1. Q: Dab tsi yog AQUM A333 qib 6?
A:
Nws yog cov pa roj carbon kub tsawg-roj carbon hlau uas tsim rau qhov chaw tsawg-ib puag ncig (qis rau -45 degree).
Nws cov tshuaj lom neeg muaj pes tsawg leeg yog feem ntau cov pa roj carbon thiab manganese, nrog cov silicon me, phosphorus, thiab leej faj. Nws tsis muaj kim heev alloys xws li npib tsib xee thiab chromium, ua rau tus nqi qis dua.
Onerizing cua sov kev kho mob txhim kho qis-qhov kub thiab txwv tsis pub hla brittle lov.
2. Q: Dab tsi yog qhov sib txawv ntawm qib 6 thiab xws li qib 1/3)?
A:
Muaj ntau yam: Qib 6 (-45 degree) muaj kev ua haujlwm siab dua qib 1 (-45 degree) thiab qib kawm), tab sis tsis yog siab li qib 8 (-195 degree).
Kev sib xyaw sib txawv: Qib 6 muaj cov ntsiab lus manganese ntau dua (0.29-1.0%) dua qib 1 (0.40%), tab sis tsawg dua qib 3 (uas muaj npib tsib).
Cov ntawv thov: Qib 6 feem ntau yog siv rau cov tshuab tub yees (xws li tub yees txias), thaum qib 3 yog siv hauv cov pej xeem ntau (LNG).
3. Q: Cov cuab yeej ua dab tsi yog cov neeg kho tshuab ntawm ASTM A333 qib 6?
A:
Lub zog tensile: ntau dua los yog sib npaug rau 415 MPa
Peple lub zog: ntau dua los yog sib npaug rau 240 MPA
Elongation: ntau dua los yog sib npaug rau 30% (50 hli gauge ntev)
Cov Kev Kuaj Feem Ntau: Yuav tsum ntsib Charpy V-Meych cuam tshuam lub zog loj dua los yog sib npaug rau ntawm -45℃(los xyuas kom ntseeg tau tias tsawg-kub kev).
4. Q: Cov chaw thov app yog dab tsi?
A:
Petrochemical: Fryogenic kua tsheb thauj mus los (xws li kua ammonia thiab propane).
Kev Lag Luam Zog: Cryogenic Txias piping hauv cov fais fab nroj tsuag.
Cov Tshuab: Cov Khoom Siv Tawm Thiab Cov Khoom Txias Nkag Logistics Cov Nplai.
Nco tseg: Tsis haum rau ultra-tsawg kub (piv txwv li, hauv qab-100 degree) lossis siab-siab corrosive ib puag ncig.
5. Q: Dab tsi yog cov tseem ceeb uas yuav tsum muaj cov qauv kev tsim khoom thiab tshuaj ntsuam? A:
Cov yeeb nkab tsim khoom: seamless lossis welded steel yeeb nkab. Welded yeeb nkab yuav tsum tau 100% kev tshuaj xyuas (RT).
Kev kho cua sov: normizing yog qhov yuav tsum tau kho cov mov loj.
Cov Khoom Siv Tshuaj Ntsuam Xyuas: Kev ntsuas tshuaj lom neeg tshuaj xyuas, ntsuas kev kuaj, cuam tshuam, hydrostructive kev kuaj, thiab kev sim ua tsis ntev ntawm no).
