Uma abantu abaningi bezwa 'ukwenziwa kwesihlabathi sensimbi', babona ngeso lengqondo inqubo engahluziwe, yasendulo yokwenza izingxenye zensimbi ezimangelengele. Lowo umbono oyiphutha wokuqala. Eqinisweni, yesimanje ukuphonsa isihlabathi sensimbi, ikakhulukazi uma sikhuluma ngensimbi empunga esebenza kakhulu noma izingxenye ze-iron ductile, isiyalo sobuchwepheshe obuphezulu. Akukhona nje ukuthela insimbi esikhunjeni sesihlabathi; imayelana nokulawula isihlabathi ngokwaso—ukwakheka kwaso, ukungeneka kwaso, ikhono laso lokukhipha amagesi—ukuze kuvinjwe inqwaba yeziphambeko ezingase zilahle inqwaba. Ngibone amaphrojekthi amaningi kakhulu ehluleka ngoba ukugxila bekugxile ekuncibilikeni kwensimbi kuphela, kuyilapho uhlelo lwesihlabathi beluwumcabango osemuva. Isihlabathi siyingxenye yempi, mhlawumbe ngaphezulu.
I-Sand System: Akukaze Kube Isihlabathi Nje
Asingene obishini. Igama elithi isihlabathi liyadukisa. Esilungiseleloni sokukhiqiza, ingxube elinganiselwe ngokucophelela yesihlabathi se-silica, ubumba be-bentonite, amanzi, kanye nothuli lwamalahle (i-seacoal) noma ezinye izithasiselo. Isilinganiso siyikho konke. Ubumba obuningi, futhi isikhunta siba nzima kakhulu, kuvimbela ukuphuma kwegesi efanele ngesikhathi sokuthela. Uzothola amagalelo namaphinifa. Kuncane kakhulu, futhi ubuso besikhunta bungabhidlika noma buguguleke, okuholela ekufakweni nasekuqedweni kwendawo emangelengele. Ngikhumbula umsebenzi womshini wamavalvu osebenza ngogesi lapho sasilokhu sishaywa khona ngaphansi komhlaba. Saxosha inkinga ngomnyango wokuncibilika amasonto ngaphambi kokuba ekugcineni siqaphele iqoqo lethu elisha le-bentonite linomthamo ohlukile wokushintshanisa ion. Isihlabathi besingaziphathi ngendlela efanayo. Ushintsho olucashile, inkinga enkulu.
Bese kuba nokusimama kokushisa kwesihlabathi. Uma leyo nsimbi engu-1300°C+ ishaya odongeni lwesikhunta, isihlabathi sidinga ukumelana nokushaqeka okushisayo ngaphandle kokuxubana nokusakaza. Kumajiyometri athile ayinkimbinkimbi anezingxenye eziwugqinsi, ngezinye izikhathi sisebenzisa isihlabathi se-chromite noma isihlabathi se-zircon ezindaweni ezibucayi zesikhunta. Ibiza kakhulu, kodwa ivimbela ukushiswa nokungena okuyiphupho elibi ukulihlanza ekwenzeni imishini. Izibalo zezindleko zenzuzo ozenzayo ngokusekelwe emsebenzini wengxenye kanye nokubekezelela kwekhasimende ukusebenza kabusha.
Ukuhlanganisa nokufaka umoya kuyizinqubo ezingatholi ngxoxo eyanele ngaphandle kwesisekelo sesisekelo. Isihlabathi sidinga ukuxutshwa kahle ukuze simbozwe uhlamvu ngalunye nge-binder, bese sidinga ukufakwa umoya ukuze sihlukanise izigaxa futhi sifinyelele ukugeleza okufanayo. Isihlabathi se-mulled kabi siholela ekuqineni kwesikhunta okungahambisani. Ungaba nephethini enhle kakhulu, kodwa uma isihlabathi singapakishi ngokufana ngakuso, ukunemba kwakho kobukhulu kuyaphuma ngefasitela. Kuyikhono elithintekayo—umakadebona we-muller angasho okuningi ngokuzwa isihlabathi.
Ukwenza Iphethini: I-Blueprint in Wood and Metal
Iphethini iwumfanekiso ongokoqobo wengxenye, kanye nalo lonke ulwazi lomsunguli. Ama-engeli asalungiswa, izibonelelo zokuncipha, i-fillet radii, idizayini yokuphrinta eyinhloko—konke kwakhelwe kukho. Ngoba ukuphonsa isihlabathi sensimbi iyagijima, ngokuvamile sisebenzisa amaphethini ensimbi (i-aluminium noma insimbi) ukuze iqine. Kodwa ifilosofi yokuklama ibalulekile. Iphutha elivamile ukuklama iphethini njengekhophi eqondile yemodeli ye-CAD. I-ayoni iyancipha kakhulu. Ngensimbi empunga, ubheka cishe ukuncipha okungu-1%. Ngakho iphethini yakho kufanele ibe oversized ngokufanele. Futhi akukona umugqa; ukujiya kwezigaba ezahlukene kuphole ngamanani ahlukene, okungadala ukuhlanekezela. Sivame ukusebenzisa imithetho yokuncipha futhi siguqule ngisho nephethini ngokusekelwe emiphumeleni ye-athikili yokuqala.
Amasistimu wokugenca nawokukhuphuka aklanywe khona kanye kupuleti lephethini. Yilapho ubuciko buhlangana khona nesayensi. Umgomo uwukuthola insimbi ehlanzekile, engenazo iziyaluyalu ukuze igcwalise imbobo ngokushesha, bese uphakela ukuncipha njengoba ukulingwa kuqina. Ukubeka izikhuphukeli (iziphakeli) ngokungalungile kuyiphutha lakudala. Kudingeka zibe sezingxenyeni ezisinda kakhulu, ezokugcina ziqine. Ngike ngaba nezimo lapho ingxenye ephonswe kahle yonakaliswa umgodi wokushwabana kumphathi obalulekile ngenxa yokuthi isikhuphukeli sasingamasentimitha ambalwa ukusuka endaweni yaso efanele. Isofthiwe yokulingisa iyasiza manje, kodwa ayikho enye indawo yokusika uvule amasampula ambalwa okulingisa nokubona iphethini yokuqinisa ngamehlo akho.
Ukugcinwa kwephethini kuhlala njalo. Isihlabathi siyaluma. Ngokuhamba kwesikhathi, iphethini iyaguga, futhi ubukhulu buyancipha. Ishejuli evamile yokuhlola ubukhulu bephethini ngokumelene nochwepheshe ayinakuxoxiswana. Kungumsebenzi oyisicefe, wokuvimbela osindisa inqwaba yamakhanda ekhanda phansi komugqa.
The Pour: Lapho Ukulawula Kuhlangana Nezinxushunxushu
Ukuthela insimbi kubukeka ngendlela ekhohlisayo. Akunjalo. Izinga lokushisa libalulekile. Ukushisa kakhulu, futhi wandisa ingozi yokushiswa kwesihlabathi kanye nokuncipha okukhulu. Kubanda kakhulu, futhi uthola ama-mistruns, ukuvala okubandayo, noma ukungahambi kahle kwamanzi okuhluleka ukugcwalisa izingxenye ezincane. Ezinhlelweni eziningi ze-iron empunga, sihlose ukuthululwa kwebanga phakathi kuka-1350°C no-1400°C, kodwa lokhu kuyalungiswa ngokusekelwe ekugqimeni kwengxenye nengxenye yesisindo. Ufunda ukwahlulela ubumanzi bomfudlana kanye nombala wensimbi, kodwa ama-thermocouples angabangani bakho abakhulu.
Isivinini sokuthela sibalulekile. Ngokushesha kakhulu, futhi usengozini yokuguguleka kwesikhunta kanye nesiyaluyalu esibamba umoya ne-slag. Ihamba kancane, futhi insimbi iqala ukuba yiqhwa ngaphambi kokuba isikhunta sigcwale. Ukuthulula okungaguquki, okuqhubekayo kuze kube yilapho ubona insimbi ikhuphuka ezikhuphukeni. I-slag kufanele ikhishwe ngokuzikhandla e-ladle ngaphambi nangesikhathi sokuthela. Noma iyiphi i-slag engena esikhunjeni izoba ukufakwa. Kuyikhono eliyisisekelo, elisebenza ngezandla okungekho mshini ongakwazi ukuliphindaphinda ngokugcwele okwamanje.
Umkhathi endaweni yokuthela ushubile, ngaso sonke isikhathi. Uphethe ukushisa, insimbi encibilikisiwe, newashi. Insimbi iyaphola kusukela ngesikhathi iphuma esithandweni. Kukhona iwindi elincane ukukulungisa. Ukuphepha kubaluleke kakhulu, kodwa kunjalo nokugxila. Ukuphazamiseka kwesikhashana kungasho ukuthela okubi noma okubi nakakhulu.
I-Shakeout, Ukuhlanza, kanye Neqiniso Lokuqeda
Ngemuva kokupholisa, ukulingisa kuya ku-shakeout. Isihlabathi sisuswa ngamandla, bese kuvela ukubunjwa, kushisa futhi kumbozwe uqweqwe lwesihlabathi esishile. Lokhu ukubukeka kwangempela komsebenzi wakho. Ufuna amaphutha asobala: ukukhanya okukhulu, ukungagijimi kahle, ama-cores aphukile. Amasango nezikhuphukeli ziyasuswa, ngokuvamile ngokusebenzisa amathoshi okusika noma amasaha.
Bese kulandela ukuhlanza, ngokuvamile okuyingxenye edinga abasebenzi abaningi. Lokhu kuhlanganisa ukuqhuma kwesibhamu ukuze kukhishwe isikali sesihlabathi esisele, bese kugaywa izinsalela zamasango nezikhuphukeli, nanoma yiziphi izimpiko noma ukukhanya. Yilapho ikhwalithi yesikhunta sakho nomsebenzi owumongo ibonakala khona. Isikhunta esenziwe kahle esinokuqina okuqinile sizonciphisa ukugaya okudingekayo. Umsebenzi ongemuhle usho amahora omsebenzi owengeziwe onama-engeli grinder, okwengeza izindleko kanye nomonakalo obeka engcupheni ukusakaza ngokwako uma igrinder ishelela. Okwezinkampani ezinikeza izixazululo zesevisi ephelele, njenge I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), le nqubo ehlanganisiwe yangemuva kokusakazwa ibalulekile. Njengoba sekuyiminyaka engaphezu kwengu-30 ekulingeni nasekwenzeni imishini, bayaqonda ukuthi ukulingisa akuqediwe lapho kushiya isihlabathi; iphelile uma isilungele umugqa wokuhlanganisa wekhasimende. Ikhono labo lokulandela ukuphonsa isihlabathi sensimbi ngokunemba kwemishini ye-CNC endlini kuyinzuzo enkulu, ukuqinisekisa ukuthi ubukhulu obubucayi bubanjiwe futhi kusindisa ikhasimende ekuxhumaniseni abathengisi abaningi.
Ukuhlola kwenzeka kulesi sigaba. Ukuhlolwa kobukhulu, ukuhlolwa okubukwayo kokulimala kwendawo, kanye nokuhlola okungalimazi okufana nokungena kodayi noma ukuhlolwa kwe-ultrasonic kwezingxenye ezibalulekile. Kuyisigaba esisangulukisayo. Kwesinye isikhathi, ukulingisa obekubukeka kuphelele ngemuva kokunyakaziswa kuveza ukushwabana kwe-porosity noma ukufakwa kwesihlabathi ngemva kokudubula. Kufanele unqume: ingabe ingalungiswa ngokushisela (futhi ingabe ikhasimende lizoyivumela?), Noma ingabe i-scrap? Izinga lesivuno liwukucindezela okuqhubekayo.
I-Material Nuances: Akuyona Yonke I-Iron Edalwe Yalingana
Uma sicacisa insimbi, umndeni omkhulu. Ekubunjweni kwesihlabathi, i-iron empunga (i-Flake Graphite Iron) ijwayeleke kakhulu, yaziswa ngamandla ayo okuswakama, ukusebenziseka kalula, kanye noketshezi oluhle. Kodwa i-ductile iron (Nodular Graphite Iron) iya ngokuya icaciswa ezingxenyeni ezidinga amandla aphezulu kanye nokuqina. Umehluko usekwelashweni kokuncibilika-ukwengeza i-magnesium noma i-cerium ukuze i-spheroidize i-graphite. Lokhu kwelashwa kuwukuhlinzwa okubucayi; isikhathi sokufa siyisici, futhi kufanele senziwe ngaphambi nje kokuthulula. Kwenze kungalungile, futhi uthola i-graphite ewohlokayo, ebulala izakhiwo zemishini.
Izinsimbi ezihlanganisiwe zengeza esinye isendlalelo. Ukwengeza i-chromium yokumelana nokuguga, i-nickel yokumelana nokugqwala, noma i-molybdenum ukuze ibe namandla emazingeni okushisa aphezulu ishintsha yonke into—umkhuba wokuncibilika, ukuziphatha kokuncipha, amandla okwenza izinto. Yilapho ubuchwepheshe be-metallurgical be-Foundry buhlolwa khona. Isitolo esifana ne-QSY, esibala ulwazi olunama-alloys akhethekile ahlanganisa ama-alloys asekelwe ku-nickel kanye ne-cobalt, singasondela kuma-ayina ahlanganisiwe anomqondo oqinile wokulawula inqubo. Izimiso ze ukuphonsa isihlabathi sensimbi kuhlala, kepha okuguquguqukayo kuyanda.
Ukukhethwa kwebanga lensimbi kuthinta ngokuqondile umklamo wokubunjwa ngokwawo. Ingxenye eyakhelwe i-ductile iron ingase idinge ukukhuphuka okuhlukile kunengxenye efanayo yensimbi empunga ngenxa yezici ezihlukene zokuqiniswa. Leli iphuzu lokwehluleka ekuxhumaneni phakathi kwabaklami nabasunguli. Ukuthatha insimbi iyinsimbi kuholela ekubunjweni ngendlela engafanele kanye nokwehluleka okungalindelekile enkonzweni.
Imicabango Ephethayo: Inqubo Ye-Synergistic
Ngakho, ukuphonsa isihlabathi sensimbi ikude nenqubo yakudala. Kuwuchungechunge lwezinqubo ezixhumene: ukulungiswa kwesihlabathi, ubunjiniyela bephethini, ukwenziwa kwengqikithi, ukulawula ukuncibilika, ukuthululwa, nokuqeda. Ubuthakathaka kunoma yisiphi isixhumanisi sinqamula iketango. Ithrendi manje ibhekise ekuhlanganisweni okuqinile, lapho i-Foundry ibandakanyeka ekuqaleni kwesigaba sokuklama ukuze kweluleke mayelana nokwenziwa, nalapho izinqubo zokusakazwa kwangemva kokusakazwa njengomshini zibhekwa njengengxenye yokuhamba komsebenzi okuqhubekayo. Imayelana nokuletha ingxenye esebenzayo, hhayi nje ukulingisa okunzima.
Ikhono langempela lisekulinganiseni zonke lezi zimo ngokwezomnotho. Kuwumkhuba owakhelwe phezu kokuhlangenwe nakho okunqwabelene, kwesinye isikhathi okubuhlungu. Ufunda kuso sonke isikhunta esitheliwe, kukho konke ukuhlaziya amaphutha. Umgomo uwukuhambisana—ukukhiqiza ukulingisa kwekhulu ngekhwalithi efanayo neyokuqala. Leyo inselelo yangempela yomsebenzi wezandla, futhi yikho okuhlukanisa isizinda somsebenzi nozakwethu othembekile wokukhiqiza ukuze uthole izingxenye ezinembayo.
