Puas yog qis alloy steel xeb resistant?
Taw qhia:
Hlau yog ib yam khoom tseem ceeb siv nyob rau hauv ntau yam lag luam vim nws lub zog, durability, thiab ntau lwm yam khoom uas xav tau. Txawm li cas los xij, ib qho ntawm cov teeb meem tseem ceeb ntawm cov hlau yog nws qhov kev cuam tshuam rau xeb, uas tuaj yeem cuam tshuam nws cov qauv kev ncaj ncees. Txhawm rau kov yeej qhov teeb meem no, cov hlau tsis tshua muaj hlau, tseem hu ua corrosion-resistant steel, tau tsim los muab kev txhim kho tiv thaiv xeb tsim. Hauv tsab xov xwm no, peb yuav tshawb txog cov yam ntxwv, cov txiaj ntsig, thiab kev siv ntawm cov hlau tsis tshua muaj hlau kom ntxaws.
Dab tsi yog qhov qis alloy steel?
Cov hlau tsis tshua muaj hlau yog hais txog ib hom hlau uas muaj me me ntawm cov ntsiab lus alloying, feem ntau tsawg dua 10% los ntawm qhov hnyav, xws li chromium, npib tsib xee, molybdenum, lossis tooj liab. Cov ntsiab lus alloying no tau ntxiv los txhim kho cov khoom tshwj xeeb ntawm cov hlau, suav nrog xeb kuj. Cov ntsiab lus tsis tshua muaj alloy distinguishes nws los ntawm high alloy steels uas muaj ib tug ntau dua concentration ntawm alloying ntsiab.
Cov yam ntxwv ntawm cov hlau tsis tshua muaj hlau:
1. Kev tiv thaiv xeb: Qhov zoo tshaj plaws ntawm cov hlau tsis tshua muaj hlau yog nws txoj kev txhim kho tiv thaiv xeb tsim. Cov ntsiab lus alloying hauv cov hlau tsis tshua muaj hlau tsim cov txheej txheem tiv thaiv ntawm qhov chaw, uas ua raws li kev tiv thaiv kev ya raws, oxygen, thiab lwm yam corrosive. Cov txheej tiv thaiv no feem ntau hu ua "passive film" thiab pab tiv thaiv cov hlau los ntawm corroding.
2. Lub zog siab: Cov hlau tsis tshua muaj hlau tuav lub zog zoo ib yam li cov hlau tsis tu ncua, ua rau nws haum rau ntau yam kev siv. Qhov sib ntxiv ntawm cov ntsiab lus alloying pab txhim kho cov khoom siv kho tshuab yam tsis muaj kev cuam tshuam rau lub zog.
3. Toughness thiab ductility: Tsawg alloy steels tuav zoo heev toughness thiab ductility, cia lawv tiv taus hnyav loads thiab deformation tsis muaj puas. Qhov no ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau kev tiv thaiv kev cuam tshuam lossis kev poob siab.
4. Tus nqi zoo: Piv rau cov hlau alloy siab, cov hlau tsis tshua muaj hlau feem ntau yog cov nqi zoo dua vim lawv cov ntsiab lus qis alloy. Qhov no ua rau lawv xaiv rau ntau daim ntawv thov uas tus nqi yog qhov tseem ceeb.
5. Thaum tshav kub kub tsis kam: Qee cov hlau tsis tshua muaj hlau muaj qhov ua tau zoo thaum tshav kub kub, ua rau lawv haum rau kev siv kub. Cov hlau no tuaj yeem tswj hwm lawv cov khoom siv kho tshuab txawm tias qhov kub siab, ua rau lawv zoo tagnrho rau kev siv hauv kev lag luam xws li aerospace thiab lub zog tsim hluav taws xob.
Cov txiaj ntsig thiab kev siv ntawm cov hlau tsis tshua muaj hlau:
1. Kev tsim kho kev lag luam: Cov hlau tsis tshua muaj hlau pom dav siv hauv kev tsim kho kev lag luam vim lawv lub zog siab thiab xeb tsis kam. Lawv feem ntau ua haujlwm nyob rau hauv kev tsim cov choj, cov tsev, thiab lwm yam khoom raug cuam tshuam rau ib puag ncig hnyav.
2. Automotive kev lag luam: Lub tsheb sector feem ntau siv cov hlau tsis tshua muaj hlau rau kev tsim khoom uas yuav tsum tau muaj zog thiab corrosion kuj. Cov hlau no yog siv rau hauv kev tsim cov chassis, cov khoom raug tshem tawm, thiab cov tshuab tso pa, thiab lwm yam.
3. Kev lag luam roj thiab roj: Cov hlau tsis tshua muaj hlau yog dav siv hauv kev lag luam roj thiab roj, uas cov cuab yeej siv thiab cov qauv raug cuam tshuam rau qhov chaw muaj corrosive heev. Cov kav dej, li qub, thiab cov tso tsheb hlau luam ua los ntawm cov hlau tsis tshua muaj hlau tuaj yeem tiv taus qhov hnyav thiab yuav tsum tau saib xyuas tsawg.
4. Kev siv dej hiav txwv: Kev lag luam marine feem ntau tso siab rau cov hlau tsis tshua muaj hlau rau kev tsim cov nkoj, cov qauv sab nrauv, thiab cov khoom siv hauv hiav txwv. Qhov zoo tshaj plaws xeb kuj ntawm cov hlau tsis tshua muaj hlau ua kom lub neej ntev thiab kev ntseeg tau ntawm cov qauv no nyob rau hauv ib puag ncig corrosive marine.
5. Kev tsim hluav taws xob: Cov hlau tsis tshua muaj hlau feem ntau yog siv rau hauv cov chaw tsim hluav taws xob, tshwj xeeb tshaj yog nyob rau hauv boilers thiab turbines, qhov chaw uas lawv raug kub thiab chav. Lub tshav kub tsis kam thiab xeb tsis kam ntawm cov hlau tsis tshua muaj hlau ua rau lawv haum rau cov kev thov no.
Xaus:
Tsawg alloy steel muab kev daws teeb meem zoo rau cov teeb meem ntawm xeb tsim hauv cov hlau. Los ntawm kev sib ntxiv ntawm cov ntsiab lus alloying, cov hlau tsis tshua muaj hlau muaj kev txhim kho xeb, lub zog siab, toughness, thiab ductility. Nws pom cov ntawv thov hauv ntau yam kev lag luam xws li kev tsim kho, tsheb, roj thiab roj, dej hiav txwv, thiab kev tsim hluav taws xob. Tus nqi-zoo thiab ntau yam ntawm cov hlau tsis tshua muaj hlau ua rau nws yog qhov kev xaiv nrov rau ntau yam kev siv thiab siv tshuab. Nrog rau kev tshawb fawb thiab kev tsim kho tsis tu ncua, kev nce qib ntxiv hauv cov hlau tsis tshua muaj hlau yuav tsum tau ua, ua rau muaj kev xeb zoo dua thiab txhim kho kev ua tau zoo hauv ntau qhov chaw nyuaj.
