Nyob rau hauv xyoo tsis ntev los no, muaj kev ua haujlwm loj hauv cov hlau kev lag luam kev nkag siab ntawm cov roj carbon hlau thiab lawv txoj kev tawm tsam rau kev ntxhov siab corrosion. Qhov kev hloov pauv no tau ua kom pom tseeb lub ntsiab lus txuas ntxiv rau cov yeeb nkab zoo thiab cov qauv ntawm tsim tawm rau ASTM (American Society rau kev sim thiab cov ntaub ntawv) specifications. Carbon cov yeeb nkab tau ntev tau lees paub rau nws txoj kev ua kom tau txais txiaj ntsig, thiab nws txoj haujlwm tseem ceeb tau txais kev pov thawj zoo ntxiv rau nws txoj haujlwm raws li kev lag luam benchmark.
Kev lig kev cai, qee cov carbon hlau alloys tau txiav txim siab tiv thaiv corrosion kev ntxhov siab, ua rau lawv xaiv nrov rau ntau yam kev siv khoom. Txawm li cas los xij, kev tsim tawm tam sim no qhia tias qee cov alloys yuav ua tau tau raug rau hom kev xeb no. Kev tshawb pom tshwm sim kev txhawj xeeb nyob rau hauv kev lag luam thiab qhia qhov tseem ceeb ntawm nruj kev ntsuas nruj me me hauv cov yeeb nkab tsim.
Hauv kev teb rau cov kev txhawj xeeb no,ASTM cov pa roj carbonCov neeg tsim khoom lag luam tau ua cov kauj ruam ua haujlwm ua kom paub meej cov qauv zoo tshaj plaws thiab ua tau zoo. Qhov kev cog lus no rau kev lees paub zoo tshaj plaws hauv kev ua haujlwm thoob ntiaj teb, ua rau cov hlua hlau ua tiav cov qauv kev ua tau zoo. Qhov kev ua tiav no tsis tsuas yog ua rau pom cov txheej txheem steel hlau tsim nyog, tab sis kuj tsim cov yeeb nkab siab tshaj,
Cov ntawv pov thawj zoo hauv ntiaj teb no ntawm MS steel kav yog qhov tseem ceeb rau kev tsim kho steel kav, suav nrog kev tsim kho steel kav, suav nrog kev tsim kho, kev lag luam tsim kho thiab tsim khoom lag luam. Los ntawm kev sib ntsib thiab tshaj cov qauv kev ua tau zoo, ASTM steel yeeb siv muab cov kws ua haujlwm enterers, cov thawj tswj haujlwm nrog lawv cov ntawv thov txhawb nqa los ntawm cov ntaub ntawv ruaj khov thiab ntseeg tau.
Tsis tas li ntawd, kev nrhiav tau ntawm International Cov ntawv pov thawj zoo tau tsa cov xwm txheej ntawm ASTM hlau kav rau kev lag luam cov qauv. Raws li cov cim ua haujlwm, ASTM cov hlau steel tso tus qauv zoo rau lwm cov khoom siv los ua kom zoo, kev txhim kho cov yeeb nkab ntawm cov hlau ua kom zoo thiab ua haujlwm thoob plaws hauv kev lag luam. Qhov no tsis tsuas yog ua rau cov neeg siv khoom kawg kom paub ntseegWelded Hlau KavRau lawv cov phiaj xwm, tab sis kuj txhawb kev ua noj qab haus huv thiab kev tsim kho tshiab hauv kev lag luam steel.
ASTM cov yeeb nkab hlau ua kom tiav cov ntawv pov thawj zoo thoob ntiaj teb yog ib qho kev cog lus zoo dua qub thiab kev ua raws li cov qauv zoo tshaj plaws. Nws tseem ceeb tshaj plaws ntawm kev khaws nrog thev naus laus zis thiab txuas ntxiv kev nkag siab txog cov yeeb nkab cov yeeb nkab tseem tab tom muaj kev cia siab thiab kev cia siab.
Hauv cov ntsiab lus xaus,Hlau Hloov Yeeb'sKev ua tiav ntawm cov ntawv pov thawj zoo thoob ntiaj teb cov ntawv pov thawj tseem ceeb rau kev lag luam steel. Nws tsis tsuas yog daws cov kev cov nyom ntawm kev ntxhov siab nrog kev ntxhov siab corrosion tab sis kuj ua rau cov yeeb nkab steel
Kev lag luam benchmark rau kev ua kom zoo thiab muaj kev ntseeg tau. Raws li xav tau rau deurable thiab siab-ua tau zoo steel quav txuas ntxiv mus, ovm steel yeeb nkab lees paub thiab thawj qhov kev xaiv rau ntau cov ntawv thov
Tiv Tauj Peb Yog Xav Paub Ntxiv
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Lub Sijhawm Post: Jul-24-2024