Ukuzinza okuPhezulu ngeSilicon Carbide Tube

I-Silicon carbide ime njengegorha elingachazwanga kwimizi-mveliso. Ukubonisa ukomelela kwayo kumaqondo obushushu, Iikhemikhali, kunye noxinzelelo loomatshini lubalulekile kubomi obude besixhobo – kunye ne-silicon carbide yenza iqhawe elingenakunqandeka kwezi zixhobo zibalulekileyo.

Iityhubhu ze-SiC zibonelela ngeenzuzo ezininzi ezenza zibe lukhetho olukhethwayo lwezinto zokuvelisa amandla kunye neeshefu ezikhuselayo ze-thermocouple., kuquka ukukhuselwa kwe-thermocouple sheath. Eli nqaku liza kugxininisa iimpawu zabo eziphambili.

Ukunganyangeki

Iityhubhu ze-silicon ze-carbide zibonakalise ukubaluleka kwazo njengemathiriyeli yemizi-mveliso enokuqina okuphezulu, ukukhusela amashishini kubushushu, iikhemikhali kunye noxinzelelo lomatshini ukwandisa ixesha lokusebenza kunye neendleko eziphantsi zokugcinwa. Nje ngeziphumo, amashishini axhamla kwixesha elincitshisiweyo lokwehliswa kwengeniso eyandisiweyo.

I-silicon carbide ye-Sintered yenye yezona zinto zinzima kwi-ceramics kwimizi-mveliso, ukuqhayisa ngobulukhuni obufaniswa nedayimani. Oku kuyenza ifanelekele ngokufanelekileyo indawo ezingqongileyo kunye namashishini abandakanya amaqondo obushushu aphezulu kunye neekhemikhali ezirhabaxa., kunye nokubonelela ngezibonelelo ze-thermal conductivity kunye nokuba nemodyuli ephezulu ye-Young's eyivumela ukuba imelane nokutshintsha kobushushu ngaphandle kokuqhekeka okanye ukwaphuka phantsi koxinzelelo..

Iityhubhu ze-silicon ze-carbide ziyakwazi ukumelana nokuvezwa kwii-asidi ezininzi (hydrochloric, i-sulfuric kunye ne-nitric acids) kunye neziseko (iziseko ze-phosphoric kunye ne-potassium), ngaphezu kwezinyibilikisi ezininzi. Njenge, benza amalena anqabileyo afanelekileyo kwiziko kunye neekontini.

Ukunyangwa kweThermal Shock

I-silicon carbide iye yavela njengenkokeli phakathi kwezinto eziphambili zoshishino. Ukusuka kwi-aerospace ukuya kwimveliso yamandla kunye ne-semiconductor, I-silicon carbide ime ngokuchasene nobushushu obuphezulu kunye nokuhlaselwa kweekhemikhali ngobabalo, ukubonelela ngobume kula mashishini nokunye.

Ulwakhiwo lwelatisi ye-SiC yebhondi ye-carbon kunye ne-silicon ibangela iipropathi ezikhethekileyo ezinje ngokuqina okukhulu kunye namandla omatshini., ukuxinana okuphantsi kunye nemodyuli elastiki, ukungabi namsebenzi, ukwanda kwe-thermal ephantsi kunye ne-high conductivity ye-thermal – iipropathi ezidibanisa ukuxhathisa ukothuka kwe-thermal.

Silicon carbide ceramic, enobulukhuni obufana nedayimani, inamandla okumelana nemekobume erhabaxa nomphezulu wayo oqinileyo kunye nobomi bexesha elide. Njenge, oku kuyenza ilungele usetyenziso olufana nemilomo yokutshiza, idubule imilomo kunye namalungu enkanyamba, apho umgangatho wabo ubavumela ukuba bamelane neemeko ezirhaxayo ngokufanelekileyo. Ngaphezulu, I-silicon carbide iityhubhu zeceramic eziqhayisa ubomi benkonzo ende ngokuchukumisayo zikhethwa ngokukhethekileyo kumashishini amaninzi ngenxa yolu mgangatho..

Ukunganyangeki kobushushu obuphezulu

Iityhubhu ze-silicon ze-carbide zizinto ezibalulekileyo kwiindawo zokushisa okuphezulu. Ukusuka kwiziko lomlilo eliqhumayo ukukhusela i-thermocouple sheaths, Iityhubhu ze-silicon carbide zibonelela ngokuhlala ixesha elide kunye nokunciphisa iindleko zexesha elide ezidlula izinto zemveli kunye nokunciphisa iindleko zolondolozo ekuhambeni kwexesha..

I-Silicon carbide (SC) yiceramic yoshishino eyabelana ngezinto ezininzi ezifana nedayimani. NgeModulus eNcinci ephezulu kakhulu kunye namandla akhethekileyo kunye nokuzinza komda, I-SC ineempawu ezintle zokusetyenziswa kwiinkqubo zokuvelisa.

Izinto zokugquma ezikwaziyo ukumelana nobushushu ezifana ne-polyurethane foam zibonelela ngokugquma ngokuchasene nokothuka kwe-thermal, iyenza ibe lolona khetho lufanelekileyo lokusetyenziswa kwii-kilns kunye nezinye iinkqubo zokufudumeza kunye nokupholisa. Ngaphezulu, Ukuhanjiswa kwayo okuphezulu kwe-thermal kwenza ukuhanjiswa kobushushu okusebenzayo okuguqulela ukonga amandla kunye neenyawo ezisezantsi zekhabhoni..

Ukunyangwa kweAbrasion

I-SiC yimathiriyeli yemizi-mveliso ebalaseleyo eyaziwa ngamandla ayo kunye nokomelela kwayo. Icandelo eliphambili kwizityalo zamandla, amaziko okulungisa imichiza, kunye nezinye iindawo ezininzi zokuvelisa ngokufanayo – iimpawu zayo zendalo zokuqhuba okuphezulu kwe-thermal, Ukomelela kwamatshini, ukumelana nokukhula kunye nokwandiswa kwe-thermal ephantsi yinto eye yaqinisa indawo yayo phakathi kweeseramics ze-ceramic zamashishini.

Ukusebenzisa iinkqubo eziphambili ezifana ne-reaction sintering kunye noxinzelelo lwe-sintering, abavelisi bavelisa iityhubhu ze-Sintered ze-ceramic ezine-microstructure efanayo kunye ne-porosity ephantsi usebenzisa iindlela zaseburhulumenteni ezifana ne-reaction sintering.. Ezi ityhubhu zine-coefficient ephantsi kakhulu yokwanda kwe-thermal kumaqondo obushushu aphezulu ngelixa zikwazi ukumelana kakhulu nomhlwa kwiikhemikhali ezahlukeneyo ezinobundlobongela..

Iityhubhu ze-SSiC ziqhayisa ngomgangatho wobulukhuni be-Mohs xa kuthelekiswa nedayimane, ukubenza bomelele kwaye bafaneleke kwizicelo ezininzi ezahlukeneyo. Iyakwazi ukuxhathisa umonakalo ovela kwi-abrasion kunye nokukhukuliseka, Iityhubhu zeSSiC zenza olona khetho lubalaseleyo lwemathiriyeli yokudutyulwa kwemilomo yokuqhushumba kunye nenxalenye yesitshingitshane kunye nokubonelela ngokumelana okukhulu neasidi..