Raws li cov tseem ceeb ntawm cov ciav hlau, cov qauv kev tsheb ciav hlau tsis tsuas txiav txim siab lub peev xwm ntawm txoj kab, tab sis kuj cuam tshuam rau kev nyab xeeb thiab kev txhawb nqa ntawm kev qhia kev ua haujlwm. Ntxiv rau cov kev qhia tshwj xeeb, cov qauv kev tsheb nqaj hlau kuj tseem npog ntau qhov ntev xws li cov ntaub ntawv, kev kuaj xyuas thiab kev tshuaj xyuas zoo. Cov hauv qab no yog cov ncauj lus kom ntxaws los ntawm ntau yam:
1. Cov Qauv Khoom Siv
Rail cov ntaub ntawv yog muab faib ua cov roj carbon hlau thiab alloy hlau. Pa roj carbon hlau hlau feem ntau muaj nruab nrab ntawm {{0}}}}}}. Alloy Steel Rails Ntxiv Alloy Hais xws li manganese, thiab vanadium rau cov khoom siv tsis kam, nkees tsis kam, thiab corrosion tsis kam. Piv txwv li, U71MN kev muag khoom siv hauv cov kab kev hnyav-ua haujlwm xws li Daqin Railway hauv kuv lub teb chaws yog muaj zog nrog manganese ntsiab lus thiab tuaj yeem tiv thaiv tus qwj ib qho hnyav ntawm ntau dua 25 tons. Tsis tas li ntawd, kev coj dawb huv ntawm cov ntsia kub siab heev, thiab cov ntsiab lus ntawm cov kev sib tw los tiv thaiv kev sib tw kub thiab ua kom lawv ruaj khov raws li kev ua haujlwm nyuaj.
Ii. Cov Txheej Txheem Tsim Khoom
Dov Txheej Txheem:Cov kev sib tw yog tsim los ntawm kub dov txheej txheem, thiab cov tais diav hlau yuav tsum tau muab dov mus rau hauv cov duab cross ntawm cov duab hla kev kub siab. Kev tswj kom kub nruj npaum li cas thaum lub sij hawm rolling, thiab qhov kawg rolling kub yuav tsum tau tswj hwm thaum muaj kev sib tw sab hauv thiab kev ntxhov siab.
Txheej Txheem Kho Kom Kub:Txhawm rau txhim kho qhov kev ua tau zoo ntawm cov ntsia, online uas nyob hauv cov txheej txheem ua kom sov sov feem ntau siv. Los ntawm sai sai txias saum npoo ntawm cov ntsia hlau, martensic qauv yog tau txhim kho, yog li cov ntsia muaj ob qho tib si hnav kev tiv thaiv tsis kam thiab ua fracture tsis kam thiab ua pob txha tsis kam.
Qhov Tseeb Docensional:Tus ntoo khaub lig-ntu qhov tseeb ntawm cov ntsia hlau ncaj qha cuam tshuam kev ua kom zoo nkauj ntawm txoj kev. Qhov ntev ntev kev pab ntawm cov ciav hlau dav, cov duav duav tuab, thiab lwm yam. 5mm los xyuas kom meej haum ntawm cov ntsia thiab lub log.
III. Cov Qauv Kev Soj Ntsuam Zoo
Cov tsos tshuaj tshuaj xyuas:Yuav tsum tsis muaj qhov tsis xws luag xws li cov kab nrib pleb, nti, thiab lwm yam yuav ua kom muaj kev cuam tshuam txog kev ntxhov siab tshwm sim los ntawm kev sib tsoo saum npoo av, uas yuav ua rau kev tsheb nqaj hlau.
Sab hauv Daim Ntawv Qhia Txog Kev Pom Zoo:Ultrasonic qhov khuam kom nrhiav kom tau thiab eddy qhov nrhiav tau tam sim no tau siv los tshawb xyuas sab hauv ntawm cov kab nrib pleb, pig thiab lwm yam tsis meej. Qhov ua kom pom tseeb yuav tsum muaj kev paub txog kev rhiab yuav tsum muaj peev xwm los tshawb xyuas cov kev tsis xws sab hauv ntau dua 0. 5mm².
Cov Khoom Siv Khoom Siv Cov Khoom Siv Hluav Taws Xob:Los ntawm cov kev ntsuam xyuas tensile, kev ntsuas cuam tshuam thiab lwm cov qauv, lub zog tensile, tawm lub zog, elongation thiab tej yam nyuaj ntawm cov kev sib tw yog kuaj. Lub zog tensile ntawm 75kg / m kev nkhaus feem ntau yuav tsum tau mus txog ntau dua 900mpa kom tau raws li qhov xav tau ntawm cov kev xav tau hnyav thauj khoom.
IV. Kev tu tus kheej thiab hloov qauv hloov
Cov Qauv Hnav:Rail taub hau hnav yog qhov ntsuas tseem ceeb rau kev ntsuas nws lub neej pabcuam. Rau 75kg / m ntsia hlau, ntsug hnav feem ntau tso cai tsis pub dhau 12 hli, thiab sab hnav tsis muaj ntau tshaj 16 hli. Yog tias nws tshaj li tus nqi teev tseg, nws yuav tsum tau kho lossis hloov lub sijhawm los ua kom muaj kev sib tw log zoo thiab txo cov tsheb ciav hlau khiav tsis kam thiab kev co.
Kev txiav txim siab puas tsuaj:Raws li cov degree ntawm kev puas tsuaj rau cov ntsia, nws tau muab faib ua peb theem: kev puas tsuaj rau kev txhim kho, thiab kev puas tsuaj loj. Cov ntsia nrog kev puas tsuaj loj yuav tsum tau hloov tam sim ntawd, thiab kev kho mob lub teeb yuav tsum tau saib xyuas kom haum ntau dua thaum lawv mus txog tus txheej txheem kev puas tsuaj nrog kev txhim kho.
Kev Pab Lub Neej:Raws li kev tu ib txwm muaj, kev pabcuam lub neej ntawm 75kg / m ntsia hlau ntawm cov kab dog dig yog hais txog cov kab dog dig, thiab ntawm hnyav-thauj cov kab yog li {3}} xyoo. Qhov kev pabcuam lub neej tiag tiag yog cuam tshuam ntau heev los ntawm cov khoom xws li ntim cov ntim, qag phaus, thiab qib txij nkawm.
V. Kev loj hlob txij nkawm ntawm cov qauv kev tsheb ciav hlau
Raws li kev tsheb ciav hlau tsim kho ntawm kev kub ceev thiab hnyav thauj khoom, cov qauv kev tsheb nqaj hlau tseem muaj kev txhim kho tas li. In the future, more attention will be paid to the high strength, high toughness and long life of rails, and new alloy steel materials and manufacturing processes will be developed to improve the comprehensive performance of rails. Nyob rau tib lub sijhawm, kev paub ntse tshaj plaws yog siv dav siv los ua kom tiav kev tswj hwm ntawm kev nyab xeeb thiab kev ntseeg siab ntawm kev thauj mus los ntawm cov tsheb nqaj hlau.