Doxalinu Cuil microchannel (MCHEs)

Defar MCHEs mooy anam wu jaar yoon { 0}} dafay boole science materiel, moule extrusion, ak termaal yuy boole xarala yu bees yi, ñu boole leen ngir sos chaine de débit bu baax (0.1–2 mm) ngir mëna toxal tàngoor. Jéego yu am solo yi ñooy:

1. Waajalug alloya alloy dafay waajal

MCHE yi dañuy njëkka jëfandikoo alloy aluminium (lu melni, 3003, 6061) ndax seen yoon bu woyof, bu am doole, ak njëg yu bari-nafférence.

Tanneef: Highl{- ingots aluminium yi dañu leen jaxase ak ay mbir yu wuute (magnesium, silicon) ngir gëna dëgëral doole mekanik ak mbañeel corrosion, méngoo ak ASTM B209 wala EN EN 573-3 standard.

Defar: surface ingot yi dañu yàqu (jëfandikoo alkaline) ba noppi ñu dagg ko (ak asid nitrik bu dilute) ngir dindi oxide yi, diw yi, wala impurite yi {0}rique ngir mëna am kalite extrusion ak brazing ci ginaaw.

2.

Jéego bii mooy "core" bu MCHEs: tube yu plat yu am microchannel yu bari.

Defal liggéey bi: Benn billet alloy aluminium bu tàng (450-500 degre) dañu koy puus ci biir bu jaar yoon {2}geered dee (ak microchannel {3}) jaaraleko ci press hydraulique. Designu dee bi mooy wane dayo chaine bi (dañuy faral di<1 mm for high-efficiency models) and distribution.

Sime: Tuub bu plat bi dafay sedd bu baax (ci air wala quenching ndox) ngir mëna am stabilite dimensionel, ginaaw ga ñu dagg ko ci guddaay biñ soxla (li ko dalee ci 0.5 m ba 6 m, lépp di aju ci aplikaasioŋ bi).

Xool kalite yi: Micrometre yu laser dañuy xool diametre chaine, dëgëraay ci miir bi, ak platness {) { 0}}tons ñu ngi koy saytu ci ± 0.02 mm ngir moytu ñàkka mëna xeex.

3. Fësal

Fins yi dañu leen di yokk ci tub yu plat yi ngir yaatal surface bi ñuy toxal tàngoor (facteur bu am solo ci efficacité MCHE).

Doxalin: Fiche aluminium (0.1-0.2 mm dëll) dañu leen di def ci benn pres bu jaar yoon ngir sos motif fin { {2} komm yi dañuy àndaale ak fins yu gëna neex (ngir am turbulence bu gëna baax) wala fins yuñ corruged (ngir kompactness).

Prebum: Fins yi mën nañu def paj mi (lu melni, coating chromate) ngir gëna mëna ànd ak flux brazing ak gëna suqali poste-brosion bi.

4. Asammbale bu jaar yoon (Tube {1} Lu war)

Tube yu flat ak ay fins ñu ngi leen boole ci benn "conne de weccoo xol"- bi benn jumtukaayu fonctionnel bu yomb.

Taxawal: tube flat yi dañu méngoo ak paralel, ak fins yuñ dugal ci diggante tube yi ci wetam ngir forme sandwich- niroo. Xaaj yi ñuy jëfandikoo ngir saytu temporeer yi dañuy tëye assemblée bi ci barab bi ngir moytu ñu bañ leen.

Kontrol: Diggante tube yi ak fins yi dañuy wéy ci<0.05 mm to ensure full contact during brazing, minimizing thermal resistance at the interface.

5. Njaayum voûte (Jëf ci thermique)

Fiir ume mooy jéego bu am solo biy lëkkaloo tube flat ak fins ci biir fu sacc- nar core {1}brèle bu nuru jaaykat cosaan ak aada, dafay tax ñu am doole bu bari ak doxalinu thermique.

Flux: Benn layer bu woyof bu aluminium-sicon (Al{1}Si) brazing flux (point bouse ~577 degre) dañu koy sprey wala ñu dagg ko ci core biñ boole ngir moytu oxidation bi ñuy tàngal.

Doxalinu furnace: core bi dañu koy def ci biir fouru aspiratër (prepré<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.

sedd: four bi dañu koy seddal ndànk (50 ba 100 degre / waxtu) ngir wàññi stress thermique, di tere microcrack yi ci microchannel yi.

6. Dagg ak defar masin

core biñ brazed dañu koy jëfandikoo ngir yokk portu lëkkaloo yi ngir dugg ci ndoxu ndox wala génn.

Tëj bu baax: CNC dafa gis core bi ba ci dayo produit bi mujj (lu melni, 300 ×400 mm ngir MCHE congelatër yi ñuy jaay), ak coolant bi ñuy jëfandikoo ngir moytu tàngoor {4} nga génne.

Port Drilling & tapping: Fippu tube yu plat yi dañu leen di for ngir defar ay portu manifold, ba noppi ñu jël ko ngir yokk buum yi (lu melni, M10 wala 1/4 NPT) ngir boole ligne refrigerant yi. Jumtukaayi defar yi dañuy dindi ay mbaxna yu wen ngir moytu blokaas yi ci chaine yi.

7. Xaar-jaar ak dogal bu njëkk

MCHEs yi dañuy laaj nga senn bu dëgër- na (kritik ngir refrigerant- aplikaasioŋ yu lalu ci AC wala refrigeration).

Bësal test: 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 dafay wane ni amna fu sa yaram di jaar.

Diggante bu kawe: Ngir gëna bari- aplikaasioŋu AC oto (lu melni, AC), spectrometry masse helium dañu koy jëfandikoo ngir gis micro{3}looaks (sensitivite wàcci ba 1 ×10⁂⁄⁄ /s).

2

Ci MCHE yi ñuy jëfandikoo ci environmaa yu metti (lu melni, géej wala kawe {-hhidity), aar ci aar korosion bi:

Aplikaasioŋ: resin phenolic, epoxy, wala coating fluoropolymer ñu ngi koy sprey wala electrophoresed ci kaw core bi. Dexu coating bi ñu ngi koy saytu ci 20-50 μm ngir yemale bañaale corrosion bi ak njariñu tàngoor wi.

Ciar: core coated bi dañu ko lakk ci 120 ba 180 degre ci diiru 30 ba 60 simili ngir faj coating bi, di defar benn layer bu dëgër.

9. Xaarandi Kalite bu mujj

Test bu mat: Inspectër yi dañuy saytu dimension yi (koor coordonnée yi ñuy natt), (ngir def ay njuumte yu melni cracks wala residu flux), ba noppi def test efficacité u tàngoor ci anam wu bari (jëfandikoo tunelu ngelaw ngir natt tolluwaayu weccoo tàngoor ci anam wu ñuy jëfandikoo).

Packing: MCHE yu am njariñ ñu ngi leen boole ci moustur {- filmu bu amul benn njariñ, ñu defar ko ci karton- ay karton ngir moytu yàqu-yàqu ci diiru dem bi ak dikk bi.

Doxalin bii dafay tax MCHEs mëna dëppoo ak li ñuy laaj ci wàllu liggéey yu melni frigo ci njaay, klimaa bi ci oto, ak sistem HVAC-balancing, compact, ak wóor.

HYLITA amna liggéey bu otomatise ak ligne ensemble, ligne de production brazing bu mat sëkk, ak ligne test helium yu otomatise.

1.

Lignu estampe otomatise ngir ay komponent yu am soloBuñu sukkandikoo ci yokkute ci 49% ci wóolu kalite ak yokkute bu 67% ci efficacité bi ci joxewul {{2}standard.

Néew yu am njariñ yu mat sëkkYokk 51% ci yokkute ci efficacité ensemble ak gëna dëgëral 99.8%.

2.

Lignu liggéey yu baax ak Tunnel{)Lu jëm ci 53% ci yokkute ci kalite, ak limu produit yu ñu defaree brazed ba 99.7%.

Lignu yiy doxal otomatik ak Furnace à videYokkateg 57% ci yokkute ci kalite, ak limu produit yu ñu defaree brazed ba 99.7%.

3.

Lignu de soute de soutoorSoo joxee yokkute bu 55% ci wóor ci wóor, ak limu produit yiñ togg ba pare tollu ci 99.8%.

Njàngat bu baax ci vanne de voûte voûte bu baax100% ci produit yépp ñu ngi def test helium ci biir aspiration, muy fexe ba 100% ci 100% ci test helium bi laata ñuy joxe.

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