ASTM A53 Pipe Standard: Daim Ntawv Qhia Kev Siv ASTM A53 steel kav yog ib qho ntawm cov qauv siv dav tshaj plaws rau cov kav hlau hauv ntiaj teb hauv kev siv cov kav dej thiab kev tsim kho. Muaj peb hom: LSAW, SSAW, thiab ERW, tab sis lawv cov txheej txheem tsim khoom sib txawv thiab daim ntawv thov kuj txawv.
1. Astm A53 LSAW steel yeeb nkab(Longitudinal Submerged arc vuam)
LSAW Yeeb Nkab yog tsim los ntawm dabtsi yog khoov cov hlau phaj lengthwise ces welded thiab welded seam nyob rau hauv thiab sab nraum cov yeeb nkab! LSAW cov kav dej, muaj cov hlau zoo, yog qhov zoo tagnrho rau kev siv roj thiab roj siab. Lub zog muaj zog welds thiab cov phab ntsa tuab ua rau cov kav dej no tsim nyog rau cov kav dej kub siab thiab cov pa roj, kev siv dej hiav txwv.
2. Astm A53SSAWCov yeeb nkab steel(Spiral Submerged Arc Welded)
Spiral Submerged Arc Welded (SSAW) Yeeb Nkab yog tsim los ntawm kev siv cov kauv submerged arc vuam txoj kev. Lawv cov welds muab kauv ua kom muaj kev lag luam thiab ua rau lawv zoo tagnrho rau nruab nrab-rau-siab-siab dej mains lossis rau kev siv cov qauv.
3.Astm A53ERWCov yeeb nkab steel(Electric Resistance Welded)
ERW cov kav dej yog tsim los ntawm kev siv hluav taws xob tsis zoo, yog li lub vojvoog me me ntawm curvature yuav tsum tau khoov hauv kev npaj vuam uas tso cai rau kev tsim cov kav dej me me nrog cov welds meej, cov nqi tsim khoom rau cov kav dej no kuj tsawg. Lawv feem ntau yog siv rau hauv kev tsim kho rau lub tsev thav duab, mechanical tubing, thiab kev xa cov kua dej ntawm qhov tsis tshua muaj siab.
Cov hauv qab no yog qhov sib txawv tseem ceeb:
Vuam txheej txheem: LSAW / SSAW txheej txheem koom nrog submerged arc vuam, ERW yog cov txheej txheem hluav taws xob tiv thaiv vuam.
Txoj kab uas hla & phab ntsa Thickness: LSAW cov kav dej muaj qhov loj dua nrog cov phab ntsa tuab dua li piv rau SSAW thiab ERW kav dej.
Siab tuav: LSAW > ERW/SSAW.
