Ubwino zisanu ndi chimodzi wa mphamvu ya mumlengalenga sintered silicon carbide ndi kugwiritsa ntchito silicon carbide ceramics

Kupanikizika kwa mumlengalenga sintered silicon carbide sikungogwiritsidwanso ntchito ngati chotupa, koma ngati chinthu chatsopano, ndipo chimagwiritsidwa ntchito kwambiri pazinthu zamakono, monga zitsulo zopangidwa ndi silicon carbide. Nanga maubwino asanu ndi limodzi otani a mumlengalenga kuthamanga sintering silicon carbide ndi ntchito silicon carbide ceramics?

Ubwino zisanu ndi chimodzi wa zinthu za mumlengalenga za sintered silicon carbide:

1. Kutsika kochepa

Zida za silicon carbide zimakhala ndi kachulukidwe kakang'ono kuposa chitsulo, zomwe zimapangitsa chipangizocho kukhala chopepuka.

2. Kukana dzimbiri

Silicon carbide zakuthupi zimakhala ndi malo osungunuka kwambiri, inertia yamankhwala, kukana kutenthedwa kwamafuta, silicon carbide imagwiritsidwa ntchito mu abrasives, mitsuko ya ceramic, zokutira za silicon carbide, zitha kugwiritsidwa ntchito pakusungunula ndi kusungunula ndi ng'anjo yowongoka ya silinda, njerwa, aluminium electrolytic cell lining. , tungsten, ng'anjo yaying'ono ndi zinthu zina za silicon carbide ceramic.

3, kutentha kwambiri, kuchuluka kwamafuta kumachepetsedwa

Silicon carbide zinthu amapangidwa pa kutentha kwambiri. M'malo ena otentha kwambiri, zida zomwe zimafunikira mphamvu yokonza ndikuwongolera bwino zomwe silicon carbide ceramics zitha kukwaniritsa zimafunikira. Kutentha kwakukulu kwa silicon carbide ndi pafupifupi 800, ndipo kutentha kwachitsulo ndi 250. Kuwerengera molakwika, pafupifupi kutentha kwapakati pa silicon carbide mumtundu wa 25 ~ 1400 ndi 4.10-6 / C. Kuchulukitsa kwamafuta a silicon carbide kumayesedwa, ndipo zotsatira zake zikuwonetsa kuti kuchuluka kwake ndi kocheperako kuposa ma abrasives ena ndi zida zotentha kwambiri. Sintered silicon carbide pansi pa mphamvu ya mumlengalenga

4, mkulu matenthedwe madutsidwe

Kutentha kwazinthu za silicon carbide ndizokwera kwambiri, chomwe ndi chinthu china chofunikira cha thupi la silicon carbide. Kutentha kwamafuta a silicon carbide ndiakulu kwambiri kuposa ma refractories ena ndi ma abrades, pafupifupi 4 nthawi ya corundum. Silicon carbide imakhala ndi coefficient yocheperako yakukulitsa kwamafuta komanso kutentha kwambiri, chifukwa chake chogwiriracho chizikhala ndi kupsinjika pang'ono pakutentha ndi kuzizira. Ichi ndichifukwa chake zigawo za SiC zimagonjetsedwa kwambiri ndi mantha.

5, mphamvu zamakina apamwamba, kuuma bwino

Mphamvu zamakina za silicon carbide ndizokwera kwambiri, zomwe zimalepheretsa kusinthika kwazinthu. Silicon carbide ili ndi mphamvu zamakina apamwamba kuposa corundum.

6, kuuma kwakukulu ndi kukana kuvala

Kuuma kwa zida za silicon carbide ndizokwera kwambiri, ndipo kuuma kwa kusiyana kwa Moss ndi 9.2 ~ 9.6, chachiwiri kwa diamondi ndi tungsten carbide. Poyerekeza ndi zida zachitsulo zachitsulo, zimapereka kuuma kwakukulu, kutsika kocheperako kwa mikangano, kukangana kochepa, kuuma pang'ono pamwamba komanso kukana kuvala bwino popanda mafuta. Komanso, ndi kugonjetsedwa ndi zinthu zakunja, kusintha pamwamba kulolerana. Sintered silicon carbide pansi pa mphamvu ya mumlengalenga

Kugwiritsa ntchito mumlengalenga kuthamanga sintered silicon carbide ceramics

1, silicon carbide kupanga zinthu zadothi zapadera

Silicon carbide material ndi zinthu zolimba kwambiri komanso zotsika mtengo, zomwe zimatha kupanga zinthu za silicon carbide, monga zisindikizo za silicon carbide, manja a silicon carbide, mbale za silicon carbide bulletproof, mbiri za silicon carbide, ndi zina zambiri, zomwe zingagwiritsidwe ntchito pazisindikizo zamakina ndi zina zambiri. mapampu osiyanasiyana. Sintered silicon carbide pansi pa mphamvu ya mumlengalenga

2, zirconia zopangira zida zadothi zapadera

Zirconia ceramic imakhala ndi ma ionic madulidwe apamwamba, kukhazikika kwamankhwala abwino komanso kukhazikika kwadongosolo, ndipo yakhala yophunzira komanso yogwiritsidwa ntchito kwambiri ndi electrolyte. Ndi kusintha ndondomeko kupanga zirconia zochokera electrolyte filimu, kuchepetsa kutentha ntchito ndi kupanga mtengo wa zipangizo zimenezi, ndi kuyesetsa kukwaniritsa mafakitale ndi njira yofunika ya kafukufuku mtsogolo.