Cov txheej txheem ntau lawm ntawmArema Txheem Hlau Railfeem ntau suav nrog cov kauj ruam hauv qab no:
Cov Khoom Siv Khoom Siv Raw Ua: Npaj cov ntaub ntawv raw rau cov hlau, feem ntau yog cov hlau zoo carbon ua hlau lossis cov hlau qis.
Smelting thiab casting: cov ntaub ntawv raw yog smelted, thiab tom qab ntawd Molten hlau tau raug pov rau hauv Preliminary Hlau Bilts Los Mus Nruam Casting lossis Pouring.
Refining thiab dov: refining lub preliminary steel billet, suav nrog kev tshem tawm cov hlau billet los ntawm cov khoom siv nyiaj uas tau raws li cov qauv hauv tebchaws.
Pretreatment: Pretreatment ntawm Track Billets, suav nrog kev tso cai, kev kho cua sov thiab kho kom sov thiab cov kev sib tw.
Dov thiab sib sau: cov kev kho ua ntej ua ntej tau dov thiab tsim los ntawm lub tshuab rolling kom ua rau nws mus rau hauv lub teb chaws qauv.
Kev kuaj xyuas thiab kev tshuaj xyuas zoo: kev tswj nruj thiab kev tsim kho nruj yog nqa tawm kom ntseeg tau tias lawv tau raws li cov qauv hauv tebchaws thiab cov neeg siv khoom.
Ntim thiab tawm hauv lub Hoobkas: Cov kev cai tsim nyog tau ntim thiab cim, thiab tom qab ntawd xa mus rau cov neeg siv khoom lossis khaws cia rau hauv lub tsev rau khoom xa tuaj.
ASTM Txheem Hlau Rail muaj cov yam ntxwv hauv qab no:
Siab zog: Neeg Miskastus ncejyog ua los ntawm cov hlau zoo, uas muaj lub zog siab thiab lub zog thiab tuaj yeem tiv thaiv qhov hnyav thiab kev ua haujlwm hnyav ntawm tsheb ciav hlau.
Cov qauv ntawm cov lus qhia tshwj xeeb: Cov kev qhia tshwj xeeb thiab qhov ntev ntawm American txheem ntsia hlau tau nruj me ntsis kev sib tw yog qhov ua rau muaj kev sib txawv ntawm cov railway system.
Cov ris muaj zog tiv thaiv: Qhov chaw ntawm Asmeskas cov hlua hlau tau raug kho tshwj xeeb thiab muaj cov hnav muaj zog tiv thaiv, uas tuaj yeem txo cov kev pabcuam kev pabcuam thiab lub neej pabcuam ntxiv.
Zoo corrosion restance: nto ntawm American cov kev sib tw tau dhau los tiv thaiv corrosion, uas tuaj yeem tiv taus oxidation thiab corrosion thiab tswj kev siv zoo.
Cov dav dav ntawm daim ntawv thov: American txheem ntsia hlau yog qhov haum rau muaj ntau txoj kev tsheb ciav hlau, xws li cov tsheb ciav hlau siab, thiab muaj zog verswility thiab siv tau.
Miskas Asmeskas Kev Rail:
Cov Lus Qhia: ASCE25, ASCE30, ASCE40, ASCE 70RE, ASCE75, ASCE75, ASCE85,90RA, 115RE, 136RS, 175LBS
Txheem: Astm A1, Arema
Cov Khoom Siv: 700 / 900a / 1100
Ntev: 6-12m, 12-25m
Chaws nyob
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Lub Sijhawm Post: Apr-28-2024