Loaʻa nā mea hoʻololi wela papa ma nā noi ʻoihana he nui a hoʻohana mua i nā pā metala e hoʻololi i ka wela ma waena o nā wai ʻelua.
Ke ulu wikiwiki nei ko lākou hoʻohana ʻana no ka mea ʻoi aku ka maikaʻi o nā mea hoʻololi wela maʻamau (ʻo ka mea maʻamau he paipu wili i loko o kahi wai e hele ai i loko o ke keʻena i loko o kahi wai ʻē aʻe) no ka mea ʻo ka wai e hoʻomaʻalili ʻia ʻoi aku ka nui o ka hoʻopili ʻana i ka ʻāina, kahi e hoʻonui ai i ka hoʻololi wela a hoʻonui nui i ka loli o ka wela.
Ma kahi o nā coils e hele ana i loko o nā keʻena, i loko o ka pā wela exchanger, aia nā keʻena ʻelua alternating, maʻamau o ka hohonu hohonu, i hoʻokaʻawale ʻia e nā papa metala corrugated ma ko lākou mau surfaces nui loa.
ʻO ia mau papa hoʻololi wela i hana maʻamau me ka hoʻohana ʻana i ka stamping a i ʻole ka mīkini maʻamau e like me ke kaha kiʻi hohonu, akā i kēia manawa ua hōʻike ʻia ke kiʻi kiʻi kiʻi kiʻi (PCE) i ʻoi aku ka maikaʻi a me ke kumu kūʻai ʻoihana hana ʻenehana i loaʻa no kēia noi ikaika. ka ikehu, ka hoʻolālā a me ka hana ʻana i nā mea hana paʻakikī, a ʻo ka mea hana ʻO ka ʻino o nā mea hana mīkini a me nā mea paʻa he mau poʻo.
ʻO ka manawa pinepine, hiki i nā ʻaoʻao ʻelua o ka pā wela wela nā hiʻohiʻona paʻakikī i kekahi manawa ma mua o ka hiki ke hoʻopaʻa ʻia a me ka mīkini, akā hiki ke hoʻokō maʻalahi me ka hoʻohana ʻana i ka PCE. Eia kekahi, hiki i ka PCE ke hana i nā hiʻohiʻona ma nā ʻaoʻao ʻelua o ka pā i ka manawa like, mālama i ka manawa nui, a hiki ke hoʻopili ʻia ke kaʻina hana i nā ʻano metala like ʻole, me ke kila kila, Inconel 617, aluminika, a me ka titanium.
Ma muli o kekahi mau hiʻohiʻona o ke kaʻina hana, hāʻawi ʻo PCE i kahi koho maikaʻi no ka hoʻopaʻa ʻana a me ka mīkini ʻana i nā palapala metala. nā kihi hiki i ka ʻino.
Hoʻohui ʻia me ka hoʻohana ʻana o PCE i nā mea hana kikohoʻe maʻalahi a haʻahaʻa haʻahaʻa, hāʻawi ia i kahi kumu kūʻai kūpono, kiʻekiʻe a me ka wikiwiki o ka hana ʻana i nā ʻano hana machining maʻamau a me ka stamping.
Hiki i ka mīkini a me ka stamping ke hana i nā hopena maikaʻi ʻole ma ka metala ma ka laina ʻokiʻoki, e hoʻololi pinepine i ka mea i hana ʻia a waiho ʻia nā burrs, nā ʻāpana wela, a me nā papa hana hou.
ʻO kekahi kumu e noʻonoʻo ai i ke kaʻina koho, ʻo ia ka mānoanoa o ka mea e hana ʻia. hoʻohana ʻia i nā mea hoʻololi wela pā, me ka ʻole o ka hoʻohaumia ʻana i ka palahalaha, he mea koʻikoʻi ia i ka pono o ka ʻaha. mea nui.
ʻO kahi wahi koʻikoʻi kahi e hoʻohana ʻia ai nā papa i loko o nā noi wahie i hana ʻia me ke kila kila, aluminika, nickel, titanium, keleawe a me kahi ʻano o nā ʻāpana kūikawā.
Ua ʻike ʻia nā ʻāpana metala i loko o nā wahie he nui nā mea maikaʻi ma mua o nā mea ʻē aʻe. I ka manawa like, ikaika loa lākou, hāʻawi i ka conductivity uila maikaʻi loa no ka hoʻoluʻu maikaʻi ʻana, hiki ke hana ʻia i ka lahilahi me ka hoʻohana ʻana i ka etching, e hopena i nā puʻupuʻu pōkole, a ʻaʻohe ʻaoʻao kuhikuhi i loko o ke kahawai.
ʻO ke kaʻina hana PCE e hōʻoia i ka hoʻomanawanui hou ʻana ma nā ana papa kī āpau, e like me ka hohonu o ke ea a me ka geometry manifold, a hiki ke hana i nā ʻāpana i nā kikoʻī paʻa paʻa.
ʻO nā ʻoihana ʻē aʻe e hoʻohana ana i nā pepa i kālai ʻia me nā ʻenehana linear, aerospace, petrochemical a me nā ʻoihana kemika.
ʻO nā mea hoʻololi wela i hana ʻia me ka PCE he ikaika loa a maikaʻi hoʻi, hiki ke kū i ke kaomi o 600 bar i ka wā e hoʻololi ai i kahi ʻano wela mai cryogenics a i 900 degere Celsius. Hiki ke hoʻohui i ʻoi aku ma mua o ʻelua mau kahawai kaʻina i hoʻokahi ʻāpana a hoʻokō i nā koi ma luna o ka paipu a me nā kiwi e hoʻemi nui ʻia.
ʻO nā koi o kēia lā no ka maikaʻi a me ka mālama ʻana i ka wela e hōʻike i nā pilikia nui i nā mea hoʻomohala hoʻomohala. ʻO ka miniaturization o nā mea he nui i ka uila a me ka ʻenehana microsystem hana i kapa ʻia nā wahi wela wela, kahi e koi ai i ka hoʻoheheʻe wela maikaʻi e hōʻoia i ke ola lōʻihi.
Ke hoʻohana nei i ka 2D a me ka 3D PCE, hiki ke hana ʻia nā microchannels me nā ākea a me nā hohonu i wehewehe ʻia i nā mea hoʻololi wela no ke koho ʻana i ka media dissipation wela ma kahi liʻiliʻi loa.
Eia kekahi, mai ke kaʻina hana etching e hoʻoulu i ka hoʻolālā ʻana a me ke kūʻokoʻa geometric, hiki ke hoʻoikaika ʻia ke kahe kūwaho e kūʻē i ke kahe laminar ma o ka hoʻohana ʻana i nā ʻaoʻao wavy channel a me ka hohonu. a i ʻole ke kumu kūʻai ʻole e hana me ka hoʻohana ʻana i nā kaʻina hana hana ʻē aʻe.
Hoʻohana ʻo PCE specialist micrometal GmbH i nā mea hana optoelectronic kumu kūʻai hoʻokūkū no ka hana ʻana i nā mea hana kiʻekiʻe me ke kiʻekiʻe kiʻekiʻe o ka hana hou ʻana.
Hiki ke hoʻopili ʻia nā papa microchannel pākahi (e laʻa, ma ka diffusion welding) i nā geometries 3D like ʻole. Hoʻohana ʻo Micrometal i kahi ʻoihana hoa hana ʻike e hāʻawi i nā mea kūʻai aku i ke koho e kūʻai i nā papa microchannel pākahi a i ʻole nā ​​poloka hoʻololi wela microchannel.
He mea metala a loaʻa i ʻelua mau mea kemika a ʻoi aku paha, ʻo kekahi o ia mea he metala.
E ho'ēmi i ka piʻi ʻana o ka wai ma ka hāmeʻa/mea hana ma ka hana ʻana. ʻO ka maʻamau ma ke ʻano wai, e like me ka soluble a i ʻole nā ​​hui kemika (semi-synthetic, synthetic), akā hiki ke hoʻoikaika ʻia i ka ea a i ʻole nā ​​​​gases ʻē aʻe. ka wai ʻoki semi-synthetic; ka wai ʻoki ʻaila hoʻoheheʻe; wai ʻoki synthetic.
1. Ka puunaue ana o kekahi mea i loko o ke kinoea, ka wai, a me ka paakiki e hana like ai ka haku mele ma na wahi a pau.2. Hoʻoneʻe wale ʻia kahi ʻātoma a i ʻole mole i kahi wahi hou i loko o ka mea.
ʻO kahi hana e kahe ai ka uila ma waena o kahi mea hana a me kahi mea hana conductive ma o ka electrolyte. Hoʻomaka i kahi hopena kemika e hoʻoheheʻe i ka metala mai ka mea hana i ka wikiwiki hoʻomalu.
E like me ka mīkini rotary i loko o ka mīkini mea hana, hiki ke noʻonoʻo ʻia ka motika linear ma ke ʻano he motika rotary magnet mau loa, ʻoki axially i ke kikowaena, a laila wehe ʻia a waiho pālahalaha.
ʻOi aku ka nui o nā ʻāpana ākea i loko o ke ʻano o ka ʻili. Lie; ʻoʻoleʻa.
ʻO Kauka Michael J. Hicks ka Luna Hoʻokele o ka Center for Business and Economic Research a me George and Francis Ball Distinguished Professor of Economics ma Ball State University's Miller School of Business. Ua loaʻa iā Hicks kāna Ph.D. a me MA ma Economics mai ke Kulanui o Tennessee a me kahi BA ma Economics mai ka Virginia Military Institute. Ua kākau ʻo ia i ʻelua mau puke a ʻoi aku ma mua o 60 mau puke naʻauao e kālele ana i nā kulekele aupuni a me nā kūloko, e pili ana i ke kulekele ʻauhau a me ka hoʻolimalima a me ka hopena o Walmart ma nā ʻoihana kūloko.