Ukusakaza kwesihlabathi
Ukuphonsa kwesihlabathi kusetshenziselwa ukukhiqiza izingxenye ezahlukahlukene zensimbi nge-geometries eyinkimbinkimbi. Lezi zingxenye zingahlukahluka ngosayizi nesisindo, ezisukela kuma-ounces ambalwa kumathani amaningana. Ezinye izingxenye ezincanyana zesihlabathi ezinamandla zifaka phakathi izingxenye njengamagiya, ama-pulleys, ama-crankshaft, izinduku zokuxhuma, kanye nabathengisi. Izicelo ezinkulu zifaka phakathi kwezindlu zemishini emikhulu kanye nezisekelo zomshini esindayo. Ukusakaza kwesihlabathi nakho kuvame ukukhiqiza izingxenye zezimoto, njengamabhulokhi enjini, ama-wichold enjini, amakhanda amasilinda kanye namacala okudlulisela.
Ukuphonsa kwesihlabathi, inqubo yokusakaza esetshenziswa kakhulu, isebenzisa isikhunta esihlabayo esisebenza kangaka ukwakha izingxenye eziyinkimbinkimbi zensimbi ezingenziwa cishe noma iyiphi i-alloy. Ngenxa yokuthi isikhunta sesihlabathi kufanele sibhujiswe ukuze ususe le ngxenye, okubizwa ngokuthi yi-castring, ukusakaza kwesihlabathi ngokujwayelekile kunezinga eliphansi lokukhiqiza. Inqubo yokuphonsa isihlabathi ifaka ukusetshenziswa kwesithando somlilo, insimbi, iphethini nesihlabathi. Insimbi incibilikile esithandweni somlilo base bekhanda bathela emgodini wesihlabathi, okwakhiwa iphethini. Isihlabathi isikhunta sihlukaniswa nomugqa ohlukanisayo nokuphonswa okuqinile kungasuswa. Izinyathelo ezikule nqubo zichazwa ngemininingwane enkulu esigabeni esilandelayo. Ngokuphonsa kwesihlabathi, ucezu oluyinhloko lwemishini isikhunta, esiqukethe izakhi eziningana. Isikhunta sihlukaniswe ngama-halves amabili - i-Cope (isigamu esingaphezulu) kanye nokuhudula (isigamu esiphansi), esihlangana nomugqa ohlukanisayo. Womabili la ma-halves wokubumba aqukethe ngaphakathi kwebhokisi, elibizwa nge-flask, elihlukaniswe ngalo kulomugqa ohlukanisayo. I-cavetha ye-mold yakhiwa ngokupakisha isihlabathi ezungeze iphethini engxenyeni ngayinye yeflask. Isihlabathi singafakwa ngesandla, kepha imishini esebenzisa ingcindezi noma umthelela iqinisekisa ngisho nokupakishwa kwesihlabathi futhi idinga isikhathi esincane kakhulu, ngaleyo ndlela yandisa izinga lokukhiqiza. Ngemuva kokuthi isihlabathi sesigcwele phama futhi iphethini lisusiwe, umgodi uzohlala wenza lokho kwangaphandle kokuphonswa kwangaphandle. Ezinye izindawo zangaphakathi zokuphonsa kwalo zingakhiwa ngama-cores.
Ukusakaza kwesihlabathi kuyakwazi ukusebenzisa cishe noma iyiphi i-alloy. Inzuzo yokuphonsa kwesihlabathi yikhono lokubeka izinto zokushisa eziphakeme ezinamazinga okushisa aphezulu ancibilikisiwe, kufaka phakathi insimbi, i-nickel ne-titanium. Izinto ezine ezivame kakhulu ezisetshenziswa ekusetshenzisweni kwesihlabathi ziboniswa ngezansi, kanye namazinga okushisa awo ancibilikiyo
Izinto zokushisa zokushisa
I-Aluminium Alloys 1220 ° F (660 ° C)
I-Brass Alloys 1980 ° F (1082 ° C)
Cast iron 1990-2300 ° F (1088-1260 ° C)
I-Store 2500 ° F (1371 ° C)
Izindleko ezibonakalayo zokuphonswa kwesihlabathi zihlanganisa izindleko zensimbi, zincibilike insimbi, isihlabathi esibunjiwe nesihlabathi esiyisisekelo. Izindleko zensimbi zinqunywa ngesisindo sengxenye, kubalwa kusuka engxenyeni yevolumu kanye nobuningi bezinto ezibonakalayo, kanye nentengo yeyunithi yezinto ezibonakalayo. Izindleko ezincibilikayo zizoba zikhulu ngokwesisindo esilinganiselwe futhi zithonywe impahla, njengoba ezinye izinto zokwakha zibize kakhulu ukuncibilika. Kodwa-ke, izindleko ezincibilikayo ngokujwayelekile zibaluleke kakhulu uma ziqhathaniswa nezindleko zensimbi. Inani lesihlabathi sokubumba esisetshenziswayo, yingakho izindleko, futhi ziyalingana nesisindo sengxenye. Okokugcina, izindleko zesihlabathi esiyisisekelo zinqunywa ngobungako nosayizi wama-cores asetshenziselwa ukulahla ingxenye.
Izinzuzo zenqubo yeSand Casting
Ingakhiqiza izingxenye ezinkulu kakhulu
Ingakha amajamo ayinkimbinkimbi
Izinketho eziningi zezinto ezibonakalayo
Izindleko eziphansi nezisetshenziswa
Isikhafu singaphinde sisebenze kabusha
Isikhathi esifushane sokuhola kungenzeka
Izicelo:
Izingxenye zomshini wokwakha, izingxenye zokuphamba, amabhlogo enjini kanye nama-manhold, izisekelo zomshini, amagiya, izingxenye zezolimo, izingxenye zezokwelapha, izingxenye zezimoto, izingxenye zemoto, ect.
