RBSiC (SiSiC) Roller ndi matabwa mu uvuni
1. Chiphunzitso cha Sintering
Reaction bonded SiC(sic) imapangidwa kuchokera ku α-SiC ufa, graphite ufa, kusakaniza zowonjezera ndi organic zomatira. Thupi losakaniza limatulutsidwa ndikudzazidwa mu nkhungu ndi silicon ufa. Kulowetsedwa mu ng'anjo yotenthetsera ya vacuum pa 1680 ° C, ufa wosungunula wa silicon umakumana ndi kaboni m'thupi, pamapeto pake umapanga β-Sic chifukwa cha kutentha kwake.
2. Zogulitsa
Ndi mawonekedwe amphamvu kwambiri, kukana kutentha kwambiri, kuuma kwakukulu, kukana kwamphamvu kwambiri, kukana kwa dzimbiri, kukana kwa okosijeni, kusasunthika kwamafuta, kukhathamiritsa kwamafuta abwino komanso mphamvu yamafuta. Nthawi yamoyo imakhala yopitilira 10 mapaipi achitsulo chosapanga dzimbiri.
Miyendo ya silicon carbide ndi zodzigudubuza zimagwiritsidwa ntchito ngati mafelemu onyamula mu ng'anjo zopangira zadothi, zomwe zimatha kulowa m'malo mwa mbale ya silicon yokhala ndi oxide ndi mullite positi chifukwa ali ndi zabwino monga kusunga malo, mafuta, mphamvu komanso kufupikitsa nthawi yowombera, komanso nthawi yamoyo. wa zipangizo zimenezi kangapo ena ndi abwino kwambiri uvuni mipando.
Miyendo yokhala ndi mphamvu yayikulu, yogwiritsira ntchito nthawi yayitali popanda kupindika, makamaka yoyenera kung'anima ngalande, uvuni wamoto, pawiri - wosanjikiza ng'anjo yodzigudubuza ndi ng'anjo ina yamafakitale - yokhala ndi chimango.
Makalabu amagwira ntchito tsiku ndi tsiku - zoumba zadothi zogwiritsidwa ntchito, zadothi zaukhondo, Ceramic Yomanga, Magnetic material ndi malo otenthetsera otenthetsera amoto wodzigudubuza.
Shandong Zhongpeng Special Ceramics Co., Ltd ndi imodzi mwamayankho akulu kwambiri a silicon carbide ceramic ku China. SiC ukadaulo wa ceramic: Kulimba kwa Moh ndi 9 (Kulimba kwa Moh Chatsopano ndi 13), kukana kwambiri kukokoloka ndi dzimbiri, abrasion yabwino - kukana ndi anti-oxidation. Moyo wautumiki wa SiC ndi 4 mpaka 5 nthawi yayitali kuposa 92% alumina. MOR ya RBSiC ndi 5 mpaka 7 nthawi ya SNBSC, itha kugwiritsidwa ntchito pazinthu zovuta kwambiri. Ndondomeko yobwereketsa ndi yofulumira, yobweretsera ndi monga momwe inalonjezedwa ndipo khalidweli ndi lachiwiri kwa wina aliyense. Nthawi zonse timalimbikira kutsutsa zolinga zathu ndikubwezeranso mitima yathu kwa anthu.
