Lapho abantu bekhuluma ngokubunjwa kwesihlabathi se-resin, ngokuvamile babona inqubo elula, ecishe ibe luhlaza—isihlabathi nje esixutshwe ne-binder esithelwa ephethinini. Lokho kuwukwenza lula ngokweqile okuyingozi. Iqiniso liwumdanso ohlukanisiwe phakathi kwekhemistri, isikhathi, nomuzwa, lapho umehluko phakathi kokusakazwa komsindo nenqwaba yezinhlamvu ezibizayo ngokuvamile uncike emininingwaneni eminingi yamashidi ayisho. Akukhona nje ukwenza isikhunta; imayelana nokulawula ukusabela.
I-Core Chemistry kanye Nokuzizwa Kwesihlabathi
Inhliziyo yayo isistimu yokuhlanganisa, ngokuvamile i-furan noma i-phenolic resin ene-acid catalyst. Izilinganiso akuzona nje izinombolo ezivela encwadini; ziyagudluka ngokuswakama, izinga lokushisa lesihlabathi, ngisho nohlobo lwenhlaka. Ufunda ukufunda isihlabathi. Ingxube kufanele ibambe ukuma kwayo lapho isiminyanisiwe, kodwa iphuke ngokuhlanzekile-hhayi ukunamathela kakhulu, hhayi ukugoqa kakhulu. Uma isihlabathi sizizwa sibanda futhi isikhathi sokuhluthula sinovilapha, kungase kudingeke ukuthi ulungise iphesenti le-catalyst, mhlawumbe ngengxenye yephesenti. Kuwubizo lokwahlulela. Ngike ngabona amaqoqo onakalisiwe ngoba othile ulandele ishidi ledatha encwadini ngosuku lwasehlobo olunomswakama, enganaki iqiniso lokuthi inqwaba yesihlabathi ngasemnyango yayimunca umswakama.
Bese kuba nesihlabathi uqobo lwaso. Isihlabathi se-silica sivamile, kodwa kwezinye izinhlelo zokusebenza ezifuna ukuzinza okungcono kokushisa noma ukuqeda phezulu, ungathuthela ku-zircon noma i-chromite. Usayizi wokusanhlamvu nokusabalalisa kubaluleke kakhulu ekungeneni. Isihlabathi esihle kakhulu singabamba amagesi, okuholela ekushayweni nasezimbotsheni. Sifunde lokhu kabuhlungu ngenqwaba yezindlu zamaphampu zeklayenti, lapho uguquko kumhlinzeki wesihlabathi—izinto ezibonakala zifana nsé—ziholele esilinganisweni se-scrap esingu-15% esisuka kumonakalo ongaphansi komhlaba. I-spec sheet ithe i-AFS 55, kodwa isimo sokusanhlamvu sasihlukile, sithinta indlela amagesi aphunyuka ngayo.
Yilapho isipiliyoni se-trumps theory. Isikhathi se-muller - ukuthi uhlanganisa isikhathi esingakanani isihlabathi, i-resin, ne-catalyst - sibalulekile. Ukuxutshwa kancane, uthola izindawo ezibuthakathaka. Uxube kakhulu, uqala ukusabela ngaphambi kwesikhathi, ulahlekelwe ukuphila kwebhentshi. Uthuthukisa isigqi. Ngohlelo lwe-furan, mhlawumbe amasekhondi angu-90 ngemva kokufafaza kwe-catalyst, kodwa ubukele ukushintsha ukuthungwa. Kuyinqubo ethintekayo futhi ebonakalayo elingana nenesikhathi.
Ukwenza Iphethini kanye Nohlaka Olubalulekile
Iphethini, kungakhathaliseki ukuthi ukhuni, insimbi, noma ipulasitiki, yilapho inqubo iqala khona. Iphutha elivamile le-rookie ukubukela phansi okusalungiswa. Ngisho nokugoqeka okuhle kwesihlabathi se-resin uma kuqhathaniswa nesihlabathi esiluhlaza, udinga uhlaka olwanele lokuhlubula okuhlanzekile. Kumajometri angaphakathi ayinkimbinkimbi, kwesinye isikhathi sisebenzisa amaphethini anezingxenye eziningi noma izingcezu ezixekethile. Ngikhumbula iphethini yekesi yegiya eyinkimbinkimbi lapho ekuqaleni sigeje i-undercut yokuphrinta okuyisisekelo. Isikhunta sahlubula, kodwa saklebhula, sashiya i-sand inclusions ekubunjweni. Ukuklanywa kabusha okuncane kwephethini, okwengeza amadigri angu-1.5 nje wokusalungiswa okwengeziwe, kuxazulule ngokuphelele.
Ukuqedwa kobuso kuphethini kuhumusha ngokuqondile ekulingiseni. Iphethini ye-epoxy epholishiwe izoveza indawo ebukekayo ebushelelezi njengokungathi ukhonkolo kunokhuni olugawuliwe. Ngokugijima kwevolumu ephezulu, amaphethini ensimbi iyona ehamba phambili, kodwa kuma-prototypes noma ama-run amafushane, i-urethane ephakeme kakhulu noma ngisho nokhuni oluqinile oluvalwe kahle lungasebenza, inqobo nje uma ulandisa ngokugqoka. Impahla yephethini iyi-investimenti, futhi ikhwalithi yayo ibeka ukusebenza kahle kwayo yonke isikhunta esilandelayo.
Ukukhipha umoya kungenye i-nuance ehlobene nephethini. Iphethini idinga ama-vents abekwe ngendlela efanele, ngokuvamile izikhonkwane noma izintambo ezincane, ukuvumela umoya ukuba uphume njengoba isihlabathi sizungeza kuso. Uma lezi zivinjelwe noma zibekwe kabi, uthola izindawo ezithambile, ezingahlangene kahle esikhunjeni, okuholela ekuvuvukeni kwamaphutha noma ngisho nokuphuma ngesikhathi sokuthulula. Kuyimininingwane encane enemiphumela emikhulu.
Inqubo yokuthela kanye nokulawula ukuqinisa
Ukuthela esikhunjeni sesihlabathi se-resin kuhlukile ku-greensand. Isikhunta siqinile futhi selashiwe, ngakho-ke asinakho ukubunjwa kwe-greensand. Lokhu kusho ukuthi udinga ukuqaphela kakhulu nge-gating kanye nomklamo okhuphukayo ukuze ugweme izinyembezi ezishisayo ekufinyeleni okuvinjiwe. Sivamise ukusebenzisa imikhono yesikhuphukeli se-exothermic ukuze sigcine isikhuphukeli sensimbi sincibilike isikhathi eside, siphakela ukusakaza ngempumelelo. Amandla okupholisa kwesikhunta nawo ahlukile; Isihlabathi se-resin ngokuvamile sinokusebenza okushisayo okuphansi kunesihlabathi esiluhlaza esiminyene, esingathinta ukwakheka kokuqina, kwesinye isikhathi kuholele kokusanhlamvu okumahhadla uma kungalawulwa.
Ukulawulwa kwezinga lokushisa kwensimbi kubaluleke kakhulu. Ukuthela kushisa kakhulu kungabangela ukusabela okweqile ku-mold-metal interface, okuholela ekungeneni kanye nongqimba lwesihlabathi olushiswe okuyiphupho elibi lokuhlanza. Ukuthela okupholile kakhulu kubeka engcupheni ama-mistruns kanye nokuvalwa okubandayo. Ngokusakazwa kwensimbi yosayizi omaphakathi, singase sihlose izinga lokushisa elithelayo elizungeze u-°C, kodwa lokho kulungiselelwa ukujiya kwesigaba. Ubakaki onezindonga ezincane uwudinga ushise kunebhlokhi ewugqinsi.
I-shakeout yilapho enye inzuzo yesihlabathi se-resin sikhanya. Ngemva kokupholisa, isikhunta siyahlukana ngokoqobo ngenxa yokuwohloka okushisayo kwe-resin binder. Akudingi kakhulu ukusebenza kanzima kunokukhipha isikhunta esindayo nesihlabathi esiluhlaza. Nokho, isihlabathi manje sesonakele ngokushisa futhi simbozwe ungqimba lobumba olufile oluvela ezinhlakeni ezishile. Awukwazi ukuphinda uyisebenzise ngokuqondile. Idinga ukubuyiselwa—ukuchotshozwa, ukukhuhlwa, kanye nokwelashwa okushisayo—ukuze ifakwe kabusha ohlelweni, okungenye ingxenye yezindleko zokusebenza.
Izicelo Zomhlaba Wangempela Nokucatshangelwa Kwezinto Ezibalulekile
Ukufakwa kwesihlabathi se-resin idlula lapho udinga ukunemba kwe-dimensional, ukuqedwa okuhle kwendawo, kanye nekhono lokukhiqiza izimo eziyinkimbinkimbi ngamavolumu aphansi kuya amaphakathi. Kuyisisekelo sezikhungo zokuqalwa kwemisebenzi kanye nezingxenye eziyinkimbinkimbi kakhulu noma ezidinga ukubekezelelana okungcono kunalokho okunganikezwa yi-greensand evamile. Cabanga ngemizimba yama-valve, amabhokisi epompo, i-hardware yasolwandle, nezisekelo zemishini.
Ibanga lezinto ezibonakalayo libanzi. Sikwenze ngempumelelo nge-ductile iron, grey iron, carbon and low-alloy steels, kanye namamaki angenabala. Kodwa-ke, kuma-high-alloy steels, i-super duplex stainless, noma lawo ma-nickel akhethekile nama-alloys asekelwe ku-cobalt, kufanele uqaphele kakhulu. Umkhathi wokukhunta kanye namandla okuthatha ikhabhoni ku-binder kungaba yinkinga. Kwesinye isikhathi isistimu yokuhlanganisa ehlukile, njenge-alkaline phenolic, ikhethwa kulawa ma-alloys asebenzayo ukuze kuncishiswe ukungcoliswa kwendawo. Inkampani enesipiliyoni esijulile sezinto ezibonakalayo, njenge I-Qingdao Qiangsenyuan Technology Co., Ltd. (QSY), esebenze nge-cobalt kanye nama-alloys asekelwe ku-nickel iminyaka, ingaqonda lezi zimfihlo ngokuseduze. Ukugxila kwabo kwesikhathi eside ekusakazeni okunembayo nokwenza imishini kusho ukuthi bake bazulazula kulezi zinselele eziqondile zokusebenzisana kwesikhunta kuzo zonke izinqubo zabo ezihlukahlukene, kusukela ekubumbeni igobolondo kuye kuye. ukukhishwa kwesihlabathi se-resin.
Kuyafaneleka futhi ukuphawula ukuthi ngenkathi ukukhishwa kwesihlabathi se-resin iyaguquguquka, akuyona njalo inketho eshibhe kakhulu yezingxenye ezinkulu, ezilula. Izindleko zokuhlanganisa kanye nezindleko zokubuyiselwa kwesihlabathi zisho ukuthi intengo yesiqephu sesihlabathi iphezulu kunesihlabathi esiluhlaza. Ngakho-ke ukusetshenziswa kwayo kufakazelwa inani elengezwe ngokunemba nokuba yinkimbinkimbi. Ukuze uthole isembozo esilula somgodi? Sebenzisa i-greensand. Ukuze uthole i-prototype ye-block block enamajakhethi amanzi ayinkimbinkimbi? Yilapho isihlabathi se-resin singena khona.
Izifundo ezivela Phansi kanye Nokukhiqiza Okudidiyelwe
Esinye sezifundo ezinkulu ukuthi ukulingisa akuvamile ukuba kube yisinyathelo sokugcina. Indlela ingxenye ephuma ngayo ekubunjweni ibeka izindleko kanye nokuba nokwenzeka komshini. A eklanywe kahle ukukhishwa kwesihlabathi se-resin inqubo kufanele ihlose ukufana ne-net-shape, ukunciphisa isitokwe somshini. Lokhu kudinga ukubambisana okuseduze phakathi kwe-Foundry kanye nesitolo semishini. Imigqa ehlukanisayo ebekwe kabi noma ukujiya kodonga okungahambisani kungabangela amaphupho amabi ekulungiseni nasekugugelweni kwamathuluzi ngesikhathi sokusebenza kwe-CNC.
Yingakho imodeli yomkhiqizi ohlanganiswe ngokuqondile inamandla. Inkampani ephethe kokubili ukulingisa nokunemba kwemishini ngaphansi kophahla olulodwa, njenge QSY yenza, ingathuthukisa wonke umsebenzi. Ithimba labasunguli liyawazi amakhono nezingqinamba zemishini ye-CNC ngakolunye uhlangothi lodonga, futhi ngokuphambene nalokho. Bangakwazi ukuklama inqubo yokulingisa—okuhlanganisa ukugaywa kwesango, ukukhuphuka, kanye nokubeka okuyisisekelo—becabanga ngobuchule. Bangaqinisekisa ukuthi izindawo ezibucayi ze-datum zihlanzekile futhi ziyisicaba ngokwanele ukuthi zisetshenziselwe ukulungiswa. Le synergy yinto esungulwe ezimele noma isitolo semishini esilwela ukuphindaphinda. Ungafunda kabanzi mayelana nendlela yabo ehlanganisiwe yokusakaza nokuqeda kusayithi labo kokuthi https://www.tsingtaocnc.com.
Okokugcina, ungazinaki izici zemvelo nokuphepha. Ama-Furan resins akhulula i-formaldehyde ngesikhathi sokuxutshwa nokuthululwa. Ukungena komoya kahle kanye ne-PPE akuxoxiswana ngakho. Isihlabathi esisetshenzisiwe, uma singabuyiselwa, siba yinkinga yokulahla. Izisekelo zesimanje ziqhubekela ezinhlelweni zokuhlanganisa ezinobungani kwemvelo, kepha zivame ukuza nokuhwebelana ngezindleko noma ukusebenza. Kuyisenzo sokulinganisa njalo phakathi kwezidingo zobuchwepheshe, ezomnotho, nokuthobela imithetho.
Ngakho, uma ubheka a ukukhishwa kwesihlabathi se-resin, awubheki nje ingxenye yensimbi. Ubheka umphumela wamakhulu ezinqumo ezincane—mayelana nekhemistri, izinga lokushisa, isikhathi, kanye nomklamo. Ukuyenza kahle kuzwakala kuncane njengokulandela iresiphi futhi kufana nokucula i-orchestra lapho zonke izinsimbi zinolaka kancane. Kodwa uma konke kuhlangana ndawonye, ukunemba nobunkimbinkimbi ongakufeza yikona okugcina le nqubo yamashumi eminyaka ihambisana ngokuqinile ekukhiqizeni kwesimanje.
