Silicon nitride ndi ceramic yotuwa yokhala ndi kulimba kwapang'onopang'ono, kukana kutentha kwambiri, komanso zinthu zomwe sizingalowe muzitsulo zosungunuka.
Pogwiritsa ntchito mawonekedwewa, amagwiritsidwa ntchito pazigawo za injini zoyatsira mkati monga zida za injini yamagalimoto, ma nozzles a makina owotcherera a blowpipe, ndi zina, makamaka magawo omwe amayenera kugwiritsidwa ntchito m'malo ovuta monga kutenthedwa.
Ndi kukana kwake kuvala kwambiri komanso mphamvu zamakina apamwamba, kugwiritsa ntchito kwake ponyamula zida zodzigudubuza, mayendedwe ozungulira shaft ndi zida zopangira zida za semiconductor zikukulirakulira nthawi zonse.
Makhalidwe a silicon nitride ceramics
1, ali ndi mphamvu zambiri pamtundu waukulu wa kutentha;
2, mkulu fracture kulimba;
3, mphamvu yopindika yabwino;
4, kukana kutopa makina ndi zokwawa;
5, kuwala - otsika osalimba;
6, kuuma kwakukulu ndi kukana kuvala;
7, kukana kwamphamvu kwambiri kwamafuta;
8, otsika matenthedwe kukula;
9, insulator yamagetsi;
10, kukana bwino kwa okosijeni;
11, kukana kwa dzimbiri kwa mankhwala.
Ma silicon nitride ceramics ali ndi mphamvu yocheperako yowonjezera kutentha komanso kukhathamiritsa kwamafuta ambiri, motero amakhala ndi kukana kwamphamvu kwa kutentha.Sintered sintered silicon nitride sidzathyoka ikatenthedwa mpaka 1000 ℃ ndikuyika m'madzi ozizira.Pa kutentha kosakwera kwambiri, silicon nitride imakhala ndi mphamvu zambiri komanso kukana, koma pamwamba pa 1200 ℃ idzawonongeka ndi kukula kwa nthawi yogwiritsira ntchito, kotero kuti mphamvu zake zimachepetsedwa, zowonongeka zowonongeka pamwamba pa 1450 ℃, kotero kugwiritsa ntchito. kutentha kwa Si3N4 nthawi zambiri sikudutsa 1300 ℃.
Chifukwa chake, silicon nitride yakhala ikugwiritsidwa ntchito kwambiri mu:
1. Mpira wozungulira ndi mayendedwe odzigudubuza;
2. Zida za injini: valve, rocker arm pad, kusindikiza pamwamba;
3. Kuwotcha koyilo yopangira cholumikizira;
4. turbine masamba, masamba, ndowa;
5. Zowotcherera ndi zowotcherera;
6. Kuwotcha chinthu msonkhano;
7. Wowotcherera poyika;
8. Miyendo yolondola ndi manja m'malo ovala kwambiri;
9. Thermocouple sheath ndi chubu;
10. Zida zopangira semiconductor.
