Zomera za alumina zouma: zipangizo zamakono zomwe zimagwira ntchito bwino kwambiri

Zida za alumina zimagwiritsidwa ntchito kwambiri m'magawo ambiri chifukwa cha zabwino zake monga kuuma kwambiri komanso kukhazikika kwamphamvu kwa mankhwala. Komabe, kufooka kwawo kumachepetsa kuchuluka kwa momwe amagwiritsidwira ntchito. Zida za alumina zolimba zinayamba kugwiritsidwa ntchito ndipo zinathetsa vutoli bwino.

 Zoumba za alumina zolimbaZingathe kulimba m'njira zosiyanasiyana. Zodziwika bwino ndi monga kulimba kwa zirconia, komwe kumawonjezera kulimba mwa kuwonjezera ZrO₂ ku alumina ndikugwiritsa ntchito kusintha kwa gawo lake ndi njira zina; kulimba kwa ndevu ndi ulusi, kuwonjezera ma ndevu a SiC, Si₃N₄ kapena C, SiC kuti awonjezere njira zofalitsira ming'alu ndikugwiritsa ntchito mphamvu yosweka; kulimba kwa tinthu tating'onoting'ono ndi kuwonjezera tinthu tating'onoting'ono ta modulus monga SiC ndi TiC kuti tipewe ming'alu ndi kugawaniza.

 Mphamvu yopindika komanso mphamvu yogontha ya zirconia toughened alumina ceramics imawonjezeka kwambiri. Mwachitsanzo, mphamvu yopindika ya zirconia toughened alumina ceramics imatha kufika 480MPa, ndipo mphamvu yogontha ndi 7MPam1/2.

 Ponena za ntchito yake, mu gawo la zamankhwala, imagwiritsidwa ntchito popanga zoyika mano ndi malo olumikizirana chifukwa cha kugwirizana kwake bwino ndi kuuma kwake, zomwe zimachepetsa mavuto; mu gawo la semiconductor, ngati gawo lopangira zida, imagwiritsidwa ntchito mu ma IGBT amagetsi, ndi zina zotero chifukwa cha kutentha kwake kwabwino, kutenthetsa kutentha komanso mphamvu yamakina; mu zida zodulira, imatha kukhala yokhazikika kutentha kwambiri ndikuzindikira kukonza kwa chitsulo chopangidwa ndi zitsulo ndi ma alloys. Zomera za alumina zolimba zikuwala m'magawo ambiri chifukwa cha magwiridwe antchito awo abwino kwambiri. Zomera za Chemshun zimapereka zomera za alumina zolimba zomwe zimakhala ndi kukana kwa abrasion komanso kukana kukhudzidwa kwa makina ogwiritsira ntchito zinthu zambiri.