Indlela yokutshisa kunye nokutshisa i-camshafts?

1. Ukucima ngokuthe ngqo emva kokungcwatywa kwe-carburizing kunenzuzo yokusebenza kakuhle kwemveliso, ixabiso eliphantsi, kunye ne-oxidative decarburization. Nangona kunjalo, ngenxa yobushushu obuphezulu be-carburizing, iinkozo ze-austenite ziyakhula, i-martensite irhabaxa emva kokucinywa, kwaye i-austenite egciniweyo Kukho imizimba emininzi, ke ukuxhathisa ukunxiba kunye nokuqina akulunganga. Ifaneleka kuphela kwintsimbi ecolekileyo ye-intrinsically fine-grained kunye neenxalenye ezineemfuno eziphantsi zokumelana nokunxiba okanye iindawo ezithwele umthwalo ophantsi

2. Ukucima okwexesha elinye kusemva kokuba i-carburizing ipholile ngokucothayo, ize iphinde ifudunyezwe kwiqondo lobushushu elingaphezu kobushushu obubalulekileyo ize icinywe. Xa kuthelekiswa nokucima ngokuthe ngqo, ukucinywa kwexesha elilodwa kunokuphucula isakhiwo sentsimbi ukuya kwinqanaba elithile. Xa iimfuno zesakhiwo esingundoqo ziphezulu, ubushushu bokufudumala bokucima buphezulu kancinci kune-Ac3. Kumalungu angalayishwanga kakhulu kodwa anokumelana nokunxiba okuphezulu kunye neemfuno zokuqina okuphezulu kumphezulu. Ubushushu bokucima kufuneka bube yi-30℃～50℃ ngaphezulu kwe-Ac1, ukuze iinkozo zomaleko womphezulu zicocwe, kodwa ulwakhiwo olungundoqo aluyi kuphuculwa kakhulu, kwaye ukusebenza kuya kuba kubi kancinci.

3. Ukucima okwesibini Kwintsimbi eneempawu eziphezulu zoomatshini okanye ngokuyisiseko sentsimbi ecolekileyo, ukucinywa kwesibini kufuneka kusetyenziswe. Injongo yokucinywa kokuqala kukuphucula ubume obungundoqo, kwaye ubushushu bokufudumala bungama-30℃～50℃ ngaphezulu kwe-Ac3. Injongo yokucinywa kwesibini kukucokisa ulwakhiwo lomaleko womphezulu ukuze ufumane i-martensite ecolekileyo kunye nesamente yesibini esabiwe ngokulinganayo. Ubushushu bobushushu yi 30℃～50℃ ngaphezulu kwe Ac1.

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