Dab tsi yog cov neeg sib tw tseem ceeb lossis cov qauv zoo sib xws rau ASTM A333 Class 6 cryogenic ncaj seam welded yeeb nkab?
Cov neeg sib tw tseem ceeb thiab cov qauv zoo sib xws rauASTM A333 Class 6 cryogenic welded yeeb nkabsuav nrog ASME SA 333 Chav Kawm 6, nrog rau cov qauv thoob ntiaj teb xws li EN 10216-4 P265NL, DIN 17178 FGP Class 28, thiab NFA A 36-2051 A 42 AP Class.
Puas yog ASTM A333 Class 6 cryogenic ncaj seam welded yeeb nkab seamless lossis welded yeeb nkab?
Raws li lo lus "ncaj seam welded yeeb nkab," cov yeeb nkab no belongs rau qeb ntawm welded yeeb nkab, tab sis tus qauv ASTM A333 npog ob leeg seamless thiab welded yeeb nkab.ASTM A333 Qib 6yog hais txog cov khoom siv tshwj xeeb uas tuaj yeem tsim tau raws li seamless lossis welded yeeb nkab, thaum "ncaj seam welded" qhia cov txheej txheem tsim khoom rau cov yeeb nkab tshwj xeeb no.
Dab tsi yog qhov tseem ceeb ntawm kev tiv thaiv corrosion rau ASTM A333 Chav Kawm 6 cryogenic ncaj seam welded yeeb nkab?
Thawj txoj kev tiv thaiv corrosion rauASTM A333 Class 6 cryogenic welded yeeb nkabsuav nrog kev siv ntau yam txheej txheej sab nraud, xws li peb- txheej polyethylene txheej, ob- txheej polyethylene txheej, lossis epoxy txheej, thiab siv cov ntaub hauv ob sab phlu. Tsis tas li ntawd, kev tiv thaiv cathodic kuj tuaj yeem siv rau kev tiv thaiv corrosion.
Dab tsi yog qhov kev xa khoom zoo rau ASTM A333 Chav Kawm 6 cryogenic ncaj seam welded yeeb nkab?
Hom kev xa khoom rauASTM A333 Class 6 cryogenic ncaj seam welded yeeb nkabsuav nrog: qhov kawg lossis beveled xaus, ntau cov phab ntsa tuab (xws li SCH 40 lossis SCH 80), thiab ntev.
Dab tsi yog cov kev cai tshwj xeeb rau vuam ASTM A333 Chav Kawm 6 cryogenic ncaj seam welded yeeb nkab?
VuamASTM A333 Class 6 cryogenic welded yeeb nkabyuav tsum muaj kev ceev faj tshwj xeeb, suav nrog kev siv cov vuam hlau tsim nyog, preheating, post-weld heat treatment (PWHT), thiab ua tau raws li qhov yuav tsum tau ua kom muaj zog.
