Ko te silicon carbide i whakakorikoria ki te pēhanga hauātea he carbide kore-whakarewa me te hononga honohono silicon me te waro, ā, ko tōna pakeke te tuarua ki te taimana me te boron carbide. Ko te tātai matū ko SiC. Ko ngā tioata kore tae, he kikorangi me te mangu te āhua ina waikurahia, ina kei roto rānei ngā poke. Ko te rerekētanga o te silicon carbide me te hanganga taimana e kiia ana ko te emery. Ko te pakeke o te emery he tata ki te taimana, he pai te pumau o te wera, he pumau ki te wai waikawa hydroxy me te waikawa whanariki kukū, ā, he pumau ki te waikawa whakaranu, ki te waikawa phosphoric rānei o te waikawa hauwai kukū me te waikawa hauota. Ka wehewehea ngā kawakore e rewa ana i roto i te hauātea tuwhera. Ka wehea ki te silicon carbide hangai me te silicon carbide taiao. Ko te silicon carbide taiao, e mohiotia ana ko te carbonite, ka kitea nuitia i roto i te kimberlite me te amphibolite puia, engari he iti tōna rahinga, ā, kāore he uara keri.
Ko te silicon carbide i whakakorikoria ki te pēhanga hau ahumahi he ranunga o te -SiC me te -SiC, ā, e rua ngā tae: mangu me te kakariki. Kāore he tae o te silicon carbide parakore, kei roto ngā poke he mangu, he kakariki, he kikorangi, he kōwhai. Ko ngā rohe kōhatu hexagonal me te cubic, he pereti te karaihe, he pou pūhui. Ko te kanapa karāhe, he mātotoru 3.17 ~ 3.47G/CM3, ko te pakeke o Morse 9.2, ko te karu hiko hoki kei te 30380 ~ 33320MPa te ira rewa: ka tīmata te rerekētanga o te hau 2050, ka tīmata te rerekētanga o te hau whakaora 2600. Ko te tauwehenga rapa he 466,480 MPa. Ko te kaha kume he 171.5MPa. Ko te kaha pēhi he 1029MPa. Ko te tauwehenga whānui raina he (25 ~ 1000)5.010 ~ 6/. Ko te kawe wera (20) he 59w/(mk). Ko te pumau matū, ko te kohua i roto i te HCl, H2SO4, HF e kore e memeha.
E ai ki ngā whakamahinga rerekē, ka wehea te karawiti silicon sintered pehanga hauātea ki te abrasive, te refractory data, te deoxidizer, te silicon carbide hiko me ētahi atu. Kaua e iti iho i te 98% te ihirangi SiC o te karawiti silicon abrasive. Ka wehea te karawiti silicon abrasive ki: (1) te karawiti silicon pango matatau, ko tōna ihirangi SiC he rite tonu ki te huri i te karawiti silicon. (2) te karawiti silicon pango tuarua, ko te ihirangi SiC neke atu i te 90%. (3) Ko te ihirangi o te karawiti silicon pango me te SiC i roto i ngā refractory iti-kounga kaua e iti iho i te 83%. Ko te ihirangi o te karawiti silicon me te SiC e whakamahia ana i roto i te deoxidizer me neke atu i te 90%. Heoi, ko te ihirangi o te karawiti silicon ahumahi waro, ko te ihirangi karawiti silicon neke atu i te 45% o te maimoatanga ka taea hoki te whakamahi hei deoxidizer hanga maitai. Ko te karawiti silicon mo te deoxidizing e rua ngā momo ahua paura me te poraka hanga. Ko te deoxidizer paura karawiti silicon pango he rahi matūriki o te 4 ~ 0.5 mm me te 0.5 ~ 0.1 mm.
E rua ngā wāhanga matua o te silicon carbide hiko
(1) Ko te karawiti silicon matomato e whakamahia ana mō ngā huānga whakamahana hiko he rite tonu ki te karawiti silicon matomato e whakamahia ana mō te huri.
(2) He whakaritenga mahi hiko motuhake tā te waro hiko silicon mō te hopu, he rerekē tēnei i te waro hiko silicon pango mō te huri i ngā raraunga ātete.
Te whakamahinga o te karawiti silicon kua whakakikoruatia ki te pēhanga hauātea
He mahi motuhake ā ngā hua silicon carbide kua whakatōngia ki te pēhanga hauāwhio pērā i te ātete ki te pāmahana teitei, te ātete ki te kakahu, te ātete ki te wera, te ātete ki te ahi, te ātete ki te hihi, te kawe hiko me te wera pai rawa atu, me ētahi atu, ā, kua whānuitia te whakamahinga i roto i ngā tari ōhanga o te motu. I Haina, ko te silicon carbide matomato te nuinga e whakamahia ana hei mea whakakoi. Ka whakamahia te silicon carbide mangu hei hanga kōhatu huri, e whakamahia ana hei tapahi me te huri i ngā rauemi he iti te kaha kume, pērā i te karāhe, te uku, te kōhatu, ngā mea whakakā, me te huri hoki i ngā wāhanga rino maka me ngā rauemi konganuku kore-ferrous. Ko te huri i hangaia mai i te silicon carbide matomato ka whakamahia te nuinga mō te huri i te carbide sima, te koranu titanium, te karāhe whatu, me te huri hoki i te raina rango me ngā taputapu maitai tere-teitei. Ko ngā mea whakakoi silicon carbide pūtoru ka whakamahia anake mō te huri tino-tika o ngā peera iti. Ka taea te whakapai ake i te ātete kakahu o ngā impeller turbine mā te pani i te paura SIC ki runga i a rātou mā te whakakikorua hiko. Mā te whakamahi i te pēhanga miihini hei pana i te mira SiC200 pūtoru me te paura moroiti W28 ki te pakitara rango o te miihini tahunga ā-roto, ka taea te neke atu i te rua te roa o te ora o te rango.
Wā tuku: Pipiri-16-2023