ʻO nā pahi kīhini ʻo Ruitai: ʻO kāu kumu kumu no nā pahi kīhini maʻamau i hoʻonohonoho ʻia mai Kina
ʻLelo
ʻO nā pahi kīhini ʻo Ruitai: ʻO kāu kumu kumu no nā pahi kīhini maʻamau i hoʻonohonoho ʻia mai Kina
ʻElua ʻano o nā ʻano hana uhi mea hana maʻamau: ka waiho ʻana i ka mahu mahu (cvd) a me ka waiho ʻana o ka mahu kino (pvd) i kēia manawa. I nā makahiki i hala iho nei, ua ʻike ʻia kekahi mau kaʻina hana hoʻopili hou, kahi kūpono no ka noi.
CVD
ʻO ke ʻano CVD, nona ka atomic deposition, he ʻano hana ia e hoʻokumu ai i ka papa deposition paʻa ma ka ʻili o ka matrix wela me ka hoʻohana ʻana i ka mahu, hydrogen a me nā mea kemika ʻē aʻe o ka halide metala ma ke kiʻekiʻe o 950 ~ 1050 ℃. Aia i loko o ke kaʻina hana ʻekolu mau ʻanuʻu: ka mahu ʻana o nā mea, ka lawe ʻana i kahi kokoke i ka matrix a me ka hoʻokumu ʻana o ka overlay ma ka matrix.
Ma waena o nā ʻano hana cvd āpau, ʻo ka hoʻoheheʻe ʻana i ka ion vacuum a me ka hoʻoulu ʻana i ka magnetron ion ka mea i hoʻohana nui ʻia. Hoʻohana nui ʻia ka ʻenehana cvd no ka uhi ʻana o ka ʻili o nā mea ʻoki carbide cemented, kūpono ia no ka wikiwiki wikiwiki a me ka semi-finishing o ka ʻoki ʻoki a me ke kaumaha.
Ke hoʻohālikelike ʻia me nā ʻano hana ʻē aʻe, ʻaʻole i loaʻa i ke ʻano cvd nā pono o nā mea maʻalahi, nā kaʻina hana makua, akā loaʻa pū kekahi mau pono:
Nui nā ʻano sediments, hiki ke uhi ʻia me nā metala, nā ʻāpana, carbide, nitride, borides, oxides, carbon nitrides, oxygen nitrides, hydro-carbon nitrides, etc. Me ka permeability kiʻekiʻe a me ke kūlike, hiki ke loaʻa nā uhi multilayer me nā ʻāpana like ʻole, a ʻo ka mānoanoa o ka uhi. He kiʻekiʻe ka helu deposition a maʻalahi ke hoʻomalu. Loaʻa ka hoʻomaʻemaʻe kiʻekiʻe a me nā hua liʻiliʻi a paʻa. Hiki i ka ho'opili ikaika ke loa'a ka uhi mānoanoa. ʻO ke kumukūʻai kaʻina hana haʻahaʻa, kūpono no ka hana nui.
PVD
ʻO ke ʻano PVD ka wehe ʻana i nā mea mai nā kumu i hoʻopaʻa ʻia e nā ʻano kino e like me ka evaporation a i ʻole ka sputtering, a laila e waiho i kēia mau ions energetic ma luna o ka substrate a i ʻole ka ʻāpana ʻāpana e hana i kahi papa kiʻiʻoniʻoni ma o ka vacuum a semi-vacuum space. ʻO ka hopena o ka mahu o nā ʻātoma metala i hoʻoheheʻe ʻia a i ʻole ka sputtered e alakaʻi i ka waiho ʻana o nā pūhui i koi ʻia ma ka ʻili mea hana. Hiki ke uhi ʻia ka uhi pvd me ka titanium nitride, titanium carbon nitride, alumini titanium nitrogen pūhui, a me nā metala refractory like ʻole o ka carbide a me nā nitrides.
Hoʻohana nui ʻia ka ʻenehana PVD i ka mālama ʻana i ka ʻili o nā mea hana carbide cemented a me nā mea hana kila kiʻekiʻe. Ua hoʻohana nui ʻia i ka uhi ʻana i ka mālama ʻana i ka bit carbide cemented, milling cutter, reamer, tap, special-shaped tool, welding tool a pēlā aku.
MT-CVD
Hiki ke kiʻi ʻia ka uhi ʻana o ka tcn me ka morphology crystalline fibrous fibrous ma o ka hoʻoheheʻe ʻana o ka mahu (MT-CVD) ma 700 ~ 900 ℃. Hiki i ka mānoanoa o ka uhi ke hiki i ka 8 ~ 10μm, a hiki ke a2o3、tin ma ka papa honua e ka ʻenehana cvd.
He kūpono ka laula pani pani MT-CVD no ka wikiwiki kiʻekiʻe, ke kiʻekiʻe kiʻekiʻe, ka ukana nui, nā kūlana ʻoki maloʻo, ʻoi aku kona ola ma kahi o ʻelua ʻoi aku ka kiʻekiʻe ma mua o ko ka pale uhi maʻamau. ʻO ka cvd kumu hoʻihoʻi nui o ke ʻano he kiʻekiʻe ka mahana deposition, a ʻo ka mea hana annealing a me ka deformation e hiki mai i ka wā e uhi ʻia ai ka mea hana kila kila. No laila pono e kinai ʻia ka mea hana i waiho ʻia.
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