ASTM ASTM A123 hydraulic galvanzied steel yeeb nkab

ASTM ATM A123 yog tus qauv rau kub-dip galvanizing (Zinc cov khoom lag luam, uas yog dav siv hauv ntau cov qauv hlau thiab hlau kav los txhim kho corrosion tsis kam. Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog ASTM A123 kub-dip galvanized steel kav dej:

Tus Qauv Lub Npe: ASTM A123 \/ A123M - Txuj Ci Kev Tshwj Xeeb rau kub-dip txheej galvanizing (Zinc txheej) ntawm cov khoom steel.

Cov qauv ntawm daim ntawv thov: Nws yog siv rau cov khoom lag luam steel galvanized los ntawm ntau dua cov qauv hlau, nrog rau cov qauv hlau, xws li astm A53).

Lub Hom Phiaj: Txhawm rau muab kev tiv thaiv ntev ntev los ntawm kev tiv thaiv zinc ntawm zinc txheej, haum rau cov xwm txheej tshwm sim rau ib puag ncig corrosive.

Cov khoom siv hauv paus: Feem ntau cov hlau roj (xws li ASTM A36, A53, thiab lwm yam), uas yuav tsum tau huv thiab tsis muaj cov roj ntsha thiab roj.

Pretreatment: Acid ntxuav (hydrochloric acid lossis sulfuric acid) kom tshem tawm cov xeb nrog ammonium zinc chloride) kom txhim kho cov nplaum ntawm zinc txheej.

Zinc Immersion: Tom qab cov yeeb nkab ua ntej, cov yeeb nkab steel yog raus hauv moltening hauv moltening dinc kua (txog {{}} degree nrog zinc los tsim txheej alloy.

Txias: Huab cua lossis dej txias los ua ib qho sab nraud zinc txheej, muab kev tiv thaiv kab mob moov cais.

Cov Kev Yuav Tsum Muaj Txheej Txheem

Thickness: cais raws li cov tuab ntawm cov khoom siv hauv paus:

Cov Khoom Siv Cov Thickness <1.6MM: tsis muaj feem xyuam rau A123.

1.6mm tsawg dua los yog sib npaug rau cov tuab <3.2 hli: qhov tuab nruab nrab tuab yog ntau dua lossis sib npaug nrog 55 μm, thiab thaj chaw hauv nroog loj dua los yog sib npaug rau 43 μm.

Thickness ntau dua los yog sib npaug rau 3.2mm: qhov nruab nrab ntau dua lossis sib npaug rau 85 μm, hauv zos ntau dua los yog sib luag rau 70 μm.

TXHEEJ TXHEEM nyhav: Nws tuaj yeem kuaj los ntawm txoj kev hnyav (xws li qhov loj ntawm zinc txheej ib sab, g \/ m²).

Kev Ntsuam Xyuas Pom: Qhov saum npoo txuas tas mus li thiab tsis sib xws, tsis muaj qhov tsis xws luag, tsis muaj qhov sib thooj, npuas, thiab zinc lumps.

Adhesion kuaj: rauj lossis hla kev txiav kev yuav kom ntseeg tau tias cov txheej tsis tev tawm.

Thickness ntsuas: sib nqus qauv lossis metallographic tsom tus qauv.

Corrosion Kuj: Tshuaj ntsuam xyuas los ntawm kev tshuaj ntsev (xws li ASTM B117), tab sis A123 tsis qhia meej txog lub sijhawm.

Architecture: thav duab kos duab, tus saib xyuas, Ru Tsev Txhawb.

Cov txheej txheem: Choj Cheebtsam, txoj kev teeb lub teeb, muab cov yees.

Cov Piping System: Dej thiab Roj Khoom Siv Roj (yuav tsum tau ua raws li cov qauv yeeb tshuaj xws li ASTM A53).

Kev lag luam: chaw khaws khoom cia, khoom siv ua liaj ua teb.

ASTM A153: Haum rau cov khoom me me (bolts, neeg rau), nrog thij paintings.

ISO 1461: thoob ntiaj teb sib npaug txheem. Cov cai yuav tsum tau zoo sib xws, tab sis muaj qhov sib txawv me ntsis hauv cov kev faib tawm tuab.

ASTM A53: steel yeeb nkab tsim cov qauv. Galvanized steel kav yuav tsum tau ntsib ob qho tibs3 thiab A123 ib txhij.

Qhov Zoo:

Ntev ntev dhau los tiv thaiv corrosion (20-50} xyoo, nyob ntawm ib puag ncig).

Nws yuav tsum tsis muaj kev saib xyuas thiab muaj kev lag luam zoo.

Cov txheej hnav yog hnav-resistant thiab tuaj yeem tiv thaiv kev hnav thaum thauj mus los thiab teeb tsa.

Txwv Txwv:

It may fail in high-temperature environments (>200 degree).

High-chlorine ib puag ncig xws li dej hiav txwv xav tau kev tiv thaiv ntxiv (xws li txheej + galvanizing).

Cia thiab tuav: Zam kev puas tsuaj rau kev puas tsuaj rau cov txheej. Nyob rau hauv ib puag ncig noo, kom zoo rau kev nyab xeeb kom tiv thaiv hws.

Vuam thiab txiav: txheej (xws li pleev xim galvanized xim) yuav tsum tau kho kom tiv thaiv kev xeb hauv zos.

Hloov tshiab: Paub meej qhov tseeb tshaj plaws (xws li ovm 123-17}), thiab them nyiaj rau kev kho dua ntawm cov txheej txheem tuab lossis cov qauv ntsuas.

Cov chaw tsim khoom yuav tsum tshaj tawm cov lus qhia thib peb los ua pov thawj raws li ASTM A123.

Kev lag luam tshwj xeeb (xws li cov kav dej haus dej) yuav tsum tau ua raws li cov qauv ntxiv xws li NSF \/ ANSI 61.

ASTM ATM A123 kub-dip galvanized steel kav tiv thaiv los ntawm kev tiv thaiv corrosion zoo heev los ntawm Molten Zinc Txheej thiab tau siv dav hauv ib puag ncig hnyav. Cov qauv nruj rau nws cov txheej tuab, nplaum thiab cov tsos thiab tsos kom cov khoom lag luam zoo. Ua ke nrog lwm cov qauv hlau yeeb (xws li ASTM A53), nws tuaj yeem ntsib cov kev lag luam sib txawv. Yog xaiv, kev teeb tsa thiab kev txij nkawm tuaj yeem ua rau nws lub neej pabcuam kom zoo.