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 ma na-adọta ibe ha, nke mere na ma superconductor na magnet ebighị ebi nwere ike iguzogide ike ndọda ma kwụsịtụ ma ọ bụ kpọgidere kpodoro isi ala n'okpuru ibe gị.
Ngwa eletrọnịkị mmepụta na nnwale
Nyochaa nrụgide gburugburu ebe obibi bụ ịhọrọ ọnụọgụ nke ihe nlereanya gburugburu ebe obibi, tinye ihe kwesịrị ekwesị nke nrụgide gburugburu ebe obibi na akụrụngwa ma ọ bụ igwe dum, na-eme ka usoro ahụ ghara imebi ihe, ya bụ, ntụpọ na usoro mmepụta na ntinye, na nye mgbazi ma ọ bụ nnọchi. Nyochaa nrụgide gburugburu ebe obibi bara uru ịnakwere okirikiri okpomọkụ yana ịma jijiji enweghị usoro. Okpomọkụ okirikiri ule bụ ịnakwere elu okpomọkụ mgbanwe ọnụego, nnukwu thermal nrụgide, nke mere na akụkụ nke dị iche iche ihe, n'ihi na nkwonkwo ọjọọ, ihe onwunwe onwe asymmetry, ntụpọ na usoro kpatara nsogbu zoro ezo na agile ọdịda, na-anabata na Ọnụego 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
Igwe ihe igwe nke Cryogenic planetary bụ mmiri mmiri nitrogen gas na-aga n'ihu n'ime igwe igwe bọọlụ a kwadebere nke nwere mkpuchi nchekwa okpomọkụ, ikuku oyi ga-abụ ntụgharị ọsọ dị elu nke ọkụ na-eme site na bọọlụ na-egweri tank ozugbo, nke mere na bọọlụ na-egweri. tank nwere ihe, egweri bọl bụ mgbe 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
Mbelata cryogenic bụ iji mmiri mmiri cryogenic dị ka mmiri mmiri nitrogen, mmiri mmiri carbon dioxide na ikuku dị jụụ na-efesa sistemu nke igbutu mpaghara, na-ebute mbelata mpaghara mpaghara cryogenic ma ọ bụ steeti ultra-cryogenic, na-eji cryogenic brittleness nke workpiece. n'okpuru cryogenic ọnọdụ, melite workpiece ọnwụ machinability, ngwá ọrụ ndụ na workpiece elu àgwà. Dị ka ihe dị iche nke jụrụ oyi, cryogenic ọnwụ nwere ike kewaa n'ime jụụ ikuku ọnwụ na mmiri mmiri nitrogen jụrụ. Cryogenic oyi 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 igwu egwu. ọrụ nke jụrụ oyi, iwepụ mgbawa, 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 oyi ifufe nke -30 ℃.This ndokwa ukwuu mma ịkpụ ọnọdụ. ma bara uru na mmejuputa teknụzụ ịkpụ ikuku oyi. 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 steeti, 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 n'ime mmiri mmiri nitrogen jụrụ nwere ike jikọọ ndị kasị mma ịkpụ arụmọrụ, dị ka na ọnụ ụlọ okpomọkụ, na arụmọrụ ya kpebisiri ike site na ọnụ ọgụgụ nke njikọ njikọ. 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 igbutu machinability nwere 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 iwu. nke nyocha na nyocha: N'ihi ọmarịcha brittleness na cryogenic, enwere ike nweta nsonaazụ machining a chọrọ site na ịkpụ cryogenic. 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 kpochapụ kemịkalụ mmekọrịta dị n'etiti titanium na akụrụngwa akụrụngwa.
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 emeghachi omume kemịkal na ndị ọzọ bekee, nke ukwuu throttles ohere na-enye a akọrọ ikuku, ọ bụ gburugburu ebe obibi enyi na enyi (mmiri mmiri nitrogen na-na volatilized ozugbo n'ime ikuku mgbe ejiri ya, na-ahapụghị ihe ọ bụla. mmetọ), ọ dị mfe ma dị mma iji.
Ngwa HL Cryogenic
Ngwa HL Cryogenicnke tọrọ ntọala na 1992 bụ akara ejikọtara naỤlọ 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 insulated ihe pụrụ iche, ma 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 liquefied ọdịdị gas LNG.
A na-eji usoro ngwaahịa nke Separator Phase, Vacuum Pipe, Vacuum Hose na Vacuum Valve na HL Cryogenic Equipment Company, bụ nke gafere usoro ọgwụgwọ teknụzụ siri ike, maka ịnyefe oxygen mmiri, mmiri mmiri nitrogen, argon mmiri mmiri, hydrogen mmiri, mmiri mmiri. helium, LEG na LNG, na ngwaahịa ndị a na-arụ ọrụ maka akụrụngwa cryogenic (dịka ebe nchekwa nchekwa cryogenic, dewar na igbe oyi, wdg) na ụlọ ọrụ nkewa ikuku, gas, ụgbọ elu, eletrọnịkị, superconductor, ibe, ụlọ ahịa ọgwụ, biobank, nri & ihe ọṅụṅụ, mgbakọ automation, injinia kemịkalụ, ígwè & ígwè, rọba, mmepụta ihe ọhụrụ na nchọpụta sayensị wdg.
Oge nzipu: Nov-24-2021
