Ukwelashwa kokushisa nge-vacuumkuyinqubo eyinhloko yokuthuthukisa izakhiwo zomzimba nezemishini zezingxenye zensimbi. Kuhilela ukushisa insimbi ekamelweni elivaliwe kuze kufike ekushiseni okuphezulu ngenkathi kugcinwa ingcindezi ephansi, okubangela ukuba ama-molecule egesi aphume futhi kuvumela inqubo yokushisa efanayo. Elinye lamathuluzi abalulekile asetshenziswa ekwelapheni ukushisa kwe-vacuum isithando sokushisa se-vacuum, esingalawula ngokunembile izinga lokushisa, umoya kanye nengcindezi enkambisweni.
Ukuqinisa i-vacuum kuyindlela evamile esetshenziswa abakhiqizi ukwandisa amandla nokuqina kwezingxenye zensimbi. Ngokufudumeza insimbi emazingeni okushisa aphezulu esithandweni se-vacuum, idlula ekuguqulweni okubizwa ngokuthi i-austenitization, okudala isakhiwo esincane esifanayo futhi kuthuthukise izakhiwo zemishini. Le nqubo ivame ukusetshenziswa ukuqinisa izinto ezifana nensimbi, i-titanium kanye nama-superalloys asetshenziswa kabanzi ekusetshenzisweni kokucindezeleka okukhulu.
Ukwelashwa ngokushisa nge-vacuum kubalulekile hhayi nje ekuqiniseni, kodwa nakwezinye izinqubo eziningana ezifana nokubhoboza, ukuthulula kanye nokufaka i-annealing. Kunikeza izinzuzo eziningana kunezindlela zokwelapha ngokushisa zendabuko, okuhlanganisa ikhwalithi ephezulu kanye nokuphindaphindeka, ukuhlanekezela okuncishisiwe, kanye nekhono lokusebenzisa ama-alloy asebenza kahle njengalawo atholakala ezimbonini zezindiza kanye nezokwelapha. Ngalokhu engqondweni, kusobala ukuthi ukwelashwa ngokushisa nge-vacuum kuyinqubo ebalulekile ezimbonini eziningi, okuletha ukusebenza okuthuthukisiwe kwezingxenye ngokusebenza kahle okukhulu kanye nokuthembeka.
Uma ukhethaisithando sokushisa se-vacuum, izici eziningana kumele zicatshangelwe, njengohlobo lwesithando somlilo (iqembu noma eliqhubekayo), izinga lokushisa eliphezulu kanye nosayizi wegumbi lesithando somlilo. Ukukhetha isithando somlilo esifanele kuzoncika ekusetshenzisweni okuthile kanye nohlobo lwezinto ezicutshungulwayo. Isithando somlilo esifanele singonga amandla, sithuthukise ikhwalithi yomkhiqizo futhi sinciphise izindleko zokucubungula, kanti isithando somlilo esingalungile singathinta kakhulu ikhwalithi yomkhiqizo wokugcina.
Ngamafuphi, ukwelashwa ngokushisa nge-vacuum kuyinqubo ebalulekile yokuthuthukisa ukusebenza kwezingxenye zensimbi. Ukukhetha isithando esifanele kubalulekile empumelelweni yenqubo yakho, ukwenza ngcono ukwelashwa ngokushisa nokuqinisekisa ikhwalithi yomkhiqizo. Izimboni zezindiza, zezimoto, zezokwelapha, kanye nezinye izimboni eziningi zithembele ekwelashweni ngokushisa nge-vacuum, ngakho-ke ukuthola umhlinzeki othembekile wenqubo kubalulekile.
Isikhathi sokuthunyelwe: Mashi-29-2023