Hosi ya Alumina Ceramic Rubber Yosavala: Kapangidwe, Katundu, ndi Kugwiritsa Ntchito

Paipi ya alumina ceramic yosatha kutha ndi chinthu chopangidwa ndi chitoliro cha mafakitale chopangidwa pophatikiza matailosi a alumina ceramic olimba kwambiri ndi matrix yosinthasintha ya rabara kudzera mu njira yopangira vulcanization. Alumina ceramic yolumikizidwa (nthawi zambiri yokhala ndi Al₂O₃ ya ≥92%) ili ndi kuuma kwakukulu (Rockwell hardness HRA ≥88), yomwe imawonetsa kuuma kochulukirapo kuposa chitsulo chapamwamba cha chromium. Gawo lakunja la rabara limapereka payipi ndi kusinthasintha kwabwino komanso mawonekedwe otsekera, zomwe zimailola kupindika ndikuyamwa kugwedezeka pansi pa mikhalidwe yovuta yogwirira ntchito. Kapangidwe kameneka kamaphatikiza bwino kukana kwa zoumba zadothi ndi mphamvu zotetezera za rabara, zomwe zimapangitsa kuti ikhale yoyenera kunyamula zinthu zotentha kwambiri m'mafakitale monga migodi, kupanga magetsi, ndi simenti.

Ponena za magwiridwe antchito, ukadaulo wa chinthuchi umasiyana malinga ndi zofunikira pakugwiritsa ntchito. Chigawo cha ceramic nthawi zambiri chimakhala ndi kuchuluka kwa ≥3.6 g/cm³ ndipo mphamvu yopindika imapitirira 290MPa. Ngakhale chimatha kupirira kutentha kwambiri mpaka 1400°C, kutentha kwa ntchito kwa nthawi yayitali nthawi zambiri kumayendetsedwa pakati pa -30°C ndi 150°C nthawi zonse chifukwa cha kuchepa kwa kutentha kwa chigawo cha rabara. Mafotokozedwe a payipi ndi osinthasintha, okhala ndi mainchesi kuyambira 25mm mpaka 1200mm, kutalika kwa single mpaka mamita 20, ndi ma grade a kuthamanga kwa ntchito pakati pa 1MPa ndi 4MPa. Kuphatikiza apo, matailosi a ceramic nthawi zambiri amapangidwa mu mawonekedwe a hexagonal kapena ozungulira ndipo amakonzedwa bwino komanso ovunda kuti atsimikizire kuti khoma lamkati losalala lokhala ndi kukana kwamadzimadzi kochepa.

Mapayipi a rabara a alumina ceramic osatha kuvalaamagwiritsidwa ntchito kwambiri m'makina operekera zinthu zoyendera mpweya wolimba ndi madzi ambiri. M'mafakitale opangira magetsi opangidwa ndi malasha, amagwiritsidwa ntchito potumiza phulusa la ntchentche ndi malasha opukutidwa. Mumakampani opanga zitsulo, amagwiritsidwa ntchito poika malasha opukutidwa ndi kunyamula chitsulo chosungunuka. Mu gawo la mankhwala, pogwiritsa ntchito kukana dzimbiri kwa ziwiya zadothi, mapayipi awa amatha kutumiza zinthu zowononga zomwe zili ndi ma acid, alkali, ndi mchere. Kuphatikiza apo, pantchito zopopera ndi kupopera konkriti, payipi iyi, yokhala ndi ubwino wake wawiri wokana kugwedezeka ndi kutopa, imakulitsa kwambiri nthawi yosamalira ndi moyo wautumiki wa dongosolo la mapaipi, potero imachepetsa ndalama zonse zogwirira ntchito ndi kukonza.