1. Q: Dab tsi yog "Laminations" raws li cov yeeb nkab tsis xws luag?
A: Kev tsis zoo lossis kev sib cais nyob rau hauv cov yeeb nkab phab ntsa, feem ntau yog sib npaug rau saum npoo, uas tshwm sim los ntawm cov hlau tsis muaj -cov hlau sib txuas elongated thaum dov. Lawv tuaj yeem kuaj tau los ntawm UT.
2. Q: Dab tsi yog qhov kev pabcuam siab tshaj plaws rau cov pa roj carbon steel yeeb nkab zoo li A106 Gr. B?
A: Kwv yees li 540℃(1000℃F). Tshaj li qhov no, oxidation tsis kam thiab creep zog poob qis, yuav tsum tau qis - alloy steels xws li P11 lossis P22.
3. Q: "PED" Qeb I-IV kev faib tawm txhais li cas rau cov kav dej hauv EU?
A: Nws yog Cov Khoom Siv Hluav Taws Xob Cov Lus Qhia Kev Nyab Xeeb Kev Nyab Xeeb. Cov qeb siab dua (III, IV) rau siab dua / ntim yuav tsum muaj kev ntsuam xyuas nruj dua (piv txwv li, ceeb toom kev koom tes hauv lub cev).
4. Q: Vim li cas ASTM A500 siv rau cov qauv tubing es tsis txhob siv cov yeeb nkab specs?
A: A500 npog txias- tsim welded thiab seamless carbon steel structural tubing nrog tus ntoo khaub lig teev -sectional tolerances thiab lub zog theem optimized rau cov tswv cuab, tsis muaj siab.
5. Q: Dab tsi yog qhov tseem ceeb ntawm "PSL 2" kev xaiv hauv API 5L?
A: Nws txhais tau hais tias "Product Specification Level 2," uas tsim cov kev cai nruj dua li PSL 1, suav nrog kev tswj cov tshuaj lom neeg nruj dua, kev sim siab dua CVN, thiab ntau dua tsis yog - kev kuaj xyuas puas tsuaj.
