[Whakaahuatanga whakarāpopototanga] Ko te pehanga o te hau he carbide konganuku-kore i honoa me nga here kovalent waro me te waro, a ko tona pakeke he tuarua ana ki te taimana me te carbide boron.Ko te tātai matū ko SiC.Ko nga tioata kore tae, he puru me te pango te ahua ina waikurahia, he poke ranei.
Ko te pehanga o te hau he carbide konanuku-kore me te here konukawata me te waro, he tuarua ana te pakeke ki te taimana me te waro carbide.Ko te tātai matū ko SiC.Ko nga tioata taekore, he kikorangi me te pango te ahua ina waikurahia, he poke ranei.Ko te huringa o te carbide silicon me te hanganga taimana ka kiia ko te emery.Ko te pakeke o te emery e tata ana ki te taimana, te pai o te waiariki, te pumau ki te waiariki waikawa waikawa wairewa me te waikawa pungatara kaha, me te kore e mau ki te waikawa whakauru, waikawa phosphoric ranei o te waikawa hauwai me te waikawa nitric.Ka rerekë te kawakore ka rewa i roto i te hau kowaowao.Kua wehea ki te carbide silicon synthetic me te carbide silicon taiao.Ko te carbide silicon taiao, e kiia nei ko te carbonite, ka kitea te nuinga i roto i te kimberlite me te amphibolite puia, engari he iti te nui, kaore he uara keri.
Ko te pehanga o te hau-a-ahumahi karekau he ranunga o -SiC me -SiC ka tae mai ki nga tae e rua: he pango me te matomato.Karekau he tae o te kaarai silicon parakore, he pango, he kakariki, he puru, he kowhai kei roto nga poke.Hexagonal me te tapanga witi pūtoru, te karaihe he paraharaha, tīwae pūhui.Karāhe whiti, kiato 3.17-3.47G/CM3, Morse pakeke 9.2, te karu hoki i 30380~ 33320MPa ira whakarewa: kōhauhau 2050 i timata ki te rerekē, te huru whakaora 2600 timata ki te rerekē.Ko te whakarea elastic he 466, 480MPa.Ko te kaha tensile ko 171.5MPa.Ko te kaha compressive ko 1029MPa.Ko te whakarea roha raina he (25~ 1000)5.010 ~ 6/, ko te kawe werawera (20) he 59w/(mk).Te pumau matū, te koropuputanga i roto i te HCI, H2SO4, HF e kore e horo.
E ai ki nga whakamahinga rereke, ka wehewehea te pehanga hau kawa ki te abrasive, te raraunga whakaahuru, te deoxidizer, te hiko hiko hiko me etahi atu.Ko te ihirangi SiC o te carbide silicon abrasive kaua e iti iho i te 98%.Ka wehewehea nga whare whakangao me te carbide silicon ki: (1) nga raraunga whakamaarama matatau ki te carbide silicon carbide, he rite tonu tana ihirangi SiC ki te huri i te carbide silicon.(2) Raraunga whakaahuru tuarua pango silicon carbide, SiC ihirangi neke atu i te 90%.(3) Ko te ihirangi o te carbide silicon pango me te SiC i roto i nga refractories iti-kore e kore e iti iho i te 83%.Ko te ihirangi o te carbide silicon me te SiC e whakamahia ana i roto i te deoxidizer e hiahiatia ana kia neke ake i te 90%.Heoi, waro ahumahi graphitization oumu marara, silicon carbide ihirangi o neke atu i te 45% o te maimoatanga taea hoki te whakamahi rite steelmaking deoxidizer.Ko te Silicon carbide mo te kaihoko deoxidizing e rua nga momo ahua o te paura me te paraka hangai.Te paura deoxidizer pango silicon carbide te tikanga he rahi matūriki o 4~0.5 mm me te 0.5~0.1 mm.E rua nga waahanga matua o te carbide hiko.(1) Ko te carbide silicon matomato e whakamahia ana mo nga huānga whakawera hiko he tino rite ki te carbide silicon matomato e whakamahia ana mo te huri.(2) Ko te carbide silicon mo te hopu he whakaritenga mahi hiko motuhake, he rereke mai i te carbide silicon pango mo te huri i nga raraunga refractory.
Te whakamahi i te pehanga hau-a-hau-a-te-a-te-a-te-a-te-a-hau
Ko nga hua o nga hua o te carbide silicon pehanga o te hau he mahi motuhake penei i te teitei o te pāmahana, te kakahu parenga, te wera wera, te ahi, te aukati radiation, te pai o te hiko me te waiariki, me era atu, kua whakamahia nuitia i roto i nga tari rereke o te ohanga o te motu.I Haina, ka whakamahia te nuinga o te carbide silicon matomato hei abrasive.Ka whakamahia te carbide silicon pango ki te huri kohatu, he maha nga wa e whakamahia ana ki te tapahi me te huri i nga taonga me te kaha iti o te kaha, penei i te karaehe, te karamu, te kohatu, te whakamaarama, me te huri i nga waahanga rino me nga mea whakarewa kore-ferrous.Ko te hurihanga i hangaia mai i te carbide silicon matomato te nuinga o te whakamahi mo te hurihanga o te carbide cimented, te titanium alloy, te karaihe mata, me te mo te hurihanga o te raima cylinder me nga taputapu maitai tere.Ka whakamahia noa nga abrasives carbide silicon cubic mo te hurihanga tino tika o nga pikaunga iti.Ka taea te whakapai ake i te whakamaatanga o nga kaitahuri turbine ma te whakamahi i te paura SIC ki runga ma te whakakikorua.Ma te whakamahi i te pehanga miihini ki te pana i te mira SiC200 pūtoru me te paura moroiti W28 ki te pakitara rango o te miihini whakangiha o roto, ka taea te neke atu i te rua te ora o te rango.
Wā tuku: Oketopa-11-2023