Galvanized steel yeeb nkab
Peb lub tuam txhab tshwj xeeb hauv seamless steel yeeb nkab exportgalvanized yeeb nkab, Seamless Galvanized yeeb nkab, SMLS galvanized yeeb nkab, WELDED galvanized yeeb nkab.
Dab tsi yog qhov txawv ntawm kub galvanized thiab txias galvanized?
Kub-dip galvanizing thiab txias galvanized qhov txawv:
1. Galvanizing, tseem hu ua kub dip galvanized, nws yog lub ingot melted nyob rau hauv high kub, ib tug xov tooj ntawm supplementary khoom nyob rau hauv qhov chaw, ces dipped galvanized hlau qauv qhov, cov hlau tivthaiv ntawm ib txheej ntawm zinc txheej. Qhov zoo ntawm kub-dip galvanizing corrosion ntawm nws lub peev xwm, adhesion thiab hardness ntawm zinc txheej yog zoo dua
"Cold plated" lossis "plating", piv txwv li zinc ntsev tov los ntawm electrolysis, mus rau lub plating ntawm txheej, feem ntau tsis muaj cua sov, me me ntawm zinc, qhov chaw ntub dej yog yooj yim heev rau poob.
2. Kub dip galvanized (galvanizing)
Kub-dip galvanizing yog kev kho tshuaj, yog cov tshuaj tiv thaiv electrochemical.
Txias galvanizing yog qhov chaw nyob ntawm lub cev, tsuas yog txhuam cov txheej txheej zinc, cov zinc txheej yog yooj yim poob. Kev tsim kho hauv kev siv kub dip galvanizing.
Nruam kub dip galvanizing txheej txheem: steel → cua sov → txias rau kub galvanized galvanized → txias →
Txias galvanized zinc tsuas yog 10-50g / m2, nws tus kheej corrosion kuj dua kub dip galvanized ntau qhov sib txawv. Galvanized los ntawm tus nqi pheej yig dua.
Kub dip galvanized steel lub cev yog kub dip galvanized nto nyob rau hauv cov xwm txheej ntawm nws adhesion muaj zog, tsis yooj yim rau poob, txawm tias muaj kub dipgalvanized yeeb nkabcorrosion tshwm sim, tab sis nyob rau hauv ib tug ntev heev lub sij hawm kom tau raws li technical, kev noj qab haus huv yuav tsum tau.
3. Kev sib txawv ntawm kev siv tshuab
Ua ntej ntawm tag nrho cov, yog qhov sib txawv ntawm cov txheej txheem: kub-dip galvanizing yog lub workpiece degreasing, pickling, dipping, qhuav kua immersion nyob rau hauv molten zinc tej lub sij hawm, yuav tsum tau tsa.
Kuj tseem hu ua electro-galvanized txias galvanizing, yog siv cov khoom siv electrolysis ua haujlwm los ntawm degreasing, cov khoom xyaw pickling xa mus rau zinc ntsev tov, thiab txuas cov khoom siv electrolysis anode; nyob rau hauv qhov chaw thoob plaws qhov chaw ntawm zinc phaj txuas nrog cov khoom siv electrolysis zoo, lub zog siv, siv tam sim no los ntawm cathode mus rau anode ntawm kev taw qhia txav ntawm lub workpiece yuav muab tso rau hauv ib txheej ntawm zinc.
Zinc tiav qhov sib txawv: tsis muaj txias galvanized kub-dip galvanizing ilv ci tsos, tab sis lub thickness ntawm zinc txheej ntawm txias galvanizing yam ntawm kub-dip galvanizing yog ob peb zaug. Galvanized corrosion kuj tseem yog ob peb zaug.
Txheej txheem cej luam
Daim ntawv thov
Nws yog siv rau kev quab yuam thiab qhov siab, thiab rau lub hom phiaj dav dav, dej, roj thiab cov kav dej.
Qib tseem ceeb
GR.A, IB
Chemical Component
| Qib | Cov ntsiab lus %, ≤ | ||||||||
| C | Mn | P | S | CuA | NiA | CrA | MoA | VA | |
| S hom (seamless yeeb nkab) | |||||||||
| GR.A | 0.25B | 0.95 ib | 0.05 Nws | 0.045 ib | 0.40 Nws | 0.40 Nws | 0.40 Nws | 0.15 | 0.08 ib |
| GR.B | 0.30 NwsC | 1.20 | 0.05 Nws | 0.045 ib | 0.40 Nws | 0.40 Nws | 0.40 Nws | 0.15 | 0.08 ib |
| E hom (Resistance welded yeeb nkab) | |||||||||
| GR.A | 0.25B | 0.95 ib | 0.05 Nws | 0.045 ib | 0.40 Nws | 0.40 Nws | 0.40 Nws | 0.15 | 0.08 ib |
| GR.B | 0.30 NwsC | 1.20 | 0.05 Nws | 0.045 ib | 0.40 Nws | 0.40 Nws | 0.40 Nws | 0.15 | 0.08 ib |
| F hom (Qhov cub Welded yeeb nkab) | |||||||||
| A | 0.30 NwsB | 1.20 | 0.05 Nws | 0.045 ib | 0.40 Nws | 0.40 Nws | 0.40 Nws | 0.15 | 0.08 ib |
A Tus lej ntawm tsib lub ntsiab lus no yuav tsum tsis txhob ntau tshaj 1.00%.
B Rau txhua txhua 0.01% txo qis hauv cov ntsiab lus siab tshaj plaws, qhov siab tshaj plaws manganese cov ntsiab lus tau tso cai kom nce 0.06%, tab sis qhov siab tshaj plaws tsis tuaj yeem tshaj 1.35%.
C Txhua 0.01% txo qis hauv cov ntsiab lus siab tshaj plaws yuav tso cai rau cov ntsiab lus manganese siab tshaj plaws kom nce 0.06%, tab sis qhov siab tshaj plaws yuav tsum tsis pub tshaj 1.65%.
Mechanical Property
| yam khoom | GR.A | GR.B |
| tensile zog, ≥, psi [MPa] Yield zog, ≥, psi [MPa] Gauge 2in.or 50mm elongation | 48 000 [330] 30 000 [205]A,B | 60 000 [415]35 000 [240]A,B |
A Qhov tsawg kawg nkaus elongation ntawm gauge ntev 2in. (50mm) yuav tsum tau txiav txim los ntawm cov qauv hauv qab no:
e=625000(1940)A0.2/U0.9
e = qhov tsawg kawg nkaus elongation ntawm lub ntsuas 2in. (50mm), qhov feem pua tawm mus rau qhov ze tshaj 0.5%;
A = Muab xam raws li cov txheej txheem sab nraud ntawm lub nominal raj los yog lub nominal dav ntawm cov qauv tensile thiab nws cov phab ntsa thickness, thiab sib npaug mus rau qhov ze tshaj plaws cross-sectional cheeb tsam ntawm lub tensile qauv ntawm 0.01 in.2 (1 mm2), thiab Nws muab piv nrog 0.75in.2 (500mm2), qhov twg me dua.
U = teev tsawg kawg nkaus tensile zog, psi (MPa).
B Rau ntau qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov ntsuas tensile thiab cov txheej txheem tensile yam tsawg kawg nkaus, qhov tsawg kawg nkaus elongation yuav tsum tau qhia hauv Table X4.1 lossis Table X4.2, raws li nws qhov kev siv tau.
Kev Xeem Xeem
Tensile test, dabtsi yog khoov test, hydrostatic test, nondestructive hluav taws xob kuaj ntawm welds.
Muaj peev xwm muab khoom
Muaj peev xwm muab khoom: 2000 Tons Ib Hlis Ib Qib Ntawm ASTM A53 / A53M-2012 Hlau Yeeb Nkab
Ntim
Nyob rau hauv Bundles Thiab Nyob rau hauv lub zog ntoo thawv
Kev xa khoom
7-14 hnub yog nyob rau hauv Tshuag, 30-45 hnub los tsim
Kev them nyiaj
30% tso nyiaj, 70% L / C lossis B / L daim ntawv lossis 100% L / C thaum pom
Product Detail
Boiler Tube
GB/T 8162-2008
ASTM A519-2006 Kev Tswj Xyuas Kev Tswj Xyuas
TS EN 10210-1-2006
ASTM A53 / A53M-2012 Kev Ntsuas
GB9948-2006
GB6479-2013
