Khoom Description

Silicon carbide cibyog raug rho tawm haujlwm nrog silicon carbide ua cov khoom siv tseem ceeb thiab silicon oxide raws li cov ntaub ntawv ntawm qhov kub thiab txias ntawm 1400 degree. Silicon carbide cib yog tus cwj pwm los ntawm kev nthuav dav coefficient ntawm qhov kub thiab txias, tsis yooj yim rau deformation, zoo thermal conductivity, kub poob siab thiab kub tsis kam. Txawm nyob rau hauv qhov kub siab ntev - siv sij hawm yuav tsis soften, thiab acid, alkali resistant chav pw. Cov khoom siv carbon tau dav siv hauv cov cua kub kub hauv ob sab phlu (kub hauv qab, lub tog raj kheej, lub tshuab ua kom sov, thiab lwm yam), melting ntawm non-ferrous hlau rauv hauv ob sab phlu.

Silicon carbide cibyog cov khoom siv refractory nrog hluav taws tsis kam thiab hnav tsis kam tom qab kub kub tua. Qhov ntim ceev ntawm silicon carbide cib yog ncaj qha ntsig txog cov khoom ntawm silicon carbide cib. Feem ntau, qhov loj dua qhov sib piv ntawm silicon carbide cib, qhov me me ntawm qhov porosity, ntau dua lub zog compressive, qhov zoo dua qhov kev tiv thaiv yaig, qhov zoo dua rau kev nkag mus, thiab qhov zoo dua qhov hnav tsis kam.

Vim muaj cov tshuaj lom neeg ruaj khov, thermal conductivity, me me thermal expansion coefficient, zoo hnav tsis kam, ntxiv rau abrasive, muaj ntau lwm yam kev siv, xws li: nrog rau cov txheej txheem tshwj xeeb ntawm silicon carbide hmoov coated nyob rau hauv lub puab phab ntsa ntawm lub turbine impeller los yog lub tog raj kheej lub tog raj kheej, tuaj yeem txhim kho nws cov hnav tsis kam thiab ntev kev pab cuam lub neej ntawm 1 ~ 2 zaug; Siv los ua thawj cov khoom siv refractory, poob siab tsis kam, me me, lub teeb yuag thiab siab zog, zoo zog txuag nyhuv. Qib qis silicon carbide (muaj SiC txog 85%) yog cov deoxidizer zoo, nrog rau nws tuaj yeem ua kom cov hlau nrawm nrawm, thiab yooj yim los tswj cov tshuaj muaj pes tsawg leeg, txhim kho cov hlau zoo. Tsis tas li ntawd, silicon carbide kuj tau siv dav hauv kev tsim hluav taws xob cua sov caij silicon carbon pas nrig.

Cov khoom siv silicon carbide Mohs hardness 9. Ntau ruaj khov rau cov kua qaub slag. Cov ntsiab lus ntawm SiC yog 72%-99%. Muab faib rau hauv av nplaum, Si3N4 bonded, Sialon bonded, -SiC bonded, Si2ON2 bonded thiab recrystallized silicon carbide cib. Feem ntau yog siv rau retort ntawm nonferrous metallurgy, casting txhuas pwm, hluav taws xob rauv hauv ob sab phlu thiab tshav kub exchanger.

Cov khoomQhov zoo

Cov yam ntxwv tseem ceeb ntawm silicon carbide cib yog kub tsis kam, corrosion kuj, thermal stability thiab oxidation kuj, nrog rau zoo hnav tsis kam thiab lub zog. Ntawm qhov kub thiab txias heev, silicon carbide cib muaj qhov zoo thermal stability thiab tuaj yeem tswj cov qauv kev ntseeg tau ntev.

Silicon carbide bricks muaj hardness siab heev thiab kuj hnav-resistant. Nyob rau tib lub sijhawm, lawv tuaj yeem tuav lub zog siab ntawm qhov kub thiab txias.

Silicon carbide bricks kuj muaj thermal conductivity zoo, yog li nyob rau hauv cov txheej txheem ntau lawm, lawv muaj peev xwm ua tau zoo cua sov lub zog thiab txhim kho ntau lawm efficiency.

Silicon carbide cib kuj tseem muaj lub tshuab nqus tsev zoo thiab tiv thaiv hluav taws xob. Hauv thaj chaw xws li kev tshawb nrhiav chaw, silicon carbide cib tuaj yeem tiv taus siab -kub hluav taws xob hauv qhov chaw nqus tsev.

Cov khoomDaim ntawv thov

Ua ntej tshaj plaws, silicon carbide cib yog siv dav hauv kev lag luam metallurgical, xws li hauv ob sab phlu nyob rau hauv siab - kub ib puag ncig xws li smelting furnaces, cua sov furnaces, thiab converters. Qhov kub thiab txias ruaj khov thiab hnav tsis kam ntawm silicon carbide cib tuaj yeem tiv thaiv kev xeb thiab kev puas tsuaj ntawm phab ntsa ntawm lub cub tawg thiab txhim kho kev ua haujlwm ntawm lub cub tawg.

Thib ob, silicon carbide cib kuj tau siv dav hauv kev tsim kho kev lag luam. Raws li cov khoom siv refractory, silicon carbide cib tuaj yeem siv los ua cov ntaub ntawv kub thiab suab rwb thaiv tsev nyob rau hauv qhov kub thiab txias, thiab tseem tuaj yeem siv los ua cov khoom siv kho kom zoo nkauj hauv tsev. Hauv kev tsim kho, xws li cov tsev siab - nce siab, cov chaw lag luam loj, thiab lwm yam, silicon carbide cib tuaj yeem muab kev tiv thaiv zoo.

Tsis tas li ntawd, silicon carbide cib kuj tau siv dav hauv kev lag luam tshuaj, hluav taws xob thiab lwm yam lag luam. Silicon carbide cib tuaj yeem siv rau hauv ob sab hauv ntawm lub qhov cub, qhov cub thiab siab -cov kav dej kub los txhim kho lub neej kev pabcuam thiab kev nyab xeeb ntawm cov khoom siv; lawv kuj tuaj yeem siv los tsim cov khoom siv siab- kub resistant xws li siab - cov khoom siv rauv kub, siab - cov lim dej kub thiab cov khoom siv ceramic.