Li qub nyob rau hauv cov kev lag luam sib txawv yuav tsum tau xaiv cov kev xaiv tsim nyog raws cov yam ntxwv, kev ua haujlwm siab, thiab kub. Cov hauv qab no yog kev qhia txog cov khoom siv hluav taws xob feem ntau:
Cov ntaub ntawv hlau
- Nrum Hlau
Grey cam khwb cia hlau: Tus nqi qis, zoo heev Castability thiab tshuabsab, siab compressive zog, tab sis tsis zoo. Haum rau kev xa cov qes qis {{1} Kev haus dej kom zoo li dej, roj, thiab chav nrog rau 1.6 MPa thiab kub thiab txias xyoo. Cov ntaub thaiv cov xim txho
Zas Hlau: Graphite yog spherical thiab muaj cov kws kho tshuab ua kom zoo dua li cov xim pob zeb ua kom zoo nkauj, cuam tshuam tsis zoo, thiab corrosion tsis kam. Feem ntau siv rau kev xa dej xws li dej, roj, thiab cov pa roj nominal tsawg dua los yog 350 degree, xws li cov txheej txheem dej loj hauv cov dej khov.
- Cov Hlau Hlau
WCB Carbon Steel: Siv tau dav, nrog rau cov khoom siv tshuab ntau zaus, muaj peev xwm nrog nrog kev ntsuas siab siab thiab kub. Haum rau kev siv nrog media xws li Chav, dej, thiab roj ntawm nominal xov tsawg dua lossis sib npaug ntawm 25.0 MPA thiab 425 degree. Piv txwv li, ntau li qub nyob rau hauv petrochemical raj xa dej yog ua los ntawm WCB Carbon Steel.
WC6 thiab WC9 cov hlau loj: Muaj cov khoom siv hluav taws xob alloy xws li chromium thiab molybdenum, lawv muab lub siab zoo, thiab corrosion tsis kam piv rau cov pa roj carbon hlau. Lawv feem ntau siv nyob rau hauv high- kub, siab} lub tshuab hluav taws xob hnyav, nrog kev ua haujlwm kub nce mus txog 540℃lossis siab dua.
- Stainless hlau
304 Stainless Hlau: Muaj 18% chromium thiab 8% npib tsib xee, muab cov khoom tawm tsam zoo, kub tsis kam, thiab ua kom sov. Nws yog qhov tsim nyog rau kev siv nrog cov kev thauj khoom feem ntau, xws li kev thauj mus los ntawm cov khoom noj me me hauv cov khoom noj thiab dej haus thiab cov khoom siv dej kom sov.
316 Stainless Hlau: Muaj 2-3% molybdenum thiab muaj cov tshuaj tiv thaiv zoo tshaj plaws rau pitting, intergranular corrosion piv rau 304 stainless hlau. Feem ntau siv rau kev tuav cov khoom siv hluav taws xob heev, xws li cov roj av siv los thauj cov kua xeb zoo li sulfuric acid thiab acetic acid hauv kev lag luam tshuaj.
- Tooj liab thiab tooj liab alloys
Ntshiab Tooj (Liab Tooj Liab): Zoo heev hluav taws xob thiab thermal siv, muaj zog corrosion tsis kam, thiab muaj kuab huv, tab sis kuj muaj zog. Nws yog feem ntau siv hauv kev ua ntsuas, cov khoom siv cryogenic, thiab rau kev thauj cov oxygen tshwj xeeb, raws li nws ua tsis muaj txim thiab muaj kev nyab xeeb rau siab.
Tooj dag (tooj liab - zinc alloy): Cov khoom siv tshuab ua kom dhau los tooj liab qab tooj liab, nrog rau cov khoom noj tau zoo thiab tus nqi qis. Nws yog feem ntau siv nyob rau hauv cov dej so thiab tso kua rau li qub nyob rau hauv cov tsev nyob, xws li cov kais dej thiab cov kais dej thiab cov plaub hau. Nws tseem siv rau tsawg - kev kub siab thauj mus rau qhov chaw corrosion kuj yog tsawg heev.
Bronze (tooj liab - tin alloys, thiab lwm yam): Cov nta lub zog siab, hardness, thiab hnav zoo thiab corrosion tsis kam. Haum rau kev tshaj xov xwm xws li dej hiav txwv thiab chav dej, xws li dej hiav txwv kav dej kav hauv lub marine kev lag luam.
- Alloy Steel
Chromium - molybdenum alloy steel: Muaj chromium thiab molybdenum, muab kev cia siab zoo - kub lub zog, thiab cov quav tawm. Feem ntau siv nyob rau hauv high - kub, siab {{}}}}}} Cov khoom siv hydrogenation cov khoom kub, uas tuaj yeem ua haujlwm ntawm qhov kub tshaj 550 degree.
Duplex Stainless Hlau: Tsim ntawm ob qho tib si Austenite thiab Ferrite kaujs, nws muab cov txiaj ntsig siab ntawm ob qho tib si, muab lub zog siab thiab zoo heev rau cov chloride kev ntxhov siab corrosion. Nws yog feem ntau siv nyob rau hauv kev nyuaj siab ib puag ncig xws li marine engineering thiab tshuaj lom neeg kev lag luam, xws li qub ntawm ntug platform roj.
Tsis - nws yog xim hlau
- Yas
Yas Polypropylene (PP): Muab cov tshuaj tiv thaiv corrosion zoo heev, qhov ceev tsis zoo, thiab rwb thaiv tsev zoo, tab sis tsis muaj kub kub tiv thaiv. Haum rau kev thauj cov corrosive media xws li cov kua qaub thiab alkalis ntawm qhov kub thiab txias dua lossis sib npaug li 90 degree, xws li cov kav dej me me hauv cov tshuaj thiab electroplating kev lag luam.
Polyvinyl chloride (PVC): Tus nqi qis, zoo tshaj plaws corrosion tsis kam, thiab cov kws kho mob zoo, tab sis tsuas yog qhov siab - kub tsis kam. Feem ntau siv hauv kev ua dej thiab tso dej, kev ua liaj ua teb i}}} dej nyob hauv cov tsev dej paug.
Chlorinated polyvinyl chloride (cpvc): Piv rau PVC, nws muaj kev txhim kho kub ua kom tau thiab tuaj yeem ua haujlwm ntawm cov sijhawm kub siab dua thaum muaj kev tswj hwm corrosion zoo. Kev siv hluav taws xob hauv kub thiab hluav taws kub ua haujlwm tau mus txog 100 degree.
Polytetrafluoroethylene (PTFE): Tsis tshua muaj qhov ruaj khov, tiv taus yuav luag txhua qhov tshuaj lom neeg, nrog tus kheej qis ntawm kev sib txhuam, tab sis kuj ua pov thawj qis dua zog thiab cov coefficient ntawm linear expansion. Nws yog feem ntau siv los ua cov khoom sib khi lossis ob sab hauv rau cov khoom siv li qub, xws li lorly forrosive kua nyiam zoo li aqua regia hauv kev lag luam tshuaj.
- Rooj ceramics
Decmom ceramics: Hardness, hnav zoo thiab corrosion tsis kam, tab sis kuj nkig thiab tsis muaj zog tiv thaiv cuam tshuam. Feem ntau siv nyob rau hauv me me- diam, qis} Cov ntaub ntawv tawm suab, xws li li qub rau cov fiber ntau}}}} nws muaj slurries hauv kev lag luam papermaking.
Engineering Ceramics: Xws li Alumina Ceramics thiab silicon carbide ceramics muaj cov cuab yeej muaj zog tshaj, thermal stability, thiab tshuaj stability piv rau ceramics. Lawv feem ntau siv nyob rau hauv kev ua haujlwm hnyav nrog kev ntsuas kub, siab tsim, muaj kev hnav hnyav, xws li muaj kev lag luam me me hauv kev lag luam metallurgical.
