Cov txheej txheem ntau lawm ntawmAREMA txheem steel railfeem ntau suav nrog cov kauj ruam hauv qab no:
Kev npaj cov khoom siv raw: Npaj cov ntaub ntawv raw rau cov hlau, feem ntau yog cov pa roj carbon zoo steel lossis cov hlau tsis tshua muaj hlau.
Smelting thiab casting: Cov khoom siv raw yog smelted, thiab tom qab ntawd cov hlau molten yog cam khwb cia rau hauv cov hlau ua ntej los ntawm kev nruam nruam los yog nchuav.
Refining thiab dov: Refining lub preliminary steel billet, nrog rau tshem tawm impurities thiab kho cov muaj pes tsawg leeg, thiab ces dov lub steel billet los ntawm dov cov cuab yeej mus rau hauv cov ntaub ntawv uas raws li lub teb chaws tus qauv.
Pretreatment: Pretreatment of track billets, nrog rau forging, kev kho cua sov thiab kev kho deg, thiab lwm yam, los txhim kho lub zog thiab durability ntawm cov ntsia hlau.
Rolling thiab sib sau: Lub pob zeb ua ntej kho tau yog dov thiab tsim los ntawm lub tshuab dov los ua kom nws mus rau hauv txoj kev tsheb ciav hlau uas ua tau raws li lub teb chaws tus qauv.
Kev tshuaj xyuas thiab kev tswj xyuas zoo: Kev tshuaj xyuas nruj thiab kev tswj xyuas zoo yog ua los ntawm cov khoom tsim los xyuas kom meej tias lawv ua tau raws li cov qauv hauv tebchaws thiab cov neeg siv khoom.
Ntim thiab tawm hauv lub Hoobkas: Cov khoom tsim nyog tau ntim thiab cim, thiab tom qab ntawd xa mus rau cov neeg siv khoom lossis khaws cia hauv lub tsev khaws khoom tos rau kev xa khoom.
ASTM tus qauv steel rail muaj cov yam ntxwv hauv qab no:
Siab zog: American txujtxoj hluayog ua los ntawm cov hlau zoo, uas muaj lub zog siab thiab ua haujlwm ntev thiab tuaj yeem tiv taus qhov hnyav thiab kev ua haujlwm ntawm cov tsheb ciav hlau.
Standardization ntawm specifications: Cov specifications thiab qhov ntev ntawm American standard rails yog nruj me ntsis raws li cov qauv, kom ntseeg tau lub uniformity thiab interchangeability ntawm lub railway system.
Muaj zog hnav tsis kam: Qhov saum npoo ntawm Asmeskas tus qauv ntsia tau raug kho tshwj xeeb thiab muaj zog hnav tsis kam, uas tuaj yeem txo qis kev coj ua thiab txuas ntxiv kev pab cuam lub neej.
Zoo corrosion kuj: Qhov saum npoo ntawm American standard rails tau dhau los tiv thaiv corrosion, uas tuaj yeem tiv taus oxidation thiab corrosion thiab tswj kev siv zoo.
Dav dav ntawm daim ntawv thov: American standard rails yog haum rau ntau yam railway kab, xws li high-speed railways, zoo tib yam railways thiab freight railways, thiab lwm yam., thiab muaj zog versatility thiab applicability.
American standard rail:
Specifications: ASCE25, ASCE30, ASCE40, ASCE60, ASCE75, ASCE85,90RA, 115RE, 136RE, 175LBs
Txuj: ASTM A1, AREMA
Khoom siv: 700/900A/1100
Ntev: 6-12m, 12-25m
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Lub sij hawm xa tuaj: Plaub Hlis-28-2024