Feem ntau siv rail cov ntaub ntawv U75V U71MN 50mn

Nyob rau hauv cov kab ke loj loj ntawm kev tsheb nqaj hlau, kev xaiv ntawm cov khoom ciav hlau zoo li lub luag haujlwm hauv kev ua haujlwm hauv kev ua haujlwm nyab xeeb, kev pabcuam lub neej thiab kev tswj hwm tus nqi ntawm txoj kev tsheb nqaj hlau. U75V, U71MN thiab 50MN yog cov khoom siv feem ntau siv nyob rau hauv thaj chaw ntawm cov nqaj hlau. Txhua ntawm lawv ua lub luag haujlwm tseem ceeb hauv kev sib txawv ntawm cov kev tsheb ciav hlau nrog nws cov txiaj ntsig tshwj xeeb.
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1. Tshuaj lom neeg sib xyaw

U75V​

U75V yog cov pa roj carbon hlau high-caradium alloy. Nws cov ntsiab lus carbon yog nyob rau hauv thaj tsam ntawm {2}}. 71% {4}}. 8%, thiab cov pa roj carbon ntau lays lub hauv paus rau nws lub zog. Qhov sib ntxiv ntawm Vanadium (V) yog qhov tseem ceeb. Vanadium tuaj yeem tsim cov khoom nplua thiab dispersed carbides hauv cov hlau, ua kom cov nplej zom zaws, thiab txhim kho ntawm cov ntsia hlau tsis kam. Tsis tas li ntawd, nws tseem muaj cov silicon (si), manganese (mn) thiab lwm cov ntsiab lus los ua haujlwm synergistically. Silicon tuaj yeem txhim kho lub zog thiab hardness ntawm cov hlau, thiab manganese tuaj yeem txhim kho cov khoom siv kub kub ntawm cov hlau thiab txhim kho lub zog thiab tawv.

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U71mn

U71MN tseem yog cov hlau roj carbon ntau nrog cov ntsiab lus carbon nrog {}}. {}}. {}}. 2%. Manganese ua lub luag haujlwm tseem ceeb hauv nws. Nws tsis tsuas yog ua rau cov ntsiab lus pearlite, yog li kev txhim kho lub zog thiab hardness ntawm cov hlau. Nyob rau tib lub sijhawm, ib qho tsim nyog ntawm manganese yuav pab txhawm rau txhim kho cov hlau tawv thiab txo cov nyiam kom tawg thaum kub ua haujlwm. Piv nrog U75V, U71MN tsis yog txhob txwm ua tshwj xeeb aloying cov ntsiab xws li vanadium, thiab nws muaj pes tsawg leeg kuj yooj yim. ​

50mn

5 {0 mn} mn yog ib tug qauv zoo carbon qauv hlau, thiab tus qauv siv tau yog GB \/ T {2}}. Nws cov ntsiab lus carbon yog txog 0. 5% thiab nws cov ntsiab lus manganese yog 0.}}}}}. {}}}.}}%. Piv nrog U75V thiab U71MN, 50MN muaj tsawg dua cov ntsiab lus thiab tsuas yog tso rau cov pa roj carbon thiab manganese txhawm rau txhim kho kev ua haujlwm. Qhov kev sib ntxiv ntawm manganese txhim kho qhov nyuaj ntawm cov hlau, tso cai 50mn kom tau txais lub zog siab dua, tawv thiab elasticity tom qab kev kho cua sov.
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2. Kev ua txuj ci

Lub zog thiab hardness

U75V muaj lub zog tensile ntau dua 980MPA thiab lub hardness ntawm HRC30 thiab 38 ua tsaug rau kev siv zog muaj zog ntawm Vanadium. Ntawm hnyav-thauj kev tsheb nqaj hlau thiab qee kab nrog cov kev xav tau siab heev rau cov kev sib txhuam tsis kam, nws tuaj yeem tiv thaiv cov tsheb ciav hlau loj thiab ntau zaus cov tsheb ciav hlau hnyav. Lub zog tensile ntawm U71MN feem ntau yog tshaj 880MPA, thiab nws lub hardness, thiab nws cov hardness yog me ntsis qis rau U75V. Ntawm dog dig railay kab, cheeb tsam railways, thiab kev lag luam sab hauv, nws lub zog thiab kev ua haujlwm ruaj khov rau kev ua haujlwm txhua hnub. 50mn muaj lub zog siab, elasticity thiab hardness, thiab feem ntau siv tom qab quenching thiab tempering. Nws lub zog thiab hardness tuaj yeem ua tau raws li qhov kev xav tau ntawm qee qhov kev tsheb nqaj hlau nrog cov kev coj ua kom zoo rau cov hnav tsis kam.

Kev muaj zog

Lub zog ntawm cov nqaj hlau cuam tshuam nrog lawv lub peev xwm los tawm tsam brittle fracture, uas yog qhov tseem ceeb nyob rau hauv kev cuam tshuam troated los ntawm kev ua haujlwm tsheb ciav hlau. U71mn muaj cov khoom zoo vim kev txhim kho ntawm manganese ntawm kev tawv. Nws tuaj yeem nqus tej lub zog rau qee yam thiab zam dhau ntawm txoj kev tsheb ciav hlau vim kev cuam tshuam rau kev cuam tshuam. U75V muaj cov khoom muaj zog zoo los ntawm kev tsim nyog tsim qauv thiab cov txheej txheem tsim kev tsim khoom thaum ua kom muaj zog thiab hardness. Txawm li cas los xij, piv nrog U71MN, nws txoj kev ua tau zoo yog me ntsis qis dua nyob rau hauv tib qho kev cuam tshuam. 50MNE muaj qee yam nyuaj, tab sis vim nws cov ntsiab lus carbon ntau, nws yuav tsis ua raws li U71mn hauv qee qhov xwm txheej nrog kev ua kom hnyav heev. ​

Hnav Tsis kam

Hnav Kuj cuam tshuam ncaj qha cuam tshuam rau lub neej pabcuam ntawm kev ntsia. U75V Zoo heev txhim kho nws cov hnav tsis kam vim yog kho kom zoo nkauj thiab tsim ntawm cov carbides tshwj xeeb los ntawm vanadium. Nyob rau hauv cov xwm txheej ntawm high-zaus kev sib txhuam ntawm cov log thiab ntsia hlau, uas tau zoo ntev dua qhov hloov kho thiab txo tus nqi kho. Nws yog qhov tshwj xeeb tshaj yog rau kab nrog cov ntim tsheb loj thiab qhov hnyav nyhav. U71mn kuj muaj cov coj zoo heev. Los ntawm manganese qe tsim dag zog, nws tuaj yeem kho tau zoo nrog kev ua haujlwm ntawm cov tsheb ciav hlau thiab ua kom muaj kev pabcuam ntev ruaj khov ntawm txoj kev taug. 50mn kuj tseem tuaj yeem hnav tau zoo dua tom qab kev kho cua sov kom zoo, thiab tuaj yeem siv rau kev tsim cov chaw tsheb ciav hlau nrog qee yam uas yuav tsum muaj rau cov kev coj ua. ​

3. Daim Ntawv Thov Kev Sau Npe

U75V​

Hnyav-Railway:Nyob rau hauv thee, ore thiab lwm yam hnyav-ua haujlwm txuas mus los mus thauj mus los yog super ntev thiab lub nra hnyav heev, thiab qag phaus feem ntau yog 30 tons lossis siab dua. Nrog nws cov kabmob kiv xeeb super thiab cov kev sib tw zoo tshaj plaws thiab hnav cov kev xaiv hnyav dua tom qab xyoo, thiab yog qhov kev xaiv hnyav tshaj plaws kom ntseeg tau tias yuav muaj kev thauj mus los zoo thiab muaj kev nyab xeeb.

Tshwj Xeeb Cov Kab:Kev caij tsheb ciav hlau Zoo li cov mines loj qhib cov tsheb thauj khoom thiab cov khoom hnyav hnyav, thiab cov kev xav tau rau taug qab yog yuav luag hnyav. U75V rail yog mus txog rau kev sib tw thiab xyuas kom meej thiab kev thauj khoom tau zoo. ​

U71mn

Discrary rail cov kab:Hauv ntau cov tsheb ciav hlau dog dig thoob plaws lub tebchaws, xws li qee tus neeg caij tsheb thiab cov kab thauj khoom, tsheb ciav hlau khiav ntawm kev thauj khoom nrawm thiab muaj qee yam ntim ntawm kev thauj. Cov kev ua tau zoo ntawm U71MN Rails tuaj yeem hloov kho tau zoo rau cov kev ua haujlwm zoo li no thiab muab kev txhawb nqa kev ntseeg siab rau kev tsheb ciav hlau. ​

Cov tsheb ciav hlau hauv cheeb tsam thiab cov kev tsheb ciav hlau nyob hauv kev lag luam thiab kev lag luam tsuas:Hauv kev tsheb ciav hlau hauv cheeb tsam thiab qee qhov loj me thiab kev lag luam me me, lub siab thiab kev cuam tshuam ntawm cov tsheb thauj khoom ntawm cov ciav hlau yog qhov me me. U71MN kev muag khoom tau siv dav siv vim tias lawv cov nqi zoo-ua tau zoo, uas tsis tuaj yeem sib ntsib kev thauj mus los tab sis kuj tseem tswj tau cov nqi kev tsim kho thiab tu tau. ​

50mn

RAILWAY YAM RAUG:50MN feem ntau siv los tsim qee qhov chaw tsheb ciav hlau nrog cov kev hnav siab tiv thaiv, xws li sparles, iav, thiab lwm yam. Cov ntu no yog raug rau kev ntxhov siab ntau thiab kev sib txhuam thaum lub sijhawm railway, thiab kev ua haujlwm ntawm 50mn tuaj yeem ua tau raws li lawv cov kev xav tau ua haujlwm.