Ka hopena o ke kaʻina hana hoʻoheheʻe ʻana o ka pauka titanium i ka hana

ʻO ka pauka metala i hoʻopaʻa ʻiaporoushana ʻia nā mea metala a i ʻole nā ​​pauka alloy e like me nā mea maka a ua hana ʻia a hoʻopaʻa ʻia i nā wela kiʻekiʻe. He mau mea porous ia me ka paa paa.

Kaʻina hana: kānana - isostatic kaomi - vacuum kiʻekiʻe wela sintering

Nā hiʻohiʻona hoʻolālā: Loaʻa i ka mea i ka nui o nā pores pili a i ʻole semi-pili. Hoʻokumu ʻia ke ʻano pore e ka hoʻopaʻa ʻana i nā ʻāpana pauka maʻamau a me ka ʻole. Hiki ke hoʻololi ʻia ka nui a me ka hāʻawi ʻana i nā pores a me ka nui o ka porosity e like me ka hui pū ʻana o ka pauka a me ka hana hoʻomākaukau. E hoʻokō i nā pono o ka mea kūʻai aku.

Nā mea maikaʻi o ka huahana: ka permeability maikaʻi, ka nui o ka pore controllable a me nā pores, ke ʻano kūpaʻa, ka pololei kānana kiʻekiʻe, ke kūpaʻa ʻana, nā waiwai mechanical maikaʻi, ka conductivity thermal maikaʻi, ka pale wela, a me nā waiwai dissipation wela, a hiki ke hoʻihoʻi ʻia a hoʻohana pinepine ʻia.

Nā hiʻohiʻona hana o nā mea porous titanium sintered:

1. 1) Uniform pore anawaena, stable pores, a kiʻekiʻe separation pono.

1. 2) ʻO ka porosity kiʻekiʻe, ke kūpaʻa filtration liʻiliʻi a me ka pono komo kiʻekiʻe.

1. 3) ʻO ke kūpaʻa kemika maikaʻi, ka waika a me ka pale ʻana i ka corrosion alkali, a me nā waiwai anti-oxidation.

1. 4) Paʻa ka ʻōnaehana morphological, ʻaʻohe mea e hāʻule, a hoʻokō i nā koi o ka hoʻomaʻemaʻe meaʻai a me ka GMP lāʻau.

1. 5) Nā waiwai mechanical maikaʻi, kaʻokoʻa haʻahaʻa haʻahaʻa a me ka nui o ke kahe.

1. 6) Loaʻa iā ia ka mana antimicrobial ikaika a ʻaʻole pili pū me nā microorganism.

1. 7) Hiki ke hana hou ʻia ma ka pūnaewele, maʻalahi e hoʻomaʻemaʻe a lōʻihi ke ola lawelawe.

1. 8) Biocompatibility maikaʻi loa, hiki ke hoʻohana nui ʻia i nā ʻoihana olaola, meaʻai, lāʻau lapaʻau a me nā ʻoihana olakino.

1. 9) ʻO ka hana pale hawewe electromagnetic maikaʻi loa.

1. 10) ʻO nā hiʻohiʻona damping maikaʻi a me ke kūpaʻa hopena.

ʻO ka Sintering kekahi o nā hana koʻikoʻi ma kaKaʻina MIM. ʻAʻole ia e wehe wale i ke koena binder akā e hoʻopau pū i nā pores ma waena o nā ʻāpana pauka, e hana ana i kaMIM huahanapaʻa paʻa a ʻaneʻane paʻa loa. ʻO kasintering o ka titaniumpono ke alo i ka wela kiʻekiʻe. ʻO ke kaiapuni, pono e pale ʻia ke kaʻina hana sintering me ke kinoea argon e like me ka hiki. Hoʻonohonoho ʻia ka manawa sintering i kēia hoʻāʻo e mālama mau i ka mahana no 120 mau minuke, a ʻo ka wela kiʻekiʻe he 1220 ℃, 1240 ℃, 1250 ℃, 1270 ℃ a me 1290 ℃ no nā ʻāpana huki TC4 a me nā ʻāpana puni. Hoʻopili ʻia nā ʻāpana kino.

ʻO ke kaʻina hana sintering o nā ʻāpana tensile TC4

ʻO ke kaʻina hana sintering o nā ʻāpana pōʻai

Mai ke kaʻina hana sintering o nā ʻāpana pōʻai, hiki ke ʻike ʻia i ka wā e lōʻihi ai ka TC4 no 120 mau minuke, hiki ke loaʻa ka densification kiʻekiʻe ma 1250 ° C, a e emi iki ka mānoanoa i ka piʻi ʻana o ka mahana. ʻO kēia ke kumu o ka ulu ʻana o ka palaoa i nā wela kiʻekiʻe loa. ʻOi aku ka nui o nā āpau ma waena o nā palena o ka palaoa, ʻo ia hoʻi ka hopena o ka ikaika o nā ʻāpana tensile maʻamau ma lalo o 1250 ° C ma hope o ka wela kiʻekiʻe.

TC4 kiʻi metallographic ma 1250 ℃

Nā ʻāpana pōʻai TC4 i hoʻopaʻa ʻia

No ka hoʻomaopopo ʻana i ka pilina ma waena o nā mahana like ʻole a me nā manawa paʻa a me TC4 sintering densification, ua koho mākou i 1240 ° C, 1250 ° C a me 1270 ° C e hana i nā hoʻokolohua e like me ka hōʻike ʻana ma lalo nei. ʻO ka lewa sintering ʻo ia ka ʻea kinoea argon.

ʻO ka lewa sintering he argon

ʻIkepili a me ka nānā ʻana

Wahi a ka ʻikepili kiko o ka laʻana ma hope o ka sintering, ʻaʻole paʻakikī ke ʻike i ke kiʻekiʻe i loaʻa ma ka hoʻopaʻa ʻana i ka mahana ma 1250 ° C no 120-180 mau minuke ʻoi aku ka kiʻekiʻe ma mua o ka loaʻa ʻana o nā kaʻina hana ʻē aʻe. Ma muli o ka pilina ma waena o ke kaʻina hana sintering o nā ʻāpana huki TC4 a me nā ʻāpana pōʻai TC4 i hoʻopaʻa ʻia, manaʻo mākou ʻoi aku ka kiʻekiʻe ma mua o ka loaʻa ʻana o nā kaʻina hana ʻē aʻe. ʻO ka densification a me ka ikaika hua e kūlike, no laila ke kiʻekiʻe loa ka densification a me ka mechanical i ka paʻa ʻana i ka mahana ma 1250 ° C no 120min ~ 180min; ʻO kēia no ka mea ʻoi aku ka kiʻekiʻe o ka mahana a me ka pōkole o ka manawa paʻa ʻaʻole e hoʻomaikaʻi i ke kaʻina sintering titanium alloy. Hoʻopili maikaʻi ʻia nā kristal alloy Titanium. Pēlā nō, ʻo ka haʻahaʻa haʻahaʻa a me ka mālama ʻana i ka wela no ka wā lōʻihi e hoʻopau mau ʻia ka ʻili o ka pauka ma muli o ka lohi o ka diffusion o nā palena o ka palaoa. I ka wā o ka neʻe ʻana a me ka hoʻopuehu ʻana o nā palena ʻai, ʻaʻole hiki ke hoʻokō ʻia ka uhi maikaʻi a me ka paheʻe o ka lattice kristal. Ma kēia ʻano, aia kekahi mau āpau i loko ʻaʻole hiki ke hoʻopau ʻia, ʻaʻole hiki ke hoʻokō i ka densification maikaʻi aʻe.

i ka hopena

He paʻakikī ke kaʻina hana ʻenehana o MIM titanium alloy, a he nui nā mea e pili ana i ka densification hope a me nā waiwai mechanical o ka huahana. Ma lalo o kēia mau kūlana hoʻokolohua, ma hope o ka noʻonoʻo piha ʻana i ka nui o ka huahana a me nā waiwai mechanical, ua hoʻohana mākou i ka umu ahi metala kiʻekiʻe HP e hoʻomau i ka sinter ma 1250°C no 120 mau minuke. ʻAe kēia i ka TC4 e loaʻa i kahi kiʻekiʻe kiʻekiʻe a loaʻa ka ikaika hua nui loa, e paʻa ana i ke ala no ka ʻoihana ʻoihana o MIM-TC4.