Insimbi yasentwasahlobozingahlukaniswa zibe isiphethu esishisayo esakhayo kanye nesiphethu esibandayo esakhayo ngokwezindlela ezahlukene zokwakha.
Ukwelashwa kokushisa kwemithombo ye-thermoforming. Imithombo ye-Thermoforming isetshenziselwa ukwenza iziphethu zezimo ezinkulu noma eziyinkimbinkimbi. Ngokuvamile, ukushisa okucishayo kuhlanganiswe nokwakheka. Okusho ukuthi, izinga lokushisa lokushisa liphakeme kancane kunezinga lokushisa lokucisha (830 ℃ ~ 880 ℃), ngemva kokushisa, ukwakheka kwekhoyili eshisayo kwenziwa, bese ukushisa kwemfucuza kucinywe, futhi ekugcineni ukushisa okuphakathi kwezinga lokushisa kwenziwa ku-350 ℃ ~ 450 ℃, ukuze kutholwe isakhiwo se-tretinite esishisayo.
Izinga eliphezulu lensimbi yasentwasahlobo libaluleke kakhulu ngenxa yokucindezeleka okukhulu kwe-torsional nokugoba. I-Surface decarburization yiyona taboo kakhulu, izonciphisa kakhulu amandla okukhathala kwensimbi. Ngakho-ke, izinga lokushisa lokushisa, isikhathi sokushisa kanye nendawo yokushisa kufanele inake ukukhethwa nokulawula. Ngaphezu kwalokho, ukuchama ngemuva kokushisa kuyasiza futhi ukuqeda ukukhubazeka okungaphezulu okufana ne-decarburization, imifantu, i-inclusions kanye nokumaka, futhi kuqinise indawo engaphezulu ukuze kwakheke ukucindezeleka okusalayo nokuthuthukisa amandla okukhathala entwasahlobo.
Ukwelashwa kokushisa kweziphethu ezibandayo ezakhayo. Insimbi yasentwasahlobo eyakhiwe ngendlela ebandayo iqala ngemva kokucisha, ukwelashwa okushisayo, noma ngemva kokucinywa kwe-isothermal, bese kuba ngomdwebo obandayo ukuze uthole intambo yensimbi enamandla amakhulu, bese usebenzisa le ntambo yensimbi ngokuqondile ukugingqa isiphethu esidingekayo. Le ntwasahlobo ayisakhiwa ngemva kokucisha ukwelashwa, kuphela ukushisa okuphansi kwe-180 ~ 370 ℃ okuphansi nokuphakathi, ukuze kuqedwe ukucindezeleka kwangaphakathi okubangelwa ukwakheka. Usayizi wesigaba esiphambanayo walolu hlobo lwensimbi yasentwasahlobo mncane, ngokuya ngenqubo yokucisha kanye neyokushisa ngaphambi kokwakheka ihlukaniswe ngocingo lwensimbi olushisayo olushisayo kanye nocingo lwensimbi olushisayo olubandayo oludonsa uwoyela. Owokuqala ukucisha uwoyela + ukwelashwa kokushisa okumaphakathi; Lokhu kokugcina kubhekisela ekugezeni okuholayo (500~550℃) ukucisha isothermal ukwenza uguquko lwe-sotenite, bese kuthi ngokuqiniswa komdwebo obandayo okuningana.
Uma ububanzi bocingo lwasentwasahlobo bukhulu kakhulu, obufana no-Φ> 15mm, ukushuba kwepuleti h> 8mm, kuzoba nomkhuba wokucisha opaque, okuholela ekunciphiseni komkhawulo wokunwebeka, amandla okukhathala, ngakho ukuqina kwensimbi yasentwasahlobo kumele kuhambisane nobubanzi bezinto zasentwasahlobo.
Isikhathi sokuthumela: Mar-29-2023