Isishwankathelo sokuBearing Steel
Ukuthwala intsimbi kusetyenziselwa ukwenza iibhola, ii-roller kunye namakhonkco okuthwala. Ukuthwala intsimbi kunobunzima obuphezulu kunye nobukhulu obufanayo, ukuxhathisa ukugqoka kunye nomda ophezulu we-elastic. Iimfuno zokufana kokwakheka kweekhemikhali, umxholo kunye nokuhanjiswa kwe-non-metallic inclusions, kunye nokuhanjiswa kwee-carbides zentsimbi ezithwele zingqongqo kakhulu. Ngomnye wemigangatho yentsimbi engqongqo kakhulu kuyo yonke imveliso yentsimbi.
Amabakala ensimbi yeentsimbi eziqhelekileyo ezixhaphakileyo ziphezulu ze-carbon chromium ezithwele uchungechunge lwensimbi, njenge-GCr15, Gcr15SiMn, njl. Ukongeza, iintsimbi ezithwala i-carburized, ezifana ne-20CrNi2Mo, 20Cr2Ni4, njl., zingasetyenziselwa ngokweemeko zokusebenza ezahlukeneyo, ezingenasici. iintsimbi zentsimbi, ezifana ne-9Cr18, njl., kunye nobushushu obuphezulu iintsimbi, ezifana Cr4Mo4V, Cr15Mo4V2, njl.
Izinto eziphathekayo
Iimpawu ezibonakalayo zentsimbi yokuthwala ikakhulu ziquka i-microstructure, i-decarburized layer, inclusion non-metallic kunye ne-macrostructure. Ngokubanzi, iimveliso zihanjiswa nge-annealing eshushu yokuqengqeleka kunye ne-annealing ebandayo yokuzoba. Ubume bokuhanjiswa buya kuboniswa kwikhontrakthi. I-macrostructure yentsimbi kufuneka ingabikho kwi-shrinkage cavity, i-bubble subcutaneous, indawo emhlophe kunye ne-micro pore. I-porosity ephakathi kunye ne-porosity jikelele ayiyi kudlula i-grade 1.5, kwaye ukuhlukana akuyi kudlula i-grade 2. Isakhiwo se-annealed yensimbi siya kuhanjiswa ngokufanayo i-pearlite ecocekileyo. Ubunzulu bomaleko we-decarburization, inclusions non-metallic kunye nokungalingani kwe-carbide kuya kuhambelana nemigangatho yelizwe efanelekileyo.
Iimfuno zokusebenza ezisisiseko zokuthwala izinto zetsimbi
1)ukudinwa okuphezulu koqhagamshelwano
2)ubunzima obuphezulu emva kokunyangwa kobushushu okanye ubulukhuni obunokufikelela kwiimfuno zokuthwala ukusebenza kwenkonzo
3)ukumelana nokunxiba okuphezulu, i-coefficient ephantsi ye-friction
4)umda ophezulu we-elastic
5)Ukuqina kwempembelelo entle kunye nokuqina kokwaphuka
6)uzinzo oluhle lomgangatho
7)ukusebenza kakuhle kokuthintela umhlwa
8) Ukusebenza kakuhle okubandayo kunye nokusebenza okushushu.