Kub-dip galvanized luj tshib yog ib qho ntawm lub luj tshib, uas yog rau phaj saum npoo ntawm lub luj tshib nrog ib txheej zinc los txhim kho corrosion kuj ntawm lub luj tshib. Galvanized luj tshib tau muab faib ua kub-dip galvanized thiab electrogalvanized. Feem ntau, galvanized yeeb nkab fittings yog ua los ntawm kub dip galvanizing. Lub luj tshib yog cov yeeb nkab fittings uas hloov cov kev taw qhia ntawm cov kav dej hauv cov kav dej. Muaj peb hom lub luj tshib uas feem ntau siv hauv cov kav dej siv hluav taws xob engineering: 45 degree, 90 degree, 180 degree, thiab lwm lub luj tshib tsis zoo, xws li 60 degree, raug kho raws li qhov xav tau. Lub luj tshib yog cov yeeb nkab uas feem ntau siv thiab siv dav hauv kev lag luam tshuaj, kev tsim kho, dej, dej, roj av, lub teeb thiab hnyav kev lag luam, tub yees, huv si, kav dej, tiv thaiv hluav taws, hluav taws xob, aerospace, kev tsim kho naval thiab lwm yam haujlwm yooj yim. .
Txoj kev sib txuas ntawm lub luj tshib muaj xws li: ncaj pob tw weld, flange kev twb kev txuas, threaded kev twb kev txuas, thiab qhov (socket) txuas. Cov txheej txheem ntawm lub luj tshib tuaj yeem muab faib ua: vuam lub luj tshib, lub luj tshib swaging, thawb lub luj tshib, lub luj tshib, thiab lwm yam. Lwm lub npe: Txoj Cai Khoov, Hlub Khoov, thiab lwm yam.
(1). Lub luj tshib yog muab faib ua carbon steel, stainless hlau, hlau alloy, tshwj xeeb alloy steel, duplex stainless hlau, thiab lwm yam .; Carbon Steel: (20#, A3, Q235, Q235A, Q235B, 20G, 16Mn, ASTM A234WPB, ASTM A105, thiab lwm yam); Tus Hlau Stainless: (304, 304L, S30408, S30408, {}} cr12ni14, 91con4I4I6, 022cr17ni2ni2 , thiab lwm yam); Alloy steel: (16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22, St45.8/III., A10bB, thiab lwm yam); Cov hlau tshwj xeeb: (TP310S, 904L, Incoloy800, Incoloy825, Incoloy600, Incoloy625, thiab lwm yam); Duplex stainless hlau: (F51, S31803, S2205, F53, 2507, S32750, F55, 2607, S32760, thiab lwm yam).
(2). Raws li kev tsim khoom, nws tuaj yeem muab faib ua kev thawb, nias, forging, casting, thiab lwm yam.
(3). Raws li cov qauv tsim, nws tuaj yeem muab faib ua tus qauv hauv tebchaws, tus qauv hluav taws xob, qauv nkoj, qauv tshuaj, dej qauv, tus qauv Asmeskas, tus qauv German, tus qauv Japanese, tus qauv Lavxias, thiab lwm yam.
(4). Raws li nws lub vojvoog ntawm curvature: nws tuaj yeem muab faib ua lub vojvoog ntev lub luj tshib thiab lub luj tshib luv luv. Lub luj tshib ntev yog hais txog sab nraud ntawm lub raj uas nws lub vojvoog ntawm curvature sib npaug li 1.5 npaug, uas yog, R=1,5D. Lub luj tshib luv luv txhais tau hais tias nws lub vojvoog ntawm curvature yog sib npaug rau sab nraud ntawm lub raj, piv txwv li R=1.0D. (D yog txoj kab uas hla ntawm lub luj tshib, R yog lub vojvoog ntawm curvature).
(5). Yog tias muab faib raws li qib siab: muaj txog kaum xya hom, uas yog tib yam li Asmeskas cov qauv yeeb nkab, suav nrog: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS; Ntawm lawv, feem ntau siv yog STD thiab XS.
(6). Raws li cov duab sib txawv thiab kev siv, nws tuaj yeem muab faib ua: lub luj tshib, lub luj tshib ferrule, lub luj tshib ob npaug, flange luj tshib, txo lub luj tshib, lag ntseg luj tshib, sab hauv thiab sab nraud hniav luj tshib, lub luj tshib, thawb lub luj tshib, qhov (socket), pob tw weld luj tshib, internal hlau luj tshib, thiab lwm yam.
Tuam Tshoj Pipe Fittings Manufacturing Standards:
GB/T12459-2017 steel taub qab welded seamless yeeb nkab fittings
GB / T13401-2017 taub qab welded yeeb nkab fittings ua los ntawm steel phaj
SH/T3408-2012 steel taub qab welded seamless yeeb nkab fittings
SH/T3409-1996 taub qab welded yeeb nkab fittings ua los ntawm steel phaj
SH/T3410-2012 Forged Steel Socket Welded Pipe Fittings
GB/T10752-1995 Marine steel welded yeeb nkab
GB/T12772-1999 Yooj yim interface cam khwb cia hlau kav thiab fittings rau cov kua
American Pipe Fitting Manufacturing Standards:
ASME / ANSI B16.9 Lub Hoobkas Ua Seamless Steel Yeeb Nkab Lub Taub Hau Welded Yeeb Nkab Fittings
ASME / ANSI B16.11 Socket Welded thiab Threaded Yeeb Nkab Fittings
ASME / ANSI B16.28 Steel Butt-Weld Me Radius Luj Tshib thiab Tig Khoov
ASME / ANSI B16.5 Yeeb Nkab Flanges thiab Flange Fittings
MSS SP-43 Forged Stainless Hlau Butt Welded Yeeb Nkab Fittings
MSS SP-83 qhov (socket) vuam thiab ntsia hlau txuas
MSS SP-97 Ib Lub Taub Hau Taub Hau Rau Qhov (socket Weld), Threaded thiab Butt Weld Ends
