(Mpira wa Silicon NitrideZopangidwa ndiWintrustek)
Silicon nitridenthawi zambiri amagwiritsidwa ntchito ngati gawo lofunikira pogaya zozungulira, media media, ndi ma turbines. Zopangidwa ndi silicon nitride zimakhala ndi kulimba kofanana ndizirconiapoyerekeza ndi zipangizo wamba, koma amakhalanso ndi kuuma apamwamba ndi kuvala zochepa.
Mtengo wa Si3N4 mpira wambaKukhazikika kwamphamvu kwamafuta kumapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito pakutentha kwambiri komanso kugaya kwa cryogenic. Kukaniza kwapadera kwa mpira kumawulola kupirira kusintha kwa kutentha popanda kutaya magwiridwe ake kapena mawonekedwe ake. Ndi 60% yopepuka kuposa chitsulo, imakula pang'ono ndi kutentha, ndipo imakhala ndi ndalama zotsika zogwiritsira ntchito poyerekezera ndi njira zina zophera. Chifukwa cha kuuma kwake kwakukulu, imatha kupirira zofuna zazitsulo zambiri zoyenga ufa ndi kuphwanya. Pakafunika kuuma kwakukulu, kuipitsidwa pang'ono, ndi ma abrasion ochepa, iyi ndiye njira yabwino yopera.
Katundu
Ubwino waukulu wa silicon nitride pa mipira yachitsulo:
1. Chifukwa cha kulemera kwake kochepa ndi 59% kuposa mpira wachitsulo, imachepetsa kwambiri kugudubuzika, mphamvu yapakati, ndi kuvala mumsewu pamene chimbalangondo chimayenda mothamanga kwambiri;
2. Popeza kuti elasticity modulus ndi 44% yokulirapo kuposa yachitsulo, mapindikidwe ake ndi ocheperapo kuposa mpira wachitsulo;
3. HRC ndi 78, ndipo kuuma kwake ndi kwakukulu kuposa kwachitsulo;
4. Kugunda kwapang'ono, kutsekereza magetsi, osagwiritsa ntchito maginito, komanso kukana kuwonongeka kwa mankhwala kuposa chitsulo;
5. The material's coefficient of thermal expansion is 1/4 of that of steel, making it resistant to abrupt temperature changes;
6. RA imatha kufika 4-6 nm, kupangitsa kuti ikhale yosavuta kufika pamtunda wopanda chilema;
7. Kukana kwamphamvu kwa kutentha, pa 1050℃, mpira wa silicon nitride ceramic umakhalabe wolimba kwambiri ndi kuuma kwake;
8. Imatha kugwira ntchito popanda kuthira mafuta komanso osachita dzimbiri.
