Uhlolojikelele lwe-Bearing Steel
Insimbi yokuthwala isetshenziselwa ukwenza amabhola, ama-roller namasongo okuzala. I-Bearing steel inokuqina okuphezulu nokufana okufanayo, ukumelana nokugqoka kanye nomkhawulo ophezulu wokunwebeka. Izidingo zokufana kokwakheka kwamakhemikhali, okuqukethwe kanye nokusatshalaliswa kwe-non-metallic inclusions, kanye nokusatshalaliswa kwama-carbides ensimbi enensimbi kuqinile kakhulu. Ingelinye lamabanga ensimbi aqine kakhulu kukho konke ukukhiqizwa kwensimbi.
Amamaki ensimbi ezinsimbi ezithwalayo ezivamile awuchungechunge lwensimbi olune-carbon chromium ephezulu, njenge-GCr15, Gcr15SiMn, njll. Ngaphezu kwalokho, izinsimbi ezithwala i-carburized, ezifana ne-20CrNi2Mo, 20Cr2Ni4, njll., zingasetshenziswa futhi ngokuvumelana nezimo zokusebenza ezihlukene, ezingenasici. izinsimbi ezinensimbi, njenge-9Cr18, njll., kanye nezinga lokushisa eliphezulu izinsimbi, njenge-Cr4Mo4V, Cr15Mo4V2, njll.
Impahla ebonakalayo
Izakhiwo ezibonakalayo zensimbi enensimbi ikakhulukazi zihlanganisa i-microstructure, isendlalelo se-decarburized, ukufakwa okungeyona insimbi kanye ne-macrostructure. Ngokuvamile, imikhiqizo ilethwa nge-annealing eshisayo egoqayo kanye ne-annealing yomdwebo obandayo. Isimo sokudiliva sizoboniswa kunkontileka. I-macrostructure yensimbi kufanele ingabi nomgodi wokushwabana, ibhamuza elingaphansi kwesikhumba, indawo emhlophe kanye nembotshana encane. I-porosity emaphakathi kanye ne-porosity evamile akufanele idlule ibanga le-1.5, futhi ukuhlukaniswa akufanele kudlule ibanga lesi-2. Isakhiwo esihlanganisiwe sensimbi sizosatshalaliswa ngokulinganayo i-pearlite enohlamvu oluhle. Ukujula kongqimba lwe-decarburization, inclusions engeyona eyensimbi kanye nokungalingani kwe-carbide kuzothobelana namazinga kazwelonke afanelekile.
Izidingo eziyisisekelo zokusebenza zokuthwala izinto zensimbi
1)high contact ukukhathala amandla
2)ubulukhuni obuphezulu ngemva kokwelashwa kokushisa noma ubulukhuni obungakwazi ukuhlangabezana nezidingo zokuthwala ukusebenza kwesevisi
3)ukumelana nokugqoka okuphezulu, i-coefficient ephansi ye-friction
4)umkhawulo wokunwebeka okuphezulu
5)ukuqina komthelela omuhle kanye nokuqina kwe-fracture
6)ukuzinza okuhle kwe-dimensional
7)ukusebenza kahle kokuvimbela ukugqwala
8) Ukusebenza okuhle okubandayo nokushisayo.