Q: Dab tsi yog seamless steel yeeb nkab?
A:Seamless steel yeeb nkab yog cov khoom siv tubular tsim los ntawm cov khoom steel hlau uas tsis muaj welded seam raws nws qhov ntev. Lub billet yog pierced thiab elongated los tsim ib lub plhaub hollow, uas yog tom qab ntawd ua tiav ntxiv kom ua tiav qhov xav tau qhov ntev thiab cov khoom.
Q: Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm cov kav dej seamless tshaj welded kav?
A:Lub ntsiab kom zoo dua yog structural homogeneity thiab lub zog. Qhov tsis muaj vuam seam tshem tawm qhov muaj peev xwm ntawm qhov tsis muaj zog, ua rau cov kav dej seamless txhim khu kev qha rau siab - siab, siab - kub, tseem ceeb, thiab corrosive daim ntaub ntawv (xws li, roj & roj downhole, fais fab nroj tsuag boilers, siab - cov kua nruab nrog cev).
Q: "Schedule" txhais li cas hauv cov yeeb nkab sizing (piv txwv li, SCH 40, SCH 80)?
A:"Schedule" (SCH) yog tus qauv tsim rau phab ntsa tuab rau ib txoj kab uas hla. Cov lej teem sijhawm siab dua qhia cov phab ntsa tuab dua. Piv txwv li, rau tib lub NPS (Nominal Pipe Size), SCH 80 yeeb nkab muaj cov phab ntsa tuab thiab siab dua qhov ntsuas SCH 40 yeeb nkab.
Q: Muab npe rau qib carbon steel rau siab -kev pabcuam kub.
A: ASTM A106 Gr. Byog qib ntau heev rau cov kav dej seamless siv nyob rau hauv siab - qhov kev pabcuam kub, xws li hauv cov chaw tsim hluav taws xob thiab cov chaw tsim khoom.
Q: Tsev neeg qib twg yog qhov tshwj xeeb rau corrosion-cov kev pabcuam tiv thaiv?
A: ASTM A 312 Cov Lus Qhianpog seamless (thiab welded) austenitic stainless hlau kav, xws liTP304/304L, TP316/316L, thiab TP321, siv rau lawv zoo heev corrosion kuj nyob rau hauv tshuaj, petrochemical, thiab zaub mov kev lag luam.
