Qhov zoo thiab qhov tsis zoo ntawm Monel alloy
Monel alloys feem ntau siv rau hauv cov khoom siv tshuaj cog qoob loo vim tias lawv muaj peev xwm tiv taus cov tshuaj corrosion. Lawv kuj tau siv hauv kev lag luam aerospace. Cov khoom tsim los ntawm Monel (tshwj xeeb tshaj yog ua ntej lub advent ntawm stainless hlau) muaj xws li kub exchangers, ntsia hlau tshuab khoom, cua twj, kav dej, roj thiab dej tso tsheb hlau luam, chav ua noj dab dej thiab ru tsev.
Qhov zoo ntawm Monel alloy:
Muaj ntau ntau Monel alloys xaiv los ntawm. Ua ntej xyoo 1950, lawv yog qhov "mus-mus" kev xaiv rau ntau qhov kev lag luam tseem ceeb. Nws tuaj yeem ua tau yooj yim welded, brazed thiab brazed. Qhov no yog vim nws:
High corrosion kuj rau acids thiab alkalis;
High mechanical zog;
Zoo ductility (yooj yim zoo thiab daim ntawv);
Alkali tiv taus;
Tus nqi kuj tsawg;
Muaj nyob rau hauv ntau hom xws li kub thiab txias dov ntawv, phaj, bar, pas nrig thiab raj
Txaus nyiam tsos thiab tiav, nrog rau grey-ntsuab patina zoo ib yam li tooj liab;
Qhov tsis zoo ntawm Monel:
Thaum Monel muaj ntau qhov zoo, nws nyob deb ntawm cov hlau zoo meej. Lub machinability ntawm cov alloys no tsis zoo vim tias lawv nyiam ua haujlwm hnyav sai. tseem ceeb tshaj:
Txawm hais tias qhov kev hloov pauv ntawm qhov chaw nyob rau hauv daim ntawv ntawm patina tuaj yeem txaus nyiam nyob rau qee kis, nws tuaj yeem ua teeb meem hauv lwm qhov xwm txheej.
Txawm hais tias nws yog corrosion-resistant, nws tuaj yeem ua pitted yog tias raug dej ntsev.
Thaum nws yog corrosion-resistant nyob rau hauv ntau lub sijhawm, nws tuaj yeem corrode thaum raug rau tej yam khoom. Piv txwv li, nitric oxide, nitrous acid, sulfur dioxide thiab hypochlorite yog tag nrho cov khoom uas tuaj yeem corrode Monel.
Lub xub ntiag ntawm Monel tuaj yeem ua rau galvanic corrosion. Hauv lwm lo lus, yog tias koj siv txhuas, zinc lossis hlau ua ib qho fastener rau Monel thiab tom qab ntawd nthuav tawm rau qee yam xwm txheej, cov hlau fastener yuav corrode sai.
