No ke aha ʻo tungsten carbide ka mea hana pono

ʻO ka tungsten carbide(WC) he pūhui i haku ʻia me ka refractory metala tungsten a me ka non-metallic carbon, nona nā hiʻohiʻona o ke kiʻekiʻe kiʻekiʻe, kiʻekiʻe hoʻoheheʻe kiʻekiʻe, kiʻekiʻe ikaika, kiʻekiʻe paʻakikī, kiʻekiʻe wela ke kūpaʻa, corrosion kūpaʻa, ʻaʻahu kūpaʻa a me ka maikaʻi uila a me ka thermal conductivity. , no laila he mea hana carbide kūpono.

Eia nō naʻe, ma muli o ka pilikia o ka brittleness a me ka paʻakikī paʻakikī o ka pauka WC maʻalahi, pono pinepine e hoʻohui i ka nui o ka binder e like me cobalt (Co), nickel (Ni), chromium (Cr), molybdenum (Mo), titanium ( Ti), keleawe (Cu) a me nā mea ʻē aʻe i ka hana ʻana i nā mea hana carbide hana kiʻekiʻe.

ʻO ke kikoʻī, me ka pauka WC ma ke ʻano paʻakikī a ʻo Co ma ke ʻano he mea hoʻopaʻa ʻoi aku ka kūpono no ka ʻoki ʻana i nā mea hana.Loaʻa iā ia ka conductivity thermal maikaʻi, he mea maikaʻi ia no ka ʻoki ʻana i ka wela wela mai ka piko o ka mea hana, e hōʻemi i ka wela wela a pale aku i ka wela a me ka palupalu o ka piko o ka mea hana;loaʻa iā ia ka ikaika flexural kiʻekiʻe a me ka paʻakikī paʻakikī, hiki ke hōʻemi pono i ka hiki ke ʻoki i ka wā e ʻoki ai;ʻoi aku ka maikaʻi o ka ʻoki ʻana (ʻoi aku ma mua o ke kila kiʻekiʻe), a hiki ke wili i kahi ʻoi ʻoi.

ʻūhā carbide simame ka pauka WC ma ke ʻano paʻakikī a ʻo Ni no ka mea ʻoi aku ka maikaʻi o ka hoʻopaʻa ʻana i nā ʻāpana kū i ka corrosion.ʻOi aku ka ikaika o kona pale ʻana i ka corrosion ma mua o nā mea hana tungsten a me ka cobalt carbide, kūpono ia no nā noi i nā kaiapuni me nā ʻano media corrosive.Eia kekahi, ua kūpono hoʻi nā sila carbide cemented WC-Ni no nā noi i ka haʻahaʻa haʻahaʻa, kiʻekiʻe kiʻekiʻe, vacuum a me ke kiʻekiʻe kiʻekiʻe.

ʻO ka WC, TiC a me Co nā hiʻohiʻona o ka paʻakikī kiʻekiʻe, ke kūpaʻa wela maikaʻi, ka ikaika compressive kiʻekiʻe, ke kūpaʻa oxidation maikaʻi, ka conductivity thermal maikaʻi ʻole a me nā mea ʻē aʻe, i kūpono no ka hana kila.

Pono e hoʻomaopopo i nā hōʻailona kino kiko'ī opaʻa paʻae loli me ka ratio like ʻole o nā mea maka.Inā hoʻopili ʻia kahi ʻāpana a i ʻole nā ​​​​papa he nui o ka carbide, carbide a me nā mea paʻakikī refractory ʻē aʻe ma luna o ka ʻili o ka paʻa paʻa, ʻoi aku ka paʻakikī o ka ʻaʻahu kiʻekiʻe a me ka paʻakikī kiʻekiʻe o ka alloy, no laila ʻoi aku ka maikaʻi no ka ʻoki wikiwiki. .