Molybdenum yog ib qho kev hloov pauv hlau uas muaj qhov kub thiab txias thiab kev tiv thaiv corrosion uas muaj kev siv ntau yam lag luam xws li aerospace, nuclear zog thiab iav tsim. Ib qho ntawm cov khoom tseem ceeb ntawm kev siv molybdenum yog kev tsim cov molybdenum kub kub. Hauv tsab xov xwm no, peb ua tib zoo saib cov txheej txheem nyuaj ntawm kev npaj cov molybdenum rods uas kub kub, sib tham txog ntau theem kev koom tes thiab cov kev cov nyom uas tau ntsib.
Kev npaj ntawmhigh-temperature molybdenum pas nrigfeem ntau suav nrog ntau theem, los ntawm cov khoom siv raw khoom mus rau cov khoom kawg. Thawj kauj ruam yog mus yuav high-purity molybdenum hmoov ua raw khoom rau cov pas nrig. Lub purity ntawm cov hmoov ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab cov khoom siv thiab lub cev ntawm cov khoom kawg.
Cov kauj ruam tom ntej yog nias cov hmoov molybdenum mus rau hauv ib lub billet. Qhov no yog ua tiav los ntawm txias los yog kub nias, nyob ntawm seb yam khoom uas xav tau ntawm qhov khoob. Qhov khoob yog ces sintered ntawm qhov kub thiab txias kom nws lub zog thiab ceev. Sintering yog ib kauj ruam tseem ceeb raws li nws fuses cov hmoov hmoov ua ke los tsim cov khoom uas xav tau.
Tom qab sintering, cov dawb paug tau dhau los ua cov haujlwm ua haujlwm kom tau txais cov pas nrig geometry. Qhov no yuav suav nrog extrusion, dov, kos duab lossis lwm yam txheej txheem tsim. Lub hom phiaj ntawm kev ua haujlwm yog ua kom tiav qhov ntev thiab qhov chaw tiav thaum tuav cov khoom siv.
Ib qho ntawm cov teeb meem tseem ceeb hauv kev npaj cov kub kub molybdenum rods yog tiv thaiv oxidation thaum ua. Molybdenum tau yooj yim oxidized ntawm qhov kub thiab txias, uas tuaj yeem cuam tshuam rau nws cov khoom siv kho tshuab. Yog li ntawd, kev saib xyuas tshwj xeeb yuav tsum tau them rau kom ntseeg tau tias muaj cua sov lossis lub tshuab nqus tsev thaum lub sijhawm ua haujlwm sintering thiab molding.
Thaum kawg, cov pas nrig tau txais kev kuaj xyuas zoo kom ntseeg tau tias lawv ua tau raws li qhov xav tau tshwj xeeb. Qhov no suav nrog kev ntsuas qhov ntev, kev tshuaj xyuas saum npoo thiab kev ntsuas cov khoom siv. Cov pas nrig uas dhau qhov kev tshuaj ntsuam xyuas no suav hais tias muaj kev nyab xeeb rau kev siv ntau yam kev siv kub.
Nyob rau hauv cov ntsiab lus, kev npaj ntawm high-temperature molybdenum rods yog ib tug complex txheej txheem uas yuav tsum tau muaj meej tswj ntawm cov khoom xaiv, ua tej yam kev mob, thiab kev soj ntsuam zoo. Kev nkag siab txhua kauj ruam thiab daws cov teeb meem muaj peev xwm yog qhov tseem ceeb rau kev tsim cov molybdenum rods uas ua tau raws li qhov xav tau ntawm ntau yam kev siv kub.