Cov Lus Qhia Tseem Ceeb thiab Kev Ua Raws Cai
Cov kws tshaj lij cov neeg yuav khoom hauv kev ua liaj ua teb tsom mus rau cov qauv ntaub ntawv, qhov ntev, thiab kev ua haujlwm txheej txheej. Cov lus hauv qab no qhia txog cov ntsiab lus tseem ceeb rau kev siv tsev cog khoom.Cov neeg muab khoommuab cov ntaub ntawv pov thawj los txheeb xyuas cov kev txwv no rau cov haujlwm thoob ntiaj teb.
Table 1: Cov Qauv Tseem Ceeb rau Tsev Kho Mob Galvanized Pipes
| Txuj | Kev piav qhia | Daim ntawv thov |
| ASTM A53 | Welded thiab seamless carbon steel yeeb nkab nrog kub -dipped galvanizing | Cov qauv thav duab |
|
ASTM A500 / A501 |
Kub- ua welded thiab seamless carbon steel structural tubing | Tsev cog khoom moj khaum |
| GB/T 3091 | Tsawg-cov kua xa tawm galvanized welded steel yeeb nkab | General tsev cog khoom siv |
| GB/T 13912 | Kub-dip galvanized txheej ntawm fabricated hlau thiab steel khoom | Zinc txheej xav tau |
Table 2: Hom Dimensions thiab Zinc Txheej
| Hom yeeb nkab | Sab nraud Dia (mm) | Phab ntsa Thickness (mm) | Zinc Txheej (g / m²) | Yam tsawg kawg nkaus Thickness (μm) |
| Lub teeb ncej | 20–32 | 0.8–1.2 | Ntau dua lossis sib npaug li 200–275 | Ntau dua lossis sib npaug li 30-45 |
| Main arch / ncej | 40–60 | 1.0–2.0 | Ntau dua lossis sib npaug li 275 | Ntau dua lossis sib npaug li 45 |
| Kev txhawb nqa hnyav | 60–89 | 1.2–2.5 | 275–400+ | Ntau dua lossis sib npaug li 45-70 |
Table 3: Mechanical thiab Environmental Properties
| Khoom | Tus nqi ntau | Sau ntawv |
| Yield zog | 195-235 MPa | Feem ntau nrog Q195 / Q235 steel qib |
| Tensile zog | 270-400 MPa | Txhawb cua thiab daus loads hauv tsev cog khoom |
| Kev Pabcuam Kub | -60℃rau +100 degree | Kov thermal cycles hauv kev ua liaj ua teb |
| Cia siab rau Kev Pabcuam Lub Neej | 8–{1}} xyoo |
Nws txawv nrog zinc thickness, qhov chaw nyob, thiab kev saib xyuas |
Cov ntsiab lus no kos los ntawm kev tsim kev lag luam rau kev ua liaj ua teb.
Khoom Txheej txheem cej luam
Galvanized steel kavtsim cov txheej txheem tseem ceeb hauv kev tsim tsev cog khoom. Lawv muaj qhov sib npaug ntawm lub zog thiab kev tiv thaiv ib puag ncig yam xwm txheej hauv kev ua liaj ua teb. Kub-dipped galvanizing tsim lub ntsiab tiv thaiv txheej los ntawm immersion nyob rau hauv molten zinc. Qhov no tsim ib daim ntawv cog lus metallurgical nrog lub hauv paus steel.
Zinc txheej ua hauj lwm raws li ib tug sacrificial anode. Nws tiv thaiv cov hlau hauv qab los ntawm corrosion vim ya raws, kub hloov, thiab tshuaj ua liaj ua teb. Kub-dipped galvanizing feem ntau muab cov txheej tuab duaua ntej-galvanizedlos yog electro-galvanized xaiv. Txoj hauv kev no txhawb kev ua haujlwm ntev dua hauv cov av noo, nyob rau hauv cov xwm txheej ntawm cov tsev cog khoom.
Corrosion Resistance thiab Durability
Greenhouse ib puag ncig muaj cov av noo siab, condensation, thiab qee zaus raug tshuaj tua kab. Ib txheej zinc txheej tsawg kawg yog 275 g / m² muaj kev tiv thaiv kev tiv thaiv zoo rau feem ntau cov ntawv thov. Hauv cov cheeb tsam hauv av nrog cov xwm txheej, kev pabcuam lub neej feem ntau ncav cuag 10 txog 15 xyoo. Ntug hiav txwv lossis siab - thaj chaw ntsev yuav txo tau lub sijhawm no. Ntxiv passivation los yog thicker coatings tuaj yeem txuas ntxiv cov txiaj ntsig qhov twg xav tau nws.
Cov kav dej yuav tsum tau tswj cov kev ntxhov siab los ntawm cov cua loads thiab cov daus txuam nrog. Designs account rau cov xwm txheej no los ntawm cov phab ntsa txaus. Nyob rau hauv siab - thaj tsam kev ntxhov siab, cov seem square lossis cov duab plaub tuaj yeem txhim kho khoov tau. Sij hawm dhau mus, cov kav dej coated kom zoo tswj cov qauv kev ncaj ncees nrog tsawg zog poob hauv cov qauv siv tsev cog khoom.
Cov txheej txheem xaiv
Kev txheeb xyuas cov txheej txheem galvanizing yog qhov tseem ceeb. Cov ntaub ntawv yuav tsum qhia "kub-dipped" lossis "kub-dip galvanized." Kev tshuaj xyuas xyuas cov txheej txheej tsis sib xws, tsis pom cov kab nrib pleb, thiab kev tiv thaiv tag nrho. Zinc thickness ntsuas ua raws li cov txheej txheem xws li GB / T 4956 lossis cov qauv sib npaug.
Cov qib hlau zoo li Q195 thiab Q235 haum rau feem ntau cov tsev cog khoom tsim. Qhov ntev ntawm 6 txog 12 meters pab txo qis ntawm - chaw ua haujlwm. Rau qhov dav dav, cov kws ua haujlwm yuav muab cov kav dej sib txuas nrog cov square profiles. Hauv cov chaw xav tau, qib siab dua xws li Q355 tuaj yeem muab cov txiaj ntsig ntxiv.
Kev txhim kho thiab tu
Kev npaj ntawm qhov chaw thiab kev sib koom ua ke cuam tshuam rau kev ua haujlwm tag nrho. Cov hauv paus hauv paus ua tau zoo dua thaum khaws cia kom deb ntawm cov av ncaj qha. Kev soj ntsuam ib ntus pab txheeb xyuas cov txheej txheem thaum ntxov. Zinc- cov xim nplua nuj muab kev kho ncaj qha rau kev puas tsuaj me.
Xaus
Galvanized steel kav ua haujlwm zoo ib yam rau cov tsev cog khoom. Kev xa mus rau cov qauv, qhov ntev, thiab cov ntaub ntawv txheej thaum ntxov hauv cov txheej txheem txhawb nqa kev tsim khoom zoo thiab kev npaj. Cov pab pawg ua haujlwm tshuaj xyuas cov rooj thaum teeb tsa cov cai. Cov txheej txheem kev tsim vaj tsev hauv zos thiab kev suav suav muab cov lus qhia ntxiv rau cov chaw tshwj xeeb.
