Ikhwalithi ephezuluinsimbi ye-aluminiumi-billet yokukhiqiza akufanele ibe nokukhuluphala okuphawulekayo, i-porosity, nokuqukethwe okuphansi kwe-hydrogen nokufakwa kwe-oxidation, okusanhlamvu okuhle. Ukuze kwandiswe ukusatshalaliswa kwezinhlayiya zesigaba sokusabalalisa ngemva kokulinganisa kwe-alloy, inqubo ye-avareji yezigaba ezimbili yokushisa okuphansi bese izinga lokushisa eliphezulu lingamukelwa. Ngemuva kokulinganisa okuphindwe kabili, izinhlayiya zokuhlakazeka ku-alloy zisakazwa ngokulinganayo futhi zilungile. Ingxubevange ye-aluminium enamandla amakhulu inobubanzi obucwebezelayo obubanzi kanye nokuthambekela okukhulu kokuqhekeka kwe-eutectic ngesikhathi sokuqina okungalingani.
Ubuchwepheshe obunyakazayo be-Melt electromagnetic ukukhiqiza amandla kazibuthe echibini le-aluminium elincibilikisiwe, ukunyakazisa umsebenzi we-aluminium incibilike echibini elincibilikisiwe, wenze isilinganiso sokuncibilika kokuncibilika, ugweme ukungcoliswa kwamathuluzi ensimbi ngesikhathi sokunyakaziswa kwezandla. Umshini wokubumba oqhubekayo we-Hydraulic semi-continuous forging, onezici zokusebenza okuzinzile, izinga eliphezulu lokuzenzakalelayo kanye nokunemba okuphezulu kokulawula. Umsebenzi wokugcina we-aviation aluminium ingot uhlobene eduze nesakhiwo sayo.
Ngakho-ke, ayikho i-crack ingot forging enkulu ukucaciswa okukhulu kokukhiqizwa kwezinto ezibonakalayo ukuxazulula ukuhlehliswa kwehabhu. Ngoba ubukhulu be-ingot bukhulu, ingcindezi yokushisa yokufinyela inkulu, KULULA ukuhlanya. Ukuze wenze ingot enkulu engena-crack enekhwalithi ephezulu, uchungechunge lobuchwepheshe bokuncibilika nokuphonsa senziwe. I-Melt electromagnetic stirring ingenye yobuchwepheshe obusha obubaluleke kakhulu. Ngenxa yokuqukethwe okuphezulu kwezakhi eziyinhloko ku-alloy, amandla aphezulu e-aluminium alloy kulula ukukhiqiza ukuhlukaniswa ekuncibilikeni, kunzima ukusabalalisa ngokulinganayo, futhi izinga le-nucleation liyancishiswa, ubukhulu bokusanhlamvu buyi-coarse. Ngesikhathi esifanayo, i-ingot billet ihlolwe ngokutholwa kwamaphutha e-ultrasonic ukuze kufakwe, imifantu, ama-pores nokunye ukukhubazeka. Ngaphezu kokuqukethwe kwe-hydrogen, ezinye izinsimbi ze-alkali i-Li, i-Na, i-K nezinsimbi zomhlaba ezine-alkaline u-Ca nazo kufanele zilawulwe ngokuqinile.
I-ingot enkulu ebanzi ebanzi kulula ukuqhekeka ngesikhathi sokuqamba. Ukulawulwa okuzinzile kwenqubo yokubumba kubaluleke kakhulu ekwakhiweni kwe-aluminium ingot. Ukwelashwa okujwayelekile kungenza ukwakheka kwe-alloy kusatshalaliswe ngokulinganayo, kususe isigaba sephuzu elincibilikayo elingalingani, i-spheroidize isigaba sesibili esiqinile, yakha isigaba sokuhlakazeka esivumelanayo sokucubungula okulandelayo ukuze kulawulwe ukwakheka okusanhlamvu kwento, ukunciphisa ukuzwela kokucisha kwe-alloy, ukuthuthukisa amandla nokuqina kwento yokulungiselela izicubu.
Isikhathi sokuthumela: Aug-17-2022