ʻO ka paipu keramika alumina kūpaʻa-ʻaʻahu: ʻO ka hopena hope loa no ka pale ʻana i ka abrasion ʻoihana

ʻO nā ʻōnaehana paipu ʻoihana e lawe ana i nā mea abrasive—e like me ka pauka lanahu, ka lehu lele, ka slurry mineral, ka clinker sima, a me nā particulates kemika—e kū nei i kahi pilikia mau: ʻo ka ʻaʻahu ʻana o ka paia paipu e alakaʻi ana i ka hāʻule mua ʻana, ka manawa downtime i hoʻonohonoho ʻole ʻia, a me ka piʻi ʻana o nā kumukūʻai mālama. ʻO nā paipu kila kalapona maʻamau, ʻoiai ke paʻakikī a i ʻole ka alloyed, hōʻike pinepine i nā ola lawelawe i ana ʻia i nā mahina ma lalo o nā kūlana abrasion koʻikoʻi. ʻO ka paipu keramika alumina pale ʻaʻahu (i kapa ʻia hoʻi he paipu composite i hoʻopaʻa ʻia i ka ceramic) e hoʻoponopono i kēia pilikia ma o kahi ala ʻenekinia mea: e hoʻohui ana i ka paʻakikī loa a me ka inertness kemika o nā keramika alumina kiʻekiʻe me ka paʻakikī o ke ʻano o kahi ʻili waho kila.

ʻO nā keramika Alumina (Al₂O₃) kekahi o nā keramika kūkulu holomua i hoʻohana nui ʻia no nā noi pale ʻaʻahu. Loaʻa kā lākou hana koʻikoʻi mai ka ʻano kristal hexagonal α-Al₂O₃, ka mea e hāʻawi ana i ka mea me ka paʻakikī koʻikoʻi a me ka ikaika mechanical.

Nā paipu keramika pale ʻaʻahu alumina, i hana ʻia me nā liners alumini oxide kiʻekiʻe (Al₂O₃) i hoʻopaʻa ʻia i kahi pūpū kila kūkulu, hāʻawi i ke kūpaʻa kūikawā i ka ʻaʻahu abrasive, ka hopena o ka erosion, a me ka corrosion kemika. Me ka paʻakikī Mohs o 9, ka ikaika compressive e ʻoi aku ana ma mua o 850 MPa, a me ke ola lawelawe 10 a 30 mau manawa ma mua o nā paipu kila maʻamau, ua lilo kēia mau paipu composite i kūlana ʻoihana no nā ʻōnaehana lawe pneumatic i ka mining, ka hana mana, ka hana sima, ka hana kila, a me ka hana kemika.