Nyob rau hauv lub ntiaj teb ntawm kev tua hluav taws, daim ntawv "hluav taws- ntsuas" tsis yog ib daim paib xwb- nws yog ib qho kev cog lus ntawm kev ncaj ncees nyob rau hauv cov thermal stress heev. Kev ua haujlwm ntawmhluav taws- ntsuas galvanized steel kavthaum muaj xwm txheej tseem ceeb nyob ntawm qhov tseeb ntawm lawv cov txheej txheem tsim khoom. Rau cov neeg khiav dej num thoob ntiaj teb thiab cov kws tshaj lij tiv thaiv hluav taws, kev nkag siab txog kev taug kev metallurgical los ntawm raw coil mus rau cov yeeb nkab tiav yog qhov tseem ceeb rau kev txo qis. NtawmGNEE STEEL, peb cov txheej txheem tseem ceeb yog tsim los ua kom dhau kev lag luam cov qauv ntsuas, ua kom txhua qhov ntev ntawm cov yeeb nkab muaj qhov siab tshaj plaws corrosion thiab hydraulic efficiency.
Lub Foundation: Kev Xaiv Raw Material thiab Chemical Composition
Qhov zoo ntawm ahluav taws kub- ntsuas galvanized steel yeeb nkabpib ntev ua ntej nws nkag mus rau galvanizing da dej. Lub hauv paus hlau yuav tsum muaj cov cuab yeej tshwj xeeb los tswj kev siab - dej siab, hu ua dej rauj. Peb siv qib siab - qib carbon steel (feem ntau Q235B lossis Q355B), ua kom cov pa roj carbon tsawg sib npaug rau qhov zoo tshaj plaws weldability thiab ductility.
Kev tswj xyuas meej ntawm Silicon (Si) thiab Phosphorus (P) cov ntsiab lus tseem ceeb. Yog hais tias cov ntsiab lus no siab dhau lawm, cov hlau yuav "reactive," ua rau cov tuab tuab, nkig, thiab dull grey zinc txheej (Sandelin Effect). Los ntawm optimizing cov tshuaj muaj pes tsawg leeg,GNEE STEELUa kom lub ci ci, zoo ib yam, thiab cov txheej txheem zinc uas yuav tsis flake thaum lub sij hawm grooving lossis threading txheej txheem.
Galvanized yeeb nkab
Qhov Kub-Dip Galvanizing (HDG) Txheej Txheem: Tshaj Tawm Txheej Txheej
Tsis zoo li "pre-galvanized" lossis "electro-galvanized" lwm txoj,hluav taws- ntsuas galvanized steel kavyuav tsum tau mus rau tag nrho immersion kub-dip txheej txheem. Qhov no tsim ib daim ntawv cog lus metallurgical uas muaj cov hlau sib txawv -zinc alloy txheej, topped los ntawm cov ntshiab zinc txheej txheej.
Table 1: Kub-Dip Galvanizing vs. Cold Galvanizing rau Hluav Taws Piping
| Feature | Kub-Dip Galvanizing (GNEE Standard) | Kub Galvanizing (Electro{0}}plating) |
| Hom Bonding | Metallurgical Alloy Bond | Lub cev nto Adhesion |
| Txheej Thickness | 65 - 85 μm (min{1}} g / m²) | 5 - 12 μm |
| Kev Pabcuam Lub Neej | 30 - 50 Xyoo nyob rau hauv Wet Systems | 2 - 5 Xyoo (Risk of Pitting) |
| Hardness | Alloy txheej yog nyuaj dua li cov hlau hauv paus | Mos, yooj yim khawb |
| Kev pab them nqi | Total (Internal thiab External) | Sab nrauv nkaus xwb (Internal tseem raw) |
Cov txheej txheem ntawmGNEE STEELkoom nrog ntau theem tseem ceeb:
- Degreasing thiab Pickling:Tshem tawm tag nrho cov roj thiab cov nplai zeb siv cov kua qaub da dej kom ntseeg tau tias muaj tshuaj lom neeg huv si.
- Fluxing:Siv cov yeeb yaj kiab tiv thaiv los tiv thaiv oxidation ua ntej immersion.
- Zinc Bath:Immersion nyob rau hauv 99.99% ntshiab molten zinc ntawm kwv yees li 450 degree.
- Txias thiab Passivation:Ib qho tshwj xeeb quench uas stabilizes zinc nto, tiv thaiv "dawb xeb" thaum caij nkoj hiav txwv.
Advanced Internal Bore Smoothing Technology
Ib qho kev ua tsis tau zoo nyob rau hauv qis - zoohluav taws- ntsuas galvanized steel kavyog "zinc dross" los yog sab hauv burrs. Thaum muaj hluav taws kub ceev, cov kev cuam tshuam no tuaj yeem cuam tshuam cov khib nyiab lossis tsim kev kub ntxhov, txo qhov C-factor (hydraulic flow coefficient) ntawm lub kaw lus.
NtawmGNEE STEEL, peb siv cov txheej txheem sab hauv "steam blowing" tam sim ntawd tom qab cov kav dej tawm los ntawm zinc kettle. Siab -sab siab yog txhaj los ntawm lub bore kom tshem tawm cov zinc ntau dhau, ua rau lub khob- du sab hauv. Qhov no ua kom ntseeg tau tias lub tshuab hluav taws xob hluav taws xob tswj xyuas qhov zoo tshaj plaws kev xa mus rau qhov chaw nyob deb tshaj plaws hauv lub network.
Mechanical Processing: Precision Grooving thiab Threading
Feem ntau cov tshuab hluav taws xob niaj hnub siv grooved mechanical couplings rau kev teeb tsa sai. Kev tsim khoom ntawmhluav taws- ntsuas galvanized steel kavyog li ntawd yuav tsum suav rau nruj me ntsis kam rau ua. Yog hais tias cov yeeb nkab sab nraud txoj kab uas hla (OD) los yog phab ntsa thickness sib txawv, cov grooved sib koom yuav xau nyob rau hauv siab.
Peb cov kav dej tau ua tiav siv CNC-tswj yob- tshuab grooving. Tsis zoo li kev txiav-grooving, uas tshem tawm cov hlau thiab ua rau cov yeeb nkab phab ntsa tsis muaj zog, peb yob-grooving tshem tawm cov hlau, tswj kev ncaj ncees ntawm zinc txheej thiab cov txheej txheem lub zog ntawm cov yeeb nkab kawg.
Table 2: Dimensional Tolerance Standards for Fire Piping (ASTM A53)
| Nominal Pipe Loj (NPS) | Sab nraud Diameter (OD) Tolerance | Phab ntsa Thickness kam rau ua | Nyhav Tolerance ib Length |
| 1 "rau 1-1/2" | ± 0.40 hli | - 12.5% | ± 10% |
| 2 "rau 4" | ± 1% | - 12.5% | ± 10% |
| 5 "rau 10" | ± 1% | - 12.5% | ± 10% |
| 12" thiab siab dua | ± 1% | - 12.5% | ± 10% |
Kev Tswj Xyuas Zoo: Qhov Kawg Barrier
Ua ntej ib qhohluav taws kub- ntsuas galvanized steel yeeb nkabtawm lubGNEE STEELqhov chaw, nws dhau lub roj teeb uas tsis yog -kev kuaj kev puas tsuaj thiab kev puas tsuaj.
- Kev Ntsuas Hydrostatic:Txhua cov yeeb nkab yog pressurized los xyuas kom meej tias tsis muaj microscopic leaks nyob rau hauv weld seam.
- Flattening thiab Bending Tests:Xyuas kom cov zinc txheej tseem adhered txawm tias thaum cov hlau raug rau txhua yam deformation.
- Eddy Current Testing:Ib qho automated electromagnetic scan txhawm rau txheeb xyuas cov teeb meem hauv qab ntawm cov hlau matrix.
Cov lus nug nquag nug (FAQ)
Q1: Vim li cas "Zinc Dross" txaus ntshai nyob rau hauv cov yeeb nkab hluav taws?
Zinc dross hais txog cov pob txha uas muaj zinc hauv cov yeeb nkab. Thaum muaj hluav taws kub, cov no tuaj yeem tawg thiab txhaws qhov me me ntawm lub taub hau dej (feem ntau tsuas yog 1/2 nti dav), ua rau cov hluav taws tua hluav taws tsis muaj txiaj ntsig.
Q2: GNEE STEEL puas tuaj yeem muab qhov ntev customized kom txo tau ntawm -qhov chaw pov tseg?
Yog lawm. Thaum tus qauv ntev yog 5.8m (rau 20GP ntim) los yog 6m / 12m, peb muab precision txiav thiab bespoke grooving kev pab cuam kom phim koj qhov project tshwj xeeb hydraulic xam.
Q3: Cov txheej txheem passivation cuam tshuam rau cov yeeb nkab zoo li cas?
Passivation yuav muab cov yeeb nkab me ntsis iridescent lossis matte tiav. Qhov no yog txheej txheej tshuaj tiv thaiv uas tiv thaiv cov zinc los ntawm cov dej noo thaum lub sij hawm ntev - lub sij hawm cia los yog hiav txwv freight, kom ntseeg tau tias cov yeeb nkab tuaj txog ntawm pristine.
Qhov kev ua tau zoo tshaj plaws ntawm koj lub network tiv thaiv hluav taws yog peb lub luag haujlwm tseem ceeb. Los ntawm kev sib txuas siab -purity raw cov ntaub ntawv nrog lub xeev- ntawm -the-art kub-dip galvanizing tshuab,GNEE STEELxahluav taws- ntsuas galvanized steel kavuas sawv qhov kev sim ntawm lub sij hawm thiab cua sov.
Nrhiav rau ib tug kws koom tes rau koj qhov project infrastructure tom ntej?Peb cov engineers npaj txhij los muab cov ncauj lus kom ntxaws Mill Test Certificate (MTC) thiab cov ntaub ntawv txheej txheem rau koj qhov kev tshuaj xyuas.Hu rau GNEE STEEL hnub no txhawm rau thov daim ntawv qhia kev qhia lossis lub Hoobkas - hais ncaj qha.Cia peb pab koj xyuas kom meej tias thaum muaj kev nyab xeeb nyob rau ntawm kab, koj cov kav dej yog qhov txuas uas muaj zog tshaj plaws.
[Thov Kev Sib Tham Txog Kev Sib Tham & Dawb Quote Tam Sim No]
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