Indlela yokulungiselela, izici kanye nensimu yokusetshenziswa kwe-silicon carbide e-reaction-sintered

I-silicon carbide ekhipha ukusabela iyindlela yokulungiselela izinto zobumba ezisebenza kahle kakhulu. Iphendula futhi icindezele i-silicon carbide powder namanye amakhemikhali ngaphansi kwezimo zokushisa okuphezulu ukuze ikhiqize ukuminyana okuphezulu, ubulukhuni obuphezulu, ukumelana nokuguguleka okuphezulu kanye nezinto ezimelana nokugqwala okuphezulu.

1. Indlela yokulungiselela. Inqubo yokulungiselela i-silicon carbide eshintshayo ivame ukufaka izinyathelo ezimbili: ukusabela kanye nokuthungula. Esigabeni sokusabela, i-silicon carbide powder isabela namanye amakhemikhali emazingeni okushisa aphezulu ukuze yakhe ama-compounds anamaphuzu aphansi okuncibilika, njenge-alumina, i-boron nitride kanye ne-calcium carbonate. Lawa ma-compounds angasebenza njengezihlanganisi kanye nezigcwalisi ukusiza ukwandisa ikhono lokubopha kanye nokugeleza kwama-powder e-silicon carbide ngenkathi kunciphisa ama-pores kanye namaphutha ezintweni. Esigabeni sokuthunga, umkhiqizo wokusabela uthululwa emazingeni okushisa aphezulu ukuze kwakhiwe izinto ze-ceramic ezixineneyo. Izinto ezifana nokushisa, ingcindezi kanye nomoya ovikelayo kudingeka zilawulwe enkambisweni yokuthungula ukuqinisekisa ukuthi izinto zisebenza kahle. Izinto ze-silicon carbide ceramic ezitholiwe zinezici zobulukhuni obuphezulu, amandla aphezulu, ukumelana nokugqwala okuphezulu kanye nokumelana nokuguguleka okuphezulu.

2. Izakhiwo. I-silicon carbide e-Reaction-sintered inezakhiwo eziningi ezinhle kakhulu, okwenza isetshenziswe kabanzi emikhakheni eminingi. Okokuqala, izinto ze-silicon carbide ceramic zinobulukhuni obukhulu kakhulu futhi zingasika ngisho nezinto eziqinile njengensimbi. Okwesibili, izinto ze-silicon carbide ceramic zinokumelana okuhle nokuguguleka futhi zingasetshenziswa isikhathi eside ngaphansi kwezimo ezinzima njengokushisa okuphezulu kanye nokucindezela okuphezulu. Ngaphezu kwalokho, izinto ze-silicon carbide ceramic zinokumelana okuphezulu nokugqwala kanye nokuqina kokushisa okuphezulu, futhi zingasetshenziswa isikhathi eside ezindaweni ezigqwalayo kanye namazinga okushisa aphezulu.

3. Izinkambu Zokusebenza. I-silicon carbide e-Reaction-sintered isetshenziswa emikhakheni eminingi. Isibonelo, embonini yokukhiqiza, izinto ze-ceramic ze-silicon carbide zisetshenziswa kabanzi ezintweni zokubhula, amathuluzi okusika kanye nezingxenye zokuguguleka. Ubulukhuni bayo obuphezulu kanye nokumelana nokuguguleka kwenza kube usizo ekusikeni, ekugayeni nasekugayeni

Kuhle kakhulu ekupholisheni nakwezinye izinkambu. Embonini yamakhemikhali, izinto ze-silicon carbide ceramic zingasetshenziswa ukukhiqiza amakhemikhali afana ne-sulfuric acid kanye nama-asidi aqinile njenge-hydrofluoric acid ngenxa yokumelana kwawo nokugqwala okuphezulu kanye nokuqina kokushisa okuphezulu. Emkhakheni wezindiza kanye nokuzivikela, izinto ze-silicon carbide ceramic zingasetshenziswa ukwenza ama-missile casings kanye nezinto zokuvikela ukushisa zezindiza ezihamba ngesivinini esikhulu. Ngaphezu kwalokho, izinto ze-silicon carbide ceramic zingasetshenziswa futhi emkhakheni wezokwelapha wamalunga okwenziwa kanye nezinsimbi zokuhlinza zamathambo, ngoba zinokuhambisana okuhle kwe-bio kanye nokumelana nokuguguleka.

I-silicon carbide eshintshayo iyindlela yokulungiselela izinto ze-ceramic ezisebenza kahle kakhulu. Iphendula futhi icindezele i-silicon carbide powder namanye amakhemikhali ngaphansi kwezimo zokushisa okuphezulu ukuze ikhiqize ukuminyana okuphezulu, ubulukhuni obuphezulu, ukumelana nokuguguleka okuphezulu kanye nezinto zokumelana nokugqwala okuphezulu. Izinto ze-silicon carbide ceramic zinezakhiwo ezinhle, njengobulukhuni obuphezulu, ukumelana nokuguguleka okuphezulu, ukumelana nokugqwala okuphezulu kanye nokuqina kokushisa okuphezulu, ngakho-ke isetshenziswa kabanzi emikhakheni eminingi efana nokukhiqiza, imboni yamakhemikhali, amasimu ezindiza kanye nezokuvikela kanye namasimu ezokwelapha.