Habka Wax-soo-saarka ee Gariiradaha Microchannel (MCHEs)

Soo saarida MCHEs waa sax{0}nidaam la wado oo isku xidha sayniska shay, qaabaynta extrusion, iyo teknooloojiyada ku biiritaanka kulaylka, looguna talagalay in la abuuro ultra{1} channels socodka yar yar (0.1-2 mm) ee wareejinta kulaylka hufan. Talaabooyinka muhiimka ah waa sida soo socota:

1. Diyaarinta Qalabka Aluminium Aloy

MCHEs waxay inta badan isticmaalaan aluminium aluminium (tusaale, 3003, 6061) sababtoo ah miisaankooda fudud, kuleylkooda sare, iyo qiimaha - waxtarkooda.

Xulashada agabka: Sare {{0}Aluminium ingots saafi ah waxaa lagu qasay walxo alloying ah (magnesium, silicon) si kor loogu qaado xoogga makaanikada iyo iska caabinta daxalka, buuxinta ASTM B209 ama EN 573-3 heerarka.

Horudhac u samaynta: Sagxadaha gudaha waa la gooyaa (iyadoo la isticmaalayo nadiifiyeyaasha alkaline) oo la miiray (oo lagu daray nitric acid) si looga saaro oksaydhka, saliidaha, ama wasakhda{0}muhiim u ah hubinta soo saarista isku midka ah iyo tayada birta.

2. Microchannel Flat Tube Extrusion

Talaabadani waxay samaysaa "xudunta" MCHE-yada: tuubooyin fidsan oo leh microchannels badan oo isbarbar socda.

Dejinta Extrusion: Billet aluminium alloy ah oo kuleyl ah (450-500 darajo) ayaa lagu riixaa iyada oo loo marayo saxsanaan - dhinta injineernimada (oo leh microchannel{3}} godad qaabaysan) iyada oo la sii marinayo madbac biyo ah. Naqshadaynta dhinta ayaa si toos ah u go'aamisa cabbirka kanaalka (sida caadiga ah<1 mm for high-efficiency models) and distribution.

Qiyaasta cabbirka: Tuubada fidsan ee fidsan ayaa si degdeg ah loo qaboojiyey (iyada oo loo sii marayo hawo ama biyo deminta) si loo ilaaliyo xasilloonida cabbirka, ka dibna la gooyo dhererka loo baahan yahay (laga bilaabo 0.5 m ilaa 6 m, iyadoo ku xiran codsiga).

Hubinta Tayada: Mikromitirada leyserku waxay xaqiijiyaan dhexroorka kanaalka, dhumucda gidaarka, iyo fidsanaanta{0}}dulqaadyada waxaa lagu xakameynayaa ±0.02 mm gudahooda si looga fogaado iswaafajinta caabbinta socodka.

3. Fins Stamping & Samaynta

Fins ayaa lagu daraa tuubooyinka fidsan si loo ballaariyo aagga wareejinta kulaylka (waxyaabaha muhiimka ah ee waxtarka MCHE).

Habka Shaabadaynta: Waraaqaha aluminiumka ah (0.1-0.2 mm dhumucdiisuna) waxa lagu quudiyaa saxaarad saxan si loo abuuro qaabab fin ah{2}Nashqada caadiga ah waxaa ka mid ah baalal-lauvered (oo loogu talagalay qaska qulqulka hawada ee la xoojiyey) ama baalal jiingado ah (is koobid).

Kahor{0}Daawaynta Dahaarka: Fins waxa laga yaabaa in lagu sameeyo daawayn dusha sare ah (tusaale, daahan beddelka chromate) si loo hagaajiyo ku dheggan oo leh qulqulka naxaasta iyo kor loogu qaado caabbinta daxalka.

4. Xudunta Golaha (Tube{1}}Fin Stacking)

Tuubooyinka fidsan iyo baalalku waxa la isugu geeyaa "kulul beddelka xudunta"- unugga shaqada aasaasiga ah.

Isku-duubni Lakab lehTuubooyinka fidsan waxay si siman u siman yihiin, iyadoo baalal la geliyo inta u dhaxaysa tuubooyinka ku xiga si ay u sameeyaan sandwich - qaab dhismeed la mid ah. Xakamaynta ku meel gaadhka ah waxay ku hayaan kulanka si ay uga hortagaan qallafsanaan.

Xakamaynta farqiga: Farqiga u dhexeeya tuubooyinka iyo baalalka ayaa lagu hayaa<0.05 mm to ensure full contact during brazing, minimizing thermal resistance at the interface.

5. Vacuum brazing (ku biiritaanka kulaylka)

Vacuum brazing waa tillaabada muhiimka ah ee si joogta ah ugu xidha tuubooyinka fidsan iyo baalasha dalool -xuddun adag{1}} si ka duwan alxanka dhaqanka, waxay hubisaa xoog dhismeed sare iyo dhaqdhaqaaqa kulaylka.

Codsiga FluxLakabka khafiifka ah ee aluminium - silikon (Al{1}}Si) qulqulka brazing ( barta dhalaalaysa ~ 577 darajo ) ayaa lagu buufiyaa ama lagu dhex daraa xudunta la ururiyey si looga hortago oksaydhka inta lagu jiro kululaynta.

Habaynta Foornada Vacuum: Xuddunta waxa lagu riday foornada faakuumka (cadaadiska<10⁻³ Pa) and heated to 580–620°C. At this temperature, the flux melts and flows along the tube-fin interfaces, while the aluminum base material remains solid. The vacuum environment eliminates air bubbles, ensuring uniform brazing.

Qaboojin: Foornada si tartiib ah ayaa loo qaboojiyaa (50-100 darajo / saac) si loo yareeyo diiqada kulaylka, ka hortagga microcracks ee microchannels.

6. Goynta & Mashiinka Dekedda

Xudunta brazed ayaa loo habeeyey si loogu daro dekedo isku xidha oo laga soo galo dareeraha.

Goynta Xuddunta: miinshaar CNC ayaa xudunta u gooysa cabbirka alaabta ugu dambeysa (tusaale, 300×400 mm qaboojiyaha ganacsiga ee MCHEs), oo leh qaboojiye loo isticmaalo si looga fogaado kulaylka{4}}

Qodista Dekedda & Taabashada: Cidhifyada tubooyinka fidsan waa la daloolinayaa si ay u sameeyaan dekedo kala duwan, ka dibna la taabto si loogu daro dunta (tusaale, M10 ama 1/4 NPT) si loogu xidho khadadka qaboojiyaha. Aaladaha wax-ka-saarista ayaa ka saara xiirashada birta si looga hortago xannibaadda kanaalka.

7. Tijaabada Cadaadiska & Ogaanshaha Leak

MCHE-yadu waxay u baahan yihiin daadad adag{0}} cidhiidhi (muhiim u ah qaboojiyaha{1} codsiyada ku salaysan sida AC ama qaboojiyaha).

Tijaabada Cadaadiska: The core is filled with high-pressure nitrogen (1.5–2 times the design working pressure, typically 2–3 MPa) and held for 30–60 minutes. Pressure gauges monitor for drops-any loss >0.01 MPa waxay muujinaysaa soo daadasho.

Helium Leak OgaanshahaCodsiyada saxda ah ee sare - (tusaale, baabuurta AC), spectrometry mass spectrometry helium waxa loo isticmaalaa in lagu ogaado leaksyada yar yar (xasaasi ilaa 1×10⁻⁹ Pa·m³/s).

8. Daawaynta Dusha & Kahortaga{1}Daaha Daxalka (Ikhtiyaar)

MCHE-yada loo isticmaalo deegaan qallafsan (tusaale, badda ama meelaynta qoyaanka sare), ilaalinta daxalka dheeraadka ah ayaa lagu dabaqaa:

Codsiga Dahaarka: Xabagta phenolic, epoxy, ama dahaarka fluoropolymer ayaa lagu buufiyaa ama korantada lagu shubaa oogada xudunta u ah. Dhumucda dahaarka waxaa lagu xakameynayaa 20-50 μm si loo dheellitiro caabbinta daxalka iyo waxtarka wareejinta kulaylka.

Daawaynta: Xuddunta dahaarka leh ayaa lagu dubay 120-180 digrii 30-60 daqiiqo si loo daaweeyo daahan, sameynta lakab cufan oo aan nadiif ahayn.

9. Kormeerka Tayada Ugu Dambeysa & Baakadaha

Tijaabada DhamaystiranKormeerayaashu waxay eegayaan cabbirada (iyaga oo isticmaalaya mishiinada cabbiraadda isku dhafka ah), (ciladaha sida dildilaaca ama haraaga qulqulka), oo waxay sameeyaan tijaabooyin ku habboon wareejinta kulaylka random (iyaga oo isticmaalaya tunnel dabaysha si loo cabbiro heerka kulaylka ee xaaladaha caadiga ah).

Baakadaha: MCHE-yada u qalma waxaa lagu duuduubay qoyaan{0}}filimka aan caddayn waxaana lagu soo raray xumbo{1}kartoonyo safan si looga hortago burbur inta lagu jiro gaadiidka.

Habkani waxa uu hubinayaa in MCHE-yadu ay buuxiyaan shuruudaha shaqo ee adag ee codsiyada sida qaboojiyaha ganacsiga, qaboojiyaha baabuurta, iyo nidaamyada HVAC{0}}isku dheelitirka hufnaanta, isafgaradka, iyo isku halaynta.

HYLITA waxa ay ku qalabaysan tahay wax soo saar toos ah iyo khadadka isku xidhka, khadadka wax soo saarka brazing si buuxda u wada toosan, iyo khadadka tijaabada daadinta helium oo si toos ah u shaqaynaya.

1. Qalabka Isku-xidhka Si Atoomaatiga ah u Dhan

Khadadka Shaabada Toos ah oo Si Buuxda leh ee Qaybaha Muhiimka ahTaas oo keentay 49% korodhka isku halaynta tayada iyo 67% horumarinta hufnaanta sahayda ee qaybaha aan caadiga ahayn{{2}.

Khadadka Isku-xidhka Alaabta Dhammaystiran ee Toomaatigga ahAwood u yeelashada kor u qaadista 51% ee hufnaanta golaha iyo hagaajinta xasilloonida tayada ilaa 99.8%.

2. Qalabka Brazing Si Atoomaati ah oo Dhamaystiran

Khadadka Wax-soosaarka Toos ah oo Si Toos ah U DhashayTaas oo horseedaysa in 53% ay kor u kacdo isku halaynta tayada, iyada oo heerka gudbinta alaabada la dhammeeyey ee la soo xidhay uu gaadhay 99.7%.

Khadadka Wax-soo-saarka Toomaatiga ah oo Dhamaystiran oo leh Foornooyinka Brazing VacuumGaaritaanka 57% korodhka isku halaynta tayada, iyada oo heerka gudbinta ee alaabta la dhammeeyey ee la dhammeeyey ay gaadhay 99.7%.

3. Qalabka Dahaarka/Qalabka Tijaabada Si Atoomaatiga ah oo dhamaystiran

Khadadka Wax-soo-saarka Dahaarka Dusha sare ee Toomaatig ah oo dhammaystiranBixinta 55% horumarinta tayada isku halaynta, iyada oo heerka gudbinta ee alaabta la dhammeeyey ee dahaadhka ahi ay gaadhay 99.8%.

Khadadka Tijaabada Fakium Helium Oo Si Atoomaati Ah U Dhashay100% dhammaan alaabooyinka ayaa mara tijaabada daadinta vacuum helium, hubinta 100% heerka u-qalmitaanka tijaabada helium ka hor dhalmada.

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