I-ductile cast iron castings ekhiqizwa yi-resin coated sand casting evela enkampanini yokuphonsa yaseChina ngeCNC imishinikanye nezinsiza zokuhlola.
I-resin coated sand casting isetshenziswa kabanzi ukukhiqizaukusakaza ngokwezifisonezidingo eziphakeme kuneinqubo yokuphonsa isihlabathi esiluhlaza. Ngaphambi kokwenza isikhunta nomgogodla, isihlabathi esimboziwe simbozwe ngefilimu ye-resin eqinile ebusweni bezinhlayiya zesihlabathi. Isihlabathi esimboziwe sibizwa nangokuthi igobolondo (core) sand. Inqubo yobuchwepheshe iwukuhlanganisa ngomshini isihlahla se-phenolic se-thermosetting esiyimpuphu nesihlabathi esingavuthiwe bese siqina lapho sishiswa. Seyenziwe yaba isihlabathi esimboziwe kusetshenziswa i-thermoplastic phenolic resin plus latent healing agent (efana ne-urotropine) kanye ne-lubricant (njenge-calcium stearate) ngenqubo ethile yokumboza. Lapho isihlabathi esimboziwe sifudumala, inhlaka embozwe phezu kwezinhlayiya zesihlabathi iyancibilika. Ngaphansi kwesenzo seqembu le-methylene eliboliswe yi-Maltropine, inhlaka encibilikisiwe iguquka ngokushesha isuka esakhiweni esiwumugqa iye esakhiweni somzimba esingenakunyakaziswa ukuze isihlabathi esimboziwe siqine futhi sakheke. Ngaphezu kohlobo olujwayelekile lwe-granular eyomile yesihlabathi esimboziwe, kukhona nesihlabathi esimanzi futhi esinama-viscous.
Ukubunjwa kwesihlabathi esimbozwe nge-resin kunezici ezilandelayo
1) Inokusebenza okufanelekile kwamandla. Ingakwazi ukuhlangabezana nezidingo zesihlabathi esiwumgogodla wegobolondo eliphezulu, isihlabathi sebhokisi elishisayo esinamandla amaphakathi, nesihlabathi esinengxubevange engeyona insimbi enamandla aphansi.
I-2) I-fluidity enhle kakhulu, ukubumba okuhle komgogodla wesihlabathi kanye nohlaka olucacile, olungakhiqiza ama-sand cores ayinkimbinkimbi kakhulu, njengama-sand cores ebhantshi lamanzi njengamakhanda e-cylinder kanye nemizimba yomshini.
3) Izinga eliphezulu le-sand core lihle, lihlangene futhi alikhululekile. Ngisho noma kusetshenziswa ukumbozwa okuncane noma kungasebenzi, ikhwalithi engcono yangaphezulu ye-castings ingatholakala. Ukunemba kwe-dimensional kokulingisa kungafinyelela ku-CT7-CT8, futhi ubulukhuni be-Ra bungafinyelela ku-6.3-12.5μm.
I-4) Ukugoqeka okuhle, okulungele ukuhlanza nokuthuthukisa ukusebenza komkhiqizo
I-5) Umgogodla wesihlabathi akulula ukumunca umswakama, futhi amandla okugcina isikhathi eside akulula ukunciphisa, okulungele ukugcina, ukuthutha nokusetshenziswa.
Izinqubo zokukhiqiza ze-resin camera sand mold (core) making forukubunjwa kwegobolondo:
1. Inqubo eyisisekelo yokukhiqiza isikhunta sesihlabathi esinamekwe (umgogodla) yilena: flip noma vunguza isihlabathi→uqweqwe →ukuphuma kwesihlabathi→ukuqiniswa→umgogodla (isikhunta) nokunye.
1) Phenduka noma uvuthulule isihlabathi. Okusho ukuthi, isihlabathi esiboshwe sithululelwa esikhunjeni segobolondo noma siqhunyiswe ebhokisini eliyinhloko ukuze kukhiqizwe igobolondo noma umgogodla wegobolondo.
2) Ukuthunjwa. Ubukhulu bengqimba yegobolondo kulawulwa ngokulungisa izinga lokushisa lokushisa kanye nesikhathi sokubamba.
3) Ukukhishwa kwesihlabathi. Tshekisa isikhunta nebhokisi eliwumgogodla ukuze wenze isihlabathi esingaphenduliwe siwele endaweni yegobolondo elishisayo, bese usiqoqa ukuze siphinde sisetshenziswe. Ukuze kube lula ukususa isihlabathi esihlanganisiwe esingancibilikisiwe, uma kunesidingo, indlela yomshini wokuthuthumela emuva naphambili ingamukelwa.
4) Ukuqina. Esimweni sokushisa, ukuze wenze ukushuba kwegobolondo kube okufanayo, kwenze ukuthintana nobuso begobolondo elishisayo phakathi nesikhathi esithile ukuze uqhubeke nokuqina.
5) Thatha ingqikithi. Khipha umumo wegobolondo eliqinile kanye nomgogodla wegobolondo ngaphandle kwesikhunta kanye nebhokisi eliwumgogodla.
Izinto Zokusetshenziswa Zokusetshenziswa Kwenqubo Yokusakaza Ngesihlabathi Efakwe I-resin:
• I-Cast Iron: I-Grey Cast Iron, I-Ductile Cast Iron.
• I-Cast Carbon Steel ne-Alloy Steel: I-Low Carbon Steel, i-Medium Carbon Steel kanye ne-High Carbon Steel kusukela ku-AISI 1020 kuya ku-AISI 1060; 20CrMnTi, 20SiMn, 30SiMn, 30CrMo, 35CrMo, 35SiMn, 35CrMnSi, 40Mn, 40Cr, 42Cr, 42CrMo... njll ngesicelo.
• I-Cast Stainless Steel: I-AISI 304, i-AISI 304L, i-AISI 316, i-AISI 316L nelinye ibanga lensimbi engagqwali.
• Ama-Aluminium Alloys asakazwayo.
• Ithusi nethusi.
• Ezinye Izinto kanye Namazinga ngokucelwa
▶ Amandla Okusakaza Isihlabathi Esimbozwe Ngeresin:
• Ubukhulu Usayizi: 1,000 mm × 800 mm × 500 mm
• I-Weight Range: 0.5 kg - 100 kg
• Amandla onyaka: amathani ayi-2,000
• Ukubekezelelana: Ngesicelo.
▶ Ukuhlola Ukusakazwa Kwesihlabathi Esinamekwe Ngeresin:
• Ukuhlaziywa kobuningi be-Spectrographic kanye nemanuwali
• Ukuhlaziywa kwe-Metallographic
• Ukuhlolwa kokuqina kukaBrinell, Rockwell kanye noVickers
• Ukuhlaziywa kwempahla yemishini
• Ukuhlolwa komthelela wezinga lokushisa eliphansi nelivamile
• Ukuhlolwa kwenhlanzeko
• Ukuhlolwa kwe-UT, MT kanye ne-RT
▶ Izinqubo zokusakazwa kwesihlabathi esimbozwe nge-resin:
✔ Ukwenza Amaphethini Ensimbi. Isihlabathi se-resin esinamekwe ngaphambili sidinga ukushisisa kumaphethini, ngakho-ke amaphethini ensimbi ayithuluzi elidingekayo ukwenza ukubunjwa kwegobolondo.
✔ Ukwenza Isikhunta Sesihlabathi Esifakwe Ngaphambili. Ngemuva kokufaka amaphethini ensimbi emshinini wokubumba, isihlabathi se-resin esandulelwe ngaphambili sizodutshulwa emaphethini, futhi ngemva kokushisa, ukugqoka kwe-resin kuzoncibilika, khona-ke isikhunta sesihlabathi sibe igobolondo lesihlabathi esiqinile kanye nama-cores.
✔ Ukuncibilikisa i-Cast Metal. Kusetshenziswa iziko lokungeniswa, izinto zingancibilika zibe uketshezi, bese ukwakheka kwamakhemikhali ensimbi ewuketshezi kufanele kuhlaziywe ukuze kufane nezinombolo ezidingekayo namaphesenti.
✔ Ukuthela Insimbi. Lapho insimbi encibilikisiwe ihlangabezana nezidingo, izothululelwa ezibunjeni zegobolondo. Ngokusekelwe ezinhlamvini ezihlukene zomklamo wokulingisa, isikhunta segobolondo sizongcwatshwa esihlabathini esiluhlaza noma sipakishwe ngezandlalelo.
✔ Shot Blasting, Grinding and Cleaning. Ngemva kokupholisa nokuqiniswa kwama-castings, izikhuphukeli, amasango noma insimbi eyengeziwe kufanele inqunywe futhi isuswe. Khona-ke insimbi izohlanzwa ngemishini yokuchaya isihlabathi noma imishini yokudubula. Ngemva kokugaya ikhanda le-gating kanye nemigqa yokuhlukanisa, izingxenye zokuphonsa eziqediwe zizofika, zilindele izinqubo ezengeziwe uma kudingeka.
▶ Inqubo yokusakazwa kwangemuva
• Ukukhipha imali nokuhlanza
• Ukuqhunyiswa Kokudubula / Ukupena Isihlabathi
• Ukwelashwa Kokushisa: Ukujwayela, Ukucisha, Ukushisa, I-Carburization, I-Nitriding
• Ukwelashwa kwendawo: Passivation, Andonizing, Electroplating, Hot Zinc Plating, Zinc Plating, Nickel Plating, Polishing, Electro-Polishing, Painting, GeoMet, Zintec.
• CNC Machining: Turning, Milling, Lathing, Drilling, Honing, Grinding.
▶ Kungani Ukhetha I-RMC Yezingxenye Zokusakaza Ze-Shell Mold?
✔ Ukunemba ngakho-ke ukusetshenziswa okuphezulu kwempahla. Uzothola imikhiqizo enetha noma eseduze nenetha ngemuva kokubunjwa kwegobolondo, kuye ngezidingo zabasebenzisi bokugcina, ngeke kube khona noma kuncane kakhulu inqubo yokwenza imishini edingekayo.
✔ Ukusebenza okungcono kwendawo. Ngenxa yezinto zobuchwepheshe obusha bokubumba, ama-castings avela ekubunjweni kwamagobolondo anendawo enhle kakhulu futhi enemba ephakeme.
✔ Ukukhetha okuhle okunokulinganisela uma kuqhathaniswa nokusakazwa kwesihlabathi kanye nokutshalwa kwezimali. Ukubunjwa kwegobolondo kunokusebenza okungcono kanye nengaphezulu kunokusakaza kwesihlabathi, kuyilapho kunezindleko eziphansi kakhulu kunokunemba kokutshala imali.
▶ Imigomo Yentengiso Ejwayelekile
• Ukugeleza komsebenzi okuyinhloko: Umbuzo & Ikhotheshini → Ukuqinisekisa Imininingwane / Iziphakamiso Zokwehliswa Kwezindleko → Ukuthuthukiswa Kwamathuluzi → Ukusakaza Kwesivivinyo → Ukuvunyelwa kwamasampuli → Umyalelo Wesivivinyo → Ukukhiqizwa Okuningi → Ukuqhutshwa Kwe-oda Eliqhubekayo
• Isikhathi sokuqala: Isilinganiso sezinsuku eziyi-15-25 zokuthuthukiswa kwamathuluzi kanye nezinsuku ezilinganiselwa ku-20 zokukhiqiza ngobuningi.
• Imigomo Yokukhokha: Kuzoxoxiswana.
• Izindlela zokukhokha: T/T, L/C, West Union, Paypal.
