Ibanga:20 insimbi
Okujwayelekile:I-GB/T 699-1999

izici
Ukuqina kuphakeme kancane kunensimbi eyi-15, akuvamile ukucisha, akukho ukufutheka okubandayo kwe-deformation plasticity okusezingeni eliphezulu okujwayelekile kokugoba i-calender flanging kanye nokucubungula isando, njenge-arch arc welding kanye nokumelana nokushisela ukusebenza kahle kwe-welding, ukushisela lapho ubukhulu buncane, ukubukeka okuqinile noma Umumo wezingxenye eziyinkimbinkimbi ezijwayele ukuqhekeka ekusikeni komshini isimo sokubanda esidonswayo noma esijwayelekile esisetshenziswa lapho kwakhiwa amandla asisikhulu futhi sinzima kakhulu.
Insimbi ingeyensimbi yensimbi enekhabhoni ephansi enekhabhoni esezingeni eliphezulu, i-cold extrusion carburized hardening steel, insimbi inamandla aphansi, ukuqina okuhle, ipulasitiki kanye nokushisela, amandla aqinile angama-355-500mpa, izinga lokweba lama-24%
Ukwenza okujwayelekile kungakhuthaza i-spheroidization yensimbi, kucwengisise i-block proeutectoid ferrite enkulu, futhi kuthuthukise ukusebenza kokusika kwezikhala ezingaphansi kuka-160HBS.
Umzila wezobuchwepheshe weinsimbiizingxenye ezifayo yilezi: umshini wokubumba umshini ongenalutho wokuthungatha umshini wokugaya umshini obandayo wokubumba umshini wokugcwalisa umshini wokugcwalisa umshini wokugcwalisa umshini wokugcwalisa umshini wokugcwalisa umshini wokugcwalisa i-carburizing

ukwakheka kwamakhemikhali
C: 0.17% ~ 0.24%
Isilinganiso: 0.17% ~ 0.37%
Mn: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
Cr: 0.25%
Inani: 0.25%
Ku: 0.25
impahla yemishini
Amandla e-Tensile B (MPa) : ≥410(42)
Amandla okukhiqiza S (MPa) : ≥245(25)
Ubude 5 (%) : ≥25
Ukuncishiswa kwamabhithi wendawo (%) : 55 noma ngaphezulu
Ukuqina: akulawulwanga ukushisa,≤156HB
Usayizi wesampula: Usayizi wesampula: 25mm

olunye ulwazi

Ukucaciswa kokwelashwa kokushisa: ukujwayelekile, i-910 ℃, ukupholisa umoya.

Isakhiwo se-Metallographic: ferrite + pearlite.
Ukwelashwa kokushisayensimbi 20 kanye nokucisha ubulukhuni bensimbi no. 20:
Ukwelashwa kokushisa kwensimbi engu-20: Ngensimbi engu-20, kungenzeka ukufeza ubulukhuni obujwayelekile bokucisha obungu-30-35HRC.Ngenxa yokuthi izinga lokushisa liphezulu, ukuwohloka kokucisha kukhudlwana.Buka:
1. Ngemuva komshini onzima, i-workpiece icinywa ngokuphelele ngokuphathwa ukushisa (i-920℃ quenched brine), bese iyacutshungulwa.Ngenxa yobunzima bezidingo ze-30-35HRC, zonke izinqubo kufanele zikwazi ukucutshungulwa, akukho lutho olungaphezu kokulungile ngaphakathi. futhi ngaphandle kwesiyingi semoto, lungisa ukhiye.
2. Ukukhanda okufanayo okuqinile, ukucisha imbobo engaphakathi noma ukhiye wokucisha ithebula kuphela (kuye ngokuthi usayizi wocezu lokusebenza), futhi ekugcineni uyaqeda.
3. Ukungcwaba nokucisha, ukugaya imbobo engaphakathi kanye nokhiye.
Ukugeleza kwenqubo okwesibili, okwesithathu nokuningi.
● Isimo sokulethwa: ukulethwa kusesimweni sokungaphathwa ukushisa noma ukwelashwa kokushisa (i-annealing, normalizing noma izinga lokushisa eliphezulu). Ukulethwa kusesimweni sokwelashwa kokushisa kuzoboniswa kwinkontileka. Uma kungaboniswanga, ukulethwa kuzokwenziwa ngaphandleukwelashwa ukushisa.