Ua hoʻomohala mālie ʻia ke daimana kristal hoʻokahi ma hope o nā makahiki 1950.Hoʻohui ʻia ia mai ka graphite ma ke ʻano he mea maka, hoʻohui ʻia me ka catalyst, a hoʻopaʻa ʻia i ka wela kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe.ʻO ke daimana polycrystalline artificial (PCD) he mea polycrystalline i hoʻokumu ʻia e ka polymerization o ka pauka daimana me ka hoʻohana ʻana i nā mea hoʻopaʻa metala e like me Co, Ni, a me nā mea ʻē aʻe. metallurgy i kāna hana hana.
I ka wā o ke kaʻina hana sintering, ma muli o ka hoʻohui ʻana o nā mea hoʻohui, ua hoʻokumu ʻia kahi alahaka hoʻopaʻa i haku nui ʻia ʻo Co, Mo, W, WC, a me Ni ma waena o nā kristal PCD, a paʻa paʻa nā daimana i loko o ke kahua paʻa i hana ʻia e ke alahaka paʻa.ʻO ka hana o ka mea hoʻopaʻa metala ʻo ia ka paʻa paʻa ʻana i ke daimana a hoʻohana piha i kāna ʻoki ʻoki.Eia kekahi, ma muli o ka hāʻawi manuahi ʻana o nā kīʻaha i nā ʻaoʻao like ʻole, paʻakikī ke hoʻolaha ʻia nā māwae mai kekahi ʻai i kekahi, e hoʻomaikaʻi nui ana i ka ikaika a me ka paʻakikī o PCD.
Ma kēia pukana, e hōʻuluʻulu pōkole mākou i kekahi o nā ʻano oPCD hookomo.
1. Ultra kiʻekiʻe paakiki a me ka lole pale: unparalleled i loko o ke ano, mea i ka paakiki a hiki i 10000HV, a me ko lakou aahu ke kū'ē kokoke i hoʻokahi haneli o ka Carbide hoʻokomo;
2. ʻO ka paʻakikī, ke kūpaʻa ʻana, ka microstrength, ka paʻakikī i ka wili ʻana, a me ka hoʻohālikelike ʻana ma waena o nā kristal daimana aniani anisotropic a me nā mea hana hana ʻokoʻa loa i nā mokulele aniani a me nā ʻano.No laila, i ka hoʻolālā ʻana a me ka hana ʻana i nā mea hana daimana kristal hoʻokahi, pono e koho pololei i ke kuhikuhi ʻana i ke aniani, a pono e hoʻokō ʻia ka orientation kristal no nā mea maka daimana.ʻO ke koho ʻana i nā ʻāpana ʻoki mua a hope o nā mea ʻoki ʻoki PCD he mea koʻikoʻi i ka hoʻolālā ʻana i nā mea hana lathe PCD aniani;
3. Haʻahaʻa friction coefficient: ʻO nā mea hoʻokomo daimana he haʻahaʻa haʻahaʻa haʻahaʻa i ka wā e hana ai i kekahi mau mea metala non-ferrous i hoʻohālikelike ʻia me nā mea hoʻokomo ʻē aʻe, ʻo ia ka hapalua o ka carbide, ma kahi o 0.2.
4. ʻOi loa ka ʻoki ʻoki PCD, a hiki i ka radius blunt o ka ʻoki ʻoki ke hiki i ka 0.1-0.5um.A hiki ke hoʻohana ʻia nā mea hana daimana kristal hoʻokahi ma ka laulā o 0.002-0.005um.No laila, hiki i nā mea hana daimana maoli ke hana i ka ʻoki ʻoki ʻokiʻoki a me ka machining ultra-precision.
5. ʻO ka coefficient o ka hoʻonui wela o ke daimana me ka haʻahaʻa haʻahaʻa o ka hoʻonui ʻana i ka wela ka liʻiliʻi ma mua o ka carbide cemented, ma kahi o 1/10 o ke kila kiʻekiʻe.No laila, ʻaʻole hana nā mea hana ʻoki daimana i ka deformation thermal koʻikoʻi, ʻo ia hoʻi ka liʻiliʻi o ka hoʻololi ʻana i ka nui o ka mea hana ma muli o ka ʻoki ʻana i ka wela, ʻo ia ka mea nui no ka pololei a me ka ultra precision machining me nā koi kikoʻī kiʻekiʻe.
Hoʻohana i nā mea hana ʻoki daimana
PCD hookomohoʻohana nui ʻia no ka ʻokiʻoki / boring / wili kiʻekiʻe o nā metala non-ferrous a me nā mea metala non-ferrous, kūpono no ka hana ʻana i nā ʻano mea ʻaʻahu ʻole e like me ke aniani fiber a me nā mea ceramic;ʻO nā metala non-ferrous like ʻole: aluminika, titanium, silicon, magnesium, etc., a me nā kaʻina hana hoʻopau metala ʻole;
Nā pōʻino: maikaʻi ʻole ke kūpaʻa wela.ʻOiai ʻo ia ka mea ʻokiʻoki me ka paʻakikī kiʻekiʻe loa, ʻo kona kūlana palena ma lalo o 700 ℃.Ke ʻoi aku ka mahana o ka ʻoki ʻana ma mua o 700 ℃, e nalowale ana kona paʻakikī kiʻekiʻe kiʻekiʻe.ʻO ia ke kumu i kūpono ʻole ai nā mea hana daimana no ka hana ʻana i nā metala ferrous.Ma muli o ka maikaʻi ʻole o ka paʻa o nā daimana, e launa pū ka mea kalapona i loko o nā daimana me nā ʻātoma hao ma nā wela kiʻekiʻe, a e hoʻololi ʻia i ka hana graphite, e hoʻonui nui ana i ka pōʻino o nā mea hana.
Ka manawa hoʻouna: Mei-17-2023