Ib txoj kev tsim khoom tshiab rau high-puritymolybdenum electrodestau qhia. Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
(1) Ua ntej, nias molybdenum hmoov (mass purity: 99.9%) nrog ib tug particle loj ntawm 2.5μm-4.0μm thiab cov pa oxygen loj ntawm 400ppm-600ppm rau hauv molybdenum billet. Lub molybdenum dawb paug yog ces muab tso rau hauv ib tug kuj sintering rauv thiab pre-sintered nyob rau hauv kev tiv thaiv ntawm lub tshuab nqus tsev los yog txo cua sov (hydrogen).
Cov txheej txheem ua ntej sintering yog raws li nram no: thawj pre-sinter los ntawm chav tsev kub mus rau 1200 degree rau 4 teev, ces sov so, thiab ces nce qhov kub ntawm 1200 degree mus rau 1350 degree tshaj 1h-2h. , ua kom sov li 2h -4h.
(2) Muab lub pre-sintered molybdenum billet nyob rau hauv kauj ruam (1) rau hauv nruab nrab zaus induction rauv thiab sinter nws nyob rau hauv hydrogen raws li ib tug tiv thaiv cua kom tau ib tug molybdenum electrode nrog ib tug loj purity ntau tshaj 99.99%.
Cov txheej txheem sintering yog raws li nram no: ua ntej, qhov kub yog tsa rau sintering, los ntawm chav tsev kub rau 1h -2h mus rau 1500 degree, thiab khaws cia ntawm kub rau 1h-2h. Tom qab ntawd kub ntawm 1500 degree rau 1h-2h rau 1750 degree, khaws cia rau 2h{10}}h, ces kub ntawm 1750 degree rau 1h-2h txog 1800 degree -1950 degree. C, ua kom sov li 4h -6h.
Piv nrog cov thev naus laus zis uas twb muaj lawm, qhov zoo ntawm txoj kev tsim khoom no yog:
(1) Cov pa roj carbon thiab oxygen cov ntsiab lus ntawm cov khoom yog tsawg dua 10ppm.
(2) Kev ua haujlwm yog qhov yooj yim, tus nqi tsim khoom tsawg, kev ua haujlwm siab ntau, cov hlau poob me me, tag nrho cov txiaj ntsig siab, thiab ntau cov electrodes ntawm cov khoom sib txawv tuaj yeem tsim tau yooj yim thiab sai.