Puas yog Monel yog titanium?
Monel yog thawj zaug siv nyob rau hauv ntau yam kev siv nyob rau hauv 1920s, tshwj xeeb tshaj yog nyob rau hauv lub tsim ntawm battleship Cheebtsam tom qab Ntiaj Teb Tsov Rog II, vim nws zoo heev tiv thaiv dej hiav txwv. Monel kuj tseem siv los ua cov khoom siv kho kom zoo nkauj. Nws feem ntau yog siv rau hauv chav ua noj dab dej, txav qhov chaw ntawm cov twj siv tooj dag, thiab cov hlua ntawm cov guitars thiab lwm yam twj paj nruag.
Qhov txawv ntawm Monel yog dab tsi?
Muaj peb yam tseem ceeb ntawm Monel alloys teev hauv qab no, txhua qhov muaj ntau yam hloov pauv:
Monel 400: Monel alloy muaj kev tiv thaiv zoo heev rau ntau tus neeg ua haujlwm corrosive, nrog rau cov dej hiav txwv thiab cov kua qaub uas muaj zog - txawm tias hydrofluoric acid. Nws yog ib qho tawv, muaj zog alloy uas tsuas yog ua haujlwm txias thiab tsis tuaj yeem kho cua sov kom ntxiv dag zog ntxiv. Monel 400 tuaj yeem ua tiav, tab sis muaj qee qhov kev sib tw. Lub alloy yog ua hauj lwm-hardened los ntawm cov cuab yeej txiav, yuav tsum tau ua tib zoo saib xyuas rau kev pub thiab ceev chaw raws li cov cuab yeej hnav.
Monel R{{0}}: Cov hlau no muaj tib yam li Monel 400, tshwj tsis yog muaj cov ntsiab lus sulfur me ntsis (los ntawm 0.024 txog 0.06%). Cov sulfur ntxiv ua raws li cov chip tawg los ntawm kev tsim cov nickel-tooj liab sulfide inclusions hauv cov khoom, muab R-405 machinability zoo dua li qib 400.
Monel K-500: Cov hlau no yog lub zog sib txawv ntawm Monel nrog qhov sib ntxiv ntawm me me ntawm txhuas thiab titanium rau cov qauv yooj yim. Nws muaj tag nrho cov txiaj ntsig ntawm tus qauv Monel 400 tab sis tau nce hardness thiab lub zog los ntawm kev kho cua sov los ntawm nag lossis daus hardening.
Cov ntawv thov ntawm Monel alloy yog dab tsi?
Monel alloy yog siv nyob rau hauv ntau yam kev siv uas yuav tsum tau muaj corrosion kuj thiab toughness. Yog li ntawd, nws yog feem ntau siv nyob rau hauv cov nram qab no hom ntawm cov cuab yeej nyob rau hauv lub marine thiab tshuaj ua lag luam:
kiv cua ncej
fastener
kub exchanger
txheej txheem nkoj
Qe
Txheej txheem kav
roj av tseem
twj thiab li qub
Kev lag luam ntsia hlau tshuab
Chains thiab cables
Dab tsi yog qhov zoo ntawm Monel alloy?
Cov npe hauv qab no yog qee qhov zoo ntawm Monel:
Corrosion Resistance: High corrosion resistant rau acids thiab alkalis, superior rau lwm yam corrosion resistant alloys xws li AISI 316 stainless hlau.
Formability: Ib qho yooj yim los tsim rau hauv ntau yam qauv profiles, xws li rods thiab hlab.
Solderability: tuaj yeem yooj yim soldered siv cov txheej txheem soldering.
Kev ntsuas kub tsis kam: Monel tuav nws lub zog dhau qhov kub ntawm qhov dav, los ntawm sub-zero mus txog 480 degree.
Cov kev txwv ntawm Monel alloy yog dab tsi?
Qee qhov tsis zoo ntawm Monel tau teev tseg hauv qab no:
Ua hauj lwm hardening: Thaum lub sij hawm machining txheej txheem, Monel hardens, ua tom qab txiav nyuaj dua thiab tseem ua rau kom ceev cov cuab yeej hnav. Monel R-405 yog tsim tshwj xeeb los txhim kho kev ua haujlwm zoo.
Pitting Corrosion: Txawm hais tias Monel tiv taus cov dej hiav txwv ceev ceev, nws muaj kev cuam tshuam rau pitting corrosion thaum raug dej hiav txwv qis rau lub sijhawm ntev.
Stress Corrosion Cracking: Monel K-500 yog qhov cuam tshuam rau kev ntxhov siab corrosion tawg.
Galvanic Corrosion: Monel yooj yim tsim cov galvanic hlwb thaum bolted rau hlau, uas ua rau kom corrosion.
Tus nqi siab: Monel yog cov nqi siab tshaj plaws thiab yuav tsum tsuas yog siv rau hauv cov xwm txheej uas cov khoom pheej yig dua tsis ua.
