Ngā uku alumina Al2O3 polycrystalline kua whakaritea mō te ātete ki te kakahu pāmahana teitei

Te mahi a te uku konumohe waikura

1--Te pakeke teitei

Ko te pakeke Rockwell o ngā uku alumina ko HRA80-90, tuarua noa iho i te taimana te pakeke, he nui atu i te ātete ki te kakahu o te maitai me te maitai kore waikura.

2--Pai te Ātete ki te Mau

Ko te ātete kakahu o ngā uku alumina he rite ki te 266 ngā wā o te maitai manganese me te 171.5 ngā wā o te rino maka chromium teitei. I raro i ngā tikanga mahi ōrite, ka taea e ia te whakaroa i te roa o te ora o ngā taputapu kia tekau ngā wā.

3--Taumaha Māmā

Ko te mātotoru o ngā uku alumina he 3.7~3.95g/cm°, he haurua noa iho tēnei o te mātotoru o te rino me te maitai, ā, ka taea te whakaiti i te kawenga o ngā taputapu.

4--Whānuitanga o te Whakamahinga

E whakamahia whānuitia ana ngā uku alumina i roto i ngā mīhini, ngā muka whatu, ngā taputapu tapahi, te hauora, te kai, te matū, te rererangi me ētahi atu mara.

Ngā painga o ngā uku alumina:

1--He tino pai ngā āhuatanga ārai o ngā uku alumina. He iti noa te ngaronga auau teitei, ā, he pai te ārai auau teitei.

2--He ātete wera ngā uku alumina, he iti te tauwehenga o te whakawhānui wera, he kaha miihini teitei, ā, he pai te kawe wera.

3--He ātete matū ngā uku alumina, ā, he ātete whakarewa rewa hoki.

4--Kāore ngā uku alumina e mura, e kore e waikura, he kaha, e kore hoki e pakaru, kāore e taea te whakarite ki ētahi atu rauemi waro me ngā rauemi whakarewa me te kounga pai rawa atu.

5--He pai ake te ātete kakahu o ngā uku Alumina, he rite tonu te pakeke me te corundum, ka eke ki te pakeke Mohs 9, ka taea te whakataurite i tōna ātete kakahu ki ngā koranu tino pakeke.