Refractory tungsten hlau thiab tungsten alloys muaj qhov zoo ntawm qhov kub thiab txias stability, siab tsis kam mus rau electron migration thiab siab electron emission coefficient. High-purity tungsten thiab tungsten alloy lub hom phiaj yog tsuas yog siv los tsim cov rooj vag electrodes, kev sib txuas thaiv, diffusion barrier txheej ntawm semiconductor integrated circuits. Lawv muaj cov kev xav tau siab heev ntawm purity, impurity cov ntsiab lus, qhov ntom ntom, qhov loj me thiab cov qauv zoo ntawm cov khoom siv. Cia peb saib cov yam tseem ceeb uas cuam tshuam rau kev npaj ntawm high-purity tungsten phiajby Rich Special Material Co., Ltd.
I. Cov nyhuv ntawm sintering kub
Txoj kev tsim ntawm tungsten lub hom phiaj embryo feem ntau yog ua los ntawm txias isostatic siab. Lub tungsten grain yuav loj hlob thaum sintering. Kev loj hlob ntawm tungsten grain yuav ua rau qhov sib txawv ntawm cov ciam teb siv lead ua, yog li ua kom qhov ceev ntawm tungsten lub hom phiaj. Nrog rau qhov nce ntawm sintering lub sij hawm, qhov ceev ntawm tungsten lub hom phiaj slows down maj mam. Qhov laj thawj tseem ceeb yog qhov zoo ntawm cov khoom siv tungsten tsis tau hloov pauv ntau tom qab ob peb txheej txheem sintering. Vim hais tias feem ntau ntawm cov voids nyob rau hauv lub siv lead ua ciam teb yog sau los ntawm tungsten crystals, tag nrho qhov loj me me hloov pauv ntawm tungsten lub hom phiaj yog me me heev tom qab txhua txoj kev sintering, uas ua rau muaj qhov chaw tsawg rau tungsten lub hom phiaj kom ceev. Raws li sintering tiav, cov nplej loj tungsten tau ntim rau hauv qhov khoob, ua rau lub hom phiaj denser nrog me me.
2. Cov nyhuv ntawmhnoj preservation Sijhawm
Nyob rau tib lub sintering kub, lub compactness ntawm tungsten lub hom phiaj cov khoom yog txhim kho nrog lub sij hawm ntawm sintering. Nrog rau qhov nce ntawm sintering lub sij hawm, lub tungsten grain loj nce, thiab nrog rau ncua sij hawm sintering, lub grain loj loj hlob yam tseem ceeb slows down. Qhov no qhia tau hais tias nce lub sij hawm sintering tuaj yeem txhim kho kev ua haujlwm ntawm tungsten lub hom phiaj.
3. Qhov cuam tshuam ntawm Rolling ntawm Lub Hom Phiaj Pkev ua haujlwm
Txhawm rau txhim kho qhov ceev ntawm tungsten lub hom phiaj cov ntaub ntawv thiab tau txais cov qauv ua ntawm tungsten phiaj cov ntaub ntawv, nruab nrab kub dov ntawm tungsten phiaj cov ntaub ntawv yuav tsum tau nqa tawm hauv qab qhov kub ntawm recrystallization. Thaum lub dov kub ntawm lub hom phiaj dawb paug yog siab, cov qauv fiber ntau ntawm lub hom phiaj dawb paug yog thicker, whereas lub hom phiaj dawb paug yog finer. Thaum qhov kub dov tawm los yog siab dua 95%. Txawm hais tias qhov sib txawv ntawm cov qauv fiber ntau tshwm sim los ntawm qhov sib txawv sintering thawj cov nplej los yog dov kub yuav raug tshem tawm, ntau homogeneous fiber ntau yuav raug tsim nyob rau hauv lub hom phiaj, yog li qhov ua tau zoo dua ntawm qhov sov dov, qhov kev ua tau zoo ntawm lub hom phiaj.
Post lub sij hawm: May-05-2022