Rau qhov zoo ntawm atmospheric pressure sintered silicon carbide thiab daim ntawv thov ntawm silicon carbide ceramics

Cov silicon carbide sintered uas muaj cua sov tsis yog siv los ua cov khoom siv abrasive xwb, tab sis siv ntau dua li cov khoom siv tshiab, thiab siv dav hauv cov khoom siv high-tech, xws li cov khoom siv ceramics ua los ntawm silicon carbide. Yog li dab tsi yog rau qhov zoo ntawm kev siv silicon carbide sintering uas muaj cua sov thiab kev siv silicon carbide ceramics?

Rau qhov zoo ntawm cov khoom siv sintered silicon carbide uas muaj atmospheric pressure:

1. Qhov ceev tsawg

Cov khoom siv silicon carbide muaj qhov ceev qis dua li hlau, ua rau lub cuab yeej sib dua.

2. Kev tiv thaiv xeb

Cov khoom siv silicon carbide muaj qhov melting point siab, tshuaj inertia, thermal shock tsis kam, silicon carbide siv rau hauv abrasives, ceramic kilns, silicon carbide blanks, tuaj yeem siv rau hauv kev lag luam smelting thiab smelting nrog lub tog raj kheej ntsug distillation rauv, cib, txhuas electrolytic cell lining, tungsten, me me rauv thiab lwm yam silicon carbide ceramic khoom.

3, kub siab, coefficient ntawm thermal expansion txo qis

Cov khoom siv silicon carbide yog tsim tawm ntawm qhov kub siab. Hauv qee qhov chaw kub siab, cov ntaub ntawv uas xav tau lub zog ua tiav thiab kev ua tiav uas silicon carbide ceramics tuaj yeem ua tiav yog qhov yuav tsum tau ua. Qhov kub siab ntawm silicon carbide yog li 800, thiab qhov kub ntawm hlau tsuas yog 250. Kev xam suav tsis meej, qhov nruab nrab thermal expansion coefficient ntawm silicon carbide hauv qhov ntau ntawm 25 ~ 1400 yog 4.10-6 / C. Qhov thermal expansion coefficient ntawm silicon carbide raug ntsuas, thiab cov txiaj ntsig qhia tau tias qhov ntau me dua li lwm cov khoom siv abrasives thiab cov ntaub ntawv kub siab. Sintered silicon carbide nyob rau hauv atmospheric siab

4, kev ua haujlwm thermal siab

Cov khoom siv silicon carbide thermal conductivity siab, uas yog lwm yam tseem ceeb ntawm cov khoom siv lub cev ntawm silicon carbide. Cov thermal conductivity ntawm silicon carbide yog ntau dua li lwm cov refractories thiab abrades, kwv yees li 4 npaug ntawm corundum. Silicon carbide muaj cov coefficient qis ntawm thermal expansion thiab thermal conductivity siab, yog li cov workpiece yuav raug kev ntxhov siab thermal tsawg dua thaum lub sijhawm cua sov thiab txias. Qhov no yog vim li cas SiC Cheebtsam tshwj xeeb tiv taus kev poob siab.

5, lub zog kho tshuab siab, zoo nruj

Lub zog kho tshuab ntawm cov khoom siv silicon carbide yog siab heev, tiv thaiv cov khoom deformation. Silicon carbide muaj lub zog kho tshuab siab dua li corundum.

6, siab hardness thiab hnav tsis kam

Qhov nyuaj ntawm cov khoom siv silicon carbide yog siab heev, thiab qhov nyuaj ntawm Moss gap yog 9.2 ~ 9.6, thib ob tsuas yog pob zeb diamond thiab tungsten carbide. Piv nrog cov khoom siv hlau, nws muab qhov nyuaj siab, coefficient qis ntawm kev sib txhuam, kev sib txhuam qis, qhov roughness me me thiab kev tiv thaiv zoo tsis muaj lubrication. Tsis tas li ntawd, nws tiv taus cov tshuaj sab nraud, txhim kho qhov kev kam rau ntawm qhov chaw. Sintered silicon carbide nyob rau hauv atmospheric siab

Daim ntawv thov ntawm atmospheric pressure sintered silicon carbide ceramics

1, silicon carbide khoom tsim cov khoom siv tshwj xeeb

Cov khoom siv silicon carbide yog cov khoom siv uas muaj qhov nyuaj siab thiab tus nqi qis, uas tuaj yeem tsim cov khoom silicon carbide, xws li silicon carbide seals, silicon carbide tes tsho, silicon carbide bulletproof phaj, silicon carbide profiles, thiab lwm yam, uas tuaj yeem siv rau cov khoom siv kho tshuab thiab ntau yam twj tso kua mis. Sintered silicon carbide nyob rau hauv atmospheric siab

2, zirconia khoom tsim cov khoom siv tshwj xeeb

Zirconia ceramic muaj cov ionic conductivity siab, tshuaj lom neeg ruaj khov thiab cov qauv ruaj khov, thiab tau dhau los ua cov khoom siv electrolyte uas tau kawm thiab siv dav. Los ntawm kev txhim kho cov txheej txheem tsim cov zirconia electrolyte zaj duab xis, txo qhov kub ua haujlwm thiab tus nqi tsim khoom ntawm cov ntaub ntawv no, thiab kev siv zog kom ua tiav kev lag luam kuj yog ib qho kev taw qhia tseem ceeb ntawm kev tshawb fawb yav tom ntej.