Yintoni umahluko phakathi kwe-reaction bonded kunye ne-sintered silicon carbide?

Xa kufikwa kuiiseramikhi zesilicon carbide, kukho iintlobo ezimbini eziphambili: i-reaction bonded kunye ne-sintered. Nangona zombini ezi ntlobo ze-ceramics zibonelela ngamanqanaba aphezulu okuqina kunye nokumelana nokuguguleka, kukho umahluko ophambili phakathi kwezi zimbini.

Masiqale ngee-ceramics ze-silicon carbide ezibotshelelweyo ezisabelayo. Ezi ceramics ziphakathi kwe-85% kunye ne-90% ye-silicon carbide kwaye ziqulathe i-silicon ethile. Ukumelana kwazo nobushushu obuphezulu yi-1380°C. Enye yezona nzuzo ziphambili zee-ceramics ze-silicon carbide ezibotshelelweyo ezisabelayo kukuba zinokulungiswa ngokobukhulu obukhulu kunye neemilo. Oku kuzenza zibe zizixhobo ezifanelekileyo zokwenza iimveliso ezizodwa nezingobuchwephesha. Ukongeza, i-coefficient ephantsi yokwandiswa kunye nokumelana okuhle kokuguguleka kwezi ceramics kuzenza zibe lukhetho oludumileyo kushishino lwe-cyclone yemigodi.

I-silicon carbide engenaxinzelelo inomxholo ophezulu we-silicon carbide, enokufikelela ngaphezulu kwe-99%, kwaye ukumelana nobushushu obuphezulu yi-1650°C. I-coefficient ethile yokwandiswa ifakwa ngexesha lenkqubo yokusila, nto leyo eyenza i-SiC engenaxinzelelo ifaneleke kakhulu ekwenzeni iindawo ze-SiC ezichanekileyo. Ngenxa yokuchaneka kwayo okuphezulu, i-silicon carbide engenaxinzelelo idla ngokusetyenziswa ukwenza ii-molds kunye neendawo ezichanekileyo ezingagugiyo.

Ukongeza kwiimolds ezichanekileyo kunye nezixhobo zokuguguleka, izixhobo ze-oven eziphezulu zeshishini leekhemikhali zinokusebenzisa ithuba lokumelana nobushushu okuphezulu kwe-silicon carbide ecinezelweyo engenaxinzelelo. Kwabo bafuna iityhubhu zokutshintsha ubushushu ezisebenzayo kwizixhobo zabo zokucubungula iikhemikhali, i-silicon carbide ecinezelweyo engenaxinzelelo ngokuqinisekileyo lukhetho lwezinto ezifanelekileyo.

Ngokubanzi, ukubopha okubangelwa kukusabela kunye nokusila okungenaxinzelelo kwe-SiC ceramics, nangona nganye ineengenelo kunye neengxaki zayo, zifanelekile kumashishini ahlukeneyo kunye nokusetyenziswa. Ukuba ufuna imveliso eyahlukileyo okanye enkulu enokumelana nokuguguleka, ii-silicon carbide ceramics ezibophelelwe kukusabela zinokuba lukhetho olufanelekileyo kuwe. Kwiindawo ezibuthathaka ngakumbi ezifuna ukumelana namaqondo obushushu aphezulu, i-silicon carbide ebophelelwe kuxinzelelo inokuba lukhetho olungcono. Nokuba loluphi uhlobo lwe-silicon carbide ceramic olukhethayo, ungaqiniseka ukuba luya kubonelela ngokuqina kunye nokuzinza okufunekayo kwiprojekthi yakho.