Thaum nws los txog rau kev tsim kho thiab kev tsim vaj tsev engineering, kev xaiv cov khoom siv yog qhov tseem ceeb rau kev ua kom muaj kev ncaj ncees thiab lub neej ntev ntawm cov qauv. Ib qho khoom siv uas tau txais lub koob npe nrov hauv kev lag luam yogASTM A252 Qib 2Cov yeeb nkab. Qhov blog no yuav qhia txog qhov tshwj xeeb, cov khoom, thiab cov cim cim ntawm ASTM A252 Qib 2 kom tau txais kev nkag siab zoo ntawm nws qhov tseem ceeb hauv kev tsim kho.
ASTM A252 Qib 2 yog dab tsi?
ASTM A252 yog tus qauv tshwj xeeb rau welded thiab seamless steel tubular pawg rau kev siv hauv paus. Qib 2 yog ib qho ntawm peb qib uas tau teev tseg hauv cov qauv no, nrog Qib 1 yog qhov qis tshaj plaws thiab Qib 3 yog qhov siab tshaj plaws ntawm cov khoom muaj zog. ASTM A252 Qib 2 tubular piles yog tsim los muab qhov sib npaug ntawm lub zog thiab ductility, ua rau lawv haum rau ntau yam kev siv, suav nrog cov hauv paus sib sib zog nqus, cov qauv hauv hiav txwv, thiab lwm yam teeb meem ntawm kev thauj khoom.
Cov khoom tseem ceeb ntawm ASTM A252 Qib 2 suav nrog qhov tsawg kawg nkaus lub zog ntawm 35,000 psi thiab lub zog tensile yam tsawg kawg nkaus ntawm 60,000 psi. Cov khoom no xyuas kom meej tias cov pawg tuaj yeem tiv taus qhov hnyav thiab kev ntxhov siab, ua rau lawv zoo tagnrho rau kev siv nyob rau hauv ib puag ncig nyuaj.
ASTM A252 Qib 2 Yeeb Nkab Piles Marking Requirements
Ib qho tseem ceeb ntawm ASTM A252 Qib 2 pawg yog qhov xav tau rau kev kos npe kom raug. Txhua pawg yuav tsum tau cim kom meej meej kom muab cov ntaub ntawv tseem ceeb ntawm cov khoom. Cov cim no yog qhov tseem ceeb rau kev taug qab, kev ruaj ntseg zoo, thiab ua raws li cov qauv kev lag luam. Cov ntsiab lus hauv qab no yuav tsum suav nrog hauv kev kos npe:
1.Lub npe chaw tsim khoom lossis hom: Qhov no txheeb xyuas cov chaw tsim khoom ntawm pawg, kom tus neeg siv tuaj yeem taug qab cov khoom rov qab mus rau nws qhov chaw.
2.Heat Number: Cov xov tooj cua sov yog tus cim tshwj xeeb uas muab rau ib pawg ntawm cov hlau tshwj xeeb. Nws tso cai rau lub hauv paus chiv keeb thiab cov yam ntxwv ntawm cov khoom yuav raug taug qab, uas yog qhov tseem ceeb rau kev tswj kom zoo.
3.Manufacturer txheej txheem: Qhov no qhia txog txoj kev siv los tsim cov pawg, txawm tias welded los yog seamless. Kev nkag siab txog cov txheej txheem tsim khoom pab txhawm rau ntsuas qhov ua tau zoo ntawm pawg.
4.Spiral Joint Type: Hom kauv sib koom siv nyob rau hauv lubcev pilyuav tsum tau cim, yog muaj. Cov ntaub ntawv no tseem ceeb heev rau kev nkag siab txog kev ncaj ncees ntawm pawg.
5.Outer Diameter: Sab nraud txoj kab uas hla ntawm pawg yuav tsum tau cim kom meej raws li nws yog ib qho tseem ceeb dimension rau installation thiab load xam.
6.Nominal phab ntsa thickness: phab ntsa thickness ntawm pawg yog lwm qhov tseem ceeb ntsuas uas cuam tshuam rau nws lub zog thiab bearing peev xwm.
7.Length thiab hnyav ib qhov ntev: Tag nrho qhov ntev thiab qhov hnyav ntawm ib qhov ntev ntawm pawg yuav tsum tau teev. Cov ntaub ntawv no yog qhov tseem ceeb rau kev thauj mus los thiab kev npaj teeb tsa.
8.Specification Lub Npe thiab Qib: Thaum kawg, cov cim yuav tsum suav nrog cov npe tshwj xeeb (ASTM A252) thiab qib (Qib 2) kom ua tau raws li cov qauv kev lag luam.
Hauv kev xaus
ASTM A252 Qib 2 Pipe Piles yog ib qho tseem ceeb ntawm kev tsim kho niaj hnub, muab lub zog tsim nyog thiab ua haujlwm ntev rau ntau yam kev siv. Kev nkag siab txog cov kev qhia tshwj xeeb thiab kev kos cim yog qhov tseem ceeb rau cov engineers, cov neeg cog lus, thiab cov thawj tswj xyuas qhov project kom ntseeg tau tias lawv siv cov ntaub ntawv raug rau lawv cov haujlwm. Los ntawm kev ua raws li cov qauv no, kev tsim kho kev lag luam tuaj yeem tswj tau cov kev coj ua zoo thiab ua kom muaj kev nyab xeeb thiab siv tau ntev ntawm cov qauv tsim los ntawm cov tswv cuab hauv lub hauv paus.
Post lub sij hawm: Dec-10-2024