Lus piav qhia luv luv:

Lub molybdenum (TZM) piercing mandrel yog ib qho tseem ceeb tivthaiv siv nyob rau hauv high kub steelmaking txheej txheem. Nws feem ntau yog ua los ntawm molybdenum alloy (TZM alloy), uas muaj qhov kub thiab txias zog thiab oxidation tsis kam. Lub tho mandrel yog tsuas yog siv nyob rau hauv lub blast furnace steelmaking txheej txheem los tshuab oxygen rau hauv lub cub tawg los txhawb oxidation thiab sib tov ntawm cov hlau. Lub siab-kub stability thiab corrosion kuj ntawm molybdenum (TZM) piercing mandrels ua rau lawv yog ib qho tseem ceeb ntawm cov txheej txheem steelmaking.