Kukonzekera Technology ya Alumina Ceramics (1)

Kukonzekera ufa

Alumina powderzakonzedwa mu zinthu ufa malinga ndi zofunika zosiyanasiyana mankhwala ndi njira akamaumba osiyana.The tinthu kukula kwa ufa ndi zosakwana 1μm.Ngati kuli kofunikira kupanga chiyero chachikulu cha alumina ceramic mankhwala, kuwonjezera pa chiyero cha aluminiyamu chiyenera kuyendetsedwa mu 99.99%, chiyeneranso kuchita ultrafine akupera kuti apange tinthu tating'onoting'ono tambirimbiri togawa yunifolomu.

Pamene ntchito extrusion akamaumba kapena jekeseni akamaumba, binder ndi wothandizila pulasitiki ayenera anayambitsa mu ufa, zambiri mu kulemera chiŵerengero cha 10-30% thermoplastic pulasitiki kapena utomoni, organic binder ayenera kusakaniza ndi aluminiyamu ufa pa 150-200 ℃ kutentha wogawana, kuti athe kuwongolera ntchito yakuumba.

Zida za ufa zopangidwa ndi kukakamiza kotentha sizifunikira kuwonjezera zomangira.Ngati ntchito theka-zodziwikiratu kapena zodziwikiratu youma kukanikiza akamaumba, pali zofunikira luso la ufa, tiyenera kugwiritsa ntchito kutsitsi granulation njira kuchitira ufa, kuoneka ozungulira, kuti kusintha fluidity ufa, zosavuta. kudzaza nkhungu khoma basi mu kupanga.Kupopera granulation ya ufa kumafunika pakanikizidwa kowuma, ndipo mowa wa polyvinyl umayambitsidwa ngati binder.M'zaka zaposachedwa, bungwe lofufuza ku Shanghai lapanga parafini wosungunuka m'madzi ngati chomangira chopopera chopopera cha Al2O3, chomwe chimakhala ndi madzi abwino potentha.The ufa pambuyo kutsitsi granulation ayenera fluidity wabwino, lotayirira kachulukidwe, otaya Ngodya mikangano kutentha zosakwana 30 ℃, abwino tinthu kukula chiŵerengero ndi zinthu zina, kuti apeze kachulukidwe apamwamba a chigwa chobiriwira.

Njira yakuumba

Njira zopangiraaluminiyamu ceramic mankhwalazikuphatikizapo kukanikiza youma, grouting, extrusion, ozizira isostatic kukanikiza, jekeseni, otaya kuponyera, kutentha kukanikiza ndi otentha isostatic kukanikiza.M'zaka zaposachedwa kunyumba ndi kunja adapanganso makina opangira ma fyuluta, jekeseni wokhazikika wokhazikika, jekeseni wa gel osakaniza, jekeseni wa centrifugal ndi njira zamakono zopangira jekeseni.Mawonekedwe osiyanasiyana, makulidwe, mawonekedwe ovuta komanso kulondola kwazinthu zimafunikira njira zosiyanasiyana zomangira.