Thaum nws los txog rau kev tsim kho thiab kev siv cov qauv, kev xaiv cov khoom siv yog qhov tseem ceeb heev kom ntseeg tau tias muaj kev nyab xeeb, ruaj khov, thiab ua tau zoo. Ib qho khoom siv uas tau hwm heev hauv kev lag luam yog ASTM A252 Qib 3 hlau. Cov lus qhia no yog qhov tseem ceeb rau kev tsim cov yeeb nkab siv rau hauv cov hauv paus tob, ua rau lawv yog ib qho tseem ceeb hauv ntau yam haujlwm tsim kho.
ASTM A252 yog tus qauv txheem tsim los ntawm American Society for Testing and Materials (ASTM) uas piav qhia txog cov kev cai rau kev vuam thiab seamless.yeeb nkab hlaucov pawg. Qib 3 yog qib muaj zog tshaj plaws hauv qhov kev qhia no, nrog rau qhov muaj zog tsawg kawg nkaus ntawm 50,000 psi (345 MPa). Qhov no ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau lub peev xwm thauj khoom siab thiab tiv taus kev hloov pauv.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm ASTM A252 Qib 3 yog nws qhov kev vuam zoo heev, uas tso cai rau kev tsim khoom thiab kev teeb tsa zoo. Cov tshuaj lom neeg sib xyaw ntawm cov hlau no suav nrog cov ntsiab lus xws li carbon, manganese, thiab silicon, uas ua rau nws lub zog thiab kev tawv. Tsis tas li ntawd, cov khoom siv tuaj yeem tiv taus cov xwm txheej ib puag ncig hnyav, ua rau nws tsim nyog siv rau hauv dej hiav txwv thiab lwm qhov chaw nyuaj.
Qhov tseeb, ASTM A252 Qib 3 feem ntau siv rau hauv kev tsim cov choj, cov tsev, thiab lwm yam haujlwm tsim kho uas xav tau lub hauv paus tob. Nws lub peev xwm los txhawb cov khoom hnyav thaum tswj kev ruaj khov ntawm cov qauv yog qhov tseem ceeb rau lub neej ntev thiab kev nyab xeeb ntawm cov qauv no.
Hauv kev xaus,ASTM A252 Qib 3Hlau yog ib yam khoom tseem ceeb rau kev lag luam kev tsim kho, muab lub zog thiab kev ruaj khov uas xav tau rau kev siv lub hauv paus tob. Kev nkag siab txog nws cov yam ntxwv thiab cov txiaj ntsig tuaj yeem pab cov engineers thiab cov neeg cog lus txiav txim siab zoo thaum xaiv cov khoom siv rau lawv cov haujlwm, thaum kawg ua rau muaj kev nyab xeeb dua thiab txhim khu kev qha dua.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-23-2024