ʻO Tungsten Carbide Paʻakikī

He kiʻekiʻe loa ka paʻakikī o ka tungsten carbide, ʻo ia kekahi o nā mea me ka paʻakikī kiʻekiʻe loa ma waena o nā metala, a hiki i kona paʻakikī Mohs ke hiki i 9-9.5.Hana kēia i ka tungsten carbide i mea kūpono no ka hana ʻana i nā mea hana paʻakikī kiʻekiʻe a me nā pahi.

ʻO ka tungsten carbide ka mea maʻamau i hui pū ʻia me nā mea metala e like me ke kalapona tungsten a me nā mea paʻa e like me ka cobalt a me ka nickel, a ʻo kona paʻakikī ma kahi o 8-9.I waena o lākou, ʻo ka tungsten carbide kekahi o nā ʻāpana me ka paʻakikī kiʻekiʻe loa i ka carbide cemented, a hiki i kona paʻakikī Mohs ke hiki i 9-9.5, no laila ua hoʻohana nui ʻia i ka hana ʻana i nā mea hana paʻakikī kiʻekiʻe a me nā pahi.ʻO ka carbide cemented me ka cobalt hou aʻe i ka haku mele ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion a me ke kūpaʻa ʻana.

ʻO HRA89-92.5 ka paʻakikī paʻakikī, he kiʻekiʻe loa, no laila paʻakikī ke hana i nā mea hana paʻakikī.ʻO ka honua ʻano ʻano paʻakikī mua loa mai 1923, i ka manawa i manaʻo koke ai ka ʻepekema Kelemania ʻo Schloetter, ua hoʻohui ʻia ka pauka tungsten carbide i 10% ~ 20% cobalt, i hana ʻia i ka tungsten carbide a me ka cobalt hou.
ʻO Carbide ka paʻakikī o 86 a 93HRA
Hana ʻia ka paʻa paʻa i nā ʻano like ʻole o ka refractory metala carbide e like me nā mea maka, kona paʻakikī maikaʻi, ke kūpaʻa a me ke kūpaʻa corrosion, i kapa ʻia ʻo nā niho ʻoihana.Akā nui kona brittleness, ʻaʻole hiki ke machining, paʻakikī ke hana i ke ʻano o nā mea paʻakikī.
ʻO ka paʻa paʻa mua loa mai ka makahiki 1923, ʻo ka mea ʻepekema Kelemania ʻo Schloetter.ʻO ka mea i hana ʻia o ka tungsten carbide a me ka cobalt hou alloy, ʻoi loa ka paʻakikī, ʻo ia ke ʻano mua o ka honua paʻa paʻa, 1929, ʻo ka ʻepekema ʻAmelika ʻo Schwarzkopf e hoʻomaikaʻi, ua hoʻomohala ʻia ka alloy paʻakikī.

ʻOi aku ka kiʻekiʻe o ka paʻakikī paʻakikī ma mua o ka metala maʻamau, no laila hoʻohana nui ʻia kona hoʻohana ʻana e ʻoki i ka metala maʻamau.Me ka hoʻonui wikiwiki ʻana o ka ʻoihana kaʻa Kina, ke piʻi nei ka koi no ka ʻoki ʻana i nā mea hana, a ke hoʻonui nei hoʻi ka mākeke no ka carbide cemented.