Lub tshuab hluav taws xob cua sov ua kom sov lub cev yog lub xov hluav taws xob cua sov, thiab cov qhov tseem ceeb yog cov hlau chromium aluminium thiab nickel chromium alloy hlau. Cov hlau-chromium-aluminium yog qhov pheej yig, thiab cov hlau-chromium-aluminium alloy hlau yog feem ntau siv nyob rau hauv hluav taws xob cua sov kav uas tsis tau qhia tshwj xeeb Nickel-chromium alloy hlau yog kim kim. Qhov sib txawv ntawm ob: qhov ua haujlwm kub ntawm cov hlau-chromium-aluminium alloy khoom tuaj yeem ncav cuag 1400° C, uas yog txaus kom tau raws li qhov xav tau ntawm hluav taws xob cua sov tub raj. Txawm li cas los xij, nickel-chromium hlau muaj qhov hloov tau yooj yim thiab zoo oxidation tsis kam, thiab cov hlau-chromium-aluminium hlau yog tus txhuam zoo. Txij ntawm qhov no, peb tuaj yeem tau txais ib qho ntawm cov qauv kev teeb tsa ntawm hluav taws xob cua sov tub raj.
