Ukuthambekela kokuqhekeka nokucindezela kwesizukulwane se-Aluminium Alloy
Ukuthambekela kokuqhekeka nokucindezela kwesizukulwane se-Aluminium Alloy
Ngesikhathi sokuqina nokuncipha kwe-alloy, ukumelana kwangaphandle kukhulu kakhulu, futhi kulula ukukhiqiza imifantu. I-Aluminium die-casting ngokuvamile inokuthambekela kokuqhekeka, kuyilapho ama-Al-Si nama-Al-Mg alloys enokuthambekela okuphezulu kokuqhekeka. |
Imifantu yehlukile kunemifantu eshisayo nemifantu ebandayo. Bheka imifantu, ukubukeka ku-zigzag futhi akujwayelekile, ingaphezulu line-oxidized kakhulu, i-matte iyimifantu eshisayo, kanti ikhanda liyimifantu ebandayo.
Ukuqhekeka okushisayo kwenzeka ngesikhathi sokuqina kwe-alloy, okungukuthi, ama-alloys amaningi akhe amathambo e-dendrite futhi aqala ukuqina, kepha kusekhona inani elincane loketshezi ezingxenyeni ze-dendrite. Ngalesi sikhathi, ukuncipha komugqa kwe-alloy kukhulu kakhulu futhi amandla okushisa we-alloy aphansi kakhulu. Isikhunta sivimbela ukuncipha kwaso futhi sidale ukucindezela kokuncipha. Lapho uhlobo lwayo lukhulu kunohlobo oluvumelekile lwamandla we-alloy kuleli zinga lokushisa, imifantu iyenzeka.
Ukuqhekeka okubandayo ukuthi ingxubevange ivinjelwe kakhulu noma ingaphansi kwamandla angaphandle lapho okuqinile kuncipha, njengesihlabathi esiwa ngaphambi kwesikhathi noma ukulimala kwemishini ngesikhathi sokuhlanza. Ukuqhekeka kwamakhaza akuvamile ukwenzeka.
Lapho ukusakazwa kuvinjiwe ngesikhathi sokuqiniswa nokupholisa kwenqubo kusikhunta, ukucindezeleka kanye nokusonteka kuzokwenzeka. Ukucindezeleka kusesilinganisweni samandla okunwebeka. Ukucindezela okusele kuzobakhona ekusakazweni, kunciphise amandla wedizayini yokusakaza. Ukusakazwa kuzokhubazeka ngesikhathi sokusetshenziswa nokucutshungulwa, kuthinta ukunemba nokuhlangana kokusakaza. .
Ingcindezi yokusakaza iqukethe izingxenye ezintathu: ukucindezelwa okushisayo, ukucindezela kokuguqulwa kwesigaba nokucindezela kwe-shrinkage. Ukucindezela okusakazwayo kwe- kufas ingaqedwa ngokunamathisela ukwehluleka kwemvelo kwezimpahla.
Xhumanisa nale ndatshana: Ukuthambekela kokuqhekeka nokucindezela kwesizukulwane se-Aluminium Alloy
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