Isikhunta se-Hard alloy, esaziwa ngokuthi “umama wezimboni,” sidlala indima ebalulekile ekukhiqizweni kwesimanje.Kodwa isikhunta saba khona kanjani, futhi saqala nini?
(1) Ukuthuthukiswa Kwamandla Okukhiqiza njengeSisekelo Somphakathi Sokudala Isikhunta
Ukusetshenziswa kwesikhunta kuhloswe ngayo ukuphindaphinda izinto zomumo ofanayo, ngaleyo ndlela kuthuthukiswe ukusebenza kahle kokukhiqiza kanye nekhwalithi.Omunye wabasunguli beMarxism, uFriedrich Engels, isazi sefilosofi, umcabango, nomguquli waseJalimane, wake wathi, “Lapho kunesidingo sezobuchwepheshe emphakathini, lesi sidingo siyoqhubekisela phambili isayensi emanyuvesi angaphezu kweshumi.”Lapho umphakathi ufinyelela esigabeni esithile sokuthuthuka futhi abantu banesidingo esibalulekile sokusebenzisa izinto ezifanayo, ezihlonyiswe ngobuchwepheshe obuhambisanayo namathuluzi, isikhunta sivele sibe khona.
(2) Ukutholakala Nokusetshenziswa Kwethusi Njengesisekelo Esibalulekile Sokudala Isikhunta Se-Hard Alloy.
Ezinye izazi zikholelwa ukuthi ukuzalwa kwangempela kwesikhunta kwenzeka ngesikhathi seBronze Age, cishe eminyakeni engu-5000 kuya ku-7000 edlule.Lesi sikhathi sasizungeza ukusetshenziswa kwethusi njengento eyinhloko yokwakha amathuluzi okukhiqiza ahlukahlukene, izitsha zansuku zonke, nezikhali, njengezibuko zethusi, amabhodwe, nezinkemba.Ngalesi sikhathi, izimo eziyisisekelo zokwakhiwa kwesikhunta esiqinile se-alloy zase zikhona kakade, kuhlanganise nobuchwepheshe be-metallurgical, ukukhiqizwa ngobuningi, nama-workshops okucubungula.Nokho, ukukhiqizwa kwesikhunta phakathi nalesi sikhathi kwakusekuncane futhi kusekude nokuvuthwa.
Ukufika kwesikhunta kuphawule ingqopha-mlando ebalulekile emlandweni wesintu, ukuguqula izinqubo zokukhiqiza nokuqhubekisela umphakathi entuthukweni yezobuchwepheshe kanye nokwanda kokukhiqiza.Kuyo yonke le minyaka, ukuthuthukiswa nokucwengisiswa kwesikhunta kuye kwaqhubeka kwakha izimboni ezihlukahlukene, okunomthelela emhlabeni othuthukayo wokukhiqizwa kwesimanje.”
Ukusebenza kwe-hard alloy mold materials kuhlanganisa izakhiwo zemishini, izakhiwo ezishisa kakhulu, izakhiwo ezingaphezulu, ukucutshungulwa, kanye nezakhiwo zezomnotho, phakathi kokunye.Izinhlobo ezahlukene zesikhunta zinezimo zokusebenza ezihlukene, eziholela ezidingweni ezihlukene zokusebenza kwempahla.
1. Ukuze kusebenze isikhunta esibandayo, ubulukhuni obukhulu, amandla, nokumelana nokugqokwa okuhle kubalulekile.Ukwengeza, kufanele babe namandla okucindezela aphezulu, ukuqina okuhle, nokumelana nokukhathala.
2. Endabeni yesikhunta se-alloy esishisayo esisebenza kanzima, ngaphandle kwezindawo zokushisa ezivamile, zidinga ukukhombisa ukumelana nokugqwala okuhle kakhulu, ukuzinza kokushisa, ukumelana ne-oxidation ephezulu, kanye nokumelana nokukhathala kokushisa.Kudingeka futhi ukuthi babe ne-coefficient encane yokwandisa ukushisa kanye ne-conductivity enhle yokushisa.
3. Indawo yomgodi wokukhunta kufanele ibe nobulukhuni obanele ngenkathi igcina ukuqina nokumelana nokugqoka.
Isikhunta se-Pressure die-casting sisebenza ngaphansi kwezimo ezinzima, sidinga isikhunta se-alloy eqinile ukuthi sibe nokumelana okuhle kakhulu kokugqokwa, ukumelana nokushisa, amandla okucindezela, nokumelana ne-oxidation, phakathi kwezinye izakhiwo.
Isikhathi sokuthumela: Aug-02-2023
