Thepa ea ultrasonic metal melt processing e entsoe ka likarolo tsa ultrasonic vibration le jenereithara ea ultrasonic: likarolo tsa ultrasonic vibration li sebelisetsoa ho hlahisa vibration ea ultrasonic - haholo-holo ho kenyelletsa transducer ea ultrasonic, lenaka la ultrasonic le hlooho ea sesebelisoa (hlooho e fetisang), 'me e fetisetsa matla ana a vibration ho tšepe. qhibilihisa.

Mosebetsi oa ho qhibiliha ha tšepe ea ultrasonic:

1. Ho tlosa litšila: ho thata haholo hore li-inclusions tse nyenyane ka tšepe ea metsi li phalle holimo.Ke feela ha ba bokana moo ho tla ba bonolo ho phaphamala.Ho sebelisa lisebelisoa tsa phekolo ea ultrasonic metal melt ho eketsa ultrasonic ka tharollo, leqhubu la ho ema la ultrasonic le ka etsa hore ho kenyelletsoa phofo ka tharollo ea delamination le agglomeration ka katleho.

2. Ultrasonic degassing: ultrasonic e na le phello e kholo ea ho tlosa khase ho tloha tšepe e qhibilihisitsoeng.Ultrasonic elastic vibration e ka senya motsoako ka ho feletseng ka metsotso e seng mekae.Ha ho sisinyeha ha ultrasonic ho kenngoa ka tšepe e qhibilihisitsoeng, ho fumanoa hore ho na le ts'ebetso ea cavitation, e bakoang ke sekoti se hlahisoang ka mor'a hore ho tsoele pele ha mokelikeli oa mokelikeli o robehe, kahoo khase e qhibilihisitsoeng ka har'a tšepe ea metsi e tsepamisitse maikutlo ho eona.

3. Ntlafatso ea lijo-thollo: ha ho hlahisa li-castings ka mokhoa oa ho tiisa ultrasonic vibration, leqhubu la ultrasonic le tla hlahisa khatello ea molumo e ntle le e mpe le ho etsa jet.Ka nako e ts'oanang, ka lebaka la phello e sa tsitsang, e tla hlahisa phallo ea molumo le micro sound flow, ha ultrasonic cavitation e tla hlahisa jet e phahameng ea lebelo ho sebopeho pakeng tsa tiileng le metsi.

Phello ea cavitation ka metsi a ultrasonic e ka khaola le ho senya li-dendrites, ea ama karolo e ka pele ea ho tiisa, ea eketsa phello ea ho susumetsa le ho hasana, le ho hloekisa sebopeho, ho hloekisa lijo-thollo le homogenize sebopeho.

Ho phaella ho tšenyo ea mechine ea li-dendrite e bakoang ke ho sisinyeha, karolo e 'ngoe ea bohlokoa ea ultrasonic vibration solidification ke ho ntlafatsa undercooling e sebetsang ea tšepe ea metsi le ho fokotsa radius ea bohlokoa ea nucleus, e le ho eketsa sekhahla sa nucleation le ho hloekisa lijo-thollo.

3. Ntlafatsa boleng ba slab: lisebelisoa tsa phekolo ea tšepe ea ultrasonic e qhibilihisang e ka sebetsa ka hlobo ho ntlafatsa boleng ba holim'a letlapa.Ho sisinyeha ha hlobo ka ultrasonic ho ka sebelisoa bakeng sa billet, palesa le letlapa, 'me ha ho na ho thella ho fosahetseng ha ultrasonic vibration e sebelisoa.Ha u lahla billet le palesa, sebaka se boreleli haholo sa billet se ka fumanoa ka mor'a ho sebelisa vibration ea ultrasonic ho hlobo.


Nako ea poso: Apr-08-2022