** 1. Dab tsi yog A252 qib 3 khoom? **
A252 Qib 3 yog qhov tshwj xeeb rau Welded Hlau Yeeb Nkab piles, raws li txhais los ntawm ASTM International txheem (ASTM A252). Cov khoom siv no tau tsim tshwj xeeb kom raug tsav mus rau hauv av los muab txoj kev txhawb nqa tau rau cov vaj tse loj xws li cov vaj tse, txuas hniav, thiab khaws phab ntsa. Qib 3 qhia txog theem ntawm cov tshuab siv tshuab, feem ntau tsawg tshaj lub zog ntawm 45,000 tus kheej ntau dua qib 1 thiab 2 thiab haum rau cov kabmob hnyav nra.
** 2. Dab tsi ua cov yeeb nkab qib txhais tau? **
Cov qauv yeeb nkab cov kab hlau yog cov kev faib tawm siv los siv rau categorize cov kav xaim raws li lawv cov khoom siv tshwj xeeb thiab npaj siv. Cov "qib kawm" feem ntau yog hais txog cov tshuaj lom neeg muaj pes tsawg leeg rau cov hlau thiab nws cov khoom siv tshuab, ua lub zog, thiab tiv thaiv corrosion. Cov kawm qib no txhais tau los ntawm cov koom haum qauv zoo li ASTM (Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv) lossis API (American roj av lub koom haum). Cov qhab nia theem siab dua nyob rau hauv tib tus txheej txheem feem ntau qhia tias muaj zog, ntau ruaj, lossis ntau dua cov yeeb nkab tiv thaiv, tsim rau cov ntawv thov ntau dua.
** 3. Cov yeeb nkab qib twg yog qhov zoo tshaj? **
Tsis muaj ib qho "zoo tshaj plaws" qib yeeb nkab; Cov kev xaiv zoo ntawm kev xaiv nyob ntawm daim ntawv thov. Qib zoo tshaj plaws yog ib qho uas ua tau raws li qhov xav tau tshwj xeeb, kev kub siab, kev siv zog, thiab tus nqi rau ib qho phiaj xwm. Piv txwv li:
* ** High {- siab roj thiab roj kis tau thiab roj kis: ** API 5 lossis qib siab yog qhov zoo tshaj.
* ** Cov qib A252 qib 3 yog ib qho kev xaiv sib xws thiab muaj zog.
* ** High - kub thiab corrosive ib puag ncig hauv cov fais fab nroj tsuag: ** 3T1 lossis cov qib zoo sib xws yog qhov zoo dua.
* ** Cov kav dej kav dej thiab qis {{- qhov yooj yim} Cov Khoom Siv Yooj Yim: ** Ib qho yooj yim A53 Qib B Yeeb yuav zoo kawg nkaus tsim nyog thiab raug nqi.
** 4. Dab tsi yog qeb 6 yeeb nkab? **
"Qib 6" yog tsawg dua li lub sij hawm standalone thiab nws lub ntsiab lus nyob ntawm tus qauv tshwj xeeb nws hais txog. Txawm li cas los xij, nws yog feem ntau cuam tshuam nrog ** ANTM A53 qib b **. Qhov no yog vim tias cov tshuaj uas yuav tsum tau rau phosphorus rau phosphorus (p) Qib B yog qhov ntau tshaj plaws ntawm 0.06% (lossis 6 puas tsis raug xa mus rau qhov txawv ntawm lwm cov qib. Nws yog qhov tseem ceeb kom paub meej tias cov txheej txheem tag nrho (piv txwv li, Astm A53) thaum cov lus no siv.
** 5. Peb chav ntawm cov kav dej yog dab tsi? **
Cov kav dej tuaj yeem raug cais ntau txoj hauv kev, tab sis ib qho kev sib koom ua ke thiab muaj peev xwm ua li cas tsim tawm ** yog:
* ** SEAMLESS YEEB (SMLS): ** Ua los ntawm tho ib lub ntsej muag ntawm cov hlau los ua lub raj uas tsis muaj nqaws lossis Welds. Nws yog feem ntau muaj zog thiab siv rau high-} qhov kev siv siab.
* ** WELDED YEEB: ** Tsim cov ntaub hlau uas siv hlau los yog coil rau hauv lub tog raj kheej thiab tom qab ntawd vuam tus leeg ntev. Nws yog tus nqi -}}} siv tau rau cov ntawv thov siab dua, kav dej, thiab lub hom phiaj.
* ** ERW (hluav taws xob tiv thaiv welded) yeeb nkab: ** Hom welded thiab hom ntawm welded yeeb nkab uas cov leeg yog forged ua ke los ntawm hluav taws xob tam sim no. Nws yog ib subset ntawm welded yeeb nkab tab sis feem ntau tau hais cais vim nws txoj kev vam meej.
