Raws li lub vuam cov ntaub ntawv tshwj xeeb tsim rau Highy stainless hlau (xws li tsim hluav taws xob vuam
Kuv. Subversive hloov kho ntawm alloy muaj pes tsawg leeg
Cov Cheebtsam tseem ceeb ntawm ER385 yog 2 {{{{% cr,}}}}} {{{{{}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} mo) mo):
1. Ob npaug Molybdenum cov ntsiab lus (4. {{}}
2. Tooj syrergy: Tooj hluav taws xob txhim kho corrosion tsis kam rau tsis-oxidizing cov kua qaub, uas yog qhov tawg uas tsoos hlau tsis tuaj yeem ua tiav.
Ii. Cov kev pab cuam txhua yam ntawm kev kho corrosion-resistant scenience
| Corrosion hom | ER385 Kev Ua Tau Zoo | Txwv ntawm cov tsoos vuam (xws li 316L) |
|---|---|---|
| Non-oxidizing acid | Nws yog yuav luag non-corrosive nyob rau hauv sulfuric acid (concentration tsawg dua lossis sib npaug rau 70%), phosphoric acid, thiab yog qhov tsim nyog rau cov khoom lag luam tshuaj thiab tshuaj. | Nws tsuas yog ua siab ntev ntawm cov kua qaub qis ntawm cov kua qaub, thiab cov xeb ntawm cov xeb nce ntxiv kom muaj ntau dua ntawm cov kev muaj siab. |
| Chloride Ib puag ncig | Qhov pitting tiv taus (pren) yog ntau dua los yog sib npaug rau 40, uas yog qhov zoo dua 40 xyoo (xws li 2205) thiab 316L (PREN≈26). | Pitting thiab kev ntxhov siab corrosion cracking yog qhov tshwm sim hauv cov chloride ib puag ncig. |
| Kev ntxhov siab corrosion cracking (SCC) | Daim ntawv qhia txog Austenite tag nrho + ultra-tsawg carbon tsim (C tsawg dua lossis sib npaug ntawm {2}}. 02%. | Rerrite ferrite nyob rau hauv duplex Steel Welds Tej zaum yuav ntxias Scc. |
III. Cov txheej txheem vuam thiab cov microstructure optimization
1. Cov kev pheej hmoo ntawm Weld: Zam kev pheej hmoo ntawm cov roj av roj hmab hlau vuas luaj (pom zoo cov lus sov tam sim no}}} A) los tiv thaiv kev tawg ua cua sov.
2.
3. Cov txheej txheem sib xyaw: Mig \/ Submerged Arc Vuam, nrog LOJ SIAB LOJ HEEV, MEAT SPRATI, thiab zoo nkauj Weld Tsim.
IV. DINDUSTRY KHWV NYIAJ TAU
| tshav pob | ER385 Cov Ntawv Thov Raug Zoo | Tsoos Veb Vuam Hlau Hloov Cov Yeeb Yam |
|---|---|---|
| Tshuaj Lom Zem | Refor, phosphoric acid evaporator (concentrring resistance nce los ntawm 30%). | Tsuas haum rau cov xov xwm qis (xws li dilute sulfuric acid). |
| Marine engineering | Desalination Pipelines thiab platform cov qauv (tiv thaiv chloride ion corrosion kev pabcuam lub neej ncua ntawm 50%). | Pitting thiab perforation yuav tshwm sim tom qab kev sib kis mus ntev. |
| Kev tiv thaiv lub zog thiab kev tiv thaiv ib puag ncig | Flue Gas Desulfurization ntaus ntawv (tiv taus cov pa roj cua kub siab). | Tsis txaus colrosion tsis kam ntawm qhov kub. |
V. Kev khwv nyiaj thiab cov txiaj ntsig ntev
Txawm hais tias tus nqi ntawm ER385 vuam hlau yog siab dua li ntawm cov ntaub ntawv ib txwm muaj (txog}% siab dua), nws lub neej nce qib qis dua:
- Txo cov zaus ntawm cov cuab yeej kaw thiab txij nkawm (lub neej ntawm cov khoom siv tshuaj lom tuaj yeem txuas ntxiv rau ntau tshaj 15 xyoos).
- Txhim kho cov kev pheej hmoo ib puag ncig los ntawm kev ua kom xeb (xws li cov kua qaub xau).
Xaus: Yuav ua li cas ER385 txhais tau tus qauv tshiab rau corrosion-resistant vuam hlau?
ER385 tawg los ntawm cov neeg siv cov xaim hluav taws xob tsoos vuam siv cov khoom siv tsis zoo, cov tshuaj lom neeg Nyob rau yav tom ntej, nrog kev pom zoo ntawm kev txawj ntse thev naus laus zis (xws li tsis siv neeg qhov kev nce qib), nws cov txheej txheem rhiab heev yuav raug txo ntxiv.
