Taw qhia
Cov kav hlau dub tau lees paub dav dav rau lawv qhov kev pheej yig thiab ua haujlwm ntev, tshwj xeeb tshaj yog nyob rau hauv qis - cov ntawv thov siab. Txawm li cas los xij, dab tsi ntau tus engineers thiab cov neeg ua haujlwm muag khoom saib dhau los yog lub luag haujlwm tseem ceeb uastxheej txheejua si hauv kev txiav txim siab ntev - lub sijhawm ua haujlwm yeeb nkab. Qhov kev xaiv ntawm txheej tuaj yeem cuam tshuam kev tiv thaiv corrosion, lifespan, txij nkawm zaus, thiab tag nrho cov nqi tsim nyog.
Tsab ntawv xov xwm no muab ib qho hauv -qhov kev soj ntsuam tob tob ntawm cov yeeb nkab hlau dub, sib piv cov kev ua tau zoo nyob rau hauv ib puag ncig kev lag luam sib txawv, thiab piav qhia seb cov kav hlau dub coated sib txawv li cas ntawm cov pa roj carbon steel. Nws lub hom phiaj pab cov neeg yuav khoom thoob ntiaj teb, EPC cov neeg cog lus, thiab cov neeg xa khoom ua cov kev xaiv paub txog lawv cov kev xav tau ua haujlwm.
Vim li cas Dub Hlau Yeeb Nkab Txheej tseem ceeb?
Thaum cov kav hlau dub tshwm "dub" vim yog cov hlau oxide nplai tsim thaum lub sijhawm tsim khoom, txheej txheej ntuj no tsis muaj kev tiv thaiv corrosion txaus. Qhov tseeb, cov kav hlau dub uas tsis muaj coated yuav sai sai degrade hauv:
- Qhov chaw ntub dej
- Cov cheeb tsam marine
- Daim ntawv thov hauv av
- Cov nroj tsuag tshuaj
- Cov kav dej tiv thaiv hluav taws
Cov txheej txheem thev naus laus zis txhim kho kev ua tau zoo los ntawm kev tsim kev thaiv ntawm cov hlau substrate thiab corrosive media. Niaj hnub no, coated dub hlau kav yog siv nyob rau hauv HVAC, hluav taws sprinkler systems, roj & roj, thiab structural engineering.
Hom txheej txheej siv rau cov kav hlau dub
Txhawm rau txiav txim siab qhov txheej txheem twg yog qhov zoo tshaj plaws rau koj qhov project, nws yog ib qho tseem ceeb kom nkag siab tias txhua pawg ua tau zoo li cas hauv ib puag ncig kev ua haujlwm tshwj xeeb.
1. Zinc-raws li txheej txheej (Kub-dip Galvanizing & Cold Galvanizing)
Zinc-raws li txheej txheej muab kev tiv thaiv kev txi vim zinc corrodes ua ntej steel substrate ua.
2. Epoxy thiab Fusion-Epoxy (FBE)
Zoo tagnrho rau kev pabcuam hauv av lossis submerged ua tsaug rau cov tshuaj tiv thaiv zoo heev.
3. Bitumen txheej
Kev lig kev cai, kev lag luam, thiab siv dav hauv cov kav dej hauv nroog thiab cov kav dej faus.
4. Roj-raws li Dub Txheej
Feem ntau yog siv los tiv thaiv kev thauj mus los los tiv thaiv xeb thaum khaws cia.
Cov lus sib piv kev ua haujlwm
| Txheej hom | Corrosion Resistance | Tus Nqi Theem | Tej kev siv | Cia siab rau Lifespan |
|---|---|---|---|---|
| Kub-dip Galvanized | Zoo heev | Nruab nrab -High | Hluav taws kub sprinklers, sab nraum zoov pipelines | 20-50 xyoo |
| Txias Galvanized (Zinc{0}}Rich) | Zoo | Nruab nrab | Sab hauv tsev, HVAC | 10-20 xyoo |
| FBE Epoxy | Zoo heev (chemical + noo noo) | Siab | faus pipelines, offshore | 30-60 xyoo |
| Bitumen | Nruab nrab | Tsawg | Cov dej hauv nroog, hauv av | 10-25 xyoo |
| Roj-raws li txheej dub | Tsawg | Tsawg heev | Cia ib ntus, sab hauv | 1-2 xyoos |
Coated Dub Hlau Yeeb vs. PaintedCarbon Steel Yeeb Nkab
Txawm hais tias ob qho tib si ua haujlwm zoo sib xws, lawv qhov kev ua tau zoo sib txawv:
- Carbon steel kav feem ntau muab kev ntsuas siab dua.
- Cov kav hlau dub yog kev lag luam ntau dua tab sis xav tau cov txheej txheem muaj zog rau kev ua haujlwm ntev.
- Txheej txheej xaiv cuam tshuam seb cov hlau dub tuaj yeem sib tw nrog cov hlau hauv cov ntawv thov.
Kev Siv Hluav Taws Xob thiab Cov Txheej Txheem Kev Xaiv
Txhawm rau xaiv cov txheej txheem kom raug:
Rau Fire Protection Systems
- Kub-dip galvanizing yog qhov zoo dua vim muaj dej noo nyob hauv cov kav dej.
Rau Underground Water Transport
- Bitumen lossis epoxy yog qhov zoo tagnrho vim av noo thiab pH hloov pauv.
Rau Roj & Roj
- FBE epoxy ua tau zoo tshaj plaws tiv thaiv hydrocarbons thiab tshuaj.
Rau HVAC Systems
- Txias galvanizing muab cov nqi zoo tshaj -kev ua tau zoo.
Xaus
Coatings ho txhim kho kev siv tau, kev nyab xeeb, thiab lub neej ntev ntawm cov kav hlau dub thoob plaws kev lag luam. Xaiv cov txheej txheej zoo tsis yog ib qho teeb meem ntawm tus nqi xwb tab sis ntawm kev sib piv cov khoom siv rau ib puag ncig thiab kev ua haujlwm.
Rau cov neeg yuav khoom thoob ntiaj teb nrhiav kev siab - zoo coated dub hlau thiab carbon steel kav,Huayang steel yeeb nkabmuab ntawv pov thawj, xa tawm- cov khoom qib uas ua tau raws li ASTM, EN, JIS, thiab ISO qauv.
