High-Amandla Gray Cast Iron Ukuncibilikisa Technology

Lo mbhalo wethula ukuthi ungabuthola kanjani ubungcweti bokuncibilikisa insimbi obuphezulu obunamandla ngaphansi kwezimo zokulinganiswa kwekhabhoni elinganayo nezidingo zokusebenza okungcono kunqubo yokuncibilikisa isithando somlilo kagesi, nokuthi ungazilawula kanjani izinto zokulandela umkhondo zento.

Amazwi Key: grey cast iron, okulingana nekhabhoni, izakhiwo zemishini, icubungula izakhiwo, trace izakhi

Inkomba yokulawula insimbi yokuncibilikisa yempunga yendabuko ingaphansi kwekhabhoni ephezulu yensimbi (C: 2.7 ~ 3.0, Si: 2.0 ~ 2.3, Mn: 0.9 ~ 1.3). Yize izinto ezinjalo zingahlangabezana nezidingo zezinto ezibonakalayo zomshini, ukusebenza kwazo ekusetshenzisweni nasekucubungulweni Ukusebenza kubi. Ngokukhula nokwandiswa kwemakethe yenkampani, imikhiqizo eyanda kakhulu yokusakaza enobunzima obuphakeme nezidingo zekhwalithi ephezulu yezobuchwepheshe ifakiwe kulandelana lokukhiqizwa kwe-MINGHE, ikakhulukazi lapho iMINGHE isebenzisa inqubo yokuncibilikisa isithando somlilo kagesi ukufaka esikhundleni senqubo yokuncibilikisa i-cupola.

Ukuthola i-carbon ephezulu enamandla alinganayo okusansimbi ngaphansi kwezimo zokuncibilikisa isithando somlilo ukuze kuhlangatshezwane nezimfuneko zoku-oda amakhasimende kwakuyisihloko socwaningo ngaleso sikhathi. Lo mbhalo uchaza ubuchwepheshe bokukhiqiza bensimbi ephezulu enamandla ompunga ngaphansi kwezimo zokuncibilikisa isithando somlilo.

Izici Zokuthinta Ukusebenza Kwezinto

1.1 Umphumela wokulingana kwekhabhoni kuzinto ezibonakalayo

Izici eziyinhloko ezinquma izakhiwo zensimbi eyimpunga yensimbi yi-graphite morphology kanye nezici ze-matrix yensimbi. Lapho okulingana nekhabhoni (CE = C + 1 / 3Si) kuphakeme, inani le-graphite liyakhula, nesimo se-graphite siba sibi uma izimo zokufukamela zingezinhle noma kunemikhondo eyingozi. I-graphite enjalo inciphisa indawo esebenzayo ye-matrix yensimbi engathwala umthwalo, futhi ibangele ukugxila kokuxineka lapho kuthwalwa umthwalo, ukuze amandla e-matrix ensimbi angakwazi ukusetshenziswa ngokujwayelekile, ngaleyo ndlela anciphise amandla ensimbi ekhonjiwe. Phakathi kwezinto zokwakha, i-pearlite inamandla amahle nobulukhuni, kuyilapho i-ferrite inesisekelo esithambile namandla aphansi. Njengoba inani le-C ne-Si lenyuka, inani le-pearlite lizokwehla futhi nenani le-ferrite lizokhuphuka. Ngakho-ke, ukwanda kokulingana kwekhabhoni kuzothinta ukuqina kokuphonsa izinsimbi zensimbi nobulukhuni bebhizinisi lokusakaza kukho konke ukwakheka kwe-graphite nesakhiwo se-matrix. Ekuphatheni kwenqubo yokuncibilikisa, ukulawulwa kokulingana kwekhabhoni kuyinto ebaluleke kakhulu ukuxazulula ukusebenza kwempahla.

1.2 Umthelela wezinto ezihlanganisa izinto ezintweni ezibonakalayo

Izinto ezixubayo ku-grey cast iron ikakhulukazi zibhekisa kuMn, Cr, Cu, Sn, Mo nezinye izinto ezithuthukisa ukwakheka kwe-pearlite. Okuqukethwe yilezi zinto kuzokuthinta ngqo okuqukethwe yi-pearlite. Ngasikhathi sinye, ngenxa yokwengezwa kwezakhi ze-alloying, icolisiswa ngezinga elithile. Ukwengezwa kwe-graphite kunciphisa noma kunyamalale inani le-ferrite kumatrix, kuyilapho i-pearlite icolisiswa ngezinga elithile, futhi i-ferrite ekuyo isisombululo esiqinile esiqiniswa ngenxa yenani elithile lezinto ezihlanganayo, ukuze insimbi eyakhiwe njalo a ephakeme Ukusebenza kwamandla. Ekulawuleni inqubo yokuncibilikisa, ukulawulwa kwe-alloy nakho kuyindlela ebalulekile.

1.3 Umthelela wenkokhiso isilinganiso ezintweni

Esikhathini esedlule, besilokhu sigcizelela ukuthi inqobo nje uma ukwakheka kwamakhemikhali kuhlangabezana nezidingo zemininingwane, kufanele sikwazi ukuthola umbono ohlangabezana nezinto ezijwayelekile zomshini wento leyo, kepha empeleni lo mbono ubona kuphela amakhemikhali ajwayelekile ukwakheka, futhi uzibe ezinye izakhi zokuxubana nezinto eziyingozi kuzo. Indima ye. Isibonelo, insimbi yengulube ingumthombo oyinhloko we-Ti, ngakho-ke inani le-pig iron elisetshenzisiwe lizokuthinta ngqo okuqukethwe kwe-Ti kulokho okubhaliwe futhi libe nomthelela omkhulu kuzakhiwo zomshini zento. Ngokufanayo, insimbi eyilahliwe ingumthombo wezinto eziningi ezihlanganisa zonke izinto, ngakho-ke inani lezinto ezilahliwe linomthelela oqonde ngqo kuzakhiwo zemishini yensimbi eyinsimbi. Ezinsukwini zokuqala lapho isithando somlilo sasisebenza, sasihlala sisebenzisa isilinganiso sokushaja somlilo we-cupola (insimbi yengulube: 25 ~ 35%, insimbi eyilahliwe: 30 ~ 35%). Ngenxa yalokho, izakhiwo zomshini (amandla okuqina) kwempahla zaziphansi kakhulu. Lapho inani lensimbi elisetshenzisiwe linomthelela ekusebenzeni kwensimbi yensimbi, ngemuva kokulungisa inani lezinto ezilahliwe ngesikhathi, inkinga ixazululwa ngokushesha. Ngakho-ke, insimbi eyilahliwe iyipharamitha yokulawula ebaluleke kakhulu kunqubo yokuncibilika. Ngakho-ke, isilinganiso sokushaja sinomthelela oqondile ezakhiweni zomshini zensimbi yensimbi futhi kugxilwe ekulawuleni ukuncibilikisa.

1.4 Umthelela wezinto ezilandelwayo kuzinto ezibonakalayo

Esikhathini esedlule, besinaka nje ithonya lezinto ezijwayelekile eziyisihlanu ezijwayelekile kukhwalithi yensimbi eyakhiwe ngesikhathi senqubo yokuncibilikisa, ngenkathi umphumela wezinye izinto zokulandela umkhondo bekungukuqonda kwekhwalithi kuphela, kepha bekungaqabuki ukuthi kuhlaziywe futhi kuxoxwe ngakho ngobuningi. Eminyakeni yamuva nje, ngenxa yomthelela wobuchwepheshe bokusakaza Inqubekela phambili, imishini yokuncibilikisa ivuselelwa njalo, kanti izinkomishi zishintshwe kancane kancane ngamathambo kagesi. Yize ukuncibilikiswa kwesithando sikagesi kunezinzuzo zako ezingenakuqhathaniswa nokuncibilikisa i-cupola, ukuncibilikisa isithando somlilo nakho kulahlekelwa ezinye zezinzuzo zokuncibilikisa i-cupola, ngakho-ke ithonya lezinto ezithile ezilandelwayo ku-cast iron liyabonakala. Ngoba ukusabela kwe-metallurgical ku-cupola kunamandla kakhulu, ukukhokhiswa kusesimweni esinamandla se-oxidizing, iningi laso linoketshezi, futhi likhishwe nge-slag, yingxenye encane kuphela ezohlala ensimbi encibilikisiwe, ngakho-ke ezinye zinomthelela omubi ukusakaza Ngenqubo ye-metallurgical ye-cupola, izinto zokulandela umkhondo ngokuvamile azinawo umthelela omubi ensimbini yensimbi. Ngesikhathi senqubo yokuncibilikisa i-cupola, ingxenye ye-nitrogen ku-coke ne-nitrogen (N2) esemoyeni izoncibilika ibe yinsimbi encibilikisiwe yohlobo lwama-athomu emazingeni okushisa aphezulu, okwenza okuqukethwe kwe-nitrogen okusensimbi encibilikisiwe kuphakeme kakhulu.

Ngokwezibalo, selokhu kwaqala ukusebenza isithando sikagesi, imfucuza ebangelwa okuqukethwe okuholayo okuphezulu kanye nensimbi esetshenzisiwe encibilikisiwe ngoba okuqukethwe okuholayo bekuphakeme kakhulu ukuthi kungalungiswa bekungekho ngaphansi kwamathani ayi-100, futhi nenani lemikhiqizo engafanele kokuqukethwe kwenitrogen okwanele nakho kwakuphezulu impela, okwenza inkampani ilahlekelwe kakhulu kwezomnotho.

Ngokuya ngeminyaka yethu eminingi yokuncibilikisa isithando somlilo kagesi kanye nombono, ngikholelwa ukuthi izinto ezisemqoka ekulandeleni inqubo yokuncibilikisa isithando somlilo ikakhulukazi i-N, Pb ne-Ti. Imiphumela yalezi zinto ku-grey cast iron ikakhulukazi imi ngokulandelayo:

Ukuhola

Lapho okuqukethwe okuholayo ngensimbi encibilikile kuphezulu (> 20PPm), ikakhulukazi lapho kusebenzisana nokuqukethwe okuphezulu kwe-hydrogen, kulula ukwakha i-Widmanstatten graphite ekuphonseni ngezigaba ezijiyile. Lokhu kungenxa yokuthi isihlabathi se-resin sinezinto ezinhle zokuvikela ukushisa futhi insimbi encibilikisiwe ihamba kancane ekubunjweni, (lokhu kuthambekela kusobala kakhulu ezingxenyeni ezijiyile), insimbi encibilikisiwe ihlala esimweni soketshezi isikhathi eside, nokuqina i-iron encibilikisiwe isondele esimweni sokuqina esimeni sokulingana ngenxa yesenzo somthofu ne-hydrogen. Lapho lolu hlobo lokusakaza luqina futhi luqhubeka luphola, ikhabhoni ese-austenite izongena futhi ibe yi-graphite yesibili esimweni esiqinile. Ngaphansi kwezimo ezijwayelekile, i-graphite yesibili iqinisa kuphela ama-eutectic graphite flakes, angeke abe nomthelela omkhulu ezakhiweni zomshini. Kodwa-ke, lapho okuqukethwe kwe-nitrogen ne-hydrogen kuphezulu, amandla angaphezulu e-graphite endizeni efanayo ye-crystal ye-austenite azoncishiswa, futhi i-graphite yesibili izokhula eceleni kwendiza ethile ye-crystal ye-austenite futhi inabele ku-matrix yensimbi. Bheka ngaphansi kwesibonakhulu. Ama-flakes amancane amancane afana ne-burrs akhula ohlangothini lwama-flake graphite flakes, aziwa kakhulu njengezinwele ze-graphite, okuyisizathu sokwakhiwa kwe-graphite kaWidman. I-aluminium ensimbi yensimbi ingakhuthaza i-iron yensimbi ukuthi imunce i-hydrogen futhi inyuse okuqukethwe kwayo kwe-hydrogen. Ngakho-ke, i-aluminium nayo inomphumela ongaqondile ekwakhiweni kweWidmanstatten graphite.

Lapho i-Widmanstatten graphite ivela ku-cast iron, izakhiwo zayo zemishini zithinteka kakhulu, ikakhulukazi amandla nobulukhuni, obungancishiswa cishe ngo-50% ezimweni ezinzima.

I-graphite kaWidman inezici ezilandelayo ze-metallographic:

• 1) Ku-photomicrograph ephindwe ka-100, kunamafulegi amancane amancane afana nameva anamathele kwi-coarse graphite flake, eyi-Widmanstatten graphite.
• 2) Ubudlelwano be-crystalline graphite ejwayelekile buxhunywe komunye nomunye.
• 3) Lapho inethiwekhi ye-Widmanstatten graphite inwebeka kumatrix ekamelweni lokushisa, iba yindawo entekenteke ye-matrix, ezonciphisa kakhulu izakhiwo zemishini yensimbi eyimpunga. Kepha kusukela ekubukeni kwesigaba esinqamulelayo, imifantu yokuqhekeka isanweba eduze kwe-co-chip-like graphite.

nitrogen

Inani elifanele le-nitrogen lingakhuthaza i-graphite nucleation, iqinise i-pearlite, ithuthukise ukwakheka kwensimbi yempunga, futhi ithuthukise ukusebenza kwensimbi yempunga.

I-nitrogen inezithonya ezimbili eziyinhloko ku-grey cast iron. Enye ithonya ekubunjweni kwe-graphite, kanti enye ithonya esakhiweni se-matrix. Umphumela we-nitrogen ku-graphite morphology inqubo eyinkimbinkimbi kakhulu. Kubonakaliswe kakhulu ku: ithonya lesendlalelo se-adsorption ebusweni be-graphite kanye nomthelela wosayizi weqembu le-eutectic. Njengoba i-nitrogen icishe ingancibiliki kwi-graphite, i-nitrogen iqhubeka ngokukhangiswa ngaphambili kokukhula kwe-graphite nakuzo zombili izinhlangothi ze-graphite ngesikhathi senqubo yokuqina kwe-eutectic, okuholele ekwandeni kokuhlungwa okuzungezile kwe-graphite ngesikhathi senqubo yemvula, ikakhulukazi lapho i-graphite ifinyelela ku insimbi encibilikisiwe. Ephuzwini, kuthinta ukukhula kwe-graphite kusixhumi esibonakalayo esiqinile. Ngesikhathi senqubo yokukhula kwe-eutectic, kunomehluko omkhulu ekusatshalalisweni kokuhlushwa kwe-nitrogen esicebeni nasezinhlangothini zombili zeshidi le-graphite. Isendlalelo se-adsorption sama-athomu e-nitrogen ebusweni be-graphite singavimbela ukusakazeka kwama-athomu ekhabhoni ebusweni be-graphite. Lapho ukuminyana kwe-nitrogen ngaphambili kwe-graphite kuphakeme kunalokho kwezinhlangothi zombili, izinga lokukhula kwe-graphite ohlangothini olude luyancipha. Ngokuphambene nalokho, ukukhula kwe-lateral kuba lula, futhi ngenxa yalokho, i-graphite iba mfushane futhi ibe mkhulu. Ngasikhathi sinye, njengoba kuhlale kukhona ukukhubazeka enqubeni yokukhula kwe-graphite, ingxenye yama-athomu enitrogen ifakwa emkhakheni wesici futhi ayikwazi ukusabalala, futhi umngcele wokusanhlamvu uzothambekela ngokulinganayo ngaphambili kokukhula kwe-graphite, futhi ukuphumula kusazokhula esiqondisweni sokuqala. I-graphite ikhiqiza amagatsha, futhi ukwanda kwamagatsha e-graphite kungesinye isizathu esenza i-graphite ibe mfushane. Ngale ndlela, ngenxa yokulungiswa kwesakhiwo se-graphite, umphumela wokuqhekeka esakhiweni se-matrix uyehla, okulungele ukuthuthukiswa kokusebenza kwensimbi yensimbi.

Umphumela we-nitrogen esakhiweni se-matrix ukuthi uyinto yokuzinzisa i-pearlite. Ukwanda kokuqukethwe kwe-nitrogen kunciphisa ukushisa kwe-eutectoid yensimbi yensimbi. Ngakho-ke, lapho inani elithile le-nitrogen liqukethe i-grey cast iron, izinga le-supercooling lokuguqulwa kwe-eutectoid lingakhuphuka, ngaleyo ndlela kucwengwe i-pearlite. Ngakolunye uhlangothi, ngoba i-atomic radius ye-nitrogen incane kunaleyo yekhabhoni nensimbi, ingasetshenziswa njengama-athomu angama-interstital ukuncibilika nge-ferrite ne-cementite, okwenza ukuthi i-crystal lattice yayo ihlanekezelwe. Ngenxa yezizathu ezimbili ezingenhla, i-nitrogen ingaba nethonya eliqinisayo kumatrix.

Yize i-nitrogen ingathuthukisa ukusebenza kwensimbi eyimpunga, uma yeqa inani elithile, ama-nitrogen pores kanye nama-microcracks kuzokhiqizwa njengoba kukhonjisiwe ku-Figure 2, ngakho-ke ukulawulwa kwe-nitrogen kufanele kulawulwe ebangeni elithile. Ngokuvamile i-70-120PPm, lapho idlula i-180PPm, ukusebenza kwe-iron iron kuzokwehla kakhulu.

I-Ti iyinto eyingozi ku-cast iron. Isizathu ukuthi i-titanium inobudlelwano obuqinile ne-nitrogen. Lapho okuqukethwe kwe-titanium ku-grey cast iron kuphezulu, akusizi ngomphumela wokuqinisa we-nitrogen. Okokuqala, yakha inhlanganisela ye-TiN ene-nitrogen, enciphisa empeleni, kungenxa yokuthi le nitrogen yamahhala inomphumela oqinile wokuqinisa isisombululo ku-grey cast iron. Ngakho-ke, izinga lokuqukethwe kwe-titanium kuthinta ngokungaqondile ukusebenza kwensimbi yempunga.

Ubuchwepheshe bokulawula ukuncibilika

2.1 Ukukhethwa kokuhlanganiswa kwamakhemikhali

Ngokuhlaziywa okungenhla, ukulawulwa kokwakhiwa kwamakhemikhali kubaluleke kakhulu ekuncibilikiseni ubuchwepheshe, futhi kuyisisekelo sokulawula ukuncibilikisa. Ngakho-ke, ukwakheka kwamakhemikhali okufanelekile kuyisisekelo sokuqinisekisa ukusebenza kwendaba. Imvamisa, ukulawula ukwakheka kwensimbi ephezulu yamandla (ukuqina kwamandla ≥300N / mm2) kufaka phakathi njll. C, Si, Mn, P, S, Cu, Cr, Pb, N

2.3 Ukulawula ubuchwepheshe bezinto ezilandelwayo

Enkambisweni yokulawulwa kwangempela, ngokususelwa ekuhlaziyweni kwenkokhiso, kuyaqinisekiswa ukuthi umthombo wokuhola ikakhulukazi insimbi eyilahliwe. Ngakho-ke, ukulawulwa komthofu entweni eluhlaza kungokulawula ukufakwa kwe-Pb kusimbi yensimbi, futhi okuqukethwe okuholayo kuvame ukulawulwa ngaphansi kuka-15ppm. Uma okuqukethwe okuholayo ensimbi ebunjiwe eluhlaza> 20 ppm, ukwelashwa okukhethekile kokuwohloka kuzokwenziwa ngesikhathi sokwelashwa kokufukamela.

 Njengoba iTi itholakala kakhulu ngensimbi yengulube, ukulawulwa kweTi ikakhulukazi ukulawula insimbi yengulube. Ngakolunye uhlangothi, kubalulekile ukubeka phambili izidingo eziqinile kokuqukethwe kwe-Ti ngensimbi yengulube lapho uthenga. Imvamisa, okuqukethwe kwe-titanium yensimbi yengulube kuyadingeka ukuthi kube: Ti <0.8%, kanti esinye isici esisodwa ukulungisa inani lokusetshenziswa ngesikhathi ngokuya ngokuqukethwe kwe-titanium yensimbi yengulube.

Ikakhulu kuvela ezintweni zokuphinda usebenzise kabusha futhi insimbi eyilahliwe, ngakho-ke ukulawulwa kwe-N ikakhulukazi ukulawula izinto zokwenza kabusha amandla kanye nensimbi eyisigaxa. Kodwa-ke, njengoba kushiwo ngenhla, kuncane kakhulu futhi kuphakeme kakhulu kunecala elibi ekusebenzeni kwensimbi yempunga, ngakho-ke okuqukethwe kwe-N Ibanga lokulawula ngokuvamile: 70 ~ 120ppm, kepha okuqukethwe kwe-N kufanele kube nomdlalo ofanele ne okuqukethwe Ti. Ngokuvamile, ubudlelwano phakathi kuka-N no-Ti yilobu: N: Ti = 1: 3.42, okungukuthi, u-0.01% we-Ti ungamunca i-30PPm ye-nitrogen. Inani eliphakanyisiwe le-nitrogen ngesikhathi sokukhiqiza lithi: N = 0.006 ~ 0.01 + Ti / 3.42.

2.4 Lawula ubuchwepheshe benqubo yokuncibilikisa

1) ubuchwepheshe be-Inoculation

Inhloso yokwelashwa kwe-inoculation ukukhuthaza i-graphitization, ukunciphisa ukuthambekela komlomo omhlophe, nokunciphisa ukuzwela kwendawo ekugcineni; lawula i-graphite morphology futhi uqede i-graphite engaphansi; ukwandisa ngokufanele inani lamaqoqo eutectic futhi ukhuthaze ukwakheka kwe-flake pearlite, ukuze kuthuthukiswe ukusebenza kwamandla we-iron iron nezinye izinhloso zokusebenza.

Ithonya lokushisa kwensimbi encibilikisiwe ku-inoculation nasekulawuleni izinga lokushisa lensimbi encibilikisiwe linomthelela omkhulu ku-inoculation. Ukwandisa ukushisa okushisayo kwensimbi encibilikisiwe ebangeni elithile nokuyigcina isikhathi esithile kungenza izinhlayiya ze-graphite ezingasetshenziswanga zihlale kusimbi encibilikisiwe, engaqedwa ngokuphelele ensimbi encibilikisiwe ukuqeda ithonya lofuzo lwensimbi yengulube futhi nikeza ukudlala okugcwele kumphumela we-inoculant's inoculation, Thuthukisa ikhono lokuzala lensimbi encibilikisiwe. Ekulawuleni inqubo, izinga lokushisa okushisa kakhulu lenyuka laya ku-1500 ~ 1520 ℃, kanti ukushisa kokufakwa kwe-inoculation kulawulwa ku-1420 ~ 1450 ℃.

Usayizi wezinhlayiyana we-inoculant uyinkomba ebalulekile yesimo se-inoculant futhi unethonya elikhulu kumphumela we-inoculant. Uma ubukhulu bezinhlayiyana buhle kakhulu, kulula ukusabalalisa noma ukufakwa kwi-slag encibilikisiwe futhi ulahlekelwe umphumela wayo. Uma ubukhulu bezinhlayiyana bukhulu kakhulu, i-inoculant ngeke incibilike noma incibilike ngokuphelele. Ayigcini nje ngokungenzi ngokugcwele umthelela wayo we-inoculation, kepha izodala ukuhlukaniswa, izindawo eziqinile, i-supercooled graphite nokunye ukukhubazeka. Ngakho-ke, ubukhulu bezinhlayiya ze-inoculant kufanele bulawulwe ngaphakathi kwe-2 ~ 5mm ngangokunokwenzeka. Qinisekisa umphumela wokufukamela.

Ekulawulweni kwenqubo, inqubo yokugoma igonyelwa ikakhulukazi ethangini lokufukamela, ukuze ukuthululelwa kwephakheji lokuphosa kungagcwaliswa ngokuyisisekelo ngaphambi kokuba incubation yehle. Kepha ezingxenyeni ezinkulu kakhulu nezingxenye ezifakwe nge-ladle ephindwe kabili, ayikwazi ukuhlangabezana nezidingo. Ngakho-ke, kusetshenziswa indlela yokufaka inoculation sekwephuzile: okusho ukuthi, i-silicon inoculation entantayo yenziwa kuladle ngaphambi kokuba kuthululwe (inani le-inoculation lingu-0.1%), elehlisa noma lingekho ukwehla kwe-inoculation futhi kuthuthukise umphumela we-inoculation.

2) Ukuhlanganisa ukwelashwa

Ukwelashwa kwe-alloying kungeza inani elincane lezinto zokuhlanganisa insimbi ejwayelekile ukuze kuthuthukiswe izakhiwo zemishini yensimbi eyinsimbi. Ekuphatheni kwenqubo yokuncibilikisa, ukwengezwa kwama-alloys ikakhulukazi kwezingxenye lapho amakhasimende adinga ukucinywa khona kanye nezingxenye ezinezinsimbi zomhlahlandlela eziwugqinsi, izakhi eziyinhloko ze-alloy zengezwe nenani lokungezwa.

Lokhu kuqinisekisa ngokwezinga elithile ukwehla kokusebenza ngenxa yokwenyuka kwenani le-CE, futhi ezingxenyeni ezicinyiwe, ukuqina ngesikhathi sokucima kuyathuthukiswa. Qinisekisa ukujula okucimayo.

Ngesikhathi senqubo yokuncelisa nokuncibilika, ukuhleleka kokudla kokhiye okukulesi sigaba ukondla insimbi eyilahliwe, insimbi yomshini, kanye nensimbi yengulube ngokulandelana kwezinto ezibalulekile. Ukuze kuncishiswe ukulahleka okushisayo kwezinto ezihlanganisa izinto, i-ferroalloy kufanele ingezwe ekugcineni. Lapho okubandayo kususwe ngokuphelele, izinga lokushisa lenyuka laya ku-1450 ℃. Lelo iphuzu A. Uma liphansi kuno-1450 ° C, kunengozi yokuqedwa okungaphelele kwe-recarburizer noma i-ferroalloy.

Ezigabeni AB, lokhu kwelashwa okufanele kwenziwe:

• Isilinganiso sokushisa;
• I-slag yokumunya;
• Ukusampula nokuhlaziywa kokwakhiwa kwamakhemikhali;
• Hlaziya ama-elementi ajwayelekile bese ulandelela ama-elementi nge-spectrometer eshisayo;
• Thatha isiqeshana sokuhlola unxantathu ukukala inani le-CW;
• Ngemuva kokulungisa insimbi encibilikisiwe ngokuya ngemiphumela yokuhlolwa ehlukahlukene, qhubeka nokunikezela ngamandla imizuzu eyi-10 bese uphinde wenze isampula uphinde uhlaziye. Ngemuva kokuqinisekisa ukuthi yonke idatha ijwayelekile, qhubeka ukhuphule izinga lokushisa libe cishe ku-1500 ° C, okusho ukuthi, phuzu C. Esigabeni se-CD, vumela insimbi encibilikisiwe ime imizuzu emi-5 kuya kwengu-10 bese uthatha isiqeshana sokuhlola unxantathu ukuhlola Inani le-CW. Ngemuva kokulinganisa izinga lokushisa, lungiselela i-iron ngokuthepha.

Ukulawulwa kocucu olungunxantathu

Kumamaki ahlukene, nquma ububanzi bokulawula umlomo omhlophe (CW) wamabhulokhi wokuhlola onxantathu ahlukile, futhi unqume ikhwalithi yensimbi encibilikisiwe ngokuhlanganiswa nokuhlaziywa kokwakhiwa ngaphambi kwesithando somlilo.

Isiphetho

Ubuchwepheshe bokuncibilikisa i-iron cast oshiwo ngenhla busetshenziswe ngempumelelo ku-CSMF iminyaka eyi-8 kusuka ngo-1996 kuya ku-2003. ikakhulukazi ingxenye yobulukhuni besitimela somhlahlandlela sezingxenye zamathuluzi womshini sihlangabezana nezidingo, okuthuthukisa kakhulu ukusebenza kokusika kokuphonsa.Kuye kwafakazelwa ukuthi lobu buchwepheshe ubuchwepheshe obuphothuliwe, futhi amaphuzu ayo wokulawula anjengokulandelayo:

• 3.1 Ukulawulwa kokwakhiwa kwamakhemikhali kwezinto
• 3.2 Ukunqunywa kwesilinganiso sentengo
• 3.3 Ukulawula ubuchwepheshe bezinto ezilandelwayo
• 3.4 Ukulawulwa kwenqubo yokwelashwa kwe-inoculation
• 3.5 Ukwelashwa ngensimbi
• Ukulawulwa kwethempelesha kwenqubo yokuncibilikisa
• 3.7 Ukulawulwa kocezu lokuhlola unxantathu

Sicela ugcine umthombo nekheli lale ndatshana ukuze uphinde uprintwe: High-Amandla Gray Cast Iron Ukuncibilikisa Technology

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