Njengenqubo yendabuko yokwenza umnyombo, inqubo yesihlabathi eboshwe isabambe isikhundla esibalulekile ekukhiqizeni ukusakaza.Nakuba inqubo yokwenza i-furan core, inqubo yokwenza i-cold core kanye nezinye izinqubo zikhula njalo futhi zisebenza, inqubo yayo yokwenza umnyombo isasetshenziswa kabanzi ezimbonini ezihlukahlukene zokuphonsa ngenxa yobuningi bayo obuhle kakhulu, amandla aphezulu kanye nokuzinza okushisayo, kanye nesikhathi eside sokugcina.Kusenzima ukushintsha kwezinye izimboni ezifana nezingxenye ze-hydraulic, amagobolondo e-turbine nezinye izimboni zokuphonsa eziphezulu.
Izici:
ukusebenza kahle kwamandla;i-fluidity enhle, isikhunta sesihlabathi kanye nama-sand cores akhiqizwayo anemiphetho ecacile nesakhiwo esiminyene, futhi angakhiqiza ama-sand cores ayinkimbinkimbi;izinga eliphezulu lesikhunta sesihlabathi (core) lihle, ukugoqa kwamanzi kungafinyelela ku-Ra = 6.3 ~ 12.5μm, futhi ukunemba kwe-dimensional kungafinyelela izinga le-CT7 ~ CT9;ukuhlakazeka okuhle, futhi ukubunjwa kulula ukuhlanza.
Ububanzi besicelo
Ingasetshenziselwa ukwenza kokubili ukubunjwa kokubunjwa kanye nama-sand cores.Ama-molds noma ama-cores angasetshenziswa ngokuhambisana nomunye nomunye noma nezinye izibungu zesihlabathi (ama-cores);ingasetshenziswa hhayi kuphela ukuphonsa amandla adonsela phansi ensimbi noma ukukhishwa kwengcindezi ephansi, kodwa futhi nokukhipha isihlabathi sensimbi nokusakazwa kwe-centrifugal okushisayo;ingasetshenziswa hhayi kuphela ukukhiqizwa kwe-cast iron kanye ne-non-ferrous alloy castings, kodwa futhi nokukhiqizwa kwensimbi yensimbi.
ukwakheka
Ngokuvamile kwakhiwa ngezinto eziphikisayo, izibophezelo, ama-ejenti okwelapha, okothambisa kanye nezithasiselo ezikhethekile.
(1) Izinto eziphikisayo ziyizingxenye zayo eziyinhloko.Izidingo zezinto eziphikisayo yilezi: ukungaguquguquki okuphezulu, ukuguquguquka okuncane, izinhlayiya eziyindilinga uma kuqhathaniswa, okuqinile, njll. Ngokuvamile kusetshenziswa isihlabathi se-silica esikhuhliwe semvelo.Izidingo zesihlabathi se-silica yilezi: okuqukethwe okuphezulu kwe-SiO2 (i-cast iron kanye ne-non-ferrous alloy castings idinga okungaphezu kuka-90%, futhi izingxenye zensimbi ezibunjiwe zidinga okungaphezu kuka-97%);udaka alukho ngaphezu kuka-0.3% (esihlabathini esikhuhliwe)–[udaka esihlabathini esigeziwe lungaphansi;usayizi wezinhlayiyana ① usatshalaliswa ezinombolweni zesisefo ezi-3 kuya kwezi-5 eziseduze;ukuma kwezinhlayiyana kuyindilinga, futhi isici se-angular akufanele sibe sikhulu kuno-1.3;inani lokusetshenziswa kwe-asidi alikho ngaphansi kuka-5ml.
(2) I-phenolic resin ngokuvamile isetshenziswa njenge-binder.
(3) I-Hexamethylenetetramine ivame ukusetshenziswa njenge-ejenti yokwelapha;I-calcium stearate ngokuvamile isetshenziswa njenge-lubricant, esetshenziselwa ukuvimbela ukuhlangana nokwandisa uketshezi.Umsebenzi oyinhloko we-additive ukuthuthukisa ukusebenza kwesihlabathi esiboshwe.
(4) Isilinganiso esiyisisekelo se-Component Ratio (ingxenye enkulu, %) Incazelo: Isihlabathi esiluhlaza 100 Isihlabathi sokukhuhla, i-Phenolic resin 1.0-3.0 (isisindo sesihlabathi esiluhlaza), i-Hexamethylenetetramine (isixazululo esinamanzi 2) 10-15 (isisindo se-resin), i-Calcium i-stearate 5-7 (isisindo se-resin), Izithasiselo 0.1-0.5 (isisindo sesihlabathi esiluhlaza).1:2) 10-15 (isisindo se-resin), i-Calcium stearate 5-7 (isisindo se-resin), Izithasiselo 0.1-0.5 (isisindo sesihlabathi esiluhlaza).
Inqubo yokukhiqiza
Inqubo yokulungiselela ikakhulukazi ihlanganisa ukugqoka okubandayo, ukugqoka okufudumele nokushisa okushisayo.Njengamanje, ukukhiqizwa cishe konke kusebenzisa ukugqoka okushisayo.Inqubo yokushisa eshisayo iwukushisa isihlabathi esiluhlaza ekushiseni okuthile, bese uxuba futhi ugovuze nge-resin, i-urotropine aqueous solution kanye ne-calcium stearate ngokulandelanayo, bese upholisa, uchoboze futhi usikrini.Ngenxa yomehluko kufomula, inqubo yokuxuba ihlukile.Njengamanje, kunezinhlobo eziningi zemigqa yokukhiqiza e-China.Kukhona cishe imigqa yokukhiqiza eyi-semi-automatic engaba ngu-2000 ~ 2300 enokudla okwenziwa ngesandla, futhi kunemigqa yokukhiqiza elawulwa yikhompuyutha elawulwa ngokugcwele engu-50, ethuthukisa ngempumelelo ukukhiqiza nokuzinza komkhiqizo.Isibonelo, ulayini wokukhiqiza obonakalayo ozenzakalelayo we-xx Casting Co., Ltd. unokunemba kokulawula isikhathi sokuphakela okungu-0.1 isekhondi, ukulawula izinga lokushisa lokushisa okunembile okungu-1/10℃, futhi isimo sokuhlanganisa isihlabathi singabonwa ngaso sonke isikhathi ngevidiyo. , enekhono lokukhiqiza lamathani angu-6 ngehora.
Izinzuzo zenqubo
I-fluidity enhle kakhulu
Imbozwe ngenhlaka eqinile futhi ibonakala njengesihlabathi esomile.I-fluidity enhle kakhulu iyinzuzo yayo enkulu, elungele ikakhulukazi ama-sand cores ayinkimbinkimbi futhi amancane.
Ikhwalithi ephezulu ye-sand core
Ihlanganiswe ngokuqhunyiswa kwesibhamu, futhi ingaphezulu le-sand core liminyene futhi libushelelezi, elingathuthukisa ngokuphumelelayo ukuphela kwendawo yokukhipha.
Izindleko eziphansi zokwenza igobolondo core
Inezinga eliphezulu lokuncibilika futhi ingasetshenziselwa ukwenza igobolondo eliwumgogodla, ngokusetshenziswa okuncane kwesihlabathi, izindleko eziphansi kanye nokungena komoya okungcono.
Amandla aphezulu nokuzinza okushisayo
usebenzisa i-thermoplastic phenolic resin, inamandla aphezulu kanye nokuzinza kokushisa, okuyinikeza izinzuzo eziyingqayizivele ekusetshenzisweni kwezinye izingxenye eziwugqinsi nezinkulu.
Isikhathi eside sokugcinwa kwe-sand core
I-alkaline phenolic resin esetshenziswa esihlabathini esiboshwe i-hydrophobic, umgogodla wesihlabathi unokumelana nokuswakama okuhle, azikho izidingo ezikhethekile zendawo yokugcina izinto, futhi akukho kuncipha okuphawulekayo kwamandla ngemva kokugcinwa isikhathi eside.
Uhla olubanzi lohlelo lokusebenza
I-sand core eboshwe ilungele izinqubo zokuphonsa zonke izinto zensimbi.
If you want to know more about shell mold casting process, pls feel free to contact lydia@welongchina.com.
Isikhathi sokuthumela: Jun-13-2024
