Phaj Alumina Ceramic Vulcanized Uas Tiv Thaiv Kev Hnav: Qhov Tseem Ceeb Rau Kev Txhim Kho Kev Ua Haujlwm ntawm Kev Hnav Hauv Kev Lag Luam

Cov phaj alumina ceramic vulcanized uas tiv taus hnavyog ib yam khoom siv sib xyaw ua ke uas ua los ntawm kev sib txuas cov alumina ceramic uas muaj cov khoom siv siab (Al₂O₃ cov ntsiab lus ≥92%) nrog cov roj hmab matrix los ntawm cov txheej txheem kub vulcanization. Nws ua ke qhov nyuaj ntawm ceramic nrog lub peev xwm buffering elastic ntawm roj hmab, ua rau nws tsim nyog rau kev tiv thaiv qhov chaw ntawm cov khoom siv hauv kev lag luam hauv qab kev cuam tshuam siab thiab kev hnav siab. Cov txheej txheem alumina ceramic hardness ncav cuag HRA 85-90, qhov ceev yog txij li 3.6 txog 3.9 g / cm³, thiab nws qhov kev tiv thaiv hnav yog li 10 txog 15 npaug ntawm cov hlau phaj ib txwm muaj.

Cov lus qhia tseem ceeb ntawm kev ua tau zoo suav nrog: cov vuas ceramic tuab feem ntau yog 15-30 hli, cov roj hmab tuab 4-15 hli, thiab lub zog tev tawm tag nrho ≥12 kN/m. Qhov kub ua haujlwm yog txij li -40°C txog +120°C, nrog rau kev kam rau siab ib ntus txog li 150°C. Tus coefficient ntawm kev sib txhuam yog qis dua 0.2, ua rau cov khoom siv lo thiab kev thaiv kev pheej hmoo thaum lub sijhawm xa khoom. Los ntawm cov txheej txheem vulcanization, kev sib txuas tshuaj lom neeg ntawm qhov sib txuas ceramic-roj hmab tiv thaiv kev sib cais lossis kev tawg, ua rau lub neej ua haujlwm ntev dua 3-5 xyoos piv rau cov hlau manganese ib txwm muaj.

Cov ntawv thov tseem ceeb suav nrog: cov chaw hloov pauv ntawm cov siv conveyor, chutes, thiab hoppers hauv kev lag luam mining thiab aggregate; pub chutes thiab separator casings hauv cov hlau thiab cement cog; thiab cov thee poob hauv cov chaw tsim hluav taws xob thee tuav cov tshuab. Thaum lub sijhawm teeb tsa, lub phaj vulcanized raug kho rau ntawm lub phaj khoom siv los ntawm kev sib txuas txias lossis kub vulcanization, tsis muaj cov khoom siv kho tshuab nyuaj. Rau cov cheeb tsam hnav siab, cov qauv sib xyaw zirconia-toughened (Al₂O₃-ZrO₂) tuaj yeem xaiv tau, ua rau qhov tawg tawv mus rau 4.5-5.5 MPa·m¹/², ntxiv tiv taus kev puas tsuaj los ntawm cov khoom loj.