Cov yam ntxwv ntawm Nickel thiab Nickel Alloys
Feem ntau, npib tsib xee siv tsis yog cov hlau sib cais tab sis ua cov hlau nrog lwm cov hlau. Feem ntau yog cov alloys nrog titanium, aluminium, molybdenum, tooj liab thiab chromium ua cov ntsiab lus ntxiv. Nickel alloys muab faib ua acid-resistant alloys thiab kub-resistant alloys. Hauv tsab xov xwm no, kuv yuav tham txog cov alloys ntawm cov hlau no kom ntxaws thiab lawv qhov cuam tshuam rau cov khoom ntawm cov khoom kawg.
Acid resistant
Cov pab pawg no ntawm nickel alloys suav nrog cov tooj liab, chromium, tungsten thiab molybdenum. Cov alloys no tiv taus qhov hnyav oxidizing thiab tsis-oxidizing ib puag ncig.
Nickel thiab tooj liab
Copper-nickel alloy (Monel) muaj zog tiv thaiv corrosion, siab tensile lub zog tsis muaj zog thiab zoo heev ductility nyob rau hauv txawv kub tej yam kev mob. Yog li ntawd, nws tau nquag siv hauv kev lag luam hluav taws xob engineering, tshuaj lom neeg kev lag luam, thiab hauv kev tsim cov khoom siv nkoj nkoj. Cov hlau no tseem siv tau rau hauv kev tsim kho ntawm cov tshuab hluav taws xob nuclear. Ib qho ntawm feem ntau alloys yog Monel 400.
Nickel vs. Chromium thiab Hlau
Inconel yog ib qho hlau uas muaj chromium thiab hlau ua alloying tshuaj. Cov hlau uas tshwm sim yog siv los ua cov khoom siv uas ua haujlwm ntawm qhov kub thiab txias. Txawm li cas los xij, nws tsis pom zoo siv rau qhov chaw raug kub siab tshaj 850 degree.
Nickel thiab Molybdenum
Cov hlau yog ua los ntawm npib tsib xee, hlau thiab molybdenum thiab yog siv rau casting txhua yam ntsiab lus raug hydrochloric acid thiab kub txog li 70 degree. Cov hlau yog resistant rau corrosion. Cov no suav nrog hom ХН65MВ thiab nws cov analog - Hastelloy C276.
Nickel thiab hlau sib txawv
Nickel alloy yog cov hlau uas nws cov khoom tseem ceeb yog npib tsib xee, chromium, hlau, molybdenum, tooj liab thiab titanium. Nws tuaj yeem siv los ua cov thawv ntim rau khaws cov kua dej qab ntsev xws li sulfuric acid thiab phosphoric acid.
kub resistant
Ntxiv cov ntsiab lus xws li titanium, aluminium, molybdenum, tungsten, niobium, rhenium, ruthenium thiab strontium rau cov tshuaj nickel tuaj yeem ua rau nws cov cua sov ua haujlwm. Lub alloy muaj lub zog mus sij hawm ntev, zoo heev manufacturability thiab kub tsis kam. Cov khoom ntawm ib qho hlau yog nyob ntawm qhov feem pua ntawm ib qho hlau hauv qhov muaj pes tsawg leeg.
Piv txwv li, Inconel 600 alloy yog siv los ua roj turbine qhov chaw. Lawv tuaj yeem tiv taus qhov kub txog li 750 degree thiab tiv taus oxidation thiab hlau qaug zog. Inconel 718 yog tsim rau kev tsim cov rotor hniav rau cov roj turbine xyaw nrog kev ua haujlwm kub ntawm 800-850 degree . Tom qab kev kho cua sov, lub alloy tsis rhiab rau notching.
