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

Atmospheric siab sintered silicon carbide tsis yog tsuas yog siv los ua ib qho abrasive, tab sis ntau dua li cov khoom siv tshiab, thiab siv dav hauv cov khoom siv high-tech, xws li ceramics ua los ntawm cov ntaub ntawv silicon carbide. Yog li dab tsi yog rau qhov zoo ntawm atmospheric siab sintering silicon carbide thiab daim ntawv thov ntawm silicon carbide ceramics?

Rau qhov zoo ntawm atmospheric siab sintered silicon carbide cov ntaub ntawv:

1. Tsawg ceev

Cov khoom siv silicon carbide muaj qhov ntom ntom dua li hlau, ua rau cov cuab yeej sib zog.

2. Corrosion kuj

Silicon carbide cov ntaub ntawv muaj lub siab melting point, tshuaj inertia, thermal shock kuj, silicon carbide yog siv rau hauv abrasives, ceramic kilns, silicon carbide blanks, yuav siv tau nyob rau hauv smelting thiab smelting kev lag luam nrog ntsug cylinder distillation rauv, cib, txhuas electrolytic cell hauv ob sab phlu. , tungsten, cub me me thiab lwm yam khoom siv silicon carbide ceramic.

3, kub kub, thermal expansion coefficient yog txo

Cov khoom siv silicone carbide yog tsim los ntawm qhov kub thiab txias. Hauv qee qhov chaw kub kub, cov khoom siv uas yuav tsum tau ua kom muaj zog thiab ua tiav qhov tseeb uas silicon carbide ceramics tuaj yeem ua tiav. Qhov kub siab ntawm silicon carbide yog li 800, thiab qhov kub ntawm cov hlau tsuas yog 250. Rough xam, qhov nruab nrab thermal expansion coefficient ntawm silicon carbide nyob rau hauv thaj tsam ntawm 25 ~ 1400 yog 4.10-6 / C. Lub thermal expansion coefficient ntawm silicon carbide yog ntsuas, thiab cov txiaj ntsig tau pom tias tus nqi tsawg dua li ntawm lwm cov khoom abrasives thiab cov khoom kub kub. Sintered silicon carbide nyob rau hauv atmospheric siab

4, siab thermal conductivity

Lub thermal conductivity ntawm silicon carbide cov ntaub ntawv yog siab, uas yog ib qho tseem ceeb feature ntawm lub cev khoom ntawm silicon carbide. Lub thermal conductivity ntawm silicon carbide yog ntau dua li ntawm lwm yam refractories thiab abrades, txog 4 npaug ntawm corundum. Silicon carbide muaj cov coefficient tsawg ntawm thermal expansion thiab siab thermal conductivity, yog li lub workpiece yuav raug thermal stress tsawg thaum cua sov thiab txias. Qhov no yog vim li cas SiC Cheebtsam tshwj xeeb yog tiv taus kev poob siab.

5, siab mechanical zog, zoo rigidity

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

6, siab hardness thiab hnav tsis kam

Lub hardness ntawm silicon carbide cov ntaub ntawv yog siab heev, thiab hardness ntawm Moss kis yog 9.2 ~ 9.6, thib ob tsuas yog pob zeb diamond thiab tungsten carbide. Piv nrog rau cov khoom siv hlau hlau, nws muab siab hardness, tsis tshua muaj coefficient ntawm kev sib txhuam, kuj tsis tshua muaj kev sib txhuam, me me nto roughness thiab zoo hnav tsis muaj lubrication. Tsis tas li ntawd, nws muaj peev xwm tiv taus cov khoom siv sab nraud, txhim kho qhov kam rau ua rau saum npoo. Sintered silicon carbide nyob rau hauv atmospheric siab

Daim ntawv thov ntawm atmospheric siab sintered silicon carbide ceramics

1, silicon carbide khoom tsim tshwj xeeb ceramics

Cov khoom siv silicon carbide yog cov khoom siv siab hardness thiab tsis tshua muaj nqi, uas tuaj yeem tsim cov khoom siv silicon carbide, xws li silicon carbide seals, silicon carbide tes tsho, silicon carbide mos txwv daim hlau, silicon carbide profiles, thiab lwm yam., uas tuaj yeem siv rau cov tshuab sealing thiab ntau yam twj. Sintered silicon carbide nyob rau hauv atmospheric siab

2, zirconia cov khoom tsim tshwj xeeb ceramics

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