Tantalum, nws cov alloys thiab kev siv

Tantalum lub siab ntev rau cov ntsiab lus interstitial thiab tsim nyog modulus ntawm elasticity ua rau nws tsis tshua muaj neeg ntxim nyiam raws li lub hauv paus ntsiab lus rau alloys. Tantalum kuj yog ib qho yooj yim kom paub txog inert roj tungsten arc vuam (GTA), yog li nws tsim nyog rau kev tsim khoom ntawm ntau yam khoom siv tshuaj, ua si nws cov corrosion kuj. Xws li kev tsim khoom ntawm ntau yam khoom siv hluav taws xob sib txawv, snorkels, condenser tubes, txias tub thiab plug-in heaters, xws li Cabot tsim cov qauv specifications rau 1.2 m × 3.7 m × 0.9 hli tantalum ntawv tau ua los ntawm cov txheej txheem kev sib tsoo tawg rau hauv cov hlau, tooj liab thiab txhuas hauv ob sab phlu, nrog rau cov khoom siv tantalum no los tsim cov khoom loj, cov khoom siv tshuaj pheej yig. Qhov kev sib txuas hu ua tawg feem ntau yog hu ua tawg molding, tawg vuam. Qhov no yog kev siv cov khoom tawg nyob rau lub sijhawm luv luv los tso tawm lub zog siab rau cov hlau sib txuas lossis cov txheej txheem ua haujlwm, tuaj yeem pom tau ntawm cov khoom siv hauv paus thiab cladding (npog) txheej ntawm thaj tsam loj ntawm vuam lossis sib xyaw, yog ua si. tus nqi ntawm cov khoom siv hauv paus yog tus nqi qis, cladding kov-resistant, kub tsis kam thiab lwm yam tshwj xeeb ntawm txoj kev zoo. Tsis tas li ntawd, qee cov tshuaj tiv thaiv kub kub nyob rau hauv lub tshuab nqus tsev, lub melting ntawm iav tshwj xeeb kuj feem ntau nqa tawm nyob rau hauv lub tantalum crucible. Tantalum kuj tseem tiv taus corrosion ntawm qee cov kua hlau, rau kev sib cuag nrog kua sodium ntawm 1375 degree.

Tantalum alloying los yog tantalum-based alloy npaj feem ntau yog ua los ntawm cov hluav taws xob hluav taws xob hluav taws xob, txhawm rau kom tau txais cov khoom sib xws ntawm cov khoom siv hluav taws xob hauv hluav taws xob hluav taws xob tom qab melting thiab purification, tab sis kuj nqus arc remelting (VAR). Txhua Tantalum thiab Tantalum alloys tau ua tiav hauv EB rauv, nrog lossis tsis muaj VAR remelting nyob ntawm daim ntawv thov.

Molybdenum alloys muaj qhov qis tshaj qhov hloov pauv qhov kub thiab txias (-196 degree), qhov kub thiab txias plasticity, tsis tshua muaj kev sib zog ua haujlwm, thiab lub zog kub kub zoo heev, ua rau lawv cov khoom siv zoo tagnrho rau kev ua haujlwm ntawm 1600-1800 degree. Tam sim no Ta-W alloys muaj nyob rau hauv ntau yam ntaub ntawv, xws li tantalum thiab tantalum. Nyob rau hauv tam sim no tau tsim Ta-W thiab Ta-Nb ob alloy system ntawm cov ntaub ntawv, feem ntau yog siv nyob rau hauv lub tsim ntawm aviation aviation kev lag luam thiab chaw nuclear fais fab system qhov chaw.