Cov silicon carbide ntsuab thiab cov silicon carbide dub: Qhov sib txawv tob tshaj qhov xim
Hauv thaj chaw loj ntawm cov ntaub ntawv kev lag luam,silicon carbide ntsuabthiabdub silicon carbide Feem ntau hais ua ke. Ob qho tib si yog cov khoom siv abrasives tseem ceeb uas ua los ntawm kev kub siab smelting hauv cov cub tawg tiv taus nrog cov khoom siv raw xws li quartz xuab zeb thiab roj av coke, tab sis lawv qhov sib txawv ntau dua li qhov sib txawv ntawm cov xim ntawm qhov chaw. Los ntawm qhov sib txawv me me hauv cov khoom siv raw, mus rau qhov sib txawv ntawm cov yam ntxwv kev ua tau zoo, mus rau qhov sib txawv loj heev hauv cov xwm txheej siv, cov kev sib txawv no tau ua ke tsim lub luag haujlwm tshwj xeeb ntawm ob qho tib si hauv kev lag luam.
1 Qhov sib txawv ntawm cov khoom siv raw purity thiab cov qauv siv lead ua rau pom qhov sib txawv ntawm ob qho.
Ntsuab silicon carbideyog ua los ntawm roj av coke thiab quartz xuab zeb ua cov khoom tseem ceeb, thiab ntsev ntxiv rau kev ua kom zoo. Los ntawm cov txheej txheem no, cov ntsiab lus tsis huv raug txo qis mus rau qhov loj tshaj plaws, thiab cov siv lead ua yog lub kaw lus hexagonal ib txwm muaj nrog cov npoo ntse thiab ces kaum. Kev ua cov khoom siv raw ntawm cov dub silicon carbide yog qhov yooj yim, thiab tsis muaj ntsev ntxiv. Cov khoom tsis huv xws li hlau thiab silicon tshuav nyob rau hauv cov khoom siv raw ua rau nws cov khoom siv lead ua tsis sib xws hauv cov duab thiab puag ncig thiab blunt ntawm cov npoo thiab ces kaum.
2 Qhov sib txawv ntawm cov ntaub ntawv raw thiab cov qauv ua rau muaj cov yam ntxwv sib txawv ntawm ob qho.
Nyob rau hauv cov nqe lus ntawm qhov nyuaj, Mohs hardness ntawmsilicon carbide ntsuabyog li ntawm 9.5, thib ob tsuas yog pob zeb diamond, thiab tuaj yeem ua cov khoom siv siab hardness; dub silicon carbide yog li ntawm 9.0, nrog me ntsis qis hardness. Hais txog qhov ceev, ntsuab silicon carbide yog 3.20-3.25g / cm³, nrog rau cov qauv ntom; dub silicon carbide yog 3.10-3.15g / cm³, xoob me ntsis. Hais txog kev ua tau zoo, ntsuab silicon carbide muaj purity siab, thermal conductivity zoo, hluav taws xob conductivity thiab kub siab tiv taus, tab sis nws yog brittle thiab yooj yim tawg rau hauv cov npoo tshiab; dub silicon carbide muaj me ntsis qaug zog thermal conductivity thiab hluav taws xob conductivity, qis brittleness, thiab muaj zog dua particle impact resistance.
3 Qhov sib txawv ntawm kev ua tau zoo txiav txim siab qhov kev siv ntawm ob qho.
Cov silicon carbide ntsuab muajkev nyuaj siabthiab cov khoom ntse, thiab zoo ntawm kev ua cov khoom siv siab thiab qis toughness: hauv thaj chaw tsis yog hlau, nws tuaj yeem siv rau kev sib tsoo iav, txiav ceramic, semiconductor silicon wafers, thiab sapphire polishing; hauv kev ua hlau, nws muaj kev ua tau zoo heev rau cov ntaub ntawv xws li cemented carbide thiab hardened steel, thiab siv dav hauv cov khoom xws li sib tsoo log thiab txiav discs. Black silicon carbide feem ntau ua cov khoom siv qis-toughness, siab-toughness thiab tsim nyog rau kev ua cov hlau tsis yog ferrous thiab cov ntaub ntawv refractory xws li cam khwb cia hlau, tooj liab thiab txhuas. Hauv cov xwm txheej ntxhib xws li deburring castings thiab xeb tshem tawm ntawm hlau, nws tau dhau los ua kev xaiv dav hauv kev lag luam vim nws cov nqi tsim nyog.
Txawm hais tias ntsuab silicon carbide thiabdub silicon carbideVim tias lawv yog cov khoom siv silicon carbide, lawv cov khoom siv lub cev thiab tshuaj lom neeg thiab cov yam ntxwv ntawm daim ntawv thov sib txawv heev. Nrog rau kev tsim kho tshiab ntawm cov ntaub ntawv tshawb fawb thiab kev siv tshuab ua tiav, cov silicon carbide ntsuab thiab silicon carbide dub yuav tsum ua tiav kev nthuav dav ntawm daim ntawv thov hauv cov teb thev naus laus zis siab xws li kev tsim khoom semiconductor, kev sib tsoo precision, thiab lub zog tshiab, muab kev txhawb nqa cov khoom siv tseem ceeb rau kev txhim kho zoo ntawm kev lag luam niaj hnub.