Liquid nitrogen: Nitrogen gas na steeti mmiri mmiri. Inert, enweghị agba, enweghị isi, anaghị emebi emebi, anaghị ere ọkụ, oke okpomọkụ cryogenic. Nitrogen na-etolite ọtụtụ ikuku (78.03% site na olu na 75.5% site n'ịdị arọ). Nitrogen adịghị arụ ọrụ ma ọ dịghị akwado combustion. Frostbite kpatara site na oke oke endothermic kọntaktị n'oge vaporization.
Liquid nitrogen bụ ebe oyi dị mma. N'ihi ihe ndị pụrụ iche ya, nitrogen mmiri mmiri ejirila nwayọọ nwayọọ na-elebawanye anya na ndị mmadụ ghọtara. A na-ejikarị ya eme ihe na ịzụ anụmanụ, ụlọ ọrụ ahụike, ụlọ ọrụ nri, na mpaghara nyocha cryogenic. Na ngwa elektrọnik, metallurgy, ikuku ikuku, nrụpụta igwe na akụkụ ndị ọzọ nke ngwa a na-agbasawanye ma na-etolite.
Cryogenic superconducting
Àgwà pụrụ iche nke Superconductor, nke mere na o yikarịrị ka a ga-eji ya mee ihe n'ụdị dị iche iche. A na-enweta Superconductor site n'iji nitrogen mmiri mmiri kama helium mmiri mmiri dị ka ihe na-eme ka ọ dịkwuo mma, nke na-emepe ngwa nke nkà na ụzụ na-arụ ọrụ n'ọtụtụ dịgasị iche iche ma na-ewere ya dị ka otu n'ime nnukwu ihe sayensị mepụtara na narị afọ nke 20.
Superconducting magnetik levitation nkà bụ a superconducting seramiiki YBCO, mgbe superconducting ihe na-mma na mmiri mmiri nitrogen okpomọkụ (78K, nhata na -196 ~ C), si nkịtị mgbanwe na superconducting ala. Ebe ndọta a na-emepụta site na mgbanaka mgbanaka nke ụzọ egwu ahụ, ma ọ bụrụ na ike ahụ karịrị ịdị arọ nke ụgbọ oloko, enwere ike kwụsịtụ ụgbọ ala ahụ. N'otu oge ahụ, akụkụ nke oghere ndọta na-ejide n'ime superconductor n'ihi mmetụta magnetik na-agbanye n'oge usoro jụrụ oyi. Ọnyà ndọta a na-adọrọ mmasị na oghere ndọta nke egwu ahụ, n'ihi ma nchụso na mmasi, ụgbọ ala ahụ na-anọsi ike n'elu egwu ahụ. N'adịghị ka mmetụta izugbe nke mmegide nwoke na nwanyị na-enwe mmasị nwoke na nwanyị n'etiti magnets, mmekọrịta dị n'etiti superconductor na mpụga magnetik ma na-adọta ibe ha, nke mere na ma superconductor na magnet ebighị ebi nwere ike iguzogide ike ndọda nke onwe ha ma kwụsịtụ ma ọ bụ kpọgidere elu n'okpuru ibe ha.
Ngwa eletrọnịkị mmepụta na nnwale
Nyochaa nrụgide gburugburu ebe obibi bụ ịhọrọ ọnụ ọgụgụ nke ihe nlereanya gburugburu ebe obibi, tinye ihe kwesịrị ekwesị nke nrụgide gburugburu ebe obibi na akụrụngwa ma ọ bụ igwe dum, ma mee ka usoro nhazi nke akụkụ ahụ dị, ya bụ, ntụpọ na usoro mmepụta na ntinye, ma nye mgbazi ma ọ bụ ngbanwe. Nyochaa nrụgide gburugburu ebe obibi bara uru ịnakwere okirikiri okpomọkụ yana ịma jijiji enweghị usoro. Nnwale okirikiri okpomọkụ bụ ịnakwere mgbanwe mgbanwe okpomọkụ dị elu, nnukwu nrụgide okpomọkụ, nke mere na akụkụ nke ihe dị iche iche, n'ihi nkwonkwo ọjọọ, ihe ahụ nke onwe ya asymmetry, ntụpọ na usoro nke nsogbu zoro ezo na agile ọdịda, na-anabata mgbanwe okpomọkụ nke 5 ℃ / min. Oke okpomọkụ bụ -40 ℃, +60 ℃. Ọnụ ọgụgụ nke cycles bụ 8. Dị otú ahụ a Nchikota gburugburu ebe obibi parameters na-eme ka mebere ịgbado ọkụ, clipping akụkụ, components nke onwe ha ntụpọ kpughere ọzọ doro anya. Maka ule okirikiri oke okpomọkụ, anyị nwere ike ịtụle nnabata nke ụzọ igbe igbe abụọ. Na gburugburu ebe a, ekwesịrị ịme nyocha na ọkwa.
Liquid nitrogen bụ ụzọ dị ngwa ma baa uru karị maka ichebe na ịnwale akụrụngwa eletrọnịkị na bọọdụ sekit.
Cryogenic nkà egwe ọka
Cryogenic Planetary bọọlụ igwe nri bụ mmiri mmiri nitrogen gas na-aga n'ihu ntinye n'ime mbara igwe bọọlụ kwadebere na a okpomọkụ ichebe cover, oyi ikuku ga-adị elu ọsọ adiana nke okpomọkụ eme site na bọl egweri tank ozugbo absorption, nke mere na bọl egweri tank nwere ihe, egweri bọl bụ mgbe niile na a ụfọdụ cryogenic gburugburu ebe obibi. Na gburugburu ebe obibi cryogenic mixing, ezi egweri, ọhụrụ ngwaahịa mmepe na obere ogbe mmepụta nke elu-tech ihe. Ngwaahịa ahụ dị ntakịrị na nha, zuru oke, dị elu na nrubeisi, obere mkpọtụ, nke a na-ejikarị eme ihe na nkà mmụta ọgwụ, ụlọ ọrụ kemịkalụ, nchebe gburugburu ebe obibi, ụlọ ọrụ ọkụ, ihe ụlọ, metallurgy, ceramics, minerals na akụkụ ndị ọzọ.
Nkà nzigharị akwụkwọ ndụ akwụkwọ ndụ
Cryogenic ọnwụ bụ ojiji nke cryogenic mmiri mmiri dị ka mmiri mmiri nitrogen, mmiri mmiri carbon dioxide na oyi ikuku na-efesa na mbepụ usoro nke igbutu mpaghara, na-akpata mbelata mpaghara cryogenic ma ọ bụ ultra-cryogenic steeti, na-eji cryogenic brittleness nke workpiece n'okpuru cryogenic ọnọdụ, melite workpiece igbutu machinability, ngwá ọrụ ndụ na workpiece elu mma. Dị ka ihe dị iche nke jụrụ oyi, cryogenic ọnwụ nwere ike kewaa n'ime jụụ ikuku ọnwụ na mmiri mmiri nitrogen jụrụ. Cryogenic jụụ ikuku ọnwụ usoro bụ site spraying -20 ℃ ~ -30 ℃ (ma ọ bụ ọbụna ala) cryogenic airflow na nhazi akụkụ nke ngwá ọrụ n'ọnụ, na weere na Chọpụta osisi mmanu (10 ~ 20m 1 kwa awa), ka na-egwu ọrụ nke jụrụ, mgbawa mwepụ, mmanu mmanu. Tụnyere na omenala ịcha, cryogenic jụrụ ịcha nwere ike melite nhazi nnabata, melite workpiece elu àgwà, na ọ fọrọ nke nta ọ dịghị mmetọ na gburugburu ebe obibi. The nhazi center nke Japan Yasuda Industry Company na-anabata okirikiri nhọrọ ukwuu nke adiabatic ikuku duct etinyere n'etiti moto aro na cutter aro, na ozugbo na-eduga na agụba na-eji cryogenic jụụ ifufe nke -30 ℃. Nke a ndokwa ukwuu mma ịkpụ ọnọdụ na bara uru na mmejuputa iwu nke oyi ikuku ọnwụ technology. Kazuhiko Yokokawa mere nyocha banyere ikuku dị jụụ na ntụgharị na igwe igwe. N'ime ule egwe ọka, a na-eji mmiri na-egbutu mmiri isi, ikuku okpomọkụ nkịtị (+10 ℃) na ikuku dị jụụ (-30℃) iji tụnyere ike. Nsonaazụ gosiri na ịdịte aka ngwá ọrụ na-eme ka ọ dịkwuo mma mgbe ejiri ikuku dị jụụ mee ihe. Na ntụgharị ule, ngwá ọrụ na-eyi ọnụego nke ikuku dị jụụ (-20 ℃) dị ala karịa nke ikuku nkịtị (+20 ℃).
Mmiri mmiri jụrụ oyi nke nitrogen nwere ngwa abụọ dị mkpa. Otu bụ iji nrụgide karama fesa nitrogen mmiri mmiri ozugbo n'ime ebe a na-egbutu ya dị ka ịcha mmiri. Nke ọzọ bụ udiozi jụụ ngwá ọrụ ma ọ bụ workpiece site na iji evaporation okirikiri nke mmiri mmiri nitrogen n'okpuru okpomọkụ. Ugbu a igbutu cryogenic dị mkpa na nhazi nke titanium alloy, nnukwu ígwè manganese, ígwè siri ike na ihe ndị ọzọ siri ike ịhazi. KPRaijurkar nakweere ngwá ọrụ carbide H13A ma jiri ngwá ọrụ jụrụ oyi nke nitrogen iji mee nnwale igbutu cryogenic na alloy titanium. Nsonaazụ ule gosiri na e jiri ya tụnyere usoro ịcha ọdịnala, a kpochapụrụ ngwá ọrụ n'ụzọ doro anya, belata okpomọkụ site na 30%, na mma nrụpụta elu workpiece dị mma. Wan Guangmin nakweere usoro jụrụ oyi na-apụtaghị ìhè iji mee nnwale igbutu cryogenic na ígwè manganese dị elu, a na-ekwukwa nsonaazụ ya. Mgbe ị na-agbaso usoro nju oyi na-apụtaghị ìhè iji hazie ígwè manganese dị elu na cryogenic, a na-ewepụ ike ngwá ọrụ ahụ, a na-ebelata iyi ngwá ọrụ ahụ, a na-eme ka ihe ịrịba ama na-arụ ọrụ siri ike dịkwuo mma, na-eme ka elu elu nke workpiece dịkwuo mma. Wang Lianpeng et al. nakweere usoro ịfesa nitrogen mmiri mmiri n'ime igwe ọkụ dị ala nke igwe anaghị agba nchara 45 na ngwaọrụ igwe CNC, wee kwuo maka nsonaazụ ule. Enwere ike ịkwalite ịdịte ngwa ngwa na ịdị mma elu workpiece site na ịnakwere usoro ịgbasa mmiri nitrogen n'ime igwe ọkụ dị ala nke igwe anaghị agba nchara 45.
Na mmiri mmiri nitrogen jụrụ steeti nhazi, carbide ihe iji jikọọ ike na-ehulata, mgbaji siri ike na nguzogide corrosion, ike, ike na-abawanye na okpomọkụ dị ala ya mere cemented carbide ọnwụ ngwá ọrụ na mmiri mmiri nitrogen jụrụ nwere ike jikọọ ndị magburu onwe igbutu arụmọrụ, dị ka na ụlọ okpomọkụ, na arụmọrụ ya kpebisiri ike site na ọnụ ọgụgụ nke ejikọta oge. Maka nchara dị elu, yana cryogenic, ike na-abawanye na ike mmetụta dị ala, mana n'ozuzu ya nwere ike jikọta arụmọrụ ịkpụ ka mma. Ọ na ụfọdụ ihe na cryogenic mma nke ya ọnwụ machinability ẹkenịmde ọmụmụ, nhọrọ nke ala carbon ígwè AISll010, elu carbon ígwè AISl070, agba ígwè AISIE52100, titanium alloy Ti-6A 1-4V, aluminom alloy A390 ise ihe, mmejuputa atumatu nke nnyocha na nwale: N'ihi na magburu onwe brittleness na-enweta site cryogenic ọnwụ nwere ike ịbụ. Maka igwe carbon dị elu na nchara na-ebu, ịrị elu okpomọkụ na mpaghara ịkpụ na ọnụ ọgụgụ iyi ngwá ọrụ nwere ike igbochi site na mmiri jụrụ oyi. Na ịcha nkedo aluminum alloy, ngwa nke cryogenic jụrụ nwere ike melite ngwá ọrụ ike ike na ngwá ọrụ iguzogide silicon frasi abrasive wear ikike, na nhazi nke titanium alloy, n'otu oge cryogenic jụrụ ngwá ọrụ na workpiece, bara uru ala ọnwụ okpomọkụ ma wepụ kemịkalụ affinity n'etiti titanium na ngwá ọrụ ihe.
Ngwa ndị ọzọ nke nitrogen mmiri mmiri
Satịlaịtị Jiuquan zipụrụ ọdụ ụgbọ mmanụ pụrụ iche nke etiti ka ọ mepụta nitrogen mmiri mmiri, ihe na-eme mmanụ rọketi, bụ nke a na-agbanye n'ime ụlọ ọkụ na oke nrụgide.
Elu okpomọkụ superconducting ike cable. A na-eji ya eme ka ọkpọkọ mmiri na-ekpo ọkụ na nlekọta mberede. Etinyere na cryogenic stabilization na cryogenic quenching nke ihe. A na-ejikwa nkà dị nro nitrogen mmiri mmiri (mgbasa ọkụ na ihe mgbochi oyi na ngwa ụlọ ọrụ). Nka nka ịgha mkpụrụ akụ na ụba nitrogen. Nka nka mmiri mmiri nitrogen nke ezigbo mmiri mmiri dobe jet, na-eme nyocha mgbe niile. Nabata nitrogen n'okpuru ala na-emenyụ ọkụ, ọkụ na-ebibi ngwa ngwa, ma kpochapụ mmebi nke mgbawa gas. Gịnị mere ịhọrọ mmiri mmiri nitrogen: N'ihi na ọ cools ngwa ngwa karịa ụzọ ndị ọzọ, na ọ dịghị meghachi omume kemịkalụ na ndị ọzọ bekee, ukwuu throttles ohere na-enye a akọrọ ikuku, ọ bụ gburugburu ebe obibi enyi na enyi (mmiri mmiri nitrogen bụ ozugbo volatilized n'ime ikuku mgbe ojiji, na-enweghị na-ahapụ ihe ọ bụla mmetọ), ọ dị mfe na adaba iji.
Ngwa HL Cryogenic
Ngwa HL Cryogenicnke e hiwere na 1992 bụ akara ejikọtara na yaỤlọ ọrụ HL Cryogenic Equipment Co., Ltd. HL Cryogenic Equipment kwadoro imewe na imepụta nke High Vacuum Insulated Cryogenic Pipe System na ihe nkwado yiri ya iji gboo mkpa dị iche iche nke ndị ahịa. The Vacuum Insulated Pipe na Flexible Hose na-wuru na nnukwu oghere na multi-layer multi-screen multi-screen insulated things, na-agafe usoro ọgwụgwọ teknụzụ siri ike na ọgwụgwọ dị elu, nke a na-eji maka ịnyefe oxygen mmiri mmiri, nitrogen mmiri mmiri, mmiri mmiri argon, mmiri mmiri hydrogen, mmiri mmiri helium, liquefied ethylene gas LEG na LNGquefied .
Ngwaahịa usoro nke Phase Separator, Vacuum Pipe, Vacuum Hose na Vacuum Valve na HL Cryogenic Equipment Company, nke gafere a usoro nke oké nlezianya teknuzu ọgwụgwọ, na-eji maka ịnyefe nke mmiri oxygen, mmiri mmiri nitrogen, mmiri mmiri argon, mmiri mmiri hydrogen, mmiri mmiri helium, LEG na LNG, na ngwaahịa ndị a na-eje ozi maka cryogenic akụrụngwa (eg cryogenic inbox nchekwa tank, wdg) ikuku oxygen. Gases, Aviation, Electronics, Superconductor, chips, pharmacy, biobank, nri & ihe ọṅụṅụ, mgbakọ automation, chemical engineering, iron & steel, roba, mmepụta ihe ọhụrụ na nchọpụta sayensị wdg.
Oge nzipu: Nov-24-2021
