Uma uzwa 'izingxenye zokusakaza ze-gravity die', isithombe sokuqala esivame ukuvela ngesalezi zingxenye ezingenasici, ezicwebezelayo ze-aluminium, kucishe kube sengathi ziphume esibunjeni esilungele indawo yombukiso. Leyo yinguqulo yencwajana ecwebezelayo. Iqiniso, ukugaya kwalo kwansuku zonke, ukuxoxisana okuqhubekayo phakathi komklamo ofanele kanye ne-physics enenkani yensimbi encibilikisiwe. Akukhona nje ukuthela insimbi esikhunjeni sensimbi nokulinda; kumayelana nokuphatha ukushisa, ukulindela ukuncipha ezigabeni ezithile, nokwazi ukuthi isistimu yesango oyichithe isonto lonke uyiklama ingase zisadinga ukushintshwa ekuqaliseni ukukhiqizwa kwesihlanu. Abaningi bacabanga ukuthi umzala omncane we-high-pressure die casting, kodwa lokho kubukela phansi yilapho izinkinga eziningi zekhwalithi ziqala khona. Amandla adonsela phansi enqubo angokoqobo, kodwa ukulawulwa okudingekayo akukhona nje ukwenza.
Umbono Oyiphutha Oyinhloko: Konke Kumayelana Nesikhunta
Kugxilwa kakhulu kwidayizi ngokwayo—insimbi ye-H13, iziteshi zokupholisa, ipholishi. Ungangizwa kabi, ukufa komshini onembile kuyibhlokhi yokuqala. Kodwa ngibone ukufa okuphelele kukhiqiza izinsalela ngenxa yokuthi izinga lokushisa langaphambi kokushisa lalicishwe ngo-30°C, noma ngenxa yokuthi isikhathi sokudlulisa i-ladle sethule isiphithiphithi esiningi kakhulu. Ifa lihlala likhona; izinguquko zenqubo zingabadlali bangempela. Esitolo sethu, sifaka yonke into: izinga lokushisa ezindaweni ezihlukene, izinga lokushisa lensimbi, isikhathi somjikelezo, ngisho nomswakamo endaweni ethile ebalulekile. izingxenye zokuphonsa amandla adonsela phansi izicelo zasolwandle. Leyo logi yedatha ibaluleke kakhulu kunomdwebo wokufa kwesinye isikhathi.
Ngokwesibonelo, sisebenze ochungechungeni lwabakaki bemoto engekho emgwaqeni. Idizayini ibinalawa magundane agibelekayo ashintshela kuwebhu encane, ebanzi. Ifa lalimuhle. Amashothi okuqala? I-Porosity khona lapho kuhlukana khona, ngaso sonke isikhathi. Indaba kwakungeyona isikhunta; kwakuwukulandelana kokuqinisa. Izingxenye eziwugqinsi zahlala zishisa, zidla kusukela engxenyeni encane eyaqina kuqala, ishiya i-shrinkage voids. Asiyixazululi ngokwenza kabusha idayizi, kodwa ngokungeza okokufaka okubandayo kwekhopha endaweni ekufayo ezingxenyeni eziwugqinsi nokulungisa i-engeli yokuthulula ukuze ushintshe indlela yokugeleza kwensimbi. Yengeze izindleko nesikhathi somjikelezo, kodwa yalondoloza ingxenye. Yilokho okuyiqiniso—ukuxazulula izinkinga ezingekho ebhukwini lokufunda.
Yilapho isipiliyoni se-Foundry esinezinto ezihlukahlukene sitshela khona ngempela. Sisebenzisa i-aluminium A356 eningi, kodwa ngezidingo zamandla aphezulu, sishintshela kuma-alloys afana ne-A357 noma singene kuma-zinc alloys kulolo hlelo lokusebenza. Ngamunye uziphatha ngendlela ehlukile ngaphansi kwamandla adonsela phansi. I-A356 iyathethelela; I-A357 izwela kakhulu kumazinga okupholisa. Ufunda lokho ngokonakalisa amaqoqo ambalwa, ngokwethembeka. Uzakwethu onjengaye I-Qingdao Qiangsenyuan Technology (QSY), abanesizinda sabo seminyaka engu-30 kugobolondo nokufaka utshalomali, bathola lokhu ngokuzenzakalelayo. Bayaqonda ukuthi insimbi inenkumbulo nomoya, kungakhathaliseki ukuthi ithelwa ngaphansi kwamandla adonsela phansi, i-vacuum, noma ingcindezi. Lolo lwazi lwe-cross-process yigolide.
Lapho Imishini Iphambana Nokusakaza
Lesi yisihluthulelo esibalulekile esitholakalayo. Awukwazi ukukhuluma ngakho izingxenye zokuphonsa amandla adonsela phansi ngaphandle kokukhuluma nge-machining allowance kanye ne-fixturing. I-as-cast surface ingase ibukeke kahle, kodwa cishe uhlale ubhekene ne-machining op ukuze ushaye izindawo zangempela noma uthole indawo yokuvala. Uma ukusakaza kunengcindezi eyinsalela noma ubulukhuni obungaguquki obuvela ekupholiseni okungalingani, uzokubona engxoxweni yethuluzi le-CNC—ithuluzi, i-dimensional drift, amaphetho awonakele. Kudingeke ukuthi sisebenzise inqwaba yokwelapha ukushisa okudambisa ingcindezi ezingxenyeni ezithile ngaphambi kokuthi ziye ngisho kuseli lomshini, esingakaze silicaphune ekuqaleni.
Imodeli ehlanganisiwe ye-QSY, lapho baphatha khona kokubili ukulingisa kanye ne CNC imishini ngaphansi kophahla olulodwa, iqeda ungqimba olukhulu lokukhomba ngomunwe. Lapho umakhi wemishini ephansi kwehholo esuka kundunankulu, izinkinga zixazululwa ngokushesha. Ingabe ithuluzi lidabukile ngenxa ye-microstructure yezinto noma inkinga yesilinganiso sokuphakelayo? Bangakuthola ngamahora, hhayi amaviki ama-imeyili phakathi kwabathengisi abahlukene. Engxenyeni eyinkimbinkimbi efana nendlu ye-compressor, lapho ivolonti yangaphakathi idinga ukuphonswa eduze kwe-net-shape kodwa iqedwe ngokugaya okunembayo, lokhu kuhlanganiswa kuwukuphela kwendlela yokuqinisekisa ukubekezelelana kokugcina.
Ngikhumbula umzimba wepompo esawenza, ingxubevange esekwe nickel yokumelana nokugqwala. Ukulingisa amandla adonsela phansi kusinikeze ubuqotho ebesibudinga ngaphandle kwesiyaluyalu sengcindezi ephezulu. Kodwa ubuso be-flange kwakufanele bube flat ngokuphelele. Amajikijolo okuqala aphenduke kancane ngemuva komshini. Ngenxa yokuthi amaqembu okulingisa nawomshini ahlanganisiwe, alandelela emuva endleleni ingxenye eyayikhishwa ngayo kufayizi—izikhonkwane ze-ejector zazibangela ukuhlanekezela okuncane okwakubonakala kuphela ngemva kokukhishwa kwesikhumba. Ushintsho oluncane ekulandeleni kwe-ejection nosekelo kumshini womshini kuxazulule. Izinkampani ezimbili ezihlukene zizobe zibambekile ekusoleni.
Ukukhetha Okubalulekile: Akuyona I-Aluminium Nje
I-Gravity die casting iba yi-pigeonholed njengenqubo ye-aluminium. Okuvame kakhulu, okuqinisekile, kodwa indlela isebenza kububanzi obubanzi. Senze imigijimo eyimpumelelo ngama-alloys ethusi athile ne-magnesium. Isihluthulelo ukuguquguquka kwensimbi nendawo encibilikayo ngokuhlobene nempilo yokufa. Ukuthela ingxube yethusi ngaphansi kwamandla adonsela phansi kuyisilwane esihlukile—izinga lokushisa eliphakeme, ukuguga okusheshayo, ukuphathwa kwe-oxide okuhlukile. Ungena kulezi zinsiza lapho ingxenye idinga izakhiwo-ezifana ne-thermal conductivity ephezulu noma ukumelana nokugqokwa okuthile-futhi ivolumu ichaza izindleko zokufa phezu kokusakazwa kwesihlabathi.
Lokhu kuqondana nalokho okubonayo ekusebenzeni okuhlukahlukene njenge-QSY. Umsebenzi wabo nge insimbi engagqwali futhi ekhethekile ama-alloys asekelwe ku-cobalt ekufakweni kokutshalwa kwezimali kwazisa indlela yabo yokufa kwezinye izinsimbi. Baqonda izidingo zesakhiwo sokusanhlamvu. Ngengxenye ye-gravity-cast engase kamuva ibone ukusebenza kwe-brazing noma isevisi yezinga lokushisa eliphezulu, lolo lwazi lwesayensi yezinto ezibonakalayo lubeka yonke into kusukela ekulungisweni kwe-alloy kuya kumjikelezo wokwelashwa kokushisa kwangemuva kokusakazwa. Akukhona nje ukwenza isimo; ubunjiniyela i-microstructure.
Lokhu ngakufunda kabuhlungu kusenesikhathi. Sibe ne-oda lamapuleti osinki okushisa avela kungxubevange yethusi-chromium. Siyiphathe njenge-aluminium—idizayini efanayo yokufa, isikhathi somjikelezo esifanayo. Imiphumela yayiyimbi: ukuvala okubandayo kanye ne-porosity enkulu. Amandla okushisa ayehluke ngokuphelele. Bekufanele sicishe izinga lokushisa langaphambi kokushisa eliphindwe kabili bese siklama kabusha i-sprue ukuze ibe nkulu kakhulu futhi ishise kakhulu ukuze silondoloze isisindo esishisayo. Kwakuyisifundo esibizayo ukuthi awukwazi ukuba nendlela yokulinganisa konke, ngisho nangaphakathi kwendlela efanayo yokulingisa.
I-Good Enough Trap kanye Namasango Ekhwalithi
Ekukhiqizeni, ikakhulukazi ngenqubo ebonakala iqondile njengokusakazwa kwamandla adonsela phansi, kunengcindezi eqhubekayo yokusheshisa imijikelezo. Singakwazi ukunciphisa isikhathi sokupholisa ukufa ngamasekhondi angu-10? Umzuzwana ngamunye olondoloziwe uyimali. Kodwa kulapho izindinganiso zekhwalithi zangaphakathi zikwenza noma zikuphule khona. Ukusungula izindawo zokuhlola okungaxoxiswana ngazo—ukuhlolwa kwe-athikili yokuqala, ukuhlolwa kobukhulu bezikhathi ezithile, ukuhlola kokungena kodayi ngesampula—kubamba ukukhukhuleka ngaphambi kokuba kube ukwenqatshwa kwenqwaba.
Okwethu, konke okusha izingxenye zokuphonsa amandla adonsela phansi Uhlelo lunohlelo lwekhwalithi olwakhelwe ngaphakathi. Lungase lucacise ukuthi ingxenye ngayinye engu-50 ithola isheke eligcwele le-CMM, noma ukuthi ukuthululwa kokuqala kwawo wonke amashifu kuhlukaniswa ukuze kuhlaziywe umsindo wangaphakathi. Kuzwakala kuyisicefe, kodwa ishibhile kunokwehluleka kwenkundla yekhasimende. Inkampani enombono wesikhathi eside, njengezithenjwa zomlando we-QSY weminyaka engu-30, ngokuvamile inalawa maphrothokholi esikweni lawo. Bakubonile okwenzeka ngaphandle kwabo.
Ukwehluleka okungiphethe kwakuyinqwaba yezingalo zomshini wezolimo. Baphase amasheke okubuka kanye nobukhulu. Kodwa ensimini, baqala ukuqhekeka ngaphansi komthwalo. Ukuhlaziywa kwe-forensic kuthole ifilimu ye-oxide encane egoqwe endaweni enengcindezi ephezulu-isici esingabonakali ngaphandle. Imbangela? Iwashi eligugile kancane ohlelweni lwethu lokuthela lalibangela isiyaluyalu esincane kodwa esingaguquki. Kusukela lapho, sihlola futhi sishintshe lezo zingxenye zesistimu zokuthela ezisebenzisekayo ngeshejuli eqinile, hhayi lapho zibukeka kabi. Ukunakekela okungajabulisi, okuvimbelayo okuchaza ukwethembeka.
Ukubheka Phambili: Iqhaza Kuchungechunge Olubanzi Lokukhiqiza
Ngakho-ke i-gravity die casting ihlezi kuphi namuhla? Akusona isisombululo esicwebezelayo, esinevolumu ephezulu sezinkulungwane zezingxenye ngosuku. Futhi akusona isixazululo se-ultra-flexible esisodwa. Ithatha leyo ndawo emaphakathi ebalulekile: ukukhiqiza izingxenye eziqinile, eziminyene, nezithembekile ngamavolumu aphakathi nendawo, ezinezakhiwo ezinhle kakhulu zokusebenza kanye nokuqedwa okuhle kwendawo. Ikusasa layo liboshelwe ekukhanyeni nasekuhlanganiseni. Sibona imiklamo eminingi lapho izingxenye eziningi zihlanganiswa zibe inkimbinkimbi eyodwa izingxenye zokuphonsa amandla adonsela phansi, ukuqeda ama-assemblies nama-fasteners. Lokho kudinga ukubambisana okuseduze nakakhulu phakathi komklami nomsunguli kusukela ngosuku lokuqala.
Yingakho ukusebenzisana nomhlinzeki wesevisi egcwele kungeyona nje into elula; kuyinzuzo yamasu. Uma uzibandakanya nethimba elingabuka umdwebo bese licabanga lonke uhambo—kusukela ekukhethweni kwengxubevange okusekelwe ekugqwaleni noma ezidingweni zezinga lokushisa (ukusebenzisa isipiliyoni ama-alloys akhethekile), ukuya enqubweni yokusakaza amandla adonsela phansi ngokwayo, kuze kufike ezicini zokugcina ezenziwe ngomshini nokuqinisekisa ikhwalithi—uthola ingxenye esebenzayo, hhayi nje ingxenye ehambisana nokuphrinta. Iwebhusayithi ye I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY) ikhuluma ngomsebenzi wabo ku ukubunjwa kwegobolondo futhi ukutshala imali eceleni komshini. Lokho kungitshela ukuthi baqonda i-spectrum ephelele. Umklami angase eze kubo nombono, futhi bangeluleka: Lesi sici sikufanelekela kangcono ukutshalwa kwezimali, kodwa lo mzimba oyinhloko kufanele ube amandla adonsela phansi ukuze uthole amandla nezindleko, futhi nansi indlela esizoyisebenzisa ngayo. Lokho kwahlulela okuphelele yilokho okuthengayo ngempela.
Ekugcineni, ukusakaza okuphumelelayo kwamandla adonsela phansi akukona nje ukuqonda okukodwa okuhlakaniphile. Kumayelana nokuhlonipha lonke uchungechunge lwezehlakalo—kusukela ngesikhathi incibilika ingxubevange kuze kufike lapho ingxenye yomshini ipakishwa. Kuyinqubo yokuqinisa okulawulwayo, okulindelwe okulawulwayo, nokunaka okungaphezi emininingwaneni emincane abantu abaningi abangalokothi bayibone. Izingxenye eziphuma ngakolunye uhlangothi ziwubufakazi obuthule balokho kugaya.
