1. Q: Phab ntsa thickness teev thiab tswj tau li cas?
A:Phab ntsa tuab yog teev los ntawm tus neeg yuav khoom, thiab cov yeeb nkab yog tsim los ua kom tau raws li qhov teev tsawg kawg nkaus phab ntsa thickness. Tus qauv tso cai rau me ntsis "nyob rau hauv-} kam rau ua," txhais tau tias cov phab ntsa tuaj yeem nyias nyias dua li nominal hauv qee qhov chaw, tab sis nws yuav tsum tsis txhob poob qis dua qhov tsawg kawg nkaus.
2. Q: Puas yog ASTM A252 xav tau cov yeeb nkab los yog pleev xim?
A:No. ASTM A252 yeeb nkab feem ntau yog muab liab qab (uncoated). Cov tshuaj tiv thaiv zeb cov kua roj vanish lossis primer qee zaum siv tsuas yog los tiv thaiv cov xeb xeb thaum lub sijhawm khaws thiab thauj thiab tsis muaj sijhawm ntev - tiv thaiv corrosion. Rau kev tiv thaiv corrosion mus tas li, kev ntsuas ntxiv xws li txheej txheej lossis kev tiv thaiv cathodic yog xav tau.
3. Q: Qhov txawv ntawm ASTM A252 thiab API 5L yeeb nkab yog dab tsi?
A:Thaum ob leeg yog cov kav hlau, lawv tau tsim los rau ntau lub hom phiaj:
ASTM A252, ASTM A252yog raustructural foundation piling. Lub hom phiaj yog nyob rau lub zog thiab ductility rau kev tiv thaiv kev tsav tsheb thiab cov khoom thauj khoom.
API 5Lyog rauthauj roj thiab roj (kab yeeb nkab). Lub hom phiaj yog nyob rau hauv uas muaj lub siab sab hauv, nrog rau kev nruj me ntsis ntawm chemistry rau weldability thiab nyob rau hauv tej rooj plaub, toughness rau qis - kub kev pab cuam.
4. Q: Puas yog qhov kawg ntawm ASTM A252 yeeb nkab beveled?
A:Yog lawm. Beveled xaus yog qhov ntau heev thiab feem ntau yuav tsum tau siv rau kev sib tsoo cov yeeb nkab ib leeg ua ke los tsim ib pawg txuas ntxiv. Lub kaum sab xis yog feem ntau teev los ntawm tus neeg yuav khoom kom phim cov txheej txheem vuam.
5. Q: Cov ntaub ntawv dab tsi yuav tsum suav nrog thaum xaj ASTM A252 yeeb nkab?
A:Ib daim ntawv xaj tiav yuav tsum qhia meej:
* Tus Qauv Zauv: ASTM A252
* Qib (1, 2, lossis 3)
* Sab nraud txoj kab uas hla thiab Nominal Phab ntsa Thickness
* Ntev (ib zaug random, ob chav random, lossis qhov ntev tshwj xeeb)
* Hom (Seamless lossis Welded)
* Xaus tiav (piv txwv li, square txiav, beveled)
* Ib qho kev xeem ntxiv lossis ntawv pov thawj uas yuav tsum tau ua (xws li Certified Mill Test Report).
