Ka Loiloi ʻenehana o nā Papa Vulcanized ZTA Ceramic Rubber Pale Kiʻekiʻe

ʻO ka papa vulcanized rubber keramika ZTA (Zirconia Toughened Alumina) he huahana composite pale ʻaʻahu i hana kūikawā ʻia no nā kūlana abrasion koʻikoʻi. Hoʻohui ka huahana i nā keramika ZTA (i haku ʻia me 75%-80% Al₂O₃ a me 20%-25% ZrO₂) me ka rubber kūlohelohe elasticity kiʻekiʻe a me kahi papa kila ma o kahi kaʻina hana vulcanization holomua, e hōʻike ana i nā wili countersunk i hoʻokomo mua ʻia no ka hoʻokomo maʻalahi. Hoʻohana ka ʻike hoʻolālā koʻikoʻi i ke kūpaʻa kiʻekiʻe o ka ʻaʻahu o nā keramika e kū i ka abrasion mea ʻoiai ka papa rubber e omo i ka ikehu hopena, e hoʻokō ana i kahi hopena synergistic ma waena o ke kūpaʻa ʻaʻahu a me ka paʻakikī hopena.

Ma muli o ke ʻano hoʻoikaika hoʻololi pae o ka zirconia, hōʻike ʻo ZTA i ka paʻakikī haki kiʻekiʻe a me ke kūpaʻa ʻana i ka ʻaʻahu ma mua o nā keramika alumina maʻamau. Hōʻike ka noiʻi e hōʻike ana nā composites ZTA i loaʻa ka 20%-25% zirconia i ka hana kūpono ma lalo o nā kūlana hopena-abrasion koʻikoʻi. ʻO nā kikoʻī loea maʻamau e pili ana i: ka nui o ka nui ≥4.1-4.3 g/cm³, ka paʻakikī Rockwell (HRA) ≥90, ka paʻakikī haki (KIC) ≥3.70 MPa·m1/2, a me ka ikaika flexural >350 MPa. I nā hoʻokolohua ʻaʻahu paheʻe maloʻo, hiki i ka helu ʻaʻahu kikoʻī o nā composites ZTA ke haʻahaʻa e like me 10⁻⁹ mm³/(N·m), ʻoi aku ka maikaʻi ma mua o nā keramika alumina hoʻokahi pae a i ʻole zirconia.

ʻO ke kaʻina hana e pili ana i ka vulcanization wela i kāohi pono ʻia e hōʻoia i ka ikaika hoʻopaʻa kiʻekiʻe ma ka pilina keramika-lapo. Wahi a nā kūlana ʻoihana, ʻo ka ikaika hoʻopaʻa shear ma waena o ka keramika a me ka laholio e ʻoi aku ma mua o 3.5 MPa, me ka papa laholio ponoʻī e hōʻike ana i ka ikaika tensile o 12-15 MPa a me ka elongation i ka haki ʻana ma mua o 250%-400%. ʻO ka hoʻolālā hui vulcanized e pale pono i nā tile keramika mai ka hemo ʻana ma lalo o ka hopena, ʻoiai ka deformation rubber e hoʻopuehu i ke kaumaha i hoʻopaʻa ʻia, e pale ana i ka papa keramika mai ka haki palupalu. Hoʻopaʻa ka papa kila i ka paʻakikī o ke kūkulu ʻana i ka wā e kau ʻia ai ma nā pūpū lako.

Nā papa vulcanized rapa seramika ZTAHoʻohana nui ʻia i nā chutes hoʻoili, nā hoppers, a me nā ʻōpala o nā ʻōnaehana lawelawe mea nui kahi i ʻike nui ʻia ai ka hopena a me ka abrasion. Ke hoʻohālikelike ʻia me nā liners keramika alumina maʻemaʻe, hāʻawi ʻo ZTA ma mua o 2.5 mau manawa ʻoi aku ka lōʻihi o ke ola lawelawe ma lalo o nā kūlana abrasion hopena, ʻoiai ke emi nei kona kumukūʻai ma mua o nā keramika zirconia maʻemaʻe, e hāʻawi ana i ka uku kūpono loa. No nā noi e lawelawe ana i nā mea nui, nā kiʻekiʻe hāʻule kiʻekiʻe, a i ʻole nā ​​​​wikiwiki kahe kiʻekiʻe, ʻo nā papa vulcanized rubber ZTA kekahi o nā hopena palekana palekana hilinaʻi loa i loaʻa.