza ukuthi uyenze ngokulandelayo?

∇ Iya ekhasini eliyisiqalo For I-Die Casting China

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