JIS G 3461 steel yeeb nkabyog seamless (SMLS) los yog hluav taws xob-kuj-welded (ERW) carbon steel yeeb nkab, feem ntau yog siv hauv boilers thiab tshav kub exchangers rau daim ntaub ntawv xws li realizing tshav kub exchangers ntawm sab hauv thiab sab nraum lub raj.
Navigation Khawm
Qhov Loj
Qib Classification
Cov khoom siv raw
Kev tsim cov txheej txheem ntawm JIS G 3461
Pipe End Hom
Kev kho cua sov
Tshuaj muaj pes tsawg leeg ntawm JIS G 3461
Mechanical Performance ntawm JIS G 3461
Hardness Test
Hydraulic Test los yog Non-destructive Test
Yeeb Nkab Qhov Ntsuas ntawm JIS G 3461
Dimensional Tolerance ntawm JIS G 3461
Qhov tshwm sim
Kos npe
Daim ntawv thov rau JIS G 3461
JIS G 3461 Sib npaug Standard
Peb cov khoom muaj feem xyuam
Qhov Loj
Haum rau cov kav hlau steel nrog lub cheeb sab nraud ntawm 15.9-139.8mm.
Cov khoom siv raw
Tubes yuav tsum tau tsim los ntawm lubtua hlau.
Cov hlau tua yog ib hom hlau uas tshem tawm cov pa oxygen los ntawm cov hlau los ntawm kev ntxiv cov deoxidizer xws li silicon, aluminium, lossis manganese thaum lub sij hawm melting.
Qhov kev kho no ua rau cov hlau uas zoo li tsis muaj cua npuas lossis lwm cov pa roj carbon monoxide, uas txhim kho qhov sib xws thiab tag nrho cov khoom ntawm cov hlau.
Kev tsim cov txheej txheem ntawm JIS G 3461
Kev sib xyaw ua ke ntawm kev tsim cov yeeb nkab thiab cov txheej txheem tiav.
Kub-tiav seamless steel raj: SH
Cold-tiav seamless steel raj: SC
Raws li hluav taws xob kuj welded steel raj: EG
Kub-tiav hluav taws xob kuj welded steel raj: EH
Txias-tiav hluav taws xob tiv thaiv welded steel raj: EC
Thaum cov yeeb nkab steel yog tsim los ntawm kev ua haujlwm vuam, cov hlaws hlaws yuav tsum tau muab tshem tawm ntawm sab hauv thiab sab nrauv kom lub ntsej muag ntawm cov yeeb nkab yog du raws qhov contour.
Weld hlaws rau ntawm qhov chaw sab hauv yuav tsis raug tshem tawm yog tias tus neeg yuav khoom thiab cov chaw tsim khoom pom zoo.
Pipe End Hom
Cov yeeb nkab steel yuav tsum tiaj tus.
Kev kho cua sov
Cov txheej txheem tsim khoom ntawm cov yeeb nkab steel thiab nws cov khoom siv qib yuav tsum tau txiav txim siab thaum xaiv cov kev kho cua sov uas tsim nyog.
Cov txheej txheem kev tsim khoom sib txawv thiab cov khoom siv qib yuav xav tau cov kev kho cua sov sib txawv kom ua tiav cov khoom xav tau thiab microstructure.
Tshuaj muaj pes tsawg leeg ntawm JIS G 3461
Thermal tsom xam txoj kevyuav tsum ua raws li cov qauv hauv JIS G 0320.
Alloying cov ntsiab lus uas tsis yog cov tuaj yeem muab ntxiv kom tau txais cov khoom tshwj xeeb.
Txoj kev ntawmkev tshuaj xyuas cov khoomyuav tsum ua raws li cov qauv hauv JIS G 0321.
Thaum cov khoom raug soj ntsuam, qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg ntawm cov yeeb nkab yuav tsum ua raws li cov lus qhia 3 ntawm JIS G 0321 rau seamless steel kav thiab Table 2 ntawm JIS G 0321 rau cov kav hlau tsis kam.
Mechanical Performance ntawm JIS G 3461
Cov kev cai dav dav rau kev sim tshuab yuav tsum ua raws li Tshooj 7 thiab 9 ntawm JIS G 0404.
Txawm li cas los xij, cov qauv qauv rau kev ntsuas tshuab yuav tsum ua raws li cov cai ntawm Chav Kawm A hauv Tshooj 7.6 ntawm JIS G 0404.
Tensile Strength, Yield Point lossis Pov Thawj Kev Nyuaj Siab, thiab Elongation
Thaum qhov kev ntsuas tensile tau ua tiav ntawm Daim Ntawv Xeem No. 12 rau lub raj hauv qab 8 hli hauv phab ntsa tuab, qhov elongation yuav tsum ua raws li Table 5.
Flattening Resistance
Ib qho kev sim ua kom tsis muaj zog tsis tas yuav tsum muaj rau seamless steel yeeb nkab.
Test Method Muab cov qauv tso rau hauv lub tshuab thiab flatten nws kom txog thaum qhov kev ncua deb ntawm ob lub platform mus txog tus nqi teev.H.Tom qab ntawd xyuas cov qauv rau cov kab nrib pleb.
Thaum kuaj qhov tseem ceeb ntawm cov yeeb nkab welded, txoj kab nruab nrab ntawm qhov vuam thiab qhov nruab nrab ntawm cov yeeb nkab yog perpendicular mus rau compression kev taw qhia.
H=(1+e)t/(e+t/D)
H: nrug ntawm platens (mm)
tTug: Phab ntsa thickness (mm)
D: Sab nraud txoj kab uas hla ntawm lub raj (mm)
е: tas li txhais rau txhua qib ntawm lub raj.STB340: 0.09;STB410: 0.08;TSI 510: 0.07.
Flaring khoom
Flaring Property test tsis tas yuav tsum muaj rau cov raj seamless.
Ib qho kawg ntawm cov qauv yog flared nyob rau hauv chav tsev kub (5 ° C mus rau 35 ° C) nrog ib tug conical cuab tam ntawm ib tug kaum sab xis ntawm 60 ° kom txog rau thaum lub sab nraud txoj kab uas hla yog loj los ntawm ib tug ntau ntawm 1.2 thiab soj ntsuam cov kab nrib pleb.
Qhov kev xav tau no tseem siv tau rau cov raj uas muaj sab nraud ntawm ntau dua 101.6 hli.
Rov qab Flattening Resistance
Qhov rov qab flattening xeem daim thiab cov qauv xeem yuav tsum yog raws li nram no.
Txiav ib qhov ntev ntawm 100 hli ntawm qhov ntsuas ntawm ib kawg ntawm cov yeeb nkab thiab txiav cov khoom xeem nyob rau hauv ib nrab ntawm 90 ° los ntawm cov kab weld ntawm ob sab ntawm lub voj voog, noj ib nrab uas muaj cov vuam raws li cov ntawv xeem.
Nyob rau hauv chav tsev kub (5 ° C mus rau 35 ° C) flatten cov qauv mus rau hauv ib lub phaj nrog lub weld nyob rau sab saum toj thiab tshuaj xyuas cov qauv rau cov kab nrib pleb.
Hardness Test
| Lub cim ntawm qib | Rockwell hardness (tus nqi nruab nrab ntawm peb txoj haujlwm) HRBW |
| SWB 340 | 77 max ua. |
| SWB 410 | 79 max ua. |
| SWB 510 | 92 max ua. |
Hydraulic Test los yog Non-destructive Test
Yuav tsum tau ua ib qho kev sim Hydraulic lossis tsis muaj kev puas tsuaj rau txhua lub yeeb nkab.
Kev Xeem Hydraulic
Tuav cov yeeb nkab sab hauv ntawm qhov tsawg kawg nkaus lossis siab dua siab P ntev li 5 vib nas this, tom qab ntawd xyuas tias cov yeeb nkab tuaj yeem tiv taus qhov siab yam tsis muaj qhov xau.
P = 2st/D
PKev ntsuas siab (MPa)
tTug: Phab ntsa thickness (mm)
D: Sab nraud txoj kab uas hla ntawm lub raj (mm)
s: 60% ntawm tus nqi tsawg kawg nkaus ntawm qhov taw tes tawm los yog pov thawj kev ntxhov siab.
P max.10 MPa.
Yog tias tus neeg yuav khoom qhia txog qhov siab, ntau dua qhov ntsuas qhov ntsuas siab P lossis 10 MPa, qhov ntsuas ntsuas siab yuav tsum tau pom zoo los ntawm Tus Neeg yuav khoom thiab cov chaw tsim khoom.
Nws yuav tsum tau teev nyob rau hauv 0.5 MPa increments yog tsawg tshaj li 10 MPa thiab nyob rau hauv 1 MPa increments yog 10 MPa los yog siab dua.
Kev kuaj tsis muaj kev puas tsuaj
Kev ntsuam xyuas tsis muaj kev puas tsuaj ntawm cov hlab hlau yuav tsum tau ua los ntawm kev ntsuas ultrasonic lossis eddy tam sim no.
Rau cov yam ntxwv ntawm kev soj ntsuam ultrasonic, lub teeb liab los ntawm cov qauv siv uas muaj cov qauv siv hauv chav kawm UD raws li tau teev tseg hauv JIS G 0582 yuav tsum raug suav tias yog qib tswb thiab yuav tsum muaj cov teeb liab sib npaug lossis ntau dua li lub tswb.
Rau eddy tam sim no kev soj ntsuam cov yam ntxwv, lub teeb liab los ntawm cov qauv siv tau teev tseg nyob rau hauv JIS G 0583 nrog EY qeb yuav tsum raug xam raws li lub tswb theem, thiab yuav tsum tsis muaj teeb liab sib npaug zos rau los yog ntau tshaj lub tswb theem.
Yeeb Nkab Qhov Ntsuas ntawm JIS G 3461
Cov ntaub ntawv hauv daim ntawv qhia qhov hnyav yog raws li cov qauv hauv qab no.
W = 0.02466t(Dt)
Wunit loj ntawm cov yeeb nkab (kg / m)
t: phab ntsa thickness ntawm cov yeeb nkab (mm)
D: Sab nraud txoj kab uas hla ntawm cov yeeb nkab (mm)
0.02466 ib: Kev hloov pauv kom tau txais W
Cov qauv saum toj no yog kev hloov pauv raws li qhov ceev ntawm cov raj steel ntawm 7.85 g / cm³ thiab cov txiaj ntsig tau muab sib npaug rau peb qhov tseem ceeb.
Dimensional Tolerance ntawm JIS G 3461
Tolerances nyob rau sab nraud
Tolerances ntawm phab ntsa Thickness thiab eccentricity
Tolerances ntawm Ntev
Qhov tshwm sim
Sab hauv thiab sab nraud ntawm cov yeeb nkab steel yuav tsum du thiab tsis muaj qhov tsis zoo siv.Rau kev tiv thaiv vuam steel yeeb nkab, qhov siab ntawm sab hauv vuam ≤ 0.25mm.
Rau cov kav hlau steel nrog OD ≤ 50.8mm lossis phab ntsa thickness ≤ 3.5mm, INSIDE CAMPS ≤ 0.15mm yuav tsum tau.
Qhov saum npoo ntawm cov yeeb nkab steel tuaj yeem kho tau los ntawm kev sib tsoo thiab chipping, machining, lossis lwm txoj kev.Raws li ntev raws li kho phab ntsa thickness
yog nyob rau hauv daim ntawv teev cov phab ntsa thickness kam rau ua, thiab saum npoo ntawm kho qhov yuav tsum du.
Kos npe
Ua ib txoj hauv kev tsim nyog los sau cov ntaub ntawv hauv qab no.
a) Cov cim ntawm qib;
b) Cov cim rau kev tsim khoom;
c) Dimensions: sab nraud txoj kab uas hla thiab phab ntsa thickness;
d) Tus neeg tsim khoom lub npe lossis txheeb xyuas lub npe.
Daim ntawv thov rau JIS G 3461
Feem ntau yog siv rau cov kav dej, cov kav dej flue, cov kav dej superheater, thiab cov kav dej ua ntej cua sov hauv boilers, cov pa roj carbon steel yog siv los ua kom paub qhov sib pauv cua sov sab hauv thiab sab nraud.
Tsis tas li ntawd, cov raj no tau siv dav hauv kev lag luam tshuaj lom neeg thiab roj av rau cov raj xa hluav taws xob, cov raj condenser thiab cov raj catalyst.
Txawm li cas los xij, lawv tsis haum rau combustion rhaub tubes thiab cov cua kub exchanger raj rau qhov kub thiab txias.
JIS G 3461 Sib npaug Standard
Peb cov khoom muaj feem xyuam
Txij li thaum nws tsim nyob rau hauv 2014, Botop Steel tau dhau los ua tus xa khoom ntawm carbon steel yeeb nkab nyob rau sab qaum teb Tuam Tshoj, paub txog kev pabcuam zoo, cov khoom zoo, thiab cov kev daws teeb meem.Lub tuam txhab muaj ntau yam carbon steel kav thiab lwm yam khoom, xws li seamless, ERW, LSAW, thiab SSAW steel yeeb nkab, raws li zoo raws li ib tug tag nrho lineup ntawm cov yeeb nkab fittings thiab flanges.
Nws cov khoom tshwj xeeb kuj suav nrog cov qib high-qib alloys thiab austenitic stainless hlau, tsim kom tau raws li qhov xav tau ntawm ntau yam kev siv kav dej.
Hot Tags: jis g 3461, stb310, stb410, stb510, carbon steel yeeb nkab, lwm tus neeg, manufacturers, hoobkas, stockists, tuam txhab, lag luam wholesale, yuav, nqe, hais, tej, kev muag, nqi.
Post lub sij hawm: May-11-2024