Super Duplex UNS S32750 (F53 / 1.4410) 45℃luv vojvoog khoovfeem ntau tau teev tseg rau lawv qhov tshwj xeeb ntawm kev sib xyaw ua ke ntawm lub zog thiab kev tiv thaiv corrosion nyob rau hauv siab -siab, corrosive piping systems xws li offshore platforms, subsea manifolds, thiab tshuaj ua cov nroj tsuag.
Cov khoov no yog tsim thiab ua raws li nruj raws li ASME B16.49-"Lub Hoobkas-Made, Wrought Steel, Buttwelding Induction Khoov rau kev thauj mus los thiab kev faib khoom."
Hauv qab no yog cov ncauj lus kom ntxaws, kev piav qhia ntawm F53 45℃luv luv radius induction khoov tus qauv qhov ntev, kam rau ua, thiab kev txiav txim siab.
Radius Definition for Short Radius Khoov
45℃luv vojvoog khoov yog cov yeeb nkab haum uas hloov cov kev taw qhia ntawm lub raj xa dej los ntawm 45 degrees nrog lub vojvoog nruj nruj. Qhov "luv vojvoog" tshwj xeeb txhais tau tias yog qhov nruab nrab khoov lub vojvoog (R) sib npaug rau 1 npaug ntawm cov yeeb nkab nominal (NPS), qhia tias yog 1D.
Tus txheej txheem tswj hwm qhov ntev rau lub Hoobkas- ua pob tw- vuam fittings, suav nrog lub luj tshib, yog ASME B16.9. Rau induction khoov thiab cov yeeb nkab khoov tsim los ntawm cov yeeb nkab ncaj, cov qauv tsim yog ASME B16.49.
Raws li ASME B16.49 S4.2:
Luv Radius (SR)=1 × Nominal Pipe Size (NPS).
Centerline dabtsi yog khoov vojvoog R=1 DN (metric) los yog R=1 × NPS (imperial).
Piv txwv:
6 "Sch 80S F53 khoov → R=6" (152.4 mm).
10″ Sch 60 F53 khoov → R=10″ (254 mm).
45℃Luv Radius Luj tshib / Khoov Dimensions
Thawj qhov loj me rau lub luj tshib 45℃yog qhov chaw nruab nrab - mus rau - qhov kawg ntawm qhov deb, feem ntau raug xaiv raws li qhov loj me "F" lossis "A" hauv kab kos. Rau luv -voj kaum 45℃luj tshib, qhov kev ncua deb no me dua qhov ntev - vojvoog 45℃luj tshib ntawm tib cov yeeb nkab loj.
Cov lus hauv qab no qhia txog qhov chaw nruab nrab-rau- qhov kawg qhov ntev rau luv luv vojvoog 45℃fittings, raws li kev lag luam- cov ntaub ntawv txheem.
|
Nominal Pipe Loj (NPS) |
Sab nraud txoj kab uas hla ntawm Bevel (OD) |
Center-rau-End (A/F) Dimension |
|
1 |
33.4 hli (1.32 nti) |
25mm (1.00 nyob rau hauv) |
|
2 |
60.3 hli (2.38 nti) |
51mm (2.00 nyob rau hauv) |
|
3 |
88.9mm (3.50 nyob rau hauv) |
76mm (3.00 nyob rau hauv) |
|
4 |
114.3 hli (4.50 nti) |
102mm (4.00 nyob rau hauv) |
|
6 |
168.3 hli (6.62 nti) |
152mm (6.00 nyob rau hauv) |
|
8 |
219.1 hli (8.62 nti) |
203mm (8.00 nyob rau hauv) |
|
10 |
273.0 hli (10.75 nti) |
254mm (10.00 nyob rau hauv) |
|
12 |
323.8 hli (12.75 nti) |
305mm (12.00 nyob rau hauv) |
|
14 |
355.6 hli (14.00 nti) |
356mm (14.00 nyob rau hauv) |
|
16 |
406.4 hli (16.00 nti) |
406mm (16.00 nyob rau hauv) |
Tseem ceeb Tolerances: Raws li ASME B16.9, qhov chaw - mus rau - qhov kawg qhov ntev kam rau fittings txog NPS 24 yog ± 1.5 hli (1/16 nyob rau hauv). Phab ntsa thickness tom qab khoov yuav tsum tsis txhob tsawg tshaj li qhov tsawg kawg nkaus yuav tsum tau rau cov coj ncaj yeeb nkab.
Super Duplex Stainless Hlau F53 Cov txiaj ntsig
F53, tseem hu ua UNS S32750, yog super duplex stainless hlau. Cov tsev neeg ntawm cov alloys no yog tus cwj pwm los ntawm kev sib xyaw microstructure ntawm kwv yees li 50% austenite thiab 50% ferrite, uas muab rau lawv:
Exceptional Corrosion Resistance: Tshwj xeeb tshaj yog tiv thaiv chloride kev nyuaj siab corrosion cracking, pitting, thiab crevice corrosion, tshaj tus qauv 316L los yog 304 stainless hlau.
High Mechanical Strength: Kwv yees li ob npaug ntawm cov khoom muaj zog ntawm cov qauv austenitic stainless hlau, tso cai rau cov phab ntsa tuab txo qis hauv qee qhov qauv tsim.
Kev tsim khoom thiab kev ua raws cai: ASME B16.49
Thaum ASME B16.9 npog prefabricated luj tshib, ASME B16.49 tswj induction-bent yeeb nkab dabtsi yog khoov, uas yog tsim los ntawm khoov ncaj yeeb nkab ntu. Khoov rau B16.49 yog ib qho ntawm cov kab loj loj lossis cov kev xav tau tshwj xeeb.
Rau cov khoom siv F53, cov txheej txheem khoov (feem ntau induction bending) yuav tsum tau ua tib zoo tswj. Ib qho kev daws teeb meem tom qab annealing thiab quenching kev kho cua sov yog yuav luag ib txwm yuav tsum tau los kho qhov pom zoo 50/50 theem sib npaug thiab corrosion zog tom qab khoov tau tsim.
Cov kev xav tau thaum tsim khoom muaj xws li:
Qhov chaw khoov yuav tsum tsis muaj kab nrib pleb thiab buckles.
Thaum kawg phab ntsa thickness yuav tsum tau raws li tus qauv specification.
Kev kho cua sov yuav tsum tau ua raws li cov cai uas cuam tshuam.
Hauv kev xaus, F53 45℃luv vojvoog khoov yog qhov ua tau zoo - kev daws teeb meem rau nruj, corrosive piping layouts.
