Ukuthwala iimfuno zokusebenza kwentsimbi, izinto eziqhelekileyo zokuthwala intsimbi

Ukuthwala intsimbi kusetyenziswa ikakhulu ukwenza izinto eziqengqelekayo kunye namakhonkco eebheringi eziqengqelekayo.Ngenxa yokuba ukuthwala kufuneka kube nobomi obude, ukuchaneka okuphezulu, ukuveliswa kobushushu obuphantsi, isantya esiphezulu, ukuqina okuphezulu, ingxolo ephantsi, ukuxhatshazwa okuphezulu, njl. Amandla, ukuqina okuyimfuneko, ukuqina okuthile, ukuxhathisa ukubola kwizithambiso ezisemoyeni.Ukuze kuhlangatyezwane neemfuno zokusebenza ezingentla, iimfuno zokufana kweekhemikhali zentsimbi yokuthwala, umxholo kunye nohlobo lwe-non-metallic inclusions, ubungakanani kunye nokusabalalisa kwe-carbides, kunye ne-decarburization zingqongqo.Ukuthwala intsimbi ngokuqhelekileyo kuphuhliswa kumgangatho ophezulu, ukusebenza okuphezulu kunye neentlobo ezininzi.Intsimbi yokuthwala ihlukaniswe ibe yintsimbi ephezulu ye-carbon chromium, intsimbi ephethe i-carburizing, isinyithi esineqondo lokushisa eliphezulu, insimbi engenasici kunye nezixhobo ezikhethekileyo zokuthwala ngokweempawu kunye nokusingqongileyo kwesicelo.Ukuze kuhlangatyezwane neemfuno zokushisa okuphezulu, isantya esiphezulu, umthwalo ophezulu, ukuxhathisa ukubola kunye nokumelana nemitha, uchungechunge lweentsimbi ezintsha zokuthwala ezineempawu ezizodwa kufuneka ziphuhliswe.Ukuze kuncitshiswe umthamo we-oksijini wentsimbi yokuthwala, itekhnoloji yokunyibilikisa yokuthwala intsimbi efana ne-vacuum smelting, i-electroslag remelting, kunye ne-electron beam remelting ziye zaphuhliswa.Ukunyibilikiswa komthamo omkhulu wentsimbi ethweleyo kuye kwaphuhliswa ukusuka ekunyibilikiseni kombane we-arc ukuya kwiindidi ezahlukeneyo zeziko lokunyibilikisa eliphambili kunye nokusulungekiswa kwesithando somlilo sangaphandle.Okwangoku, ukuthwala isinyithi esinomthamo ongaphezu kweetoni ezingama-60 + LF / VD okanye i-RH + ukuphosa ngokuqhubekayo + iinkqubo eziqhubekayo zokuqengqeleka zisetyenziselwa ukuvelisa intsimbi yokuthwala ukuze kufezekiswe injongo yomgangatho ophezulu, ukusebenza kakuhle okuphezulu kunye nokusetyenziswa kwamandla aphantsi.Ngokwenkqubo yokunyanga ubushushu, isithando somlilo esingaphantsi kwemoto kunye nesithando somlilo siye saphuhliswa saba yindawo eqhubekayo elawulwayo ye-atmospheric annealing furnace ukwenzela unyango lobushushu.Okwangoku, uhlobo lwesithando somlilo oluqhubekayo lunobude obude be-150m, kunye nesakhiwo se-nodular sentsimbi yokuthwala izinzile kwaye ifanayo, i-decarburization layer incinci, kwaye ukusetyenziswa kwamandla kuphantsi.

Ukuthwala intsimbi kufuneka ibe nezi zinto zilandelayo:

1. Amandla okudinwa koqhagamshelwano oluphezulu.
2. Ukuxhatshazwa okuphezulu kwe-abrasion.
3. Umda ophezulu we-elastic kunye namandla okuvelisa.
4. Ubunzima obuphezulu kunye obufanayo.
5, ukuqina kwempembelelo ethile.
6. Uzinzo oluhle lwe-dimensional.
I-7, ukusebenza kakuhle kwe-corrosion inhibition.
8. Ukusebenza kakuhle kwenkqubo.

Ukuthwala izinto eziqhelekileyo zentsimbi:

Ukukhethwa kwezinto ezithwala intsimbi kufuna kwakhona ukuthenga okuthe ngqo.Ukuthwala izinto ezisebenza phantsi kweemeko ezikhethekileyo, ngokweemfuno zabo ezithile, kufuneka kwakhona zibe neempawu ezikhethekileyo ezihambelana neemeko zabo, ezinje: ukumelana nobushushu obuphezulu, ukumelana nobushushu obuphantsi, ukumelana nokugqwala, Anti-radiation, anti-magnetic and ezinye iimpawu.

Intsimbi enentsimbi eqinileyo igcwele intsimbi yekhromium ephezulu, efana neGCr15, enomxholo wekhabhoni omalunga ne-1% kunye nomxholo wechromium omalunga ne-1.5%.Ukuze kuphuculwe ukuqina, ukuxhatshazwa kokugqoka kunye nokuqina, ezinye i-silicon, i-manganese, i-molybdenum, njl., njenge-GCr15SiMn, zongezwa ngokufanelekileyo.Olu hlobo lwentsimbi yokuthwala lunemveliso enkulu, ibalwa ngaphezu kwe-95% yazo zonke imveliso yentsimbi.

Intsimbi ye-Carburizing ethwele i-chromium, i-nickel, i-molybdenum alloy structural iron kunye nomxholo wekhabhoni we-0.08 ukuya kwi-0.23%.Umphezulu wecandelo elithwele i-carbonitrided ukuphucula ubunzima bayo kunye nokuxhatshazwa kokugqoka.Le ntsimbi isetyenziselwa ukuvelisa iibheringi ezinkulu ezithwala imithwalo eyomeleleyo, efana neebheringi ezinkulu zokusila, iibheringi zeemoto, iibheringi zoomatshini bemigodi, kunye neebheringi zemoto kaloliwe.

Iintsimbi ezithwala i-stainless zibandakanya iintsimbi ze-carbon chromium eziphezulu ezingenasici, ezifana ne-9Cr18, 9Cr18MoV, kunye ne-carbon chromium ephakathi kweentsimbi zentsimbi, ezifana ne-4Cr13, njl., ezisetyenziselwa ukwenza iibheringi ezingenasici kunye ne-corrosion-resistant.

Ubushushu obuphezulu bentsimbi busetyenziswa kubushushu obuphezulu (300 ~ 500 ℃).Kuyimfuneko ukuba intsimbi ibe nobunzima obuthile obubomvu kwaye inxibe ukumelana nobushushu bokusebenzisa.Uninzi lwazo lusebenzisa izixhobo zensimbi ezikhawulezayo, ezifana neW18Cr4V, W9Cr4V, W6Mo5Cr4V2, Cr14Mo4 kunye neCr4Mo4V.


Ixesha lokuposa: Jul-21-2021